fix(langgraph): keep the recursion budget and skip Send tasks when applying inserted input

feat(langgraph): apply input inserted into a running run at declared safe steps
2026-11-07 22:52:34 +01:00 · 2026-10-13 10:37:09 -04:00 · 2026-10-13 10:37:09 -04:00
138 changed files with 2643 additions and 10158 deletions
@@ -33,7 +33,7 @@ jobs:
          working-directory: libs/sdk-py

      - name: Login to Docker Hub
-        uses: docker/login-action@81c6f93d4bc991e510b342a00b419b3bb4efc5c6 # v4
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4
        if: ${{ !github.event.pull_request.head.repo.fork }}
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
@@ -33,7 +33,7 @@ jobs:
          cache-suffix: test-${{ inputs.working-directory }}
          working-directory: ${{ inputs.working-directory }}
      - name: Login to Docker Hub
-        uses: docker/login-action@81c6f93d4bc991e510b342a00b419b3bb4efc5c6 # v4
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4
        if: ${{ !github.event.pull_request.head.repo.fork }}
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
@@ -31,7 +31,7 @@ jobs:
          cache-suffix: "test-langgraph"
          working-directory: libs/langgraph
      - name: Login to Docker Hub
-        uses: docker/login-action@81c6f93d4bc991e510b342a00b419b3bb4efc5c6 # v4
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4
        if: ${{ !github.event.pull_request.head.repo.fork }}
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
@@ -48,7 +48,7 @@ jobs:
        working-directory: ${{ inputs.working-directory }}

      - name: Upload build
-        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: test-dist
          path: ${{ inputs.working-directory }}/dist/
@@ -76,13 +76,13 @@ jobs:
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1

-      - uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          name: test-dist
          path: ${{ inputs.working-directory }}/dist/

      - name: Publish to test PyPI
-        uses: pypa/gh-action-pypi-publish@7245906fb61fa33a13554f9d5fb856fe61758086 # release/v1
+        uses: pypa/gh-action-pypi-publish@dc37677b2e1c63e2034f94d8a5b11f265b73ba33 # release/v1
        with:
          packages-dir: ${{ inputs.working-directory }}/dist/
          verbose: true
@@ -114,7 +114,7 @@ jobs:
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      - name: Set up Python
-        uses: actions/setup-python@6d4fd22b20465ccc0f7354476588e8df7c9ca0e0 # v7.1.0
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
        with:
          python-version: "3.11"
      - name: Run check_sdk_methods script
@@ -33,7 +33,7 @@ jobs:
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1

      - name: Setup Python
-        uses: actions/setup-python@6d4fd22b20465ccc0f7354476588e8df7c9ca0e0 # v7.1.0
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
        with:
          python-version: '3.11'

@@ -51,7 +51,7 @@ jobs:
        working-directory: ${{ inputs.working-directory }}

      - name: Upload build
-        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: dist
          path: ${{ inputs.working-directory }}/dist/
@@ -167,7 +167,7 @@ jobs:
          enable-cache: false
          working-directory: ${{ inputs.working-directory }}

-      - uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          name: dist
          path: ${{ inputs.working-directory }}/dist/
@@ -259,13 +259,13 @@ jobs:
          enable-cache: false
          working-directory: ${{ inputs.working-directory }}

-      - uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          name: dist
          path: ${{ inputs.working-directory }}/dist/

      - name: Publish package distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@7245906fb61fa33a13554f9d5fb856fe61758086 # release/v1
+        uses: pypa/gh-action-pypi-publish@dc37677b2e1c63e2034f94d8a5b11f265b73ba33 # release/v1
        with:
          packages-dir: ${{ inputs.working-directory }}/dist/
          verbose: true
@@ -301,7 +301,7 @@ jobs:
          enable-cache: false
          working-directory: ${{ inputs.working-directory }}

-      - uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          name: dist
          path: ${{ inputs.working-directory }}/dist/
@@ -55,7 +55,7 @@ jobs:
    steps:
      - name: Generate GitHub App token
        id: app-token
-        uses: actions/create-github-app-token@64ab729a6294000f5aa4a4bc0b73d1f32bc45510 # v3.3.0
+        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
        with:
          app-id: ${{ secrets.ORG_MEMBERSHIP_APP_ID }}
          private-key: ${{ secrets.ORG_MEMBERSHIP_APP_PRIVATE_KEY }}
@@ -190,7 +190,7 @@ jobs:
    steps:
      - name: Generate GitHub App token
        id: app-token
-        uses: actions/create-github-app-token@64ab729a6294000f5aa4a4bc0b73d1f32bc45510 # v3.3.0
+        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
        with:
          app-id: ${{ secrets.ORG_MEMBERSHIP_APP_ID }}
          private-key: ${{ secrets.ORG_MEMBERSHIP_APP_PRIVATE_KEY }}
@@ -40,7 +40,7 @@ jobs:
    steps:
      - name: Generate GitHub App token
        id: app-token
-        uses: actions/create-github-app-token@64ab729a6294000f5aa4a4bc0b73d1f32bc45510 # v3.3.0
+        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
        with:
          app-id: ${{ secrets.ORG_MEMBERSHIP_APP_ID }}
          private-key: ${{ secrets.ORG_MEMBERSHIP_APP_PRIVATE_KEY }}
@@ -24,39 +24,6 @@ TEST=path/to/test.py make test

 Other pytest arguments can also be supplied inside the `TEST` variable.

-## Direction: LangGraph is a runtime
-
-LangGraph is consolidating as the low-level runtime for agents and workflows:
-graph execution, checkpointing, streaming, and interrupt/resume. Critical
-production systems and agent harnesses run on it, so correctness and stability
-come first. It is moving away from being a friendly SDK for building agents
-directly; agent development belongs one layer up, on a harness — Deep Agents
-(github.com/langchain-ai/deepagents, a separate repo) is the recommended one.
-
-Optimize contributions for runtime correctness, reliability, performance, and
-simplicity — not for the shortest agent example.
-
- One way to do each thing. A change never adds a way; removals are always
-  deliberate (see below). The number of ways only goes down. No aliases,
-  overloads, extra accepted types, implicit defaults, or customization hooks
-  for convenience: ergonomics alone never justify new public surface.
- The mandate applies to everything that implements runtime behavior, in
-  whichever repo it lives: the graph engine (`langgraph`, `langgraph-core`),
-  the checkpointers (`checkpoint*`), and the server (`langgraph-api`). The
-  client SDKs and CLI stay ergonomic but are thin, faithful clients, never a
-  second implementation of runtime behavior.
- Agent-level packages (`prebuilt`, `langgraph-supervisor`, `langgraph-swarm`,
-  `langgraph-cua`) are maintenance-only: fix bugs, don't add agent features.
-  New examples and docs that build agents should use Deep Agents.
- Remove deliberately, not opportunistically. Removing or changing public
-  behavior must be the stated purpose of the PR and go through the deprecation
-  process — replacement in place, removal version recorded, migration note.
-  Never drop a default or overload as a side effect of an unrelated change.
- Behavior changes land in Python and JS together (the implementations live in
-  separate repos; note in the PR when the other one needs a matching change).
- If a task asks for something this section rules out, say so and propose the
-  runtime-level or harness-level alternative instead of quietly implementing it.
-
 ## Libraries

 The repository contains several Python and JavaScript/TypeScript libraries.
@@ -1,5 +1,5 @@
 version = 1
-revision = 5
+revision = 3
 requires-python = ">=3.10"

 [[package]]
@@ -36,11 +36,11 @@ wheels = [

 [[package]]
 name = "certifi"
-version = "2026.10.19"
+version = "2026.4.22"
 source = { registry = "https://pypi.org/simple" }
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+    { url = "https://files.pythonhosted.org/packages/22/30/7cd8fdcdfbc5b869528b079bfb76dcdf6056b1a2097a662e5e8c04f42965/certifi-2026.4.22-py3-none-any.whl", hash = "sha256:3cb2210c8f88ba2318d29b0388d1023c8492ff72ecdde4ebdaddbb13a31b1c4a", size = 135707, upload-time = "2026-04-22T11:26:09.372Z" },
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 [[package]]
@@ -279,7 +279,7 @@ wheels = [

 [[package]]
 name = "langgraph-checkpoint"
-version = "4.3.1"
+version = "4.3.0"
 source = { editable = "../checkpoint" }
 dependencies = [
    { name = "langchain-core" },
@@ -686,7 +686,7 @@ wheels = [

 [[package]]
 name = "pytest"
-version = "9.2.0"
+version = "9.1.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
    { name = "colorama", marker = "sys_platform == 'win32'" },
@@ -697,23 +697,23 @@ dependencies = [
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 ]
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 [[package]]
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 [[package]]
@@ -27,15 +27,10 @@ from psycopg_pool import ConnectionPool
 from langgraph.checkpoint.postgres import _internal
 from langgraph.checkpoint.postgres.base import (
    _DELTA_PAGE_SIZE,
-    PRUNE_DELETE_THREADS_SQL,
-    PRUNE_STRATEGIES,
    BasePostgresSaver,
    _build_delta_stage1_sql,
    _build_delta_stage2_sql,
    _DeltaStage2Row,
-    _execute,
-    _keep_latest,
-    _refuse_delta_threads,
 )
 from langgraph.checkpoint.postgres.shallow import ShallowPostgresSaver

@@ -406,73 +401,6 @@ class PostgresSaver(BasePostgresSaver):
                (str(thread_id),),
            )

-    def prune(
-        self,
-        thread_ids: Sequence[str],
-        *,
-        strategy: str = "keep_latest",
-    ) -> None:
-        """Prune checkpoints for the given threads.
-
-        `"delete"` removes every checkpoint, write and blob of the threads, in
-        one transaction.
-
-        `"keep_latest"` keeps the latest checkpoint of each namespace (the one
-        `get_tuple` loads, plus its parent when it predates v4 and has pending
-        sends), with its pending writes and the blobs it references, and
-        deletes the rest. A kept checkpoint whose parent it deletes is left with
-        no parent. A subgraph call's namespace is deleted with the root
-        checkpoint the call started from, except a `checkpointer=True`
-        subgraph's, which keeps its latest checkpoint. Each thread is pruned in
-        its own transaction, on one snapshot of it, so a run appending to the
-        thread meanwhile is safe; forking or replaying from a checkpoint being
-        deleted is not. A thread that fails because another transaction changed
-        it leaves the threads before it pruned, and retrying is safe.
-
-        `"keep_latest"` refuses threads that use a `DeltaChannel`, since it
-        rebuilds the latest value from older checkpoints: if any requested
-        thread does, nothing is pruned. A thread that starts using one before
-        its turn in the batch is refused then, after the threads before it.
-
-        Args:
-            thread_ids: The thread IDs to prune.
-            strategy: `"keep_latest"` or `"delete"`.
-
-        Raises:
-            TypeError: If `thread_ids` is a single string.
-            ValueError: If `strategy` is unknown.
-            NotImplementedError: If `strategy` is `"keep_latest"` and a thread
-                uses a `DeltaChannel`.
-            psycopg.errors.SerializationFailure: If another transaction, such
-                as a second prune, changes a thread's rows while `"keep_latest"`
-                prunes it.
-            psycopg.errors.DeadlockDetected: If a second prune of a thread runs
-                at the same time.
-        """
-        if isinstance(thread_ids, str):
-            raise TypeError("thread_ids must be a sequence of thread IDs, not a str")
-        if strategy not in PRUNE_STRATEGIES:
-            raise ValueError(f"Unknown prune strategy: {strategy!r}")
-        thread_ids = [str(t) for t in thread_ids]
-        if not thread_ids:
-            return
-        if strategy == "delete":
-            with self._cursor() as cur, cur.connection.transaction():
-                for sql in PRUNE_DELETE_THREADS_SQL:
-                    cur.execute(sql, (thread_ids,))
-            return
-        with self._cursor() as cur:
-            _execute(cur, _refuse_delta_threads(thread_ids))
-        for thread_id in thread_ids:
-            with self._cursor() as cur:
-                if self.pipe:
-                    # The transaction has to start with its isolation level, and
-                    # in pipeline mode it would take in what ran since the last
-                    # sync.
-                    self.pipe.sync()
-                with cur.connection.transaction():
-                    _execute(cur, _keep_latest(thread_id))
-
    @contextmanager
    def _cursor(self, *, pipeline: bool = False) -> Iterator[Cursor[DictRow]]:
        """Create a database cursor as a context manager.
@@ -27,15 +27,10 @@ from psycopg_pool import AsyncConnectionPool
 from langgraph.checkpoint.postgres import _ainternal
 from langgraph.checkpoint.postgres.base import (
    _DELTA_PAGE_SIZE,
-    PRUNE_DELETE_THREADS_SQL,
-    PRUNE_STRATEGIES,
    BasePostgresSaver,
-    _aexecute,
    _build_delta_stage1_sql,
    _build_delta_stage2_sql,
    _DeltaStage2Row,
-    _keep_latest,
-    _refuse_delta_threads,
 )
 from langgraph.checkpoint.postgres.shallow import AsyncShallowPostgresSaver

@@ -365,55 +360,6 @@ class AsyncPostgresSaver(BasePostgresSaver):
                (str(thread_id),),
            )

-    async def aprune(
-        self,
-        thread_ids: Sequence[str],
-        *,
-        strategy: str = "keep_latest",
-    ) -> None:
-        """Prune checkpoints for the given threads.
-
-        See `PostgresSaver.prune` for what each strategy keeps.
-
-        Args:
-            thread_ids: The thread IDs to prune.
-            strategy: `"keep_latest"` or `"delete"`.
-
-        Raises:
-            TypeError: If `thread_ids` is a single string.
-            ValueError: If `strategy` is unknown.
-            NotImplementedError: If `strategy` is `"keep_latest"` and a thread
-                uses a `DeltaChannel`.
-            psycopg.errors.SerializationFailure: If another transaction, such
-                as a second prune, changes a thread's rows while `"keep_latest"`
-                prunes it.
-            psycopg.errors.DeadlockDetected: If a second prune of a thread runs
-                at the same time.
-        """
-        if isinstance(thread_ids, str):
-            raise TypeError("thread_ids must be a sequence of thread IDs, not a str")
-        if strategy not in PRUNE_STRATEGIES:
-            raise ValueError(f"Unknown prune strategy: {strategy!r}")
-        thread_ids = [str(t) for t in thread_ids]
-        if not thread_ids:
-            return
-        if strategy == "delete":
-            async with self._cursor() as cur, cur.connection.transaction():
-                for sql in PRUNE_DELETE_THREADS_SQL:
-                    await cur.execute(sql, (thread_ids,))
-            return
-        async with self._cursor() as cur:
-            await _aexecute(cur, _refuse_delta_threads(thread_ids))
-        for thread_id in thread_ids:
-            async with self._cursor() as cur:
-                if self.pipe:
-                    # The transaction has to start with its isolation level, and
-                    # in pipeline mode it would take in what ran since the last
-                    # sync.
-                    await self.pipe.sync()
-                async with cur.connection.transaction():
-                    await _aexecute(cur, _keep_latest(thread_id))
-
    @asynccontextmanager
    async def _cursor(
        self, *, pipeline: bool = False
@@ -742,33 +688,6 @@ class AsyncPostgresSaver(BasePostgresSaver):
            self.adelete_thread(thread_id), self.loop
        ).result()

-    def prune(
-        self,
-        thread_ids: Sequence[str],
-        *,
-        strategy: str = "keep_latest",
-    ) -> None:
-        """Prune checkpoints for the given threads.
-
-        See `PostgresSaver.prune` for what each strategy keeps.
-
-        Args:
-            thread_ids: The thread IDs to prune.
-            strategy: `"keep_latest"` or `"delete"`.
-        """
-        try:
-            if asyncio.get_running_loop() is self.loop:
-                raise asyncio.InvalidStateError(
-                    "Synchronous calls to AsyncPostgresSaver are only allowed from a "
-                    "different thread. From the main thread, use the async interface. "
-                    "For example, use `await checkpointer.aprune(...)`."
-                )
-        except RuntimeError:
-            pass
-        return asyncio.run_coroutine_threadsafe(
-            self.aprune(thread_ids, strategy=strategy), self.loop
-        ).result()
-
    def get_delta_channel_history(
        self, *, config: RunnableConfig, channels: Sequence[str]
    ) -> Mapping[str, DeltaChannelHistory]:
@@ -2,7 +2,7 @@ from __future__ import annotations

 import random
 import warnings
-from collections.abc import Generator, Mapping, Sequence
+from collections.abc import Mapping, Sequence
 from importlib.metadata import version as get_version
 from typing import Any, TypedDict, cast

@@ -17,8 +17,6 @@ from langgraph.checkpoint.base import (
    writes_sort_key,
 )
 from langgraph.checkpoint.serde.types import TASKS
-from psycopg import AsyncCursor, Cursor
-from psycopg.rows import DictRow
 from psycopg.types.json import Jsonb

 # Page size for stage-1 paged scan in `get_delta_channel_history`. Internal
@@ -162,218 +160,6 @@ INSERT_CHECKPOINT_WRITES_SQL = """
 """


-PRUNE_STRATEGIES = ("keep_latest", "delete")
-
-PRUNE_DELETE_THREADS_SQL = (
-    "DELETE FROM checkpoints WHERE thread_id = ANY(%s)",
-    "DELETE FROM checkpoint_blobs WHERE thread_id = ANY(%s)",
-    "DELETE FROM checkpoint_writes WHERE thread_id = ANY(%s)",
-)
-
-# The prune statements below never join two sets of a thread's rows: a join is
-# planned from per-thread row estimates, which are worst for the few huge
-# threads worth pruning, and can go quadratic. They look rows up by primary key
-# instead (`LATERAL ... LIMIT 1`, `= ANY`).
-
-# A `DeltaChannel` leaves update counters in checkpoint metadata, or a
-# snapshot: an inline `true` marker with a blob behind it, which a plain `True`
-# value never has. LangGraph.js inlines no values, but marks the threads its
-# DeltaChannel graphs start with `delta_writes_versioned`.
-PRUNE_DELTA_THREADS_SQL = """
-SELECT thread_id FROM checkpoints
-WHERE thread_id = ANY(%s) AND (
-    metadata ? 'counters_since_delta_snapshot'
-    OR metadata ? 'delta_writes_versioned'
-)
-UNION
-SELECT c.thread_id
-FROM checkpoints c
-CROSS JOIN LATERAL jsonb_each(c.checkpoint -> 'channel_values') AS v
-CROSS JOIN LATERAL (
-    SELECT 1 FROM checkpoint_blobs b
-    WHERE b.thread_id = c.thread_id
-    AND b.checkpoint_ns = c.checkpoint_ns
-    AND b.channel = v.key
-    AND b.version = c.checkpoint -> 'channel_versions' ->> v.key
-    LIMIT 1
-) AS snapshot
-WHERE c.thread_id = ANY(%s) AND v.value = 'true'::jsonb
-"""
-
-# Per namespace: the latest checkpoint, the parent it reads its pending sends
-# from when it predates v4, and the root graph's checkpoint its subgraph call
-# started from, with whether that one is saved.
-PRUNE_HEADS_SQL = f"""
-SELECT
-    h.checkpoint_ns,
-    h.checkpoint_id AS head,
-    CASE WHEN (c.checkpoint ->> 'v')::int < 4 AND EXISTS (
-        SELECT 1 FROM checkpoint_writes w
-        WHERE w.thread_id = %s
-        AND w.checkpoint_ns = h.checkpoint_ns
-        AND w.checkpoint_id = c.parent_checkpoint_id
-        AND w.channel = '{TASKS}'
-    ) THEN c.parent_checkpoint_id END AS sends_parent,
-    c.metadata -> 'parents' ->> '' AS root,
-    EXISTS (
-        SELECT 1 FROM checkpoints r
-        WHERE r.thread_id = %s AND r.checkpoint_ns = ''
-        AND r.checkpoint_id = c.metadata -> 'parents' ->> ''
-    ) AS root_saved
-FROM (
-    SELECT DISTINCT ON (checkpoint_ns) checkpoint_ns, checkpoint_id
-    FROM checkpoints
-    WHERE thread_id = %s
-    ORDER BY checkpoint_ns DESC, checkpoint_id DESC
-) AS h
-CROSS JOIN LATERAL (
-    SELECT checkpoint, parent_checkpoint_id, metadata FROM checkpoints
-    WHERE thread_id = %s
-    AND checkpoint_ns = h.checkpoint_ns
-    AND checkpoint_id = h.checkpoint_id
-) AS c
-"""
-
-PRUNE_SNAPSHOT_SQL = "SET TRANSACTION ISOLATION LEVEL REPEATABLE READ"
-
-PRUNE_UNKEPT_SQL = """
-SELECT checkpoint_id FROM checkpoints
-WHERE thread_id = %s AND checkpoint_ns = %s AND checkpoint_id <> ALL(%s)
-"""
-
-# A run saves a superstep's writes in the background, where they can commit
-# before their checkpoint does, so they go by the checkpoints deleted.
-PRUNE_WRITES_SQL = """
-DELETE FROM checkpoint_writes
-WHERE thread_id = %s AND checkpoint_ns = %s AND checkpoint_id = ANY(%s)
-"""
-
-PRUNE_CHECKPOINTS_SQL = """
-WITH deleted AS (
-    DELETE FROM checkpoints
-    WHERE thread_id = %s AND checkpoint_ns = %s AND checkpoint_id <> ALL(%s)
-    RETURNING checkpoint -> 'channel_versions' AS versions
-)
-SELECT DISTINCT v.key AS channel, v.value AS version
-FROM deleted
-CROSS JOIN LATERAL jsonb_each_text(deleted.versions) AS v
-"""
-
-PRUNE_PARENTS_SQL = """
-UPDATE checkpoints SET parent_checkpoint_id = NULL
-WHERE thread_id = %s AND checkpoint_ns = %s
-AND checkpoint_id = ANY(%s) AND parent_checkpoint_id <> ALL(%s)
-"""
-
-PRUNE_REFERENCED_BLOBS_SQL = """
-SELECT DISTINCT v.key AS channel, v.value AS version
-FROM checkpoints c
-CROSS JOIN LATERAL jsonb_each_text(c.checkpoint -> 'channel_versions') AS v
-WHERE c.thread_id = %s AND c.checkpoint_ns = %s
-"""
-
-PRUNE_BLOBS_SQL = """
-DELETE FROM checkpoint_blobs
-WHERE thread_id = %s AND checkpoint_ns = %s AND channel = %s AND version = ANY(%s)
-"""
-
-PRUNE_SUBGRAPH_CALLS_SQL = (
-    "DELETE FROM checkpoints WHERE thread_id = %s AND checkpoint_ns = ANY(%s)",
-    "DELETE FROM checkpoint_writes WHERE thread_id = %s AND checkpoint_ns = ANY(%s)",
-    "DELETE FROM checkpoint_blobs WHERE thread_id = %s AND checkpoint_ns = ANY(%s)",
-)
-
-
-def _garbage_blobs(
-    freed: Sequence[Mapping[str, Any]], referenced: Sequence[Mapping[str, Any]]
-) -> dict[str, list[str]]:
-    """Blobs a deleted checkpoint used and no kept one does, by channel."""
-    kept = {(r["channel"], r["version"]) for r in referenced}
-    garbage: dict[str, list[str]] = {}
-    for r in freed:
-        if (r["channel"], r["version"]) not in kept:
-            garbage.setdefault(r["channel"], []).append(r["version"])
-    return garbage
-
-
-_Statements = Generator[tuple[str, Sequence[Any], bool], list[DictRow], None]
-
-
-def _refuse_delta_threads(thread_ids: Sequence[str]) -> _Statements:
-    rows = yield PRUNE_DELTA_THREADS_SQL, (thread_ids, thread_ids), True
-    if delta := sorted(r["thread_id"] for r in rows):
-        raise NotImplementedError(
-            f"keep_latest can't prune threads that use a DeltaChannel: {', '.join(delta)}"
-        )
-
-
-def _keep_latest(thread_id: str) -> _Statements:
-    """The statements of one thread's keep_latest transaction, for `_execute`
-    and `_aexecute` to run. Each comes with whether its rows are sent back.
-
-    They all read one snapshot, so what a run saves meanwhile is neither seen
-    nor deleted, whatever its checkpoint ID.
-    """
-    yield PRUNE_SNAPSHOT_SQL, (), False
-    heads = yield PRUNE_HEADS_SQL, (thread_id,) * 4, True
-    # Catches a thread that started using a DeltaChannel after the batch check.
-    yield from _refuse_delta_threads([thread_id])
-    kept = {
-        h["checkpoint_ns"]: [i for i in (h["head"], h["sends_parent"]) if i]
-        for h in heads
-    }
-    # A subgraph call's namespace has its task ID after a ":", unlike a
-    # `checkpointer=True` subgraph's, whose state outlives each call. A call
-    # goes with the root checkpoint it started from, but only once that one is
-    # saved: runs save in the background, so a call can commit first.
-    calls = {
-        h["checkpoint_ns"]
-        for h in heads
-        if ":" in h["checkpoint_ns"]
-        and h["root_saved"]
-        and h["root"] not in kept.get("", ())
-    }
-    if calls:
-        for sql in PRUNE_SUBGRAPH_CALLS_SQL:
-            yield sql, (thread_id, list(calls)), False
-    for ns, ids in kept.items():
-        if ns in calls:
-            continue
-        unkept = yield PRUNE_UNKEPT_SQL, (thread_id, ns, ids), True
-        if unkept:
-            deleted = [r["checkpoint_id"] for r in unkept]
-            yield PRUNE_WRITES_SQL, (thread_id, ns, deleted), False
-        freed = yield PRUNE_CHECKPOINTS_SQL, (thread_id, ns, ids), True
-        yield PRUNE_PARENTS_SQL, (thread_id, ns, ids, ids), False
-        if freed:
-            referenced = yield PRUNE_REFERENCED_BLOBS_SQL, (thread_id, ns), True
-            for channel, versions in _garbage_blobs(freed, referenced).items():
-                yield PRUNE_BLOBS_SQL, (thread_id, ns, channel, versions), False
-
-
-# Unprepared, so Postgres plans each statement knowing its arrays: a cached
-# generic plan checks a row against an `= ANY(...)` array one element at a time.
-def _execute(cur: Cursor[DictRow], statements: _Statements) -> None:
-    try:
-        sql, params, fetch = next(statements)
-        while True:
-            cur.execute(sql, params, prepare=False)
-            sql, params, fetch = statements.send(cur.fetchall() if fetch else [])
-    except StopIteration:
-        pass
-
-
-async def _aexecute(cur: AsyncCursor[DictRow], statements: _Statements) -> None:
-    try:
-        sql, params, fetch = next(statements)
-        while True:
-            await cur.execute(sql, params, prepare=False)
-            rows = await cur.fetchall() if fetch else []
-            sql, params, fetch = statements.send(rows)
-    except StopIteration:
-        pass
-
-
 class _DeltaStage2Row(TypedDict, total=False):
    """One row from `_build_delta_stage2_sql` (a UNION ALL of writes and blobs)."""

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"

 [project]
 name = "langgraph-checkpoint-postgres"
-version = "3.2.0"
+version = "3.1.3"
 description = "Library with a Postgres implementation of LangGraph checkpoint saver."
 authors = []
 requires-python = ">=3.10"
@@ -1,540 +0,0 @@
-import asyncio
-from collections.abc import Awaitable, Callable
-from contextlib import asynccontextmanager
-from typing import Any
-from uuid import uuid4
-
-import pytest
-from langgraph.checkpoint.base import empty_checkpoint
-from langgraph.checkpoint.base.id import uuid6
-from langgraph.checkpoint.conformance import validate
-from langgraph.checkpoint.conformance.initializer import checkpointer_test
-from langgraph.checkpoint.serde.types import TASKS, _DeltaSnapshot
-from psycopg import AsyncConnection
-
-from langgraph.checkpoint.postgres.aio import AsyncPostgresSaver
-from langgraph.checkpoint.postgres.base import (
-    PRUNE_DELTA_THREADS_SQL,
-    PRUNE_HEADS_SQL,
-    PRUNE_REFERENCED_BLOBS_SQL,
-)
-from tests.conftest import DEFAULT_POSTGRES_URI, DEFAULT_URI
-from tests.test_async import _saver as _async_saver
-from tests.test_sync import _saver as _sync_saver
-
-SAVERS = ["base", "pool", "pipe", "aio_base", "aio_pool", "aio_pipe"]
-
-
-@asynccontextmanager
-async def _saver(name: str):
-    if name.startswith("aio_"):
-        async with _async_saver(name.removeprefix("aio_")) as saver:
-            yield saver
-    else:
-        with _sync_saver(name) as saver:
-            yield saver
-
-
-async def _call(saver: Any, method: str, *args: Any, **kwargs: Any) -> Any:
-    if isinstance(saver, AsyncPostgresSaver):
-        return await getattr(saver, f"a{method}")(*args, **kwargs)
-    return getattr(saver, method)(*args, **kwargs)
-
-
-async def _rows(saver: Any, thread_id: str) -> dict[str, list[tuple]]:
-    queries = {
-        "checkpoints": "SELECT checkpoint_ns, checkpoint_id FROM checkpoints"
-        " WHERE thread_id = %s ORDER BY 1, 2",
-        "writes": "SELECT checkpoint_ns, checkpoint_id, task_id, idx"
-        " FROM checkpoint_writes WHERE thread_id = %s ORDER BY 1, 2, 3, 4",
-        "blobs": "SELECT checkpoint_ns, channel, version FROM checkpoint_blobs"
-        " WHERE thread_id = %s ORDER BY 1, 2, 3",
-    }
-    rows = {}
-    for table, sql in queries.items():
-        if isinstance(saver, AsyncPostgresSaver):
-            async with saver._cursor() as cur:
-                await cur.execute(sql, (thread_id,))
-                rows[table] = [tuple(r.values()) for r in await cur.fetchall()]
-        else:
-            with saver._cursor() as cur:
-                cur.execute(sql, (thread_id,))
-                rows[table] = [tuple(r.values()) for r in cur.fetchall()]
-    return rows
-
-
-async def _put(
-    saver: Any,
-    thread_id: str,
-    parent: dict | None,
-    step: int,
-    values: dict[str, Any],
-    versions: dict[str, str],
-    *,
-    ns: str = "",
-    metadata: dict[str, Any] | None = None,
-    v: int = 4,
-    checkpoint_id: str | None = None,
-) -> dict:
-    config = {"configurable": {"thread_id": thread_id, "checkpoint_ns": ns}}
-    if parent is not None:
-        config["configurable"]["checkpoint_id"] = parent["configurable"][
-            "checkpoint_id"
-        ]
-    checkpoint = empty_checkpoint()
-    checkpoint.update(
-        v=v,
-        id=checkpoint_id or str(uuid6(clock_seq=step)),
-        channel_values=values,
-        channel_versions=versions,
-    )
-    new_versions = {k: versions[k] for k in values}
-    return await _call(
-        saver,
-        "put",
-        config,
-        checkpoint,
-        {"source": "loop", "step": step, "parents": {}, **(metadata or {})},
-        new_versions,
-    )
-
-
-async def _three_checkpoints(
-    saver: Any,
-    thread_id: str,
-    ns: str = "",
-    metadata: dict[str, Any] | None = None,
-) -> dict:
-    parent = None
-    steps = [
-        ({"a": [1], "s": ["shared"]}, {"a": "1", "s": "1"}),
-        ({"a": [1, 2]}, {"a": "2", "s": "1"}),
-        ({"a": [1, 2, 3]}, {"a": "3", "s": "1"}),
-    ]
-    for step, (values, versions) in enumerate(steps):
-        parent = await _put(
-            saver, thread_id, parent, step, values, versions, ns=ns, metadata=metadata
-        )
-        await _call(saver, "put_writes", parent, [("a", step)], str(uuid4()))
-    return parent
-
-
-@asynccontextmanager
-async def _second_saver(saver: AsyncPostgresSaver):
-    assert isinstance(saver.conn, AsyncConnection)
-    uri = DEFAULT_POSTGRES_URI + saver.conn.info.dbname
-    async with AsyncPostgresSaver.from_conn_string(uri) as other:
-        yield other
-
-
-def _run_once_after(
-    saver: AsyncPostgresSaver,
-    sql: str,
-    action: Callable[[], Awaitable[Any]],
-    *,
-    nth: int = 1,
-) -> None:
-    seen = 0
-    cursor = saver._cursor
-
-    class Hooked:
-        def __init__(self, cur: Any) -> None:
-            self.cur = cur
-
-        def __getattr__(self, name: str) -> Any:
-            return getattr(self.cur, name)
-
-        async def execute(self, query: Any, params: Any = None, **kwargs: Any) -> None:
-            nonlocal seen
-            await self.cur.execute(query, params, **kwargs)
-            if query is sql:
-                seen += 1
-                if seen == nth:
-                    await action()
-
-    @asynccontextmanager
-    async def hooked(**kwargs: Any):
-        async with cursor(**kwargs) as cur:
-            yield Hooked(cur)
-
-    saver._cursor = hooked
-
-
-async def _delta_thread(saver: Any, thread_id: str, evidence: str) -> None:
-    if evidence == "counters":
-        first = await _put(saver, thread_id, None, 0, {"m": [1]}, {"m": "1"})
-        await _put(
-            saver,
-            thread_id,
-            first,
-            1,
-            {},
-            {"m": "2"},
-            metadata={"counters_since_delta_snapshot": {"m": [1, 1]}},
-        )
-    elif evidence == "snapshot":
-        first = await _put(
-            saver, thread_id, None, 0, {"m": _DeltaSnapshot([1])}, {"m": "1"}
-        )
-        await _put(saver, thread_id, first, 1, {}, {"m": "2"})
-    else:
-        marker = {"delta_writes_versioned": True}
-        first = await _put(
-            saver, thread_id, None, 0, {"m": [1]}, {"m": "1"}, metadata=marker
-        )
-        await _put(
-            saver, thread_id, first, 1, {"m": [1, 2]}, {"m": "2"}, metadata=marker
-        )
-
-
-@pytest.mark.parametrize("name", SAVERS)
-async def test_keep_latest_keeps_each_namespace_head_with_its_writes_and_blobs(
-    name: str,
-) -> None:
-    async with _saver(name) as saver:
-        thread_id, other_id = str(uuid4()), str(uuid4())
-        heads = {
-            ns: await _three_checkpoints(saver, thread_id, ns) for ns in ("", "sub:1")
-        }
-        await _three_checkpoints(saver, other_id)
-        before = {ns: await _call(saver, "get_tuple", h) for ns, h in heads.items()}
-        other_before = await _rows(saver, other_id)
-
-        await _call(saver, "prune", [thread_id])
-
-        rows = await _rows(saver, thread_id)
-        assert rows["checkpoints"] == [
-            (ns, heads[ns]["configurable"]["checkpoint_id"]) for ns in ("", "sub:1")
-        ]
-        assert [(ns, cid) for ns, cid, *_ in rows["writes"]] == rows["checkpoints"]
-        assert rows["blobs"] == [
-            (ns, ch, ver)
-            for ns in ("", "sub:1")
-            for ch, ver in (("a", "3"), ("s", "1"))
-        ]
-        for ns, head in heads.items():
-            assert await _call(saver, "get_tuple", head) == before[ns]._replace(
-                parent_config=None
-            )
-        assert await _rows(saver, other_id) == other_before
-
-
-@pytest.mark.parametrize("evidence", ["counters", "snapshot", "versioned"])
-@pytest.mark.parametrize("name", SAVERS)
-async def test_keep_latest_refuses_a_batch_with_a_delta_channel_thread(
-    name: str, evidence: str
-) -> None:
-    async with _saver(name) as saver:
-        ordinary_id, delta_id = str(uuid4()), str(uuid4())
-        await _three_checkpoints(saver, ordinary_id)
-        await _delta_thread(saver, delta_id, evidence)
-        before = [await _rows(saver, t) for t in (ordinary_id, delta_id)]
-
-        with pytest.raises(NotImplementedError, match=delta_id):
-            await _call(saver, "prune", [ordinary_id, delta_id])
-
-        assert [await _rows(saver, t) for t in (ordinary_id, delta_id)] == before
-
-
-@pytest.mark.parametrize("name", SAVERS)
-async def test_keep_latest_prunes_a_thread_storing_a_plain_true(name: str) -> None:
-    async with _saver(name) as saver:
-        thread_id = str(uuid4())
-        first = await _put(
-            saver, thread_id, None, 0, {"flag": True, "a": [1]}, {"flag": "1", "a": "1"}
-        )
-        head = await _put(
-            saver, thread_id, first, 1, {"flag": True}, {"flag": "2", "a": "1"}
-        )
-
-        await _call(saver, "prune", [thread_id])
-
-        assert (await _rows(saver, thread_id))["checkpoints"] == [
-            ("", head["configurable"]["checkpoint_id"])
-        ]
-
-
-@pytest.mark.parametrize("name", SAVERS)
-async def test_keep_latest_keeps_the_parent_holding_a_pre_v4_heads_sends(
-    name: str,
-) -> None:
-    async with _saver(name) as saver:
-        thread_id = str(uuid4())
-        first = await _put(saver, thread_id, None, 0, {}, {}, v=1)
-        await _call(saver, "put_writes", first, [(TASKS, "send-1")], str(uuid4()))
-        second = await _put(saver, thread_id, first, 1, {}, {}, v=1)
-        head = await _put(saver, thread_id, second, 2, {}, {}, v=1)
-        await _call(saver, "put_writes", second, [(TASKS, "send-2")], str(uuid4()))
-
-        await _call(saver, "prune", [thread_id])
-
-        assert (await _rows(saver, thread_id))["checkpoints"] == [
-            ("", second["configurable"]["checkpoint_id"]),
-            ("", head["configurable"]["checkpoint_id"]),
-        ]
-        loaded = await _call(saver, "get_tuple", head)
-        assert loaded.checkpoint["channel_values"][TASKS] == ["send-2"]
-        assert loaded.parent_config == second
-        assert (await _call(saver, "get_tuple", second)).parent_config is None
-
-
-@pytest.mark.parametrize("name", SAVERS)
-async def test_delete_removes_every_row_of_the_threads(name: str) -> None:
-    async with _saver(name) as saver:
-        ordinary_id, delta_id, other_id = str(uuid4()), str(uuid4()), str(uuid4())
-        await _three_checkpoints(saver, ordinary_id)
-        await _delta_thread(saver, delta_id, "counters")
-        await _three_checkpoints(saver, other_id)
-        other_before = await _rows(saver, other_id)
-
-        await _call(saver, "prune", [ordinary_id, delta_id], strategy="delete")
-
-        empty = {"checkpoints": [], "writes": [], "blobs": []}
-        assert await _rows(saver, ordinary_id) == empty
-        assert await _rows(saver, delta_id) == empty
-        assert await _rows(saver, other_id) == other_before
-
-
-@pytest.mark.parametrize("name", SAVERS)
-async def test_unknown_strategy_changes_nothing(name: str) -> None:
-    async with _saver(name) as saver:
-        thread_id = str(uuid4())
-        await _three_checkpoints(saver, thread_id)
-        before = await _rows(saver, thread_id)
-
-        with pytest.raises(ValueError, match="keep_all"):
-            await _call(saver, "prune", [thread_id], strategy="keep_all")
-
-        assert await _rows(saver, thread_id) == before
-
-
-async def test_async_saver_prune_runs_from_another_thread_only() -> None:
-    async with _saver("aio_base") as saver:
-        thread_id = str(uuid4())
-        head = await _three_checkpoints(saver, thread_id)
-
-        with pytest.raises(asyncio.InvalidStateError):
-            saver.prune([thread_id])
-        await asyncio.to_thread(saver.prune, [thread_id])
-
-        assert (await _rows(saver, thread_id))["checkpoints"] == [
-            ("", head["configurable"]["checkpoint_id"])
-        ]
-
-
-async def test_prune_conformance() -> None:
-    @checkpointer_test(name="AsyncPostgresSaver")
-    async def postgres_saver():
-        async with AsyncPostgresSaver.from_conn_string(DEFAULT_URI) as saver:
-            await saver.setup()
-            yield saver
-
-    report = await validate(postgres_saver, capabilities={"prune"})
-
-    prune = report.results["prune"]
-    if not prune.passed:
-        details = "\n".join(prune.failures)
-        pytest.fail(f"Capability prune failed (passed={prune.passed}):\n{details}")
-
-
-@pytest.mark.parametrize("strategy", ["keep_latest", "delete"])
-@pytest.mark.parametrize("name", ["base", "aio_base"])
-async def test_prune_rejects_a_single_thread_id_string(
-    name: str, strategy: str
-) -> None:
-    async with _saver(name) as saver:
-        for thread_id in ("ab", "a", "b"):
-            await _three_checkpoints(saver, thread_id)
-        before = [await _rows(saver, t) for t in ("ab", "a", "b")]
-
-        with pytest.raises(TypeError, match="not a str"):
-            await _call(saver, "prune", "ab", strategy=strategy)
-
-        assert [await _rows(saver, t) for t in ("ab", "a", "b")] == before
-
-
-@pytest.mark.parametrize(
-    "after", [PRUNE_HEADS_SQL, PRUNE_REFERENCED_BLOBS_SQL], ids=["heads", "blobs"]
-)
-async def test_keep_latest_keeps_a_checkpoint_saved_while_it_runs(after: str) -> None:
-    async with _saver("aio_base") as saver, _second_saver(saver) as other:
-        thread_id = str(uuid4())
-        head = await _three_checkpoints(saver, thread_id)
-        saved: list[dict] = []
-
-        async def save_a_child() -> None:
-            saved.append(
-                await _put(
-                    other, thread_id, head, 3, {"a": [1, 2, 3, 4]}, {"a": "4", "s": "1"}
-                )
-            )
-
-        _run_once_after(saver, after, save_a_child)
-        await saver.aprune([thread_id])
-
-        loaded = await saver.aget_tuple(saved[0])
-        assert loaded is not None, "the checkpoint saved during the prune was deleted"
-        assert loaded.checkpoint["channel_values"] == {
-            "a": [1, 2, 3, 4],
-            "s": ["shared"],
-        }
-        assert loaded.parent_config == head
-
-
-async def test_keep_latest_refuses_a_thread_that_turns_delta_after_the_batch_check() -> (
-    None
-):
-    async with _saver("aio_base") as saver, _second_saver(saver) as other:
-        thread_id = str(uuid4())
-        head = await _three_checkpoints(saver, thread_id)
-
-        async def save_a_delta_checkpoint() -> None:
-            await _put(
-                other,
-                thread_id,
-                head,
-                3,
-                {},
-                {"a": "4", "s": "1"},
-                metadata={"counters_since_delta_snapshot": {"a": [1, 1]}},
-            )
-
-        _run_once_after(saver, PRUNE_DELTA_THREADS_SQL, save_a_delta_checkpoint)
-        with pytest.raises(NotImplementedError, match=thread_id):
-            await saver.aprune([thread_id])
-
-        assert len((await _rows(saver, thread_id))["checkpoints"]) == 4
-
-
-async def test_keep_latest_keeps_the_history_of_a_delta_checkpoint_saved_after_the_thread_check() -> (
-    None
-):
-    async with _saver("aio_base") as saver, _second_saver(saver) as other:
-        thread_id = str(uuid4())
-        head = await _three_checkpoints(saver, thread_id)
-        saved: list[dict] = []
-
-        async def save_a_delta_checkpoint() -> None:
-            saved.append(
-                await _put(
-                    other,
-                    thread_id,
-                    head,
-                    3,
-                    {},
-                    {"a": "4", "s": "1"},
-                    metadata={"counters_since_delta_snapshot": {"a": [1, 1]}},
-                )
-            )
-
-        _run_once_after(saver, PRUNE_DELTA_THREADS_SQL, save_a_delta_checkpoint, nth=2)
-        await saver.aprune([thread_id])
-
-        assert (await _rows(saver, thread_id))["checkpoints"] == [
-            ("", head["configurable"]["checkpoint_id"]),
-            ("", saved[0]["configurable"]["checkpoint_id"]),
-        ]
-        history = await saver.aget_delta_channel_history(
-            config=saved[0], channels=["a"]
-        )
-        assert history["a"]["seed"] == [1, 2, 3]
-        assert [value for _, _, value in history["a"]["writes"]] == [2]
-
-
-@pytest.mark.parametrize("name", SAVERS)
-async def test_keep_latest_deletes_a_subgraph_call_with_the_checkpoint_it_started_from(
-    name: str,
-) -> None:
-    async with _saver(name) as saver:
-        thread_id = str(uuid4())
-        older = await _put(saver, thread_id, None, 0, {}, {})
-        head = await _put(saver, thread_id, older, 1, {}, {})
-        unsaved = str(uuid6(clock_seq=2))
-        started_from = {
-            "finished:1": older["configurable"]["checkpoint_id"],
-            "interrupted:2": head["configurable"]["checkpoint_id"],
-            "running:3": unsaved,
-            "checkpointer_true": older["configurable"]["checkpoint_id"],
-        }
-        for ns, root in started_from.items():
-            await _three_checkpoints(
-                saver, thread_id, ns, metadata={"parents": {"": root}}
-            )
-
-        await _call(saver, "prune", [thread_id])
-
-        rows = await _rows(saver, thread_id)
-        assert {ns for ns, *_ in rows["checkpoints"]} == {
-            "",
-            "interrupted:2",
-            "running:3",
-            "checkpointer_true",
-        }
-        assert {ns for ns, *_ in rows["writes"]} == {
-            "interrupted:2",
-            "running:3",
-            "checkpointer_true",
-        }
-        assert {ns for ns, *_ in rows["blobs"]} == {
-            "interrupted:2",
-            "running:3",
-            "checkpointer_true",
-        }
-
-
-async def test_keep_latest_keeps_a_checkpoint_saved_meanwhile_whatever_its_id() -> None:
-    async with _saver("aio_base") as saver, _second_saver(saver) as other:
-        thread_id = str(uuid4())
-        head = await _three_checkpoints(saver, thread_id)
-        lower_id = "0" + head["configurable"]["checkpoint_id"][1:]
-        saved: list[dict] = []
-
-        async def save_a_child_with_a_lower_id() -> None:
-            child = await _put(
-                other,
-                thread_id,
-                head,
-                3,
-                {"a": [1, 2, 3, 4]},
-                {"a": "4", "s": "1"},
-                checkpoint_id=lower_id,
-            )
-            await _call(other, "put_writes", child, [("a", 4)], str(uuid4()))
-            saved.append(child)
-
-        _run_once_after(saver, PRUNE_HEADS_SQL, save_a_child_with_a_lower_id)
-        await saver.aprune([thread_id])
-
-        loaded = await saver.aget_tuple(saved[0])
-        assert loaded is not None, "the checkpoint saved during the prune was deleted"
-        assert loaded.checkpoint["channel_values"] == {
-            "a": [1, 2, 3, 4],
-            "s": ["shared"],
-        }
-        assert [value for _, _, value in loaded.pending_writes or []] == [4]
-
-
-@pytest.mark.parametrize("name", SAVERS)
-async def test_keep_latest_keeps_writes_saved_before_their_checkpoint(
-    name: str,
-) -> None:
-    async with _saver(name) as saver:
-        thread_id = str(uuid4())
-        head = await _three_checkpoints(saver, thread_id)
-        next_id = str(uuid6(clock_seq=3))
-        next_config = {
-            "configurable": {
-                "thread_id": thread_id,
-                "checkpoint_ns": "",
-                "checkpoint_id": next_id,
-            }
-        }
-        await _call(saver, "put_writes", next_config, [("a", 4)], str(uuid4()))
-
-        await _call(saver, "prune", [thread_id])
-        await _put(
-            saver, thread_id, head, 3, {}, {"a": "3", "s": "1"}, checkpoint_id=next_id
-        )
-
-        loaded = await _call(saver, "get_tuple", next_config)
-        assert [value for _, _, value in loaded.pending_writes] == [4]
@@ -40,11 +40,11 @@ wheels = [

 [[package]]
 name = "certifi"
-version = "2026.10.19"
+version = "2026.1.4"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/a6/bd/1436c50cc46699de0230fbaacc1d1de7bfec413176099949e9d5112e88f2/certifi-2026.10.19.tar.gz", hash = "sha256:035c1e85572b141bf1c3a3eff0e33a8eb74917522f2559075ff8d2fea780a1ae", size = 137598, upload-time = "2026-10-20T02:24:16.604Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/e0/2d/a891ca51311197f6ad14a7ef42e2399f36cf2f9bd44752b3dc4eab60fdc5/certifi-2026.1.4.tar.gz", hash = "sha256:ac726dd470482006e014ad384921ed6438c457018f4b3d204aea4281258b2120", size = 154268, upload-time = "2026-01-04T02:42:41.825Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/c4/51/29046e48f693c54e5b7412216d447a1d8362c9653148d98c02cdf65fa733/certifi-2026.10.19-py3-none-any.whl", hash = "sha256:42d35340cc5b9ba78e818ddbff0c5b1c2b779de448a340fd1b989f5fa8670e1b", size = 136464, upload-time = "2026-10-20T02:24:15.072Z" },
+    { url = "https://files.pythonhosted.org/packages/e6/ad/3cc14f097111b4de0040c83a525973216457bbeeb63739ef1ed275c1c021/certifi-2026.1.4-py3-none-any.whl", hash = "sha256:9943707519e4add1115f44c2bc244f782c0249876bf51b6599fee1ffbedd685c", size = 152900, upload-time = "2026-01-04T02:42:40.15Z" },
 ]

 [[package]]
@@ -278,7 +278,7 @@ wheels = [

 [[package]]
 name = "langgraph-checkpoint"
-version = "4.3.1"
+version = "4.3.0"
 source = { editable = "../checkpoint" }
 dependencies = [
    { name = "langchain-core" },
@@ -353,7 +353,7 @@ test = [

 [[package]]
 name = "langgraph-checkpoint-postgres"
-version = "3.2.0"
+version = "3.1.3"
 source = { editable = "." }
 dependencies = [
    { name = "langgraph-checkpoint" },
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"

 [project]
 name = "langgraph-checkpoint-sqlite"
-version = "3.1.3"
+version = "3.1.2"
 description = "Library with a SQLite implementation of LangGraph checkpoint saver."
 authors = []
 requires-python = ">=3.10"
@@ -12,7 +12,7 @@ readme = "README.md"
 license = "MIT"
 license-files = ['LICENSE']
 dependencies = [
-    "langgraph-checkpoint>=4.3.1,<5.0.0",
+    "langgraph-checkpoint>=4.3.0,<5.0.0",
    "aiosqlite>=0.20",
    "sqlite-vec>=0.1.6",
 ]
@@ -1364,17 +1364,6 @@ def test_search_empty_prefix_is_unconstrained(store: SqliteStore) -> None:
    }


-@pytest.mark.parametrize("batched", [False, True])
-def test_search_rejects_nul_namespace_prefix(store: SqliteStore, batched: bool) -> None:
-    store.put(("a",), "key", {"v": 1})
-
-    with pytest.raises(InvalidNamespaceError, match="NUL"):
-        if batched:
-            store.batch([SearchOp(("a\x00",))])
-        else:
-            store.search(("a\x00",))
-
-
 def test_namespace_labels_with_trailing_newline(store: SqliteStore) -> None:
    """Labels may contain newlines, and must not match a differently-named label.

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 [[package]]
@@ -285,7 +285,7 @@ wheels = [

 [[package]]
 name = "langgraph-checkpoint"
-version = "4.3.1"
+version = "4.3.0"
 source = { editable = "../checkpoint" }
 dependencies = [
    { name = "langchain-core" },
@@ -360,7 +360,7 @@ test = [

 [[package]]
 name = "langgraph-checkpoint-sqlite"
-version = "3.1.3"
+version = "3.1.2"
 source = { editable = "." }
 dependencies = [
    { name = "aiosqlite" },
@@ -1333,10 +1333,6 @@ def _validate_namespace_labels(namespace: tuple[str, ...]) -> None:
            raise InvalidNamespaceError(
                f"Invalid namespace label '{label}' found in {namespace}. Namespace labels cannot contain periods ('.')."
            )
-        elif "\x00" in label:
-            raise InvalidNamespaceError(
-                f"Invalid namespace label '{label}' found in {namespace}. Namespace labels cannot contain NUL bytes ('\\x00')."
-            )
        elif not label:
            raise InvalidNamespaceError(
                f"Namespace labels cannot be empty strings. Got {label} in {namespace}"
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"

 [project]
 name = "langgraph-checkpoint"
-version = "4.3.1"
+version = "4.3.0"
 description = "Library with base interfaces for LangGraph checkpoint savers."
 authors = []
 requires-python = ">=3.10"
@@ -532,7 +532,7 @@ async def test_cannot_put_empty_namespace() -> None:
    assert (await async_store.aget(("valid", "namespace"), "key")) is None


-INVALID_NAMESPACES = [("foo.bar",), ("foo\x00",), ("foo", ""), (123,)]
+INVALID_NAMESPACES = [("foo.bar",), ("foo", ""), (123,)]
 NAMESPACE_METHODS = ["get", "delete", "search", "prefix", "suffix"]


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-revision = 5
+revision = 3
 requires-python = ">=3.10"
 resolution-markers = [
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 ]

 [[package]]
@@ -5,5 +5,5 @@ description = "Test for prerelease stuff"
 readme = "README.md"
 requires-python = ">=3.10"
 dependencies = [
-  "langgraph==1.2.19"
+  "langgraph==1.2.6"
 ]
@@ -7,7 +7,7 @@ requires-python = ">=3.10"
 dependencies = [
  "langchain-openai==1.1.14",
  "langchain-anthropic==1.4.6",
-  "langgraph==1.2.19"
+  "langgraph==1.2.6"
 ]

 [tool.uv]
@@ -23,7 +23,6 @@ from langgraph_cli.schemas import (
    GraphDef,
    HttpConfig,
    IndexConfig,
-    PriorityConfig,
    SecurityConfig,
    SerdeConfig,
    StoreConfig,
@@ -114,7 +113,6 @@ def add_descriptions_to_schema(schema, cls):
                StoreConfig,
                IndexConfig,
                AuthConfig,
-                PriorityConfig,
                SecurityConfig,
                HttpConfig,
                CorsConfig,
@@ -21,8 +21,8 @@
    "test:all": "yarn test && yarn test:int && yarn lint:langgraph"
  },
  "dependencies": {
-    "@langchain/core": "^1.3.1",
-    "@langchain/langgraph": "^1.5.3"
+    "@langchain/core": "^1.2.9",
+    "@langchain/langgraph": "^1.4.13"
  },
  "resolutions": {
    "@langchain/langgraph-checkpoint": "1.0.4",
@@ -30,21 +30,21 @@
    "@eslint/eslintrc/js-yaml": "4.3.2"
  },
  "devDependencies": {
-    "@eslint/eslintrc": "^3.3.7",
+    "@eslint/eslintrc": "^3.3.6",
    "@eslint/js": "^10.0.1",
    "@tsconfig/recommended": "^1.0.13",
    "@types/jest": "^30.0.0",
-    "@typescript-eslint/eslint-plugin": "^8.72.1",
-    "@typescript-eslint/parser": "^8.72.1",
-    "dotenv": "^18.0.9",
-    "eslint": "^10.13.0",
+    "@typescript-eslint/eslint-plugin": "^8.68.0",
+    "@typescript-eslint/parser": "^8.68.0",
+    "dotenv": "^17.4.2",
+    "eslint": "^10.9.1",
    "eslint-config-prettier": "^10.1.8",
    "eslint-plugin-import": "^2.32.0",
    "eslint-plugin-no-instanceof": "^1.0.1",
-    "eslint-plugin-prettier": "^5.5.7",
-    "jest": "^30.5.2",
-    "prettier": "^3.9.10",
-    "ts-jest": "^29.4.15",
+    "eslint-plugin-prettier": "^5.5.6",
+    "jest": "^30.5.0",
+    "prettier": "^3.9.6",
+    "ts-jest": "^29.4.12",
    "typescript": "^7.0.2"
  }
 }
@@ -9,8 +9,8 @@
  },
  "dependencies": {
    "@js-monorepo-example/shared": "*",
-    "@langchain/core": "^1.3.1",
-    "@langchain/langgraph": "^1.5.3"
+    "@langchain/core": "^1.2.13",
+    "@langchain/langgraph": "^1.4.18"
  },
  "devDependencies": {
    "typescript": "^7.0.2"
@@ -17,18 +17,18 @@
    "lint": "eslint 'apps/**/*.ts' 'libs/**/*.ts'"
  },
  "devDependencies": {
-    "turbo": "^2.11.10",
+    "turbo": "^2.11.5",
    "typescript": "^7.0.2",
    "@tsconfig/recommended": "^1.0.13",
    "@eslint/eslintrc": "^3.3.7",
    "@eslint/js": "^10.0.1",
-    "eslint": "^10.13.0",
+    "eslint": "^10.11.0",
    "eslint-config-prettier": "^10.1.8",
    "eslint-plugin-import": "^2.27.5",
    "eslint-plugin-no-instanceof": "^1.0.1",
-    "eslint-plugin-prettier": "^5.5.7",
-    "@typescript-eslint/eslint-plugin": "^8.72.1",
-    "@typescript-eslint/parser": "^8.72.1",
-    "prettier": "^3.9.10"
+    "eslint-plugin-prettier": "^5.5.6",
+    "@typescript-eslint/eslint-plugin": "^8.70.1",
+    "@typescript-eslint/parser": "^8.70.1",
+    "prettier": "^3.9.9"
  }
 }
@@ -25,11 +25,6 @@
  resolved "https://registry.yarnpkg.com/@cfworker/json-schema/-/json-schema-4.1.1.tgz#4a2a3947ee9fa7b7c24be981422831b8674c3be6"
  integrity sha512-gAmrUZSGtKc3AiBL71iNWxDsyUC5uMaKKGdvzYsBoTW/xi42JQHl7eKV2OYzCUqvc+D2RCcf7EXY2iCyFIk6og==

-"@dual-bundle/import-meta-resolve@^4.2.1":
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/@dual-bundle/import-meta-resolve/-/import-meta-resolve-4.2.1.tgz#cd0b25b3808cd9e684cd6cd549bbf8e1dcf05ee7"
-  integrity sha512-id+7YRUgoUX6CgV0DtuhirQWodeeA7Lf4i2x71JS/vtA5pRb/hIGWlw+G6MeXvsM+MXrz0VAydTGElX1rAfgPg==
-
 "@eslint-community/eslint-utils@^4.8.0", "@eslint-community/eslint-utils@^4.9.1":
  version "4.9.1"
  resolved "https://registry.yarnpkg.com/@eslint-community/eslint-utils/-/eslint-utils-4.9.1.tgz#4e90af67bc51ddee6cdef5284edf572ec376b595"
@@ -139,48 +134,48 @@
  resolved "https://registry.yarnpkg.com/@keyv/serialize/-/serialize-1.1.1.tgz#0c01dd3a3483882af7cf3878d4e71d505c81fc4a"
  integrity sha512-dXn3FZhPv0US+7dtJsIi2R+c7qWYiReoEh5zUntWCf4oSpMNib8FDhSoed6m3QyZdx5hK7iLFkYk3rNxwt8vTA==

-"@langchain/core@^1.3.1":
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/@langchain/core/-/core-1.3.1.tgz#f6cdb6d200def5c2e69d25ff4fef92612d1b7601"
-  integrity sha512-jt0miXWxNi+rbZLeSeZkc7BBYKnWopksoJSpB+P3zaYgzMMNwkAPWqnd1zSClfYGwLZPXQbbTtaqv8ZFXmE3FA==
+"@langchain/core@^1.2.13":
+  version "1.2.13"
+  resolved "https://registry.yarnpkg.com/@langchain/core/-/core-1.2.13.tgz#4ea4eb0308a25af350f75de2fbf34aecb819177e"
+  integrity sha512-ADGTxZ84n3civruUX1LlTOdua/PDGoni2U6TmKTX7hvRU2Jlepu8vLJI4Wnwj45KUKhUCrW94Il12Q2bxE3e8A==
  dependencies:
    "@cfworker/json-schema" "^4.0.2"
    "@standard-schema/spec" "^1.1.0"
    js-tiktoken "^1.0.12"
-    langsmith ">=0.11.0 <1.0.0"
+    langsmith ">=0.5.0 <1.0.0"
    mustache "^4.2.0"
    p-queue "^6.6.2"
    zod "^3.25.76 || ^4"

-"@langchain/langgraph-checkpoint@^1.2.1":
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/@langchain/langgraph-checkpoint/-/langgraph-checkpoint-1.2.2.tgz#cbfdf0d461385769665e26f70e41f1291ed1d37e"
-  integrity sha512-KL3nzi7I61ll5nANCQe5RoJ5SqTFrE+si9IK6k7IIj9OrPkIKT/Dz0w8CyJF+K7OEuJfA33HvPrZqfzzW1DXDA==
+"@langchain/langgraph-checkpoint@^1.1.5":
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/@langchain/langgraph-checkpoint/-/langgraph-checkpoint-1.1.5.tgz#c793177f9afcce31a1e9922f317f88fec1254282"
+  integrity sha512-BwDwl5VeTOh6CVuiIPgsUgfK51vTJDMSbFcSCUfjJWsl8/DPdK/mbv+ejxJstkSk/BlSPMP4JfXWcN6jD2ea2Q==

-"@langchain/langgraph-sdk@~1.12.8":
-  version "1.12.9"
-  resolved "https://registry.yarnpkg.com/@langchain/langgraph-sdk/-/langgraph-sdk-1.12.9.tgz#b8e66e00af207f18e56eb6cd916c1ee8e7608745"
-  integrity sha512-A1LkLPVu00dj+9aErXPBLhmFURHtnnRO9KRFST+xAwurqQTa+LxC9ixxF7p+ZMo5P70qMFoaP8Ud2wuZmYD4xw==
+"@langchain/langgraph-sdk@~1.12.0":
+  version "1.12.0"
+  resolved "https://registry.yarnpkg.com/@langchain/langgraph-sdk/-/langgraph-sdk-1.12.0.tgz#b063a7eba0a66f51cbc841a824626a47eca1eec9"
+  integrity sha512-F3AOZjKZRUGmE3FzY+RaVZI6WzXOkwnuF7jqgto6rDPSnO9OdVdYGvwGDi3jjRGf5xLoDtX2dpsR9z5KptU+5A==
  dependencies:
-    "@langchain/protocol" "^0.0.20"
+    "@langchain/protocol" "^0.0.19"
    "@types/json-schema" "^7.0.15"
    p-queue "^9.0.1"
    p-retry "^7.1.1"

-"@langchain/langgraph@^1.5.3":
-  version "1.5.3"
-  resolved "https://registry.yarnpkg.com/@langchain/langgraph/-/langgraph-1.5.3.tgz#9a921c9e099c2e3009f34987e0acb2645636bb74"
-  integrity sha512-cuqswNgfoF/J3/r9K5Qm7EnQc2f0mz7uWlAAs751KWhoK8sKfmuLABghF4b1LYq1NpK72XG1x8lWPyg45M8BOA==
+"@langchain/langgraph@^1.4.18":
+  version "1.4.18"
+  resolved "https://registry.yarnpkg.com/@langchain/langgraph/-/langgraph-1.4.18.tgz#c8cc4ea734834262fdb00ae6a45a0849620e4fd2"
+  integrity sha512-yrMMJ9hk2NVMD2xU2WoVrgFawAU6s/RzEl/dX9BhlyxZHazo1wHY35z4K2BIBzTUh4z3giCzrUoqRAqW2CWpWg==
  dependencies:
-    "@langchain/langgraph-checkpoint" "^1.2.1"
-    "@langchain/langgraph-sdk" "~1.12.8"
-    "@langchain/protocol" "^0.0.20"
+    "@langchain/langgraph-checkpoint" "^1.1.5"
+    "@langchain/langgraph-sdk" "~1.12.0"
+    "@langchain/protocol" "^0.0.19"
    "@standard-schema/spec" "1.1.0"

-"@langchain/protocol@^0.0.20":
-  version "0.0.20"
-  resolved "https://registry.yarnpkg.com/@langchain/protocol/-/protocol-0.0.20.tgz#441a57a6176f634306d9214da65d35033355d5e9"
-  integrity sha512-sxlkDG2/HGyjDFLTJ8B/o3oglRjOv8iLCFgrV0550/Vym3V6RZ0SUjAQFe8jrLQw8ZXjERy3swJp5OODBSrUYA==
+"@langchain/protocol@^0.0.19":
+  version "0.0.19"
+  resolved "https://registry.yarnpkg.com/@langchain/protocol/-/protocol-0.0.19.tgz#7fe43fed115dc34b3b4c246e8d5283fbcbfab7b0"
+  integrity sha512-9hKcRrH7cBX6gfutdfXPoft1OCchHe4FEpALoDJMl5Qu+n/YG5ynZmyu8+8cxORlPwHBoKTxggvXz+76M1yX1Q==

 "@pkgr/core@^0.3.6":
  version "0.3.6"
@@ -202,35 +197,35 @@
  resolved "https://registry.yarnpkg.com/@tsconfig/recommended/-/recommended-1.0.13.tgz#269fce3ad04ca70b93269ff44cca81b950f542da"
  integrity sha512-sySRuBfMKyKO/j2ZAhR8kSembhjuPEV4Ra3AHtmWLq51+iGaudr45crPSzNC5b7/Ctrh9dfUpBuTlYrH6rM58Q==

-"@turbo/darwin-64@2.11.10":
-  version "2.11.10"
-  resolved "https://registry.yarnpkg.com/@turbo/darwin-64/-/darwin-64-2.11.10.tgz#824aa74de92806ef2a21932b4148feaea98e8887"
-  integrity sha512-By4idRap5+nLnMuRzLB4qkOPRlvNdyY1ne4VJYDyUoUB11H94k7uif9mbe3JT8JSNXs1D68uMcBj6hJ/jMQRvA==
+"@turbo/darwin-64@2.11.5":
+  version "2.11.5"
+  resolved "https://registry.yarnpkg.com/@turbo/darwin-64/-/darwin-64-2.11.5.tgz#6ddc580c2b7d05e578ca1c06b3f61473f4b7b00e"
+  integrity sha512-KdY4y7BBjIisl+jAkb3FFaRjClGqHyaeHCcVcCT8LBzFFwUu6thgfxyRZAx0uL4KoxLmH+iOan8UhVf/aDDcaA==

-"@turbo/darwin-arm64@2.11.10":
-  version "2.11.10"
-  resolved "https://registry.yarnpkg.com/@turbo/darwin-arm64/-/darwin-arm64-2.11.10.tgz#e9de7c9b9eb2a428cd4fb63fb9826696107339a4"
-  integrity sha512-pyEYlVcuexOPa92p0Wlwl9YT1Is5D60lxN3ItWm3g30YLvFaUq86TF4BBWg5ZAc0uMTnrOzCvuCsOBTdzUWnRQ==
+"@turbo/darwin-arm64@2.11.5":
+  version "2.11.5"
+  resolved "https://registry.yarnpkg.com/@turbo/darwin-arm64/-/darwin-arm64-2.11.5.tgz#a756c67bb828cd00d03e909769dd39453c1f1e69"
+  integrity sha512-ToZDGi2u410+TfRtC/O1/LpujGgvNJoRBZnwVXob7oO0+3OSlwIO3zofXKUvwQvlba7a8ZXPyCZwufjAXd7f0w==

-"@turbo/linux-64@2.11.10":
-  version "2.11.10"
-  resolved "https://registry.yarnpkg.com/@turbo/linux-64/-/linux-64-2.11.10.tgz#e9f48a6383e7c6926a488f329343792de3ee537c"
-  integrity sha512-1tYeR/IDZ5HEdsb0jNq2L2xam5nMQ+g80tlV2BZmv4OFw+pMcUM0mMmUcfc5wXPPNHVNPuDMjh9Y8G8HgXPLZA==
+"@turbo/linux-64@2.11.5":
+  version "2.11.5"
+  resolved "https://registry.yarnpkg.com/@turbo/linux-64/-/linux-64-2.11.5.tgz#b95c05218aebb06c06e5f991d48c55b78dc5e005"
+  integrity sha512-Ub2d/nAbdWLaSytcEaPp1wm/YuIvHEIqNrCRMI/UgOGyFdOhgxm8VyWPAJilQWRYxYVrqEUoy2K5S5K8SG50rA==

-"@turbo/linux-arm64@2.11.10":
-  version "2.11.10"
-  resolved "https://registry.yarnpkg.com/@turbo/linux-arm64/-/linux-arm64-2.11.10.tgz#d76831f850d30ef386b221b8ee72270a5ee7e2ba"
-  integrity sha512-HuekQxvVGhUd46g1Im/DKdOtglHr4/gguZAvzEpPUgtxNkztSa8lWhQEGQ+EmPQ0n7w19qjThFU+OfEEd0uvlw==
+"@turbo/linux-arm64@2.11.5":
+  version "2.11.5"
+  resolved "https://registry.yarnpkg.com/@turbo/linux-arm64/-/linux-arm64-2.11.5.tgz#c7a1d1a44c8c8dcff4b72fbafe9a5059c8fb668a"
+  integrity sha512-JQjmGxp724Wuft9FAxPMtmBur1CEdUyxJ+FVoIvKkgj63rXHl9PYCWrsU2tMjVi609XTQ3M8vZD9Yc9qVAVYrw==

-"@turbo/windows-64@2.11.10":
-  version "2.11.10"
-  resolved "https://registry.yarnpkg.com/@turbo/windows-64/-/windows-64-2.11.10.tgz#fb29a315a112afac9f01a4a1ea7601b28f140f31"
-  integrity sha512-UJOP3BkbreY3/JlMgJR6ZiimxYIBn+c+B4tnBIxD0E9c3Estmk+XoVNVBNBottZLNRXe3/ScgOU4+/k8tIWysg==
+"@turbo/windows-64@2.11.5":
+  version "2.11.5"
+  resolved "https://registry.yarnpkg.com/@turbo/windows-64/-/windows-64-2.11.5.tgz#60bdaaa7e8ba32f32623b31a1c75f6c3db400a0c"
+  integrity sha512-AFkbPmXNd8XgCi/66YEHR2bVl3gtusXyDihTIVEPAuSB+7ulLmJePvz1unWPVKLHdbCTTIdKq2mpJ1B1e3lJXw==

-"@turbo/windows-arm64@2.11.10":
-  version "2.11.10"
-  resolved "https://registry.yarnpkg.com/@turbo/windows-arm64/-/windows-arm64-2.11.10.tgz#bac3077b0a39643043ece360ff1f4f2af9272106"
-  integrity sha512-xOkEjF3ws/b/YNlc+bvJHMYBn+vL+QbEISZFVi0qS+ImmhA1X3/gmNmBrjjIG3dg6aeN+n6gQitzSkXQ286qJQ==
+"@turbo/windows-arm64@2.11.5":
+  version "2.11.5"
+  resolved "https://registry.yarnpkg.com/@turbo/windows-arm64/-/windows-arm64-2.11.5.tgz#18bd5a0ad30c4e094995786bd78916b6de6b5c1c"
+  integrity sha512-52ziXYP3snGOxjv19xA3WL1WDKv9Q6uDAa/7EKIR5j4hocMlYURkrOHbJ2ZZI+VfPU5MwKpcGeRfHxHJu7Y/Pw==

 "@types/esrecurse@^4.3.1":
  version "4.3.1"
@@ -252,100 +247,110 @@
  resolved "https://registry.yarnpkg.com/@types/json5/-/json5-0.0.29.tgz#ee28707ae94e11d2b827bcbe5270bcea7f3e71ee"
  integrity sha512-dRLjCWHYg4oaA77cxO64oO+7JwCwnIzkZPdrrC71jQmQtlhM556pwKo5bUzqvZndkVbeFLIIi+9TC40JNF5hNQ==

-"@typescript-eslint/eslint-plugin@^8.72.1":
-  version "8.72.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.72.1.tgz#95e29de63ce7ed793eb1c6efd9f8b802ce808262"
-  integrity sha512-5CokTWXpmbylfFabsbvHC0CAw3XLaGnoa+nFJX5FR592h/LoZsENUE6p/rg5xvkKrFEXz6pYmgI29AgXc2N3BQ==
+"@typescript-eslint/eslint-plugin@^8.70.1":
+  version "8.70.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.70.1.tgz#d404bac4cb04e4dcd20086e46e13c952bd0771e0"
+  integrity sha512-nDNrUQ/4ruSNYbu749TRY7cfrzPtoLHEXSNBI8aaNY32LlZCajixqRf3FqcKC4p5Cam4VOHYx/t+i5+nKXvrqA==
  dependencies:
    "@eslint-community/regexpp" "^4.12.2"
-    "@typescript-eslint/scope-manager" "8.72.1"
-    "@typescript-eslint/type-utils" "8.72.1"
-    "@typescript-eslint/utils" "8.72.1"
-    "@typescript-eslint/visitor-keys" "8.72.1"
+    "@typescript-eslint/scope-manager" "8.70.1"
+    "@typescript-eslint/type-utils" "8.70.1"
+    "@typescript-eslint/utils" "8.70.1"
+    "@typescript-eslint/visitor-keys" "8.70.1"
    ignore "^7.0.5"
    natural-compare "^1.4.0"
    ts-api-utils "^2.5.0"

-"@typescript-eslint/parser@^8.72.1":
-  version "8.72.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-8.72.1.tgz#7370b68dadc3819b9aac68ea340bd8b43ee62379"
-  integrity sha512-ZGwZP4OCfyA0AQTpEAMWz+rtX01DRhQWW5hB0ucKDEIX5U7jdmPSaMx94rQfaPAQzIYz2BimOgKOJtjfpRFQ9g==
+"@typescript-eslint/parser@^8.70.1":
+  version "8.70.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-8.70.1.tgz#6c99b7b954efc05dae179001c8b477d1a8948dcf"
+  integrity sha512-nO974WLllwhSFWQXnMLj6nDGa8f0khKEz1JzpPJ1u7Vm/4X1X6ZHajpoknU4bb41vJyMB0HHVyS2GqdhWfIXZw==
  dependencies:
-    "@typescript-eslint/scope-manager" "8.72.1"
-    "@typescript-eslint/types" "8.72.1"
-    "@typescript-eslint/typescript-estree" "8.72.1"
-    "@typescript-eslint/visitor-keys" "8.72.1"
+    "@typescript-eslint/scope-manager" "8.70.1"
+    "@typescript-eslint/types" "8.70.1"
+    "@typescript-eslint/typescript-estree" "8.70.1"
+    "@typescript-eslint/visitor-keys" "8.70.1"
    debug "^4.4.3"

-"@typescript-eslint/project-service@8.72.1":
-  version "8.72.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/project-service/-/project-service-8.72.1.tgz#1d09902a9c23f6cfab779e5acc78a45abf540add"
-  integrity sha512-fAuVMkwdO/huI8nyo/WKnNKf6Gag93S56Rh3Ts5mGcavwSdaN8tRg1gCeIGX8PF+nzp1BjGfO4gHhGzW1J6jTg==
+"@typescript-eslint/project-service@8.70.1":
+  version "8.70.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/project-service/-/project-service-8.70.1.tgz#d5635594cc8a573f0e15a772b1704e93a00134c1"
+  integrity sha512-62xOgboPfwc3/IgPSX/W6oQR3ZbF04194FPGUGH8HL8iLFHbt/456/8Ph1wLNUgVF+s94FlHoipBsz+v7+LMnA==
  dependencies:
-    "@typescript-eslint/tsconfig-utils" "^8.72.1"
-    "@typescript-eslint/types" "^8.72.1"
+    "@typescript-eslint/tsconfig-utils" "^8.70.1"
+    "@typescript-eslint/types" "^8.70.1"
    debug "^4.4.3"

-"@typescript-eslint/scope-manager@8.72.1":
-  version "8.72.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-8.72.1.tgz#a0fb4dfe5aa2b0149b7a2d1fd00d947992b13067"
-  integrity sha512-lC/t6eMCZZQAAKZEYGL6RDVSuFehpdmMT6h+nJIjIa6oylN/PwDgDVtEIbB7O9xFfZYtZAYLoLlDNWKJhtF+uQ==
+"@typescript-eslint/scope-manager@8.70.1":
+  version "8.70.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-8.70.1.tgz#0feeae4da2d279b960cdbfe5e0a02fbf1195e93f"
+  integrity sha512-Pa0EeSeAusQc1WbjQMac+YfenewYTBu0KjgYvkUKwhXaHUKbFog23Dm/rp0DX/6tyYOQ3Xl1a+3EcFNZynGHCw==
  dependencies:
-    "@typescript-eslint/types" "8.72.1"
-    "@typescript-eslint/visitor-keys" "8.72.1"
+    "@typescript-eslint/types" "8.70.1"
+    "@typescript-eslint/visitor-keys" "8.70.1"

-"@typescript-eslint/tsconfig-utils@8.72.1", "@typescript-eslint/tsconfig-utils@^8.72.1":
-  version "8.72.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.72.1.tgz#07394c85095ee38455e76bc221ba23650af73e44"
-  integrity sha512-e4D5R5vpeAEPBxT2BAzsFQL3sbwyeeeo5+aczgNSRK1V734jE7pTqaGFU+fXapWEQwnZbpFaTn32+Z8DwS6OTg==
+"@typescript-eslint/tsconfig-utils@8.70.1":
+  version "8.70.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.70.1.tgz#e9353a6e5f3498a29b40946ca3e11f6166fef09e"
+  integrity sha512-jumze1fPI+sDOaM2TWGQdn39PDxTr7TZGeuyLkAbNyx2vtMT3uRnVKChN0hfht5V2TugphJzF6bYXvBcE09qqg==

-"@typescript-eslint/type-utils@8.72.1":
-  version "8.72.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/type-utils/-/type-utils-8.72.1.tgz#f1f592f63bd9726de21191aae3ccf64a813914b8"
-  integrity sha512-iY2wlmyrXJmx4yxUGP3aYCFF3cA/6ShddOKmLU2dx7LnEykbAM8WThlxZEfd1NddqceF6eJmZUayxx9oKIYNlg==
+"@typescript-eslint/tsconfig-utils@^8.70.1":
+  version "8.71.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.71.0.tgz#83a69c9a514af8f5ff099cc6c0d609c273e8f039"
+  integrity sha512-Z1UlWHADEK2Mlb9NpWfDeSjqoZ5EyrOv4R3eQpbkzqn/EwaIdOpXXupEA1+0ZIOSJSZZDBHG0BrQyN8zUG6Pwg==
+
+"@typescript-eslint/type-utils@8.70.1":
+  version "8.70.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/type-utils/-/type-utils-8.70.1.tgz#6ea36f2c7dc0776c1c8e1c380b4896f00bc4c27f"
+  integrity sha512-7zKTnyvaVWqzLZHPFQtX1hVHqgkMC+WebPWakNCSyrQVbIP1AM0L0TlBZtACldIRb6PptI8Odk+jyZ5kP3B1VA==
  dependencies:
-    "@typescript-eslint/types" "8.72.1"
-    "@typescript-eslint/typescript-estree" "8.72.1"
-    "@typescript-eslint/utils" "8.72.1"
+    "@typescript-eslint/types" "8.70.1"
+    "@typescript-eslint/typescript-estree" "8.70.1"
+    "@typescript-eslint/utils" "8.70.1"
    debug "^4.4.3"
    ts-api-utils "^2.5.0"

-"@typescript-eslint/types@8.72.1", "@typescript-eslint/types@^8.72.1":
-  version "8.72.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-8.72.1.tgz#067d8f738c294611e33a1425ae43ac9b9c2f24e3"
-  integrity sha512-LmE5IhQet1BWOWEXqBrVtBPsMAOQ6Nzk35d+WLh3mk4EUF33sqlfxjio1MdYeSvKSG5skactKKuixBIKXhL4Rw==
+"@typescript-eslint/types@8.70.1":
+  version "8.70.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-8.70.1.tgz#2022b9d07d057174eba25b9bbd289641d262a196"
+  integrity sha512-Dm1ypdhhrGCTyyehxElhgJ6kgk8MVCv5qXdoOVqPr1uqk42jX8KjrZqhROvdShczA8qrDoYiOWn1ykWlx2k81Q==

-"@typescript-eslint/typescript-estree@8.72.1":
-  version "8.72.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-8.72.1.tgz#e93b9cc3a56bf12f5fed857bb8f4963cce7924ee"
-  integrity sha512-DAlUoUV93hIvrtIQLwCbmZQYVZwOMhiHJrOVUUIWicFZaIYjTRqlY3I/NZevfkLmSqkNHRu2qYDcq9lrn16oOQ==
+"@typescript-eslint/types@^8.70.1":
+  version "8.71.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-8.71.0.tgz#a230a121e71665060afe27d1f1ad110371f9451e"
+  integrity sha512-cJ4OoxPGWvFnBTnSZyaU+qJzGTqPTGJY+gDchj6cRyLRdmIdt4rcsE4twj+zPfrNiWuVi38wijHzShL++Z9atQ==
+
+"@typescript-eslint/typescript-estree@8.70.1":
+  version "8.70.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-8.70.1.tgz#ced48fee6f7043835d2edfed9786ae74813a3c99"
+  integrity sha512-TU8PwyGN0PQJUcE96mw8eCQ44SmxGdQlJmlWakHaHQ15eIuuvye5yNtmh/i6oS88jzXVQB71xdNkbkB/fMwL0g==
  dependencies:
-    "@typescript-eslint/project-service" "8.72.1"
-    "@typescript-eslint/tsconfig-utils" "8.72.1"
-    "@typescript-eslint/types" "8.72.1"
-    "@typescript-eslint/visitor-keys" "8.72.1"
+    "@typescript-eslint/project-service" "8.70.1"
+    "@typescript-eslint/tsconfig-utils" "8.70.1"
+    "@typescript-eslint/types" "8.70.1"
+    "@typescript-eslint/visitor-keys" "8.70.1"
    debug "^4.4.3"
    minimatch "^10.2.2"
    semver "^7.7.3"
    tinyglobby "^0.2.15"
    ts-api-utils "^2.5.0"

-"@typescript-eslint/utils@8.72.1":
-  version "8.72.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/utils/-/utils-8.72.1.tgz#f210c1bf4a25aa1306df80c702ed30bbbc9b4d3d"
-  integrity sha512-5v5liypurJBFHCBNqh/RjsymAD+VWcE0djuGY/BUqp5fC3Qn+luWDEksjuTtWjPn6i5zQlUtkZCRG/CYG0yCkA==
+"@typescript-eslint/utils@8.70.1":
+  version "8.70.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/utils/-/utils-8.70.1.tgz#6a97887cee702df513692f5cdc7f79baeef48e02"
+  integrity sha512-Esgul8MsnKnRLdYU2Eb2cRV9bS5HJYtKj1ByJnOzzG2M58DGdSUQ1jUuILxipqcpB2h9WLrbD5GijIWUjX/Tqw==
  dependencies:
    "@eslint-community/eslint-utils" "^4.9.1"
-    "@typescript-eslint/scope-manager" "8.72.1"
-    "@typescript-eslint/types" "8.72.1"
-    "@typescript-eslint/typescript-estree" "8.72.1"
+    "@typescript-eslint/scope-manager" "8.70.1"
+    "@typescript-eslint/types" "8.70.1"
+    "@typescript-eslint/typescript-estree" "8.70.1"

-"@typescript-eslint/visitor-keys@8.72.1":
-  version "8.72.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-8.72.1.tgz#c7aec9883b44ef795f1b8200df81d9d44d355de7"
-  integrity sha512-SB8xqipSzZHUePCCLNeYxqnxq83X61/qzNhjQGbTfjxGZIeOEP7tBgWYX05Tcd6CgE02WdTJnh5b8kMZJ/+bnQ==
+"@typescript-eslint/visitor-keys@8.70.1":
+  version "8.70.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-8.70.1.tgz#b4cde0ed16982bd963a6310fcae554f59fd14124"
+  integrity sha512-Vwj9lUIW5Xq3wQ9w6gv3R86g1hMK8f2zNOdGTAgeXUMMXFK78G9ruCjjqutHMNJc0+CH7LYRnHeUB9IT8wFmcw==
  dependencies:
-    "@typescript-eslint/types" "8.72.1"
+    "@typescript-eslint/types" "8.70.1"
    eslint-visitor-keys "^5.0.0"

 "@typescript/typescript-aix-ppc64@7.0.2":
@@ -576,17 +581,17 @@ base64-js@^1.5.1:
  integrity sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==

 brace-expansion@^1.1.7:
-  version "1.1.21"
-  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.21.tgz#edf4fab5c64d051aea5a8def49aba1c7522279f3"
-  integrity sha512-9zeA+KLZNNzglF2TPKRQEDyx6Yby7daAkuy8MiPzpXPsYDWi/DRM8jmwUDxokQjYqBpv5DgPiwD4h4ZZSy1Ujw==
+  version "1.1.12"
+  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.12.tgz#ab9b454466e5a8cc3a187beaad580412a9c5b843"
+  integrity sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==
  dependencies:
    balanced-match "^1.0.0"
    concat-map "0.0.1"

 brace-expansion@^5.0.8:
-  version "5.0.12"
-  resolved "https://registry.npmjs.org/brace-expansion/-/brace-expansion-5.0.12.tgz#995fbb4750a77c4d16a7dc942ff2ca6ef8e675ec"
-  integrity sha512-YovQ3rzhaLMIrDjNDMkNS01tea93qhEhG5xy8f6+R0l+dw3Ki+5sCoIoI942iuLZTHWogWktgwVDhU09iNEimQ==
+  version "5.0.9"
+  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-5.0.9.tgz#7c72438809b5fa5babf54199a1f1c281a6984fcf"
+  integrity sha512-ScQ4IuvIEF1TMlP7Zt+vjJ//9zlPb2SDcxWxM3bk8s6t6GGdJ7KO1dCcTidOPJKePW30LE/2cT7wCyPho9/Wxg==
  dependencies:
    balanced-match "^4.0.2"

@@ -885,13 +890,13 @@ eslint-plugin-no-instanceof@^1.0.1:
  resolved "https://registry.yarnpkg.com/eslint-plugin-no-instanceof/-/eslint-plugin-no-instanceof-1.0.1.tgz#5d9fc86d160df6991b654b294a62390207f1bb97"
  integrity sha512-zlqQ7EsfzbRO68uI+p8FIE7zYB4njs+nNbkNjSb5QmLi2et67zQLqSeaao5U9SpnlZTTJC87nS2oyHo2ACtajw==

-eslint-plugin-prettier@^5.5.7:
-  version "5.5.7"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-prettier/-/eslint-plugin-prettier-5.5.7.tgz#ebef3acc2d664333b1356b717780198abc635398"
-  integrity sha512-WjHyn3GrFd+ZR0rzsLiM4zJZ35PZMOE0SUIxzGmnWNG0126yNfJKJzObmmkYDwHJfGlkz3PSlzyG9ez/LJntwg==
+eslint-plugin-prettier@^5.5.6:
+  version "5.5.6"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-prettier/-/eslint-plugin-prettier-5.5.6.tgz#363ebe4d769bce157ccdd8129ce3efd91dc62564"
+  integrity sha512-ifetmTcxWfz+4qRW3pH/ujdTq2jQIj59AxJMIN26K5avYgU8dxycUETQonWiW+wPrYXA0j3Try0l1CnwVQtDqQ==
  dependencies:
    prettier-linter-helpers "^1.0.1"
-    synckit "^0.12.3"
+    synckit "^0.11.13"

 eslint-scope@^9.1.2:
  version "9.1.2"
@@ -918,10 +923,10 @@ eslint-visitor-keys@^5.0.0, eslint-visitor-keys@^5.0.1:
  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-5.0.1.tgz#9e3c9489697824d2d4ce3a8ad12628f91e9f59be"
  integrity sha512-tD40eHxA35h0PEIZNeIjkHoDR4YjjJp34biM0mDvplBe//mB+IHCqHDGV7pxF+7MklTvighcCPPZC7ynWyjdTA==

-eslint@^10.13.0:
-  version "10.13.0"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-10.13.0.tgz#a8a4742648c0fa9131f429b509de5407682d4864"
-  integrity sha512-UohDjD4zSzEwhf58M3O7vc/ycc8O1I7dNlhtD0WxE8Px8EHNJKtUwzBqrzeGhisRuv2ag4sAYswszCJRgKXYUg==
+eslint@^10.11.0:
+  version "10.11.0"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-10.11.0.tgz#304d1591b7c6a327e3f64b4f550f99fda160ae20"
+  integrity sha512-P7a6UEEqb9G95MYAtqkmsTbVXIYyzIfl6NGOIJk162PaahFxFyeGcrlXYFSiagECg4sEm8IseJdZBKR3rx6MsQ==
  dependencies:
    "@eslint-community/eslint-utils" "^4.8.0"
    "@eslint-community/regexpp" "^4.12.2"
@@ -1471,10 +1476,10 @@ keyv@^5.6.0:
  dependencies:
    "@keyv/serialize" "^1.1.1"

-"langsmith@>=0.11.0 <1.0.0":
-  version "0.11.6"
-  resolved "https://registry.yarnpkg.com/langsmith/-/langsmith-0.11.6.tgz#cdc0f89a14632f8b172deea5daa1ee625f7442c3"
-  integrity sha512-5hfJM5DEZpXFxUS3U9nY2CMyBRmFnhkJj7znUODJ8vsr/Jx38tGJl4GIhV484xAY7yQFWrFOTDr33PB95kHUKg==
+"langsmith@>=0.5.0 <1.0.0":
+  version "0.7.1"
+  resolved "https://registry.yarnpkg.com/langsmith/-/langsmith-0.7.1.tgz#d721ad2e5211f9a5373e8a84eb4fed36b5621971"
+  integrity sha512-Wjk90UjNoY5cBHMlNAC/eZx5clI8jnjBOBW8uJu8+MWBtx0QesNjsUiLtjI+I3UnrpxFFpDqGXcnhBjH654Mqg==
  dependencies:
    p-queue "6.6.2"

@@ -1702,10 +1707,10 @@ prettier-linter-helpers@^1.0.1:
  dependencies:
    fast-diff "^1.1.2"

-prettier@^3.9.10:
-  version "3.9.10"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.9.10.tgz#ac378e432f1a7381518f2e080816bbaefa38d585"
-  integrity sha512-skGHTH1Yb9QvaTC4hWnRTzEYtCpApF0UMBPz+t/0ZPzP8ihefo/btKd+QA7pUE0fEwA1SbS/NmhyEcstdXOIdA==
+prettier@^3.9.9:
+  version "3.9.9"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.9.9.tgz#09b826918c91cd4cbc80e0cbd1d2a922ff04f233"
+  integrity sha512-Z/CJHIkdujO/OtN7nXUii0Rf3VT5SRuhjBA82Xvu2XhBUgX3nhP67T0LHceBdQLex7OOFGTox+Q5Yg8Jk2Qivg==

 punycode@^2.1.0:
  version "2.3.1"
@@ -1935,12 +1940,11 @@ supports-preserve-symlinks-flag@^1.0.0:
  resolved "https://registry.yarnpkg.com/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz#6eda4bd344a3c94aea376d4cc31bc77311039e09"
  integrity sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==

-synckit@^0.12.3:
-  version "0.12.3"
-  resolved "https://registry.yarnpkg.com/synckit/-/synckit-0.12.3.tgz#6e30a3441d095ed04c311077350ce205465512d6"
-  integrity sha512-U+/AXT6LWsxnj2vz9HeUuPWBNgdWxjyIEjEPdbJARC9txmgPzo2VEdqnFo4hHaNyMPtycyVJrSaQYeQv/PoyyA==
+synckit@^0.11.13:
+  version "0.11.13"
+  resolved "https://registry.yarnpkg.com/synckit/-/synckit-0.11.13.tgz#062a5ea57d81befc35892f8254de5c567e97c80a"
+  integrity sha512-eNRKgb3z66Yp3D2CixVujOUvXLFUTij/zVnV8KRyvFdQwpz7I5DS8UfRkTeLzb64u+dkzDSdelE24izu+zSSUg==
  dependencies:
-    "@dual-bundle/import-meta-resolve" "^4.2.1"
    "@pkgr/core" "^0.3.6"

 tinyglobby@^0.2.15:
@@ -1966,17 +1970,17 @@ tsconfig-paths@^3.15.0:
    minimist "^1.2.6"
    strip-bom "^3.0.0"

-turbo@^2.11.10:
-  version "2.11.10"
-  resolved "https://registry.yarnpkg.com/turbo/-/turbo-2.11.10.tgz#8b1d40debab2b871ff9e908d6f3018aeda04879d"
-  integrity sha512-3GJYwig8ygEI89oaOZdduJX8/aw6O9eRPYHoIt6T3FZl9hkKjiyIspufJoVgqXihPoJu8M5CSV0DlZvzfohBCw==
+turbo@^2.11.5:
+  version "2.11.5"
+  resolved "https://registry.yarnpkg.com/turbo/-/turbo-2.11.5.tgz#e7223abd0555b978d3efe1b00ea9a98f43afb7ab"
+  integrity sha512-qLXheqz3TUvJpHIV6MUBwkNkvwKxMVG/QsimyiKT9DfNWPHJ294G/i5nDaH+fbHJt3UH7orubNNxAqYkbUNGAQ==
  optionalDependencies:
-    "@turbo/darwin-64" "2.11.10"
-    "@turbo/darwin-arm64" "2.11.10"
-    "@turbo/linux-64" "2.11.10"
-    "@turbo/linux-arm64" "2.11.10"
-    "@turbo/windows-64" "2.11.10"
-    "@turbo/windows-arm64" "2.11.10"
+    "@turbo/darwin-64" "2.11.5"
+    "@turbo/darwin-arm64" "2.11.5"
+    "@turbo/linux-64" "2.11.5"
+    "@turbo/linux-arm64" "2.11.5"
+    "@turbo/windows-64" "2.11.5"
+    "@turbo/windows-arm64" "2.11.5"

 type-check@^0.4.0, type-check@~0.4.0:
  version "0.4.0"
@@ -2144,6 +2148,6 @@ yocto-queue@^0.1.0:
  integrity sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==

 "zod@^3.25.76 || ^4":
-  version "4.6.7"
-  resolved "https://registry.yarnpkg.com/zod/-/zod-4.6.7.tgz#e806cf64a7f4e37635ce9f2f52c04c3766f75e5b"
-  integrity sha512-g8W2D2kU6a8untc053fX1uVBKzM7yqAxW/3zwk83+6RyF2+SKOuV+c0wBDhUwzV1PaGapmZH+rmcUzPf+3CGwg==
+  version "4.3.6"
+  resolved "https://registry.yarnpkg.com/zod/-/zod-4.3.6.tgz#89c56e0aa7d2b05107d894412227087885ab112a"
+  integrity sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==
@@ -1 +1 @@
-__version__ = "0.4.40"
+__version__ = "0.4.33"
@@ -847,7 +847,6 @@ def dev(
        store=config_json.get("store"),
        wait_for_client=wait_for_client,
        auth=config_json.get("auth"),
-        priority=config_json.get("priority"),
        http=config_json.get("http"),
        ui=config_json.get("ui"),
        ui_config=config_json.get("ui_config"),
@@ -442,7 +442,6 @@ def validate_config(
        "store": config.get("store"),
        "auth": config.get("auth"),
        "encryption": config.get("encryption"),
-        "priority": config.get("priority"),
        "http": config.get("http"),
        # Pass through webhooks config so it can be injected into the image
        "webhooks": config.get("webhooks"),
@@ -607,19 +606,6 @@ def validate_config(
                    f"Invalid encryption.path format: '{encryption_conf['path']}'. "
                    "Must be in format './path/to/file.py:attribute_name'"
                )
-    # Validate priority config
-    if priority_conf := config.get("priority"):
-        if "path" in priority_conf:
-            if ":" not in priority_conf["path"]:
-                raise ValueError(
-                    f"Invalid priority.path format: '{priority_conf['path']}'. "
-                    "Must be in format './path/to/file.py:attribute_name'"
-                )
-            if _is_node_graph(priority_conf["path"]):
-                raise ValueError(
-                    "JavaScript priority callbacks are not supported: "
-                    f"'{priority_conf['path']}'. Use a Python file or module instead."
-                )
    if http_conf := config.get("http"):
        if "app" in http_conf:
            if ":" not in http_conf["app"]:
@@ -663,7 +649,6 @@ _KNOWN_CONFIG_KEYS = {
    "store",
    "auth",
    "encryption",
-    "priority",
    "http",
    "webhooks",
    "checkpointer",
@@ -1095,49 +1080,6 @@ def _update_encryption_path(
    )


-def _update_priority_path(
-    config_path: pathlib.Path, config: Config, local_deps: LocalDeps
-) -> None:
-    """Update priority.path to use Docker container paths."""
-    priority_conf = config.get("priority")
-    if not priority_conf or not (path_str := priority_conf.get("path")):
-        return
-
-    module_str, sep, attr_str = path_str.partition(":")
-    if not sep or not module_str.startswith("."):
-        return  # Already validated or absolute path
-
-    resolved = config_path.parent / module_str
-    if not resolved.exists():
-        raise FileNotFoundError(
-            f"Priority file not found: {resolved} (from {path_str})"
-        )
-    if not resolved.is_file():
-        raise IsADirectoryError(f"Priority path must be a file: {resolved}")
-
-    # Check faux packages first (they take precedence)
-    for faux_path, (_, destpath) in local_deps.faux_pkgs.items():
-        if resolved.is_relative_to(faux_path):
-            new_path = f"{destpath}/{resolved.relative_to(faux_path)}:{attr_str}"
-            priority_conf["path"] = new_path
-            return
-
-    # Check real packages
-    for real_path in local_deps.real_pkgs:
-        if resolved.is_relative_to(real_path):
-            new_path = (
-                f"/deps/{real_path.name}/{resolved.relative_to(real_path)}:{attr_str}"
-            )
-            priority_conf["path"] = new_path
-            return
-
-    raise ValueError(
-        f"Priority file '{resolved}' not covered by dependencies.\n"
-        "Add its parent directory to the 'dependencies' array in your config.\n"
-        f"Current dependencies: {config['dependencies']}"
-    )
-
-
 def _update_checkpointer_path(
    config_path: pathlib.Path, config: Config, local_deps: LocalDeps
 ) -> None:
@@ -1271,9 +1213,6 @@ def _build_runtime_env_vars(config: Config) -> list[str]:
    if (encryption_config := config.get("encryption")) is not None:
        env_vars.append(f"ENV LANGGRAPH_ENCRYPTION='{json.dumps(encryption_config)}'")

-    if (priority_config := config.get("priority")) is not None:
-        env_vars.append(f"ENV LANGGRAPH_PRIORITY='{json.dumps(priority_config)}'")
-
    if (http_config := config.get("http")) is not None:
        env_vars.append(f"ENV LANGGRAPH_HTTP='{json.dumps(http_config)}'")

@@ -1441,8 +1380,6 @@ def python_config_to_docker(
    _update_auth_path(config_path, config, local_deps)
    # Rewrite encryption path, so it points to the correct location in the Docker container
    _update_encryption_path(config_path, config, local_deps)
-    # Rewrite priority path, so it points to the correct location in the Docker container
-    _update_priority_path(config_path, config, local_deps)
    # Rewrite checkpointer path, so it points to the correct location in the Docker container
    _update_checkpointer_path(config_path, config, local_deps)
    # Rewrite HTTP app path, so it points to the correct location in the Docker container
@@ -12,7 +12,7 @@ from collections.abc import Callable, Mapping, Sequence
 from contextlib import contextmanager
 from dataclasses import asdict, dataclass, field
 from datetime import datetime, timezone
-from typing import Generic, Protocol, TypeVar
+from typing import Protocol, TypeVar

 import click
 import click.exceptions
@@ -26,6 +26,7 @@ from langgraph_cli.dependency_tracking import find_tracked_packages
 from langgraph_cli.docker import build_docker_image, can_build_locally
 from langgraph_cli.exec import CommandRunner, Runner, subp_exec
 from langgraph_cli.host_backend import (
+    MAX_PAGE_SIZE,
    ControlPlaneEndpoints,
    HostBackendClient,
    HostBackendError,
@@ -182,15 +183,12 @@ class Listener:
        )
        return cls(
            identifier,
-            str(resource.get("compute_id") or ""),
+            str(resource.get("compute_id", "")),
            tuple(str(namespace) for namespace in namespaces)
            if isinstance(namespaces, list)
            else (),
        )

-    def cells(self) -> tuple[str | None, ...]:
-        return (self.id, self.compute_id, ", ".join(self.namespaces))
-

@dataclass(frozen=True, slots=True)
 class Unplaced:
@@ -233,6 +231,15 @@ class RequestedPlacement:
    def requested(self) -> bool:
        return self.listener_id is not None or self.k8s_namespace is not None

+    def ensure_not_requested(self, deployment_id: str) -> None:
+        if self.requested:
+            raise click.UsageError(
+                "Listener and namespace are fixed when a deployment is created. "
+                f"Deployment {deployment_id} already exists, so drop --listener-id "
+                "and --k8s-namespace, or create a new deployment with a different "
+                "--name."
+            )
+
    def on(self, listener: Listener) -> Placement:
        return OnListener(listener.id, self._namespace(listener))

@@ -278,6 +285,8 @@ def _describe_listeners(listeners: Sequence[Listener]) -> str:
    ]
    if len(listeners) > len(shown):
        lines.append(f"  ... and {len(listeners) - len(shown)} more")
+    if len(listeners) == MAX_PAGE_SIZE:
+        lines.append(f"  (only the first {MAX_PAGE_SIZE} listeners were read)")
    return "\n".join(lines)


@@ -499,9 +508,16 @@ def _source_of(resource: object) -> str | None:
 def find_deployment_by_name(
    client: HostBackendClient, name: str
 ) -> ExistingDeployment | None:
-    for resource in client.list_deployments(name=name, name_contains=name):
+    listed = client.list_deployments(name=name, name_contains=name, limit=MAX_PAGE_SIZE)
+    for resource in listed:
        if resource.get("name") == name and resource.get("id"):
            return ExistingDeployment(str(resource["id"]), _source_of(resource))
+    if len(listed) >= MAX_PAGE_SIZE:
+        raise click.ClickException(
+            "This workspace has more deployments than the CLI can search, so it "
+            f"cannot tell whether '{name}' already exists. Pass --deployment-id to "
+            "update an existing deployment."
+        )
    return None


@@ -576,96 +592,103 @@ def _validate_prebuilt_image(
    _get_emitter().info(f"Image is available for {_DEPLOYMENT_PLATFORM}")


-Resource = Mapping[str, object]
-RowT = TypeVar("RowT")
-
-
-@dataclass(frozen=True, slots=True)
-class Table(Generic[RowT]):
-    headers: tuple[str, ...]
-    cells: Callable[[RowT], tuple[str | None, ...]]
-
-    def render(self, rows: Sequence[RowT]) -> str:
-        grid = [
-            self.headers,
-            *(tuple(cell or "-" for cell in self.cells(row)) for row in rows),
-        ]
-        widths = [max(map(len, column)) for column in zip(*grid, strict=True)]
-        rule = tuple("-" * width for width in widths)
-        return "\n".join(
-            "  ".join(
-                cell.ljust(width) for cell, width in zip(line, widths, strict=True)
-            )
-            for line in (grid[0], rule, *grid[1:])
-        )
-
-
-def _text(resource: Resource, key: str) -> str | None:
-    value = resource.get(key)
-    return str(value) if value else None
-
-
-def _deployment_url(deployment: Resource) -> str | None:
+def _extract_deployment_url(deployment: dict[str, object]) -> str:
    source_config = deployment.get("source_config")
-    custom_url = (
-        source_config.get("custom_url") if isinstance(source_config, Mapping) else None
-    )
-    return custom_url if isinstance(custom_url, str) and custom_url else None
+    if isinstance(source_config, dict):
+        custom_url = source_config.get("custom_url")
+        if isinstance(custom_url, str) and custom_url:
+            return custom_url
+    return "-"


-def _with_replaced_status(revisions: Sequence[Resource]) -> list[Resource]:
-    live_index = next(
+def format_deployments_table(deployments: Sequence[dict[str, object]]) -> str:
+    headers = ("Deployment ID", "Deployment Name", "Deployment URL")
+    rows = [
        (
-            index
-            for index, revision in enumerate(revisions)
-            if revision.get("status") == "DEPLOYED"
-        ),
-        None,
-    )
-    return [
-        {**revision, "status": "REPLACED"}
-        if revision.get("status") == "DEPLOYED" and index != live_index
-        else revision
-        for index, revision in enumerate(revisions)
+            str(deployment.get("id", "-") or "-"),
+            str(deployment.get("name", "-") or "-"),
+            _extract_deployment_url(deployment),
+        )
+        for deployment in deployments
+    ]
+    widths = [
+        max(len(headers[index]), *(len(row[index]) for row in rows))
+        for index in range(len(headers))
    ]

+    def format_row(row: Sequence[str]) -> str:
+        return "  ".join(value.ljust(widths[index]) for index, value in enumerate(row))

-@dataclass(frozen=True, slots=True)
-class DeploymentRow:
-    id: str
-    name: str | None
-    url: str | None
+    lines = [format_row(headers), format_row(tuple("-" * width for width in widths))]
+    lines.extend(format_row(row) for row in rows)
+    return "\n".join(lines)

-    @classmethod
-    def from_resource(cls, deployment: Resource) -> "DeploymentRow":
-        identifier = _text(deployment, "id")
-        if identifier is None:
-            raise HostBackendError(
-                "The control plane returned a deployment without an id."
+
+def _extract_listener_namespaces(listener: dict[str, object]) -> str:
+    compute_config = listener.get("compute_config")
+    namespaces = (
+        compute_config.get("k8s_namespaces")
+        if isinstance(compute_config, dict)
+        else None
+    )
+    if isinstance(namespaces, list) and namespaces:
+        return ", ".join(str(namespace) for namespace in namespaces)
+    return "-"
+
+
+def format_listeners_table(listeners: Sequence[dict[str, object]]) -> str:
+    headers = ("Listener ID", "Compute ID", "Namespaces")
+    rows = [
+        (
+            str(listener.get("id", "-") or "-"),
+            str(listener.get("compute_id", "-") or "-"),
+            _extract_listener_namespaces(listener),
+        )
+        for listener in listeners
+    ]
+    widths = [
+        max(len(headers[index]), *(len(row[index]) for row in rows))
+        for index in range(len(headers))
+    ]
+
+    def format_row(row: Sequence[str]) -> str:
+        return "  ".join(value.ljust(widths[index]) for index, value in enumerate(row))
+
+    lines = [format_row(headers), format_row(tuple("-" * width for width in widths))]
+    lines.extend(format_row(row) for row in rows)
+    return "\n".join(lines)
+
+
+def format_revisions_table(revisions: Sequence[dict[str, object]]) -> str:
+    headers = ("Revision ID", "Status", "Created At")
+    latest_deployed_seen = False
+    rows = []
+    for revision in revisions:
+        status = str(revision.get("status", "-") or "-")
+        if status == "DEPLOYED":
+            if latest_deployed_seen:
+                status = "REPLACED"
+            else:
+                latest_deployed_seen = True
+        rows.append(
+            (
+                str(revision.get("id", "-") or "-"),
+                status,
+                str(revision.get("created_at", "-") or "-"),
            )
-        return cls(identifier, _text(deployment, "name"), _deployment_url(deployment))
+        )

-    def cells(self) -> tuple[str | None, ...]:
-        return (self.id, self.name, self.url)
+    widths = [
+        max(len(headers[index]), *(len(row[index]) for row in rows))
+        for index in range(len(headers))
+    ]

-    def as_json(self) -> dict[str, str | None]:
-        return {"id": self.id, "name": self.name}
+    def format_row(row: Sequence[str]) -> str:
+        return "  ".join(value.ljust(widths[index]) for index, value in enumerate(row))

-
-DEPLOYMENTS_TABLE = Table(
-    ("Deployment ID", "Deployment Name", "Deployment URL"), DeploymentRow.cells
-)
-
-LISTENERS_TABLE = Table(("Listener ID", "Compute ID", "Namespaces"), Listener.cells)
-
-REVISIONS_TABLE = Table(
-    ("Revision ID", "Status", "Created At"),
-    lambda revision: (
-        _text(revision, "id"),
-        _text(revision, "status"),
-        _text(revision, "created_at"),
-    ),
-)
+    lines = [format_row(headers), format_row(tuple("-" * width for width in widths))]
+    lines.extend(format_row(row) for row in rows)
+    return "\n".join(lines)


 def format_timestamp(ts) -> str:
@@ -827,6 +850,7 @@ def _find_deployment(
            lambda c: c.list_deployments(
                agent_id=selector.agent_id,
                agent_environment=selector.environment,
+                limit=MAX_PAGE_SIZE,
            ),
        )
        if len(existing) > 1:
@@ -992,15 +1016,20 @@ def _print_deployment_result(
    dashboard_label: str,
    status_url: str | None = None,
 ) -> None:
+    """Print final deployment status and raise on failure."""
    em = _get_emitter()
-    deployment = client.get_deployment(deployment_id)
-    url = _deployment_url(deployment) if isinstance(deployment, Mapping) else None
+    dep_info = client.get_deployment(deployment_id)
+    custom_url = None
+    if isinstance(dep_info, dict):
+        sc = dep_info.get("source_config")
+        if isinstance(sc, dict):
+            custom_url = sc.get("custom_url")

    if last_status == "DEPLOYED":
        em.result(
            "succeeded",
            deployment_id=deployment_id,
-            url=url,
+            url=custom_url,
            status_url=status_url,
        )
    elif last_status in ("BUILD_FAILED", "DEPLOY_FAILED", "CREATE_FAILED"):
@@ -1026,28 +1055,15 @@ def _print_deployment_result(
 # ---------------------------------------------------------------------------


-def _strip_url_scheme(url: str) -> str:
-    """Return a registry reference without a trailing slash or URL scheme."""
-    reference = url.rstrip("/")
-    if "://" in reference:
-        reference = reference.split("//", 1)[1]
-    return reference
-
-
-# Artifact Registry's username for access tokens. Control planes whose registry
-# needs another one return it as `username`.
-_DEFAULT_REGISTRY_USERNAME = "oauth2accesstoken"
-
-
@contextmanager
-def _docker_config_for_token(registry_host: str, token: str, username: str):
+def _docker_config_for_token(registry_host: str, token: str):
    """Create a temporary Docker config with only the push token.

    Yields the path to a temporary config directory that can be passed
    to `docker --config <path>` so that system credential helpers
    (e.g. gcloud) don't interfere with the push token.
    """
-    auth_b64 = base64.b64encode(f"{username}:{token}".encode()).decode()
+    auth_b64 = base64.b64encode(f"oauth2accesstoken:{token}".encode()).decode()
    config_data = {"auths": {registry_host: {"auth": auth_b64}}}
    with tempfile.TemporaryDirectory() as tmpdir:
        with open(os.path.join(tmpdir, "config.json"), "w") as f:
@@ -1061,8 +1077,6 @@ def _docker_config_for_token(registry_host: str, token: str, username: str):

 _UPLOAD_TIMEOUT_SECONDS = 300
 _BYTES_PER_MIB = 1_048_576
-# Byte range Cloud Storage signs into upload URLs, up to the 200 MB archive limit.
-_GCS_SIZE_RANGE = f"0,{200 * _BYTES_PER_MIB}"


 class _ProgressReader:
@@ -1088,24 +1102,12 @@ class _ProgressReader:
        return self._file_size


-def _upload_source_tarball(
-    signed_url: str,
-    file_path: str,
-    file_size: int,
-    upload_headers: dict[str, str] | None,
-) -> None:
-    """Upload tarball via signed PUT URL with progress display."""
+def _upload_to_gcs(signed_url: str, file_path: str, file_size: int) -> None:
+    """Upload tarball to GCS via signed PUT URL with progress display."""
    import urllib.error
    import urllib.request

    em = _get_emitter()
-    # Control planes that return no `upload_headers` sign for the Cloud Storage
-    # size range. Content-Type is a fallback: without one, urllib sends a form
-    # content type, which breaks signatures that cover it.
-    headers = {
-        "Content-Type": "application/gzip",
-        **(upload_headers or {"X-Goog-Content-Length-Range": _GCS_SIZE_RANGE}),
-    }

    with open(file_path, "rb") as f:
        reader = _ProgressReader(f, file_size, em)
@@ -1113,7 +1115,11 @@ def _upload_source_tarball(
            signed_url,
            data=reader,
            method="PUT",
-            headers={**headers, "Content-Length": str(file_size)},
+            headers={
+                "Content-Type": "application/gzip",
+                "Content-Length": str(file_size),
+                "X-Goog-Content-Length-Range": "0,209715200",
+            },
        )
        try:
            urllib.request.urlopen(req, timeout=_UPLOAD_TIMEOUT_SECONDS)
@@ -1195,37 +1201,10 @@ class DockerBuildCommand:
            return cls(("docker", "build"), ())
        flags: tuple[str, ...] = ("--platform", _DEPLOYMENT_PLATFORM, "--load")
        if not verbose:
-            flags += ("--progress=plain",)
+            flags += ("--progress=quiet",)
        return cls(("docker", "buildx", "build"), flags)


-def _active_docker_host(runner: CommandRunner) -> str | None:
-    """Return the daemon endpoint of the user's active Docker context.
-
-    None when `DOCKER_HOST` is set, which Docker honors with any config
-    directory. Also None when the lookup fails (for example, `DOCKER_CONTEXT`
-    names a context that doesn't exist) or the context has no Docker endpoint
-    (Docker prints `<no value>`); that keeps Docker's own default in place.
-    """
-    if os.environ.get("DOCKER_HOST"):
-        return None
-    try:
-        stdout, _ = runner.run(
-            subp_exec(
-                "docker",
-                "context",
-                "inspect",
-                "--format",
-                "{{.Endpoints.docker.Host}}",
-                collect=True,
-            )
-        )
-    except (click.exceptions.Exit, OSError):
-        return None
-    host = (stdout or "").strip()
-    return host if "://" in host else None
-
-
 def _docker_argv(docker_config_dir: str | None) -> tuple[str, ...]:
    if docker_config_dir is None:
        return ("docker",)
@@ -1259,13 +1238,17 @@ def _push_image(
    runner: CommandRunner,
    image: str,
    *,
-    docker: tuple[str, ...],
+    docker_config_dir: str | None,
    verbose: bool,
 ) -> None:
    for attempt in range(1, _PUSH_ATTEMPTS + 1):
        try:
            with Progress(message="Pushing...", elapsed=not verbose):
-                runner.run(subp_exec(*docker, "push", image, verbose=verbose))
+                runner.run(
+                    subp_exec(
+                        *_docker_argv(docker_config_dir), "push", image, verbose=verbose
+                    )
+                )
            return
        except click.exceptions.Exit:
            if attempt == _PUSH_ATTEMPTS:
@@ -1334,27 +1317,21 @@ def _run_local_build(
            raise click.ClickException(
                "Push token response missing token or registry_url"
            )
-        username = push_data.get("username") or _DEFAULT_REGISTRY_USERNAME
        step += 1

-        if push_data.get("repository_url"):
-            # The control plane chose the exact repository (an ECR repository
-            # is a single image name, so nothing may be appended to it).
-            repository = _strip_url_scheme(push_data["repository_url"])
-        else:
-            repo_seed = image_name or name or spec.config.parent.name
-            repository = (
-                f"{_strip_url_scheme(registry_url)}/{normalize_name(repo_seed)}"
+        normalized_registry = registry_url.rstrip("/")
+        if "://" in normalized_registry:
+            normalized_registry = normalized_registry.split("//", 1)[1]
+        repo_seed = image_name or name or spec.config.parent.name
+        remote_image = str(
+            ImageReference(
+                f"{normalized_registry}/{normalize_name(repo_seed)}",
+                tag,
            )
-        remote_image = str(ImageReference(repository, tag))
-        registry_host = repository.split("/")[0]
+        )
+        registry_host = normalized_registry.split("/")[0]

-        with _docker_config_for_token(registry_host, deployment_token, username) as cfg:
-            # A config directory has no current context, so Docker would fall
-            # back to /var/run/docker.sock; keep using the daemon the build used.
-            docker_host = _active_docker_host(runner)
-            host_args = ("--host", docker_host) if docker_host else ()
-            docker = (*_docker_argv(cfg), *host_args)
+        with _docker_config_for_token(registry_host, deployment_token) as cfg:
            _log_deploy_step(step, f"Logging into {registry_host}")
            token_input = (
                deployment_token
@@ -1363,10 +1340,10 @@ def _run_local_build(
            )
            runner.run(
                subp_exec(
-                    *docker,
+                    *_docker_argv(cfg),
                    "login",
                    "-u",
-                    username,
+                    "oauth2accesstoken",
                    "--password-stdin",
                    registry_host,
                    input=token_input,
@@ -1379,7 +1356,7 @@ def _run_local_build(
            runner.run(
                subp_exec("docker", "tag", image_to_push, remote_image, verbose=verbose)
            )
-            _push_image(runner, remote_image, docker=docker, verbose=verbose)
+            _push_image(runner, remote_image, docker_config_dir=cfg, verbose=verbose)
        step += 1

        resolved_image = _resolve_pushed_image_digest(
@@ -1433,9 +1410,7 @@ def _run_remote_build(
        step += 1

        _log_deploy_step(step, "Uploading source")
-        _upload_source_tarball(
-            signed_url, archive_path, file_size, upload_data.get("upload_headers")
-        )
+        _upload_to_gcs(signed_url, archive_path, file_size)
    step += 1

    _log_deploy_step(step, "Triggering remote build")
@@ -1552,14 +1527,6 @@ def _resolve_or_create(
            secrets=ctx.secrets,
        )
    except HostBackendError as err:
-        if err.status_code == 400 and err.detail == (
-            "Scale to zero deployments are not supported in AWS environments"
-        ):
-            raise HostBackendError(
-                f"{err.message}\nUse --deployment-type dev instead.",
-                status_code=err.status_code,
-                detail=err.detail,
-            ) from None
        if _needs_a_listener(err):
            raise ListenerRequiredError(
                "The image has to come from a registry you manage, so re-run with "
@@ -1680,72 +1647,10 @@ class PublishedImage:
 ImageSource = BuildAndPush | PublishedImage


-def _resource_spec(image_pull_secrets: tuple[str, ...]) -> Mapping[str, object]:
-    if not image_pull_secrets:
-        return _OPERATOR_DEFAULT_RESOURCE_SPEC
-    return {
-        "image_pull_secrets": [{"name": name} for name in image_pull_secrets],
-    }
-
-
-# Mirrors the control plane's own LocalObjectReference.name validation (a
-# Kubernetes DNS subdomain), so a bad secret name is rejected here instead of
-# after a build and push.
-_K8S_SECRET_NAME_RE = re.compile(
-    r"^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$"
-)
-
-
-@dataclass(frozen=True, slots=True)
-class CreateOnlySettings:
-    """Options for an external-image deployment that only apply when
-    creating one, never when updating an existing deployment."""
-
-    placement: RequestedPlacement
-    image_pull_secrets: tuple[str, ...] = ()
-
-    def __post_init__(self) -> None:
-        for name in self.image_pull_secrets:
-            if len(name) > 253 or not _K8S_SECRET_NAME_RE.match(name):
-                raise click.UsageError(
-                    f"--image-pull-secret {name!r} is not a valid Kubernetes "
-                    "secret name (lowercase alphanumeric characters, '-', or "
-                    "'.' only, max 253 characters)."
-                )
-
-    @property
-    def requested(self) -> bool:
-        return self.placement.requested or bool(self.image_pull_secrets)
-
-    def ensure_creatable(self, push_to: str | None, image_uri: str | None) -> None:
-        if push_to is None and image_uri is None and self.requested:
-            raise click.UsageError(
-                "--listener-id, --k8s-namespace, and --image-pull-secret only "
-                "apply when creating a deployment with --push-to or --image-uri."
-            )
-
-    def ensure_not_existing(self, deployment_id: str) -> None:
-        if self.placement.requested:
-            raise click.UsageError(
-                "Listener and namespace are fixed when a deployment is "
-                f"created. Deployment {deployment_id} already exists, so "
-                "drop --listener-id and --k8s-namespace, or create a new "
-                "deployment with a different --name."
-            )
-        if self.image_pull_secrets:
-            raise click.UsageError(
-                "langgraph deploy does not update image pull secrets on an "
-                f"existing deployment. Deployment {deployment_id} already "
-                "exists, so drop --image-pull-secret and update resource_spec "
-                "through the API or the LangSmith UI instead, or create a "
-                "new deployment with a different --name."
-            )
-
-
@dataclass(frozen=True, slots=True)
 class CustomerRegistrySource:
    image: ImageSource
-    create_only: CreateOnlySettings
+    requested_placement: RequestedPlacement

    def run(self, ctx: DeployContext) -> DeployOutcome:
        if isinstance(ctx.selector, ById):
@@ -1767,7 +1672,7 @@ class CustomerRegistrySource:
        self, ctx: DeployContext, existing: ExistingDeployment, step: int
    ) -> DeployOutcome:
        _ensure_customer_registry_source(existing)
-        self.create_only.ensure_not_existing(existing.id)
+        self.requested_placement.ensure_not_requested(existing.id)
        image_uri, step = self._publish(ctx, step)
        _log_deploy_step(step, f"Updating deployment {existing.id}")
        updated = ctx.client.update_deployment(
@@ -1782,7 +1687,7 @@ class CustomerRegistrySource:
        )

    def _resolve_placement(self, ctx: DeployContext) -> Placement:
-        requested = self.create_only.placement
+        requested = self.requested_placement
        if requested.listener_id is not None:
            return requested.on(_requested_listener(ctx.client, requested.listener_id))
        if not (ctx.endpoints.is_cloud or requested.requested):
@@ -1811,9 +1716,7 @@ class CustomerRegistrySource:
                else None,
                source=_CUSTOMER_REGISTRY_SOURCE,
                source_config={
-                    "resource_spec": _resource_spec(
-                        self.create_only.image_pull_secrets
-                    ),
+                    "resource_spec": _OPERATOR_DEFAULT_RESOURCE_SPEC,
                    **placement.source_config(),
                },
                source_revision_config={"image_uri": image_uri},
@@ -1854,7 +1757,7 @@ class CustomerRegistrySource:
                _build_image(runner, ctx.spec, image, verbose=ctx.verbose)
            step += 1
            _log_deploy_step(step, f"Pushing image {image}")
-            _push_image(runner, image, docker=_docker_argv(None), verbose=ctx.verbose)
+            _push_image(runner, image, docker_config_dir=None, verbose=ctx.verbose)
            step += 1
            digest = _resolve_pushed_image_digest(
                runner, remote_image=image, docker_config_dir=None, verbose=ctx.verbose
@@ -1907,13 +1810,19 @@ def _select_source(
    tag: str | None,
    remote_build_flag: bool | None,
    placement: RequestedPlacement,
-    image_pull_secrets: tuple[str, ...],
    selector: DeploymentSelector,
 ) -> DeploymentSource:
-    create_only = CreateOnlySettings(placement, image_pull_secrets)
-    create_only.ensure_creatable(push_to, image_uri)
-    if create_only.requested and isinstance(selector, ById):
-        create_only.ensure_not_existing(selector.deployment_id)
+    if push_to is None and image_uri is None and placement.requested:
+        raise click.UsageError(
+            "--listener-id and --k8s-namespace only apply when creating a "
+            "deployment with --push-to or --image-uri."
+        )
+    if placement.requested and isinstance(selector, ById):
+        raise click.UsageError(
+            "Listener and namespace are fixed when a deployment is created, so "
+            "they cannot be set for an existing --deployment-id. Drop them, or "
+            "create a new deployment with --name."
+        )
    if image_uri is not None:
        if push_to is not None:
            raise click.UsageError("--image-uri cannot be combined with --push-to.")
@@ -1925,7 +1834,7 @@ def _select_source(
            raise click.UsageError("--image-uri cannot be combined with --remote.")
        return CustomerRegistrySource(
            image=PublishedImage(_validate_image_uri(image_uri)),
-            create_only=create_only,
+            requested_placement=placement,
        )
    if push_to is not None:
        if remote_build_flag is True:
@@ -1935,7 +1844,7 @@ def _select_source(
            _require_local_docker()
        return CustomerRegistrySource(
            image=BuildAndPush(reference=reference, prebuilt_image=image),
-            create_only=create_only,
+            requested_placement=placement,
        )
    if image and remote_build_flag is True:
        raise click.UsageError("--image cannot be combined with --remote builds.")
@@ -1965,10 +1874,7 @@ def _create_host_backend_client(
    host_url: str | None,
    api_key: str | None,
    env_vars: dict[str, str] | None = None,
-    *,
-    no_input: bool | None = None,
 ) -> HostBackendClient:
-    effective_no_input = _no_input if no_input is None else no_input
    if env_vars is None:
        env_vars = _parse_env_from_config({}, pathlib.Path.cwd() / DEFAULT_CONFIG)
    resolved_api_key = api_key
@@ -1983,7 +1889,7 @@ def _create_host_backend_client(
                resolved_api_key = val
                break
    if not resolved_api_key:
-        if effective_no_input:
+        if _no_input:
            raise click.ClickException(
                "No LangSmith API key found. Set LANGSMITH_API_KEY in the "
                "environment or .env file."
@@ -2008,8 +1914,6 @@ def _create_host_backend_client(
 def _call_host_backend_with_optional_tenant(
    client: HostBackendClient,
    operation: Callable[[HostBackendClient], _T],
-    *,
-    no_input: bool | None = None,
 ) -> _T:
    """Run *operation*, prompting for a workspace ID on org-scoped 403s.

@@ -2018,7 +1922,6 @@ def _call_host_backend_with_optional_tenant(
    in-place so all subsequent calls through the same instance are
    tenant-aware.
    """
-    effective_no_input = _no_input if no_input is None else no_input
    prompted_for_tenant = False

    while True:
@@ -2030,7 +1933,7 @@ def _call_host_backend_with_optional_tenant(
                and err.status_code == 403
                and "requires workspace specification" in err.message
            ):
-                if effective_no_input:
+                if _no_input:
                    raise click.ClickException(
                        "API key is org-scoped and requires a workspace ID. "
                        "Set LANGSMITH_TENANT_ID in your .env file or "
@@ -2213,13 +2116,11 @@ def _deploy_base_options(
            ),
            click.option(
                "--deployment-type",
-                type=click.Choice(["serverless", "dedicated", "dev", "prod"]),
-                default="serverless",
+                type=click.Choice(["dev", "prod"]),
+                default="dev",
                show_default=True,
                help=(
-                    "Deployment type (used when creating a new deployment): "
-                    "serverless (scale to zero) or dedicated (prod); "
-                    "legacy dev and prod are also accepted. "
+                    "Deployment type (used when creating a new deployment). "
                    "Ignored with --push-to."
                ),
            ),
@@ -2281,18 +2182,6 @@ def _deploy_base_options(
                    "creating a deployment with --push-to or --image-uri."
                ),
            ),
-            click.option(
-                "--image-pull-secret",
-                "image_pull_secrets",
-                multiple=True,
-                help=(
-                    "Name of a Kubernetes secret (type kubernetes.io/"
-                    "dockerconfigjson) in the deployment's namespace to use for "
-                    "pulling the image from a private registry. Repeat to give "
-                    "more than one. Only used when creating a deployment with "
-                    "--push-to or --image-uri."
-                ),
-            ),
            click.option(
                "--config",
                "-c",
@@ -2406,7 +2295,6 @@ def _deploy_cmd(
    image_uri: str | None,
    listener_id: str | None,
    k8s_namespace: str | None,
-    image_pull_secrets: tuple[str, ...],
    tag: str | None,
    base_image: str | None,
    install_command: str | None,
@@ -2431,6 +2319,7 @@ def _deploy_cmd(
    validate_deploy_commands(install_command, build_command)
    agent = None
    if agent_id is not None or environment is not None:
+        em.note("Note: --agent-id and --agent-environment flags are in private beta")
        if not agent_id or not agent_id.strip() or not environment:
            raise click.UsageError(
                "--agent-id and --agent-environment are required together."
@@ -2482,7 +2371,6 @@ def _deploy_cmd(
        tag=tag,
        remote_build_flag=remote_build_flag,
        placement=RequestedPlacement(listener_id, k8s_namespace),
-        image_pull_secrets=image_pull_secrets,
        selector=selector,
    )

@@ -2509,9 +2397,7 @@ def _deploy_cmd(
            ),
            verbose=verbose,
            selector=selector,
-            deployment_type={"serverless": "dev_zero", "dedicated": "prod"}.get(
-                deployment_type, deployment_type
-            ),
+            deployment_type=deployment_type,
            secrets=secrets,
            tracked_packages=tracked_packages,
        )
@@ -2585,13 +2471,6 @@ def _deploy_cmd(
    default="",
    help="Only show deployments whose names contain this value.",
 )
-@click.option(
-    "--json",
-    "json_output",
-    is_flag=True,
-    default=False,
-    help="Print the deployments as a JSON array of {id, name} instead of a table.",
-)
@deploy.command("list", help="[Beta] List LangSmith Deployments.")
 def deploy_list(
    api_key: str | None,
@@ -2599,13 +2478,11 @@ def deploy_list(
    name_contains: str,
    agent_id: str | None,
    environment: str | None,
-    json_output: bool,
 ) -> None:
    if agent_id is not None or environment is not None:
        click.secho(
            "Note: --agent-id and --agent-environment flags are in private beta",
            fg="yellow",
-            err=True,
        )
    if agent_id is not None and not agent_id.strip():
        raise click.UsageError("--agent-id must not be empty.")
@@ -2614,19 +2491,15 @@ def deploy_list(
        filters["agent_id"] = agent_id
    if environment is not None:
        filters["agent_environment"] = environment
-    client = _create_host_backend_client(host_url, api_key, no_input=json_output)
-    resources = _call_host_backend_with_optional_tenant(
+    client = _create_host_backend_client(host_url, api_key)
+    deployments = _call_host_backend_with_optional_tenant(
        client,
        lambda c: c.list_deployments(name_contains=name_contains, **filters),
-        no_input=json_output,
    )
-    deployments = [DeploymentRow.from_resource(resource) for resource in resources]
-    if json_output:
-        click.echo(json_mod.dumps([deployment.as_json() for deployment in deployments]))
-    elif not deployments:
+    if not deployments:
        click.echo("No deployments found.")
-    else:
-        click.echo(DEPLOYMENTS_TABLE.render(deployments))
+        return
+    click.echo(format_deployments_table(deployments))


 # ---------------------------------------------------------------------------
@@ -2645,13 +2518,6 @@ def deploy_listeners() -> None:

@OPT_HOST_API_KEY
@OPT_HOST_URL
-@click.option(
-    "--json",
-    "json_output",
-    is_flag=True,
-    default=False,
-    help="Emit the listeners as a JSON array instead of a table.",
-)
@deploy_listeners.command(
    "list",
    help=(
@@ -2660,23 +2526,15 @@ def deploy_listeners() -> None:
        "--listener-id <id>` to deploy through it."
    ),
 )
-def deploy_listeners_list(
-    api_key: str | None, host_url: str | None, json_output: bool
-) -> None:
-    client = _create_host_backend_client(host_url, api_key, no_input=json_output)
+def deploy_listeners_list(api_key: str | None, host_url: str | None) -> None:
+    client = _create_host_backend_client(host_url, api_key)
    listeners = _call_host_backend_with_optional_tenant(
-        client, lambda c: c.list_listeners(), no_input=json_output
+        client, lambda c: c.list_listeners()
    )
-    if json_output:
-        click.echo(json_mod.dumps(listeners))
-    elif not listeners:
+    if not listeners:
        click.echo("No listeners found for this workspace.")
-    else:
-        click.echo(
-            LISTENERS_TABLE.render(
-                [Listener.from_resource(listener) for listener in listeners]
-            )
-        )
+        return
+    click.echo(format_listeners_table(listeners))


 # ---------------------------------------------------------------------------
@@ -2719,7 +2577,7 @@ def deploy_revisions_list(
    if not revisions:
        click.echo(f"No revisions found for deployment {deployment_id}.")
        return
-    click.echo(REVISIONS_TABLE.render(_with_replaced_status(revisions)))
+    click.echo(format_revisions_table(revisions))


 # ---------------------------------------------------------------------------
@@ -44,8 +44,11 @@ async def subp_exec(
    on_stdout: Callable[[str], bool | None] | None = None,
 ) -> tuple[str | None, str | None]:
    if verbose:
-        # Never echo stdin: it can carry secrets (docker login --password-stdin).
-        print(f"+ {cmd} {' '.join(map(str, args))}")
+        cmd_str = f"+ {cmd} {' '.join(map(str, args))}"
+        if input:
+            print(cmd_str, " <\n", "\n".join(filter(None, input.splitlines())), sep="")
+        else:
+            print(cmd_str)
    if wait:
        await asyncio.sleep(wait)

@@ -2,7 +2,6 @@

 from __future__ import annotations

-from collections.abc import Mapping
 from dataclasses import dataclass
 from typing import Any, Literal
 from urllib.parse import urlparse
@@ -221,51 +220,27 @@ class HostBackendClient:
        *,
        name: str | None = None,
        name_contains: str | None = None,
+        limit: int | None = None,
        agent_id: str | None = None,
        agent_environment: str | None = None,
-    ) -> list[dict[str, object]]:
+    ) -> list[dict[str, Any]]:
        given = (
            ("name", name),
            ("name_contains", name_contains),
+            ("limit", limit),
            ("agent_id", agent_id),
            ("agent_environment", agent_environment),
        )
-        filters = {key: value for key, value in given if value is not None}
-        return self._every_page("/v2/deployments", filters)
-
-    def _every_page(
-        self, path: str, filters: Mapping[str, object]
-    ) -> list[dict[str, object]]:
-        resources: list[dict[str, object]] = []
-        seen_ids: set[object] = set()
-        while True:
-            page = _resources(
-                self._request(
-                    "GET",
-                    path,
-                    params={
-                        **filters,
-                        "limit": MAX_PAGE_SIZE,
-                        "offset": len(resources),
-                    },
-                )
-            )
-            page_ids = {resource.get("id") for resource in page}
-            if page_ids and page_ids <= seen_ids:
-                raise HostBackendError(
-                    f"GET {path} returned the same resources again: this control "
-                    "plane ignores 'offset', so the CLI cannot read past the first page."
-                )
-            seen_ids |= page_ids
-            resources.extend(page)
-            if len(page) < MAX_PAGE_SIZE:
-                return resources
+        params = {key: value for key, value in given if value is not None}
+        return _resources(self._request("GET", "/v2/deployments", params=params))

    def get_listener(self, listener_id: str) -> dict[str, Any]:
        return self._request("GET", f"/v2/listeners/{listener_id}")

-    def list_listeners(self) -> list[dict[str, object]]:
-        return self._every_page("/v2/listeners", {})
+    def list_listeners(self) -> list[dict[str, Any]]:
+        return _resources(
+            self._request("GET", "/v2/listeners", params={"limit": MAX_PAGE_SIZE})
+        )

    def get_deployment(self, deployment_id: str) -> dict[str, Any]:
        return self._request("GET", f"/v2/deployments/{deployment_id}")
@@ -274,22 +249,16 @@ class HostBackendClient:
        return self._request("DELETE", f"/v2/deployments/{deployment_id}")

    def request_push_token(self, deployment_id: str) -> dict[str, Any]:
-        # Tells the control plane this client logs in with the returned
-        # `username` and pushes to `repository_url`. LangSmith AWS requires it.
        return self._request(
            "POST",
            f"/v2/deployments/{deployment_id}/push-token",
-            {"supports_registry_username": True},
        )

    def request_upload_url(self, deployment_id: str) -> dict[str, Any]:
-        """Get a signed URL for uploading the source tarball."""
-        # Tells the control plane this client sends the returned
-        # `upload_headers` with its upload, which some storage requires.
+        """Get a signed GCS URL for uploading the source tarball."""
        return self._request(
            "POST",
            f"/v2/deployments/{deployment_id}/upload-url",
-            {"supports_upload_headers": True},
        )

    def update_deployment(
@@ -373,27 +373,6 @@ class EncryptionConfig(TypedDict, total=False):
    """


-class PriorityConfig(TypedDict, total=False):
-    """Configuration for custom run priority logic.
-
-    Allows you to decide each thread's priority settings with a Python function
-    that the server calls at the first run on a thread with no settings, which
-    can come long after the thread was created."""
-
-    path: str
-    """Required. Path to an instance of the Priority() class that registers an assign function.
-
-    Format: "path/to/file.py:my_priority"
-
-    Example:
-        {
-            "priority": {
-                "path": "./priority.py:my_priority"
-            }
-        }
-    """
-
-
 class CorsConfig(TypedDict, total=False):
    """Specifies Cross-Origin Resource Sharing (CORS) rules for your server.

@@ -774,13 +753,6 @@ class Config(TypedDict, total=False):
    Allows you to implement custom encryption for sensitive data stored in the database.
    """

-    priority: PriorityConfig | None
-    """Optional. Custom run priority config, including the path to your Python priority logic.
-
-    Allows you to decide each thread's priority settings at the first run on a thread with no settings,
-    which can come long after the thread was created.
-    """
-
    http: HttpConfig | None
    """Optional. Configuration for the built-in HTTP server, controlling which custom routes are exposed
    and how cross-origin requests are handled.
@@ -812,7 +784,6 @@ __all__ = [
    "CheckpointerConfig",
    "AuthConfig",
    "EncryptionConfig",
-    "PriorityConfig",
    "HttpConfig",
    "MiddlewareOrders",
    "Distros",
@@ -910,7 +910,6 @@ def python_config_to_docker_uv_lock(
    for section, key in [
        ("auth", "path"),
        ("encryption", "path"),
-        ("priority", "path"),
        ("checkpointer", "path"),
        ("http", "app"),
    ]:
@@ -196,17 +196,6 @@
                }
              ]
            },
-            "priority": {
-              "anyOf": [
-                {
-                  "$ref": "#/$defs/PriorityConfig"
-                },
-                {
-                  "type": "null"
-                }
-              ],
-              "description": "Optional. Custom run priority config, including the path to your Python priority logic.\n\nAllows you to decide each thread's priority settings at the first run on a thread with no settings,\nwhich can come long after the thread was created.\n"
-            },
            "source": {
              "anyOf": [
                {
@@ -449,17 +438,6 @@
                }
              ]
            },
-            "priority": {
-              "anyOf": [
-                {
-                  "$ref": "#/$defs/PriorityConfig"
-                },
-                {
-                  "type": "null"
-                }
-              ],
-              "description": "Optional. Custom run priority config, including the path to your Python priority logic.\n\nAllows you to decide each thread's priority settings at the first run on a thread with no settings,\nwhich can come long after the thread was created.\n"
-            },
            "source": {
              "$ref": "#/$defs/UvSource"
            },
@@ -688,17 +666,6 @@
                }
              ]
            },
-            "priority": {
-              "anyOf": [
-                {
-                  "$ref": "#/$defs/PriorityConfig"
-                },
-                {
-                  "type": "null"
-                }
-              ],
-              "description": "Optional. Custom run priority config, including the path to your Python priority logic.\n\nAllows you to decide each thread's priority settings at the first run on a thread with no settings,\nwhich can come long after the thread was created.\n"
-            },
            "source": {
              "anyOf": [
                {
@@ -1203,18 +1170,6 @@
      },
      "required": []
    },
-    "PriorityConfig": {
-      "title": "PriorityConfig",
-      "description": "Configuration for custom run priority logic.\n\nAllows you to decide each thread's priority settings with a Python function\nthat the server calls at the first run on a thread with no settings, which\ncan come long after the thread was created.",
-      "type": "object",
-      "properties": {
-        "path": {
-          "type": "string",
-          "description": "Required. Path to an instance of the Priority() class that registers an assign function.\n"
-        }
-      },
-      "required": []
-    },
    "UvSource": {
      "title": "UvSource",
      "description": "Deployment source rooted at a uv project or workspace.",
@@ -196,17 +196,6 @@
                }
              ]
            },
-            "priority": {
-              "anyOf": [
-                {
-                  "$ref": "#/$defs/PriorityConfig"
-                },
-                {
-                  "type": "null"
-                }
-              ],
-              "description": "Optional. Custom run priority config, including the path to your Python priority logic.\n\nAllows you to decide each thread's priority settings at the first run on a thread with no settings,\nwhich can come long after the thread was created.\n"
-            },
            "source": {
              "anyOf": [
                {
@@ -449,17 +438,6 @@
                }
              ]
            },
-            "priority": {
-              "anyOf": [
-                {
-                  "$ref": "#/$defs/PriorityConfig"
-                },
-                {
-                  "type": "null"
-                }
-              ],
-              "description": "Optional. Custom run priority config, including the path to your Python priority logic.\n\nAllows you to decide each thread's priority settings at the first run on a thread with no settings,\nwhich can come long after the thread was created.\n"
-            },
            "source": {
              "$ref": "#/$defs/UvSource"
            },
@@ -688,17 +666,6 @@
                }
              ]
            },
-            "priority": {
-              "anyOf": [
-                {
-                  "$ref": "#/$defs/PriorityConfig"
-                },
-                {
-                  "type": "null"
-                }
-              ],
-              "description": "Optional. Custom run priority config, including the path to your Python priority logic.\n\nAllows you to decide each thread's priority settings at the first run on a thread with no settings,\nwhich can come long after the thread was created.\n"
-            },
            "source": {
              "anyOf": [
                {
@@ -1203,18 +1170,6 @@
      },
      "required": []
    },
-    "PriorityConfig": {
-      "title": "PriorityConfig",
-      "description": "Configuration for custom run priority logic.\n\nAllows you to decide each thread's priority settings with a Python function\nthat the server calls at the first run on a thread with no settings, which\ncan come long after the thread was created.",
-      "type": "object",
-      "properties": {
-        "path": {
-          "type": "string",
-          "description": "Required. Path to an instance of the Priority() class that registers an assign function.\n"
-        }
-      },
-      "required": []
-    },
    "UvSource": {
      "title": "UvSource",
      "description": "Deployment source rooted at a uv project or workspace.",
@@ -2,12 +2,10 @@ import json
 import pathlib
 import re
 import shutil
-import sys
 import tempfile
 import textwrap
 from contextlib import contextmanager
 from pathlib import Path
-from unittest.mock import MagicMock

 import click
 from click.testing import CliRunner
@@ -16,7 +14,6 @@ import langgraph_cli.deploy as deploy_module
 from langgraph_cli.cli import cli, prepare_args_and_stdin
 from langgraph_cli.config import Config, _get_pip_cleanup_lines, validate_config
 from langgraph_cli.docker import DEFAULT_POSTGRES_URI, DockerCapabilities, Version
-from langgraph_cli.host_backend import HostBackendError
 from langgraph_cli.util import clean_empty_lines

 FORMATTED_CLEANUP_LINES = _get_pip_cleanup_lines(
@@ -373,32 +370,6 @@ def test_dev_command_requires_ssl_certfile_and_keyfile_together(tmp_path) -> Non
    assert "Both --ssl-certfile and --ssl-keyfile must be provided" in result.output


-def test_dev_command_passes_priority_to_the_server(tmp_path, monkeypatch) -> None:
-    config_path = tmp_path / "langgraph.json"
-    config_path.write_text(
-        json.dumps(
-            {
-                "dependencies": ["."],
-                "graphs": {"agent": "./agent.py:graph"},
-                "priority": {"path": "./priority.py:priority"},
-            }
-        ),
-        encoding="utf-8",
-    )
-    # The test environment doesn't install langgraph-api, so stand in for its server.
-    server = MagicMock()
-    monkeypatch.setitem(sys.modules, "langgraph_api.cli", server)
-    # dev appends the working directory and its dependencies to sys.path.
-    monkeypatch.setattr(sys, "path", list(sys.path))
-
-    result = CliRunner().invoke(cli, ["dev", "--config", str(config_path)])
-
-    assert result.exit_code == 0, result.output
-    assert server.run_server.call_args.kwargs["priority"] == {
-        "path": "./priority.py:priority"
-    }
-
-
 def test_deploy_list_command(monkeypatch) -> None:
    runner = CliRunner()
    captured: dict[str, str] = {}
@@ -482,177 +453,6 @@ def test_deploy_list_command_no_results(monkeypatch) -> None:
    assert result.output.strip() == "No deployments found."


-def test_deploy_list_prints_an_aligned_table(monkeypatch) -> None:
-    class FakeClient:
-        def __init__(self, host_url: str, api_key: str, tenant_id: str | None = None):
-            pass
-
-        def list_deployments(self, name_contains: str = ""):
-            return [
-                {
-                    "id": "dep-123",
-                    "name": "alpha",
-                    "source_config": {"custom_url": "https://alpha.example.com"},
-                },
-                {"id": "dep-4567", "name": "beta-agent", "source_config": {}},
-            ]
-
-    monkeypatch.setattr(deploy_module, "HostBackendClient", FakeClient)
-
-    result = CliRunner().invoke(
-        cli,
-        [
-            "deploy",
-            "list",
-            "--api-key",
-            "test-key",
-            "--host-url",
-            "https://api.example.com",
-        ],
-    )
-
-    assert result.exit_code == 0, result.output
-    assert result.output.splitlines() == [
-        "Deployment ID  Deployment Name  Deployment URL           ",
-        "-------------  ---------------  -------------------------",
-        "dep-123        alpha            https://alpha.example.com",
-        "dep-4567       beta-agent       -                        ",
-    ]
-
-
-def _deploy_list_json(
-    monkeypatch, deployments: list[dict], *extra_args: str
-) -> click.testing.Result:
-    class FakeClient:
-        def __init__(self, host_url: str, api_key: str, tenant_id: str | None = None):
-            pass
-
-        def list_deployments(
-            self,
-            name_contains: str = "",
-            agent_id: str | None = None,
-            agent_environment: str | None = None,
-        ):
-            return deployments
-
-    monkeypatch.setattr(deploy_module, "HostBackendClient", FakeClient)
-    return CliRunner().invoke(
-        cli,
-        [
-            "deploy",
-            "list",
-            "--json",
-            "--api-key",
-            "test-key",
-            "--host-url",
-            "https://api.example.com",
-            *extra_args,
-        ],
-    )
-
-
-def test_deploy_list_command_json(monkeypatch) -> None:
-    result = _deploy_list_json(
-        monkeypatch,
-        [
-            {
-                "id": "dep-123",
-                "name": "alpha",
-                "source_config": {"custom_url": "https://alpha.example.com"},
-            },
-            {"id": "dep-456", "name": "beta", "source_config": {}},
-        ],
-    )
-
-    assert result.exit_code == 0, result.output
-    assert json.loads(result.stdout) == [
-        {"id": "dep-123", "name": "alpha"},
-        {"id": "dep-456", "name": "beta"},
-    ]
-
-
-def test_deploy_list_json_never_prints_deployment_secrets(monkeypatch) -> None:
-    result = _deploy_list_json(
-        monkeypatch,
-        [
-            {
-                "id": "dep-123",
-                "name": "alpha",
-                "source_config": {"custom_url": None},
-                "secrets": [{"name": "OPENAI_API_KEY", "value": "sk-plain-value"}],
-            }
-        ],
-    )
-
-    assert result.exit_code == 0, result.output
-    assert "sk-plain-value" not in result.output
-    assert json.loads(result.stdout) == [{"id": "dep-123", "name": "alpha"}]
-
-
-def test_deploy_list_command_json_no_results(monkeypatch) -> None:
-    result = _deploy_list_json(monkeypatch, [])
-
-    assert result.exit_code == 0, result.output
-    assert json.loads(result.stdout) == []
-
-
-def test_deploy_list_rejects_a_deployment_without_an_id(monkeypatch) -> None:
-    result = _deploy_list_json(monkeypatch, [{"name": "alpha"}])
-
-    assert result.exit_code != 0
-    assert "deployment without an id" in result.output
-
-
-def test_deploy_list_json_keeps_the_agent_note_off_stdout(monkeypatch) -> None:
-    result = _deploy_list_json(
-        monkeypatch,
-        [{"id": "dep-123", "name": "alpha"}],
-        "--agent-id",
-        "customer-support",
-        "--agent-environment",
-        "staging",
-    )
-
-    assert result.exit_code == 0, result.output
-    assert json.loads(result.stdout) == [{"id": "dep-123", "name": "alpha"}]
-    assert "private beta" in result.stderr
-
-
-def test_deploy_list_json_never_prompts_for_a_workspace(monkeypatch) -> None:
-    class FakeClient:
-        def __init__(self, host_url: str, api_key: str, tenant_id: str | None = None):
-            pass
-
-        def list_deployments(self, name_contains: str = ""):
-            raise HostBackendError("requires workspace specification", status_code=403)
-
-        def set_tenant(self, tenant_id: str) -> None:
-            raise AssertionError("must not retry with a prompted tenant with --json")
-
-    monkeypatch.setattr(deploy_module, "HostBackendClient", FakeClient)
-    prompt_calls = []
-    monkeypatch.setattr(
-        click, "prompt", lambda *a, **k: prompt_calls.append((a, k)) or "unreachable"
-    )
-
-    result = CliRunner().invoke(
-        cli,
-        [
-            "deploy",
-            "list",
-            "--json",
-            "--api-key",
-            "test-key",
-            "--host-url",
-            "https://api.example.com",
-        ],
-    )
-
-    assert prompt_calls == []
-    assert result.exit_code != 0
-    assert "LANGSMITH_TENANT_ID" in result.output
-
-
 def test_deploy_listeners_list_command(monkeypatch) -> None:
    runner = CliRunner()
    captured: dict[str, str] = {}
@@ -735,199 +535,6 @@ def test_deploy_listeners_list_command_no_results(monkeypatch) -> None:
    assert result.output.strip() == "No listeners found for this workspace."


-def test_deploy_listeners_list_prints_an_aligned_table(monkeypatch) -> None:
-    class FakeClient:
-        def __init__(self, host_url: str, api_key: str, tenant_id: str | None = None):
-            pass
-
-        def list_listeners(self):
-            return [
-                {
-                    "id": "listener-1",
-                    "compute_id": "prod-cluster",
-                    "compute_config": {"k8s_namespaces": ["agents"]},
-                },
-                {
-                    "id": "listener-22",
-                    "compute_id": "multi",
-                    "compute_config": {"k8s_namespaces": ["agents", "agents-staging"]},
-                },
-                {"id": "listener-3", "compute_id": "", "compute_config": {}},
-                {
-                    "id": "listener-4",
-                    "compute_id": None,
-                    "compute_config": {"k8s_namespaces": ["agents"]},
-                },
-            ]
-
-    monkeypatch.setattr(deploy_module, "HostBackendClient", FakeClient)
-
-    result = CliRunner().invoke(
-        cli,
-        [
-            "deploy",
-            "listeners",
-            "list",
-            "--api-key",
-            "test-key",
-            "--host-url",
-            "https://api.example.com",
-        ],
-    )
-
-    assert result.exit_code == 0, result.output
-    assert result.output.splitlines() == [
-        "Listener ID  Compute ID    Namespaces            ",
-        "-----------  ------------  ----------------------",
-        "listener-1   prod-cluster  agents                ",
-        "listener-22  multi         agents, agents-staging",
-        "listener-3   -             -                     ",
-        "listener-4   -             agents                ",
-    ]
-
-
-def test_deploy_listeners_list_rejects_a_listener_without_an_id(monkeypatch) -> None:
-    class FakeClient:
-        def __init__(self, host_url: str, api_key: str, tenant_id: str | None = None):
-            pass
-
-        def list_listeners(self):
-            return [{"compute_id": "prod-cluster"}]
-
-    monkeypatch.setattr(deploy_module, "HostBackendClient", FakeClient)
-
-    result = CliRunner().invoke(
-        cli,
-        [
-            "deploy",
-            "listeners",
-            "list",
-            "--api-key",
-            "test-key",
-            "--host-url",
-            "https://api.example.com",
-        ],
-    )
-
-    assert result.exit_code != 0
-    assert "listener without an id" in result.output
-
-
-def test_deploy_listeners_list_command_json(monkeypatch) -> None:
-    runner = CliRunner()
-
-    listeners = [
-        {
-            "id": "listener-1",
-            "compute_id": "prod-cluster",
-            "compute_config": {"k8s_namespaces": ["agents"]},
-        },
-        {
-            "id": "listener-2",
-            "compute_id": "multi-cluster",
-            "compute_config": {"k8s_namespaces": ["agents", "agents-staging"]},
-        },
-    ]
-
-    class FakeClient:
-        def __init__(self, host_url: str, api_key: str, tenant_id: str | None = None):
-            pass
-
-        def list_listeners(self):
-            return listeners
-
-    monkeypatch.setattr(deploy_module, "HostBackendClient", FakeClient)
-
-    result = runner.invoke(
-        cli,
-        [
-            "deploy",
-            "listeners",
-            "list",
-            "--json",
-            "--api-key",
-            "test-key",
-            "--host-url",
-            "https://api.example.com",
-        ],
-    )
-
-    assert result.exit_code == 0, result.output
-    assert json.loads(result.output) == listeners
-
-
-def test_deploy_listeners_list_command_json_no_results(monkeypatch) -> None:
-    runner = CliRunner()
-
-    class FakeClient:
-        def __init__(self, host_url: str, api_key: str, tenant_id: str | None = None):
-            pass
-
-        def list_listeners(self):
-            return []
-
-    monkeypatch.setattr(deploy_module, "HostBackendClient", FakeClient)
-
-    result = runner.invoke(
-        cli,
-        [
-            "deploy",
-            "listeners",
-            "list",
-            "--json",
-            "--api-key",
-            "test-key",
-            "--host-url",
-            "https://api.example.com",
-        ],
-    )
-
-    assert result.exit_code == 0, result.output
-    assert json.loads(result.output) == []
-
-
-def test_deploy_listeners_list_command_json_org_scoped_403(monkeypatch) -> None:
-    """With --json, an org-scoped 403 must raise cleanly instead of
-    prompting for a workspace ID, which would write to stdout and hang
-    waiting for input that a scripted invocation never provides."""
-    runner = CliRunner()
-
-    class FakeClient:
-        def __init__(self, host_url: str, api_key: str, tenant_id: str | None = None):
-            pass
-
-        def list_listeners(self):
-            raise HostBackendError("requires workspace specification", status_code=403)
-
-        def set_tenant(self, tenant_id: str) -> None:
-            raise AssertionError("must not retry with a prompted tenant with --json")
-
-    monkeypatch.setattr(deploy_module, "HostBackendClient", FakeClient)
-
-    prompt_calls = []
-    monkeypatch.setattr(
-        click, "prompt", lambda *a, **k: prompt_calls.append((a, k)) or "unreachable"
-    )
-
-    result = runner.invoke(
-        cli,
-        [
-            "deploy",
-            "listeners",
-            "list",
-            "--json",
-            "--api-key",
-            "test-key",
-            "--host-url",
-            "https://api.example.com",
-        ],
-    )
-
-    assert prompt_calls == [], "must not prompt interactively with --json"
-    assert result.exit_code != 0
-    assert "LANGSMITH_TENANT_ID" in result.output
-
-
 def test_deploy_revisions_list_command(monkeypatch) -> None:
    runner = CliRunner()
    captured: dict[str, str] = {}
@@ -1015,54 +622,6 @@ def test_deploy_revisions_list_command_no_results(monkeypatch) -> None:
    assert result.output.strip() == "No revisions found for deployment dep-123."


-def test_deploy_revisions_list_marks_older_deployed_revisions_as_replaced(
-    monkeypatch,
-) -> None:
-    class FakeClient:
-        def __init__(self, host_url: str, api_key: str, tenant_id: str | None = None):
-            pass
-
-        def list_revisions(self, deployment_id: str, limit: int = 1):
-            return [
-                {
-                    "id": "rev-3",
-                    "status": "DEPLOYING",
-                    "created_at": "2026-10-20T10:00:00Z",
-                },
-                {
-                    "id": "rev-2",
-                    "status": "DEPLOYED",
-                    "created_at": "2026-10-19T10:00:00Z",
-                },
-                {"id": "rev-1", "status": "DEPLOYED", "created_at": None},
-            ]
-
-    monkeypatch.setattr(deploy_module, "HostBackendClient", FakeClient)
-
-    result = CliRunner().invoke(
-        cli,
-        [
-            "deploy",
-            "revisions",
-            "list",
-            "--api-key",
-            "test-key",
-            "--host-url",
-            "https://api.example.com",
-            "dep-123",
-        ],
-    )
-
-    assert result.exit_code == 0, result.output
-    assert result.output.splitlines() == [
-        "Revision ID  Status     Created At          ",
-        "-----------  ---------  --------------------",
-        "rev-3        DEPLOYING  2026-10-20T10:00:00Z",
-        "rev-2        DEPLOYED   2026-10-19T10:00:00Z",
-        "rev-1        REPLACED   -                   ",
-    ]
-
-
 def test_deploy_revisions_list_command_with_explicit_limit(monkeypatch) -> None:
    runner = CliRunner()
    captured: dict[str, str] = {}
@@ -52,8 +52,6 @@ ARCHIVE = ("/tmp/src.tgz", 2048, "langgraph.json")
 OBJECT_PATH = "tarballs/src.tgz"
 PLATFORM_FORMAT = "{{.Os}}/{{.Architecture}}"
 DIGESTS_FORMAT = "{{json .RepoDigests}}"
-CONTEXT_HOST_FORMAT = "{{.Endpoints.docker.Host}}"
-CONTEXT_HOST = "unix:///Users/dev/.docker/run/docker.sock"
 NOT_A_CLI_DEPLOYMENT = (
    "push token is only available for 'internal_docker' source deployments"
 )
@@ -95,8 +93,6 @@ class ControlPlaneDouble:
    timeline: list[str]
    existing_deployments: list[dict] = field(default_factory=list)
    push_token_status: int = 200
-    push_token_extra: dict = field(default_factory=dict)
-    upload_url_extra: dict = field(default_factory=dict)
    create_error: str | None = None
    listeners: list[dict] = field(default_factory=list)
    listeners_by_id: dict[str, dict] = field(default_factory=dict)
@@ -112,11 +108,7 @@ class ControlPlaneDouble:
    def _respond(self, request: httpx.Request) -> httpx.Response:
        method, path = request.method, request.url.path
        if (method, path) == ("GET", "/v2/listeners"):
-            offset = int(request.url.params.get("offset", 0))
-            limit = int(request.url.params.get("limit", 20))
-            return httpx.Response(
-                200, json={"resources": self.listeners[offset : offset + limit]}
-            )
+            return httpx.Response(200, json={"resources": self.listeners})
        if method == "GET" and path.startswith("/v2/listeners/"):
            listener_id = path.rsplit("/", 1)[-1]
            if not _looks_like_a_uuid(listener_id):
@@ -155,21 +147,11 @@ class ControlPlaneDouble:
            if self.push_token_status != 200:
                return httpx.Response(self.push_token_status, text=NOT_A_CLI_DEPLOYMENT)
            return httpx.Response(
-                200,
-                json={
-                    "token": PUSH_TOKEN,
-                    "registry_url": REGISTRY_URL,
-                    **self.push_token_extra,
-                },
+                200, json={"token": PUSH_TOKEN, "registry_url": REGISTRY_URL}
            )
        if path.endswith("/upload-url"):
            return httpx.Response(
-                200,
-                json={
-                    "upload_url": SIGNED_UPLOAD_URL,
-                    "object_path": OBJECT_PATH,
-                    **self.upload_url_extra,
-                },
+                200, json={"upload_url": SIGNED_UPLOAD_URL, "object_path": OBJECT_PATH}
            )
        if method == "PATCH":
            return httpx.Response(200, json={"tenant_id": "tenant-1"})
@@ -204,8 +186,6 @@ class DockerCommand:
 class DockerDouble:
    timeline: list[str]
    failing_pushes: int = 0
-    context_lookup_fails: bool = False
-    context_host: str = CONTEXT_HOST
    builds: list[dict] = field(default_factory=list)
    commands: list[DockerCommand] = field(default_factory=list)

@@ -249,10 +229,6 @@ class DockerDouble:
        if "push" in args and self.failing_pushes > 0:
            self.failing_pushes -= 1
            raise click.exceptions.Exit(1)
-        if CONTEXT_HOST_FORMAT in args:
-            if self.context_lookup_fails:
-                raise click.exceptions.Exit(1)
-            return f"{self.context_host}\n", None
        if PLATFORM_FORMAT in args:
            return "linux/amd64\n", None
        if DIGESTS_FORMAT in args:
@@ -262,8 +238,6 @@ class DockerDouble:

    @staticmethod
    def _verb(args: tuple[str, ...]) -> str:
-        if CONTEXT_HOST_FORMAT in args:
-            return "inspect-context"
        if PLATFORM_FORMAT in args:
            return "inspect-platform"
        if DIGESTS_FORMAT in args:
@@ -286,7 +260,7 @@ class DeployProject:
    control_plane: ControlPlaneDouble
    docker: DockerDouble
    timeline: list[str]
-    uploads: list[tuple[str, str, int, dict[str, str] | None]]
+    uploads: list[tuple[str, str, int]]

    def run(self, *args: str, host_url: str = CONTROL_PLANE_URL) -> Result:
        return CliRunner().invoke(
@@ -312,32 +286,22 @@ def deploy_project(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> DeployPro
        json.dumps({"graphs": {"agent": "agent.py:graph"}, "dependencies": ["."]})
    )
    monkeypatch.chdir(tmp_path)
-    for name in (
-        "LANGSMITH_TENANT_ID",
-        "LANGSMITH_ENDPOINT",
-        "LANGGRAPH_HOST_URL",
-        "DOCKER_HOST",
-    ):
+    for name in ("LANGSMITH_TENANT_ID", "LANGSMITH_ENDPOINT", "LANGGRAPH_HOST_URL"):
        monkeypatch.delenv(name, raising=False)

    timeline: list[str] = []
    control_plane = ControlPlaneDouble(timeline)
    docker = DockerDouble(timeline)
-    uploads: list[tuple[str, str, int, dict[str, str] | None]] = []
+    uploads: list[tuple[str, str, int]] = []

    @contextmanager
    def fake_create_archive(config_path: Path, config: dict) -> Iterator[tuple]:
        timeline.append("create_archive")
        yield ARCHIVE

-    def fake_upload(
-        signed_url: str,
-        file_path: str,
-        file_size: int,
-        upload_headers: dict[str, str] | None,
-    ) -> None:
+    def fake_upload(signed_url: str, file_path: str, file_size: int) -> None:
        timeline.append("upload_archive")
-        uploads.append((signed_url, file_path, file_size, upload_headers))
+        uploads.append((signed_url, file_path, file_size))

    monkeypatch.setattr(deploy_module, "_no_input", False)
    monkeypatch.setattr(deploy_module, "_emitter", None)
@@ -355,48 +319,10 @@ def deploy_project(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> DeployPro
    )
    monkeypatch.setattr(deploy_module.platform, "machine", lambda: "x86_64")
    monkeypatch.setattr(archive_module, "create_archive", fake_create_archive)
-    monkeypatch.setattr(deploy_module, "_upload_source_tarball", fake_upload)
+    monkeypatch.setattr(deploy_module, "_upload_to_gcs", fake_upload)
    return DeployProject(control_plane, docker, timeline, uploads)


-@pytest.mark.parametrize("build_mode", ["--no-remote", "--remote"])
-@pytest.mark.parametrize(
-    ("detail", "expects_dev_hint"),
-    [
-        ("Scale to zero deployments are not supported in AWS environments", True),
-        ("No eligible cluster is currently available to host this deployment.", False),
-    ],
-)
-def test_create_failure_preserves_backend_error_and_only_hints_for_aws_rejection(
-    deploy_project: DeployProject, build_mode: str, detail: str, expects_dev_hint: bool
-) -> None:
-    deploy_project.control_plane.create_error = detail
-
-    result = deploy_project.run(build_mode)
-
-    assert result.exit_code == 1, result.output
-    assert detail in result.output
-    assert ("Use --deployment-type dev instead." in result.output) is expects_dev_hint
-    assert deploy_project.control_plane.bodies[CREATE_DEPLOYMENT]["source_config"] == {
-        "deployment_type": "dev_zero"
-    }
-    assert deploy_project.timeline == [LIST_DEPLOYMENTS, CREATE_DEPLOYMENT]
-
-
-@pytest.mark.parametrize("build_mode", ["--no-remote", "--remote"])
-def test_aws_serverless_creation_succeeds_when_backend_accepts_it(
-    deploy_project: DeployProject, build_mode: str
-) -> None:
-    result = deploy_project.run(
-        build_mode, host_url="https://aws.api.host.langchain.com"
-    )
-
-    assert result.exit_code == 0, result.output
-    assert deploy_project.control_plane.bodies[CREATE_DEPLOYMENT]["source_config"] == {
-        "deployment_type": "dev_zero"
-    }
-
-
 def test_first_local_deploy_creates_then_builds_pushes_and_updates_in_order(
    deploy_project: DeployProject,
 ) -> None:
@@ -408,7 +334,6 @@ def test_first_local_deploy_creates_then_builds_pushes_and_updates_in_order(
        CREATE_DEPLOYMENT,
        "docker build",
        _push_token(CREATED_ID),
-        "docker inspect-context",
        "docker login",
        "docker tag",
        "docker push",
@@ -418,41 +343,15 @@ def test_first_local_deploy_creates_then_builds_pushes_and_updates_in_order(
    assert "Deployment updated" in result.output


-@pytest.mark.parametrize(
-    ("deployment_type", "wire_type"),
-    [
-        ("serverless", "dev_zero"),
-        ("dedicated", "prod"),
-        ("dev", "dev"),
-        ("prod", "prod"),
-    ],
-)
-@pytest.mark.parametrize("build_mode", ["--no-remote", "--remote"])
-def test_deployment_type_aliases(
-    deploy_project: DeployProject, deployment_type: str, wire_type: str, build_mode: str
+def test_first_local_deploy_creates_an_internal_docker_deployment(
+    deploy_project: DeployProject,
 ) -> None:
-    result = deploy_project.run(build_mode, "--deployment-type", deployment_type)
+    deploy_project.run("--no-remote")

-    assert result.exit_code == 0, result.output
-    assert deploy_project.control_plane.bodies[CREATE_DEPLOYMENT]["source_config"] == {
-        "deployment_type": wire_type
-    }
-
-
-@pytest.mark.parametrize(
-    ("build_mode", "source"),
-    [("--no-remote", "internal_docker"), ("--remote", "internal_source")],
-)
-def test_first_deploy_defaults_to_serverless(
-    deploy_project: DeployProject, build_mode: str, source: str
-) -> None:
-    result = deploy_project.run(build_mode)
-
-    assert result.exit_code == 0, result.output
    assert deploy_project.control_plane.bodies[CREATE_DEPLOYMENT] == {
        "name": "my-app",
-        "source": source,
-        "source_config": {"deployment_type": "dev_zero"},
+        "source": "internal_docker",
+        "source_config": {"deployment_type": "dev"},
        "source_revision_config": {},
        "secrets": [],
    }
@@ -464,7 +363,7 @@ def test_first_deploy_defaults_to_serverless(
        pytest.param(
            "arm64",
            ("docker", "buildx", "build"),
-            ("--platform", "linux/amd64", "--load", "--progress=plain"),
+            ("--platform", "linux/amd64", "--load", "--progress=quiet"),
            id="apple_silicon_cross_builds_for_linux_amd64",
        ),
        pytest.param(
@@ -501,7 +400,7 @@ def test_local_deploy_logs_in_with_the_control_plane_push_token(

    login = deploy_project.docker.command("login")
    assert login.args[:2] == ("docker", "--config")
-    assert login.args[-5:] == (
+    assert login.args[3:] == (
        "login",
        "-u",
        "oauth2accesstoken",
@@ -511,95 +410,6 @@ def test_local_deploy_logs_in_with_the_control_plane_push_token(
    assert login.kwargs["input"] == f"{PUSH_TOKEN}\n"


-def test_local_deploy_logs_in_and_pushes_through_the_active_docker_context(
-    deploy_project: DeployProject,
-) -> None:
-    """The temporary config has no current context, so without the active
-    context's endpoint Docker would push through /var/run/docker.sock."""
-    result = deploy_project.run("--no-remote")
-
-    assert result.exit_code == 0, result.output
-    for verb in ("login", "push"):
-        args = deploy_project.docker.command(verb).args
-        assert args[3:5] == ("--host", CONTEXT_HOST), verb
-
-
-def test_local_deploy_leaves_an_explicit_docker_host_to_docker(
-    deploy_project: DeployProject, monkeypatch: pytest.MonkeyPatch
-) -> None:
-    monkeypatch.setenv("DOCKER_HOST", "tcp://127.0.0.1:2375")
-
-    result = deploy_project.run("--no-remote")
-
-    assert result.exit_code == 0, result.output
-    for verb in ("login", "push"):
-        assert "--host" not in deploy_project.docker.command(verb).args, verb
-
-
-def test_local_deploy_keeps_dockers_default_when_the_context_lookup_fails(
-    deploy_project: DeployProject,
-) -> None:
-    deploy_project.docker.context_lookup_fails = True
-
-    result = deploy_project.run("--no-remote")
-
-    assert result.exit_code == 0, result.output
-    assert "--host" not in deploy_project.docker.command("push").args
-
-
-def test_local_deploy_ignores_a_context_without_a_docker_endpoint(
-    deploy_project: DeployProject,
-) -> None:
-    deploy_project.docker.context_host = "<no value>"
-
-    result = deploy_project.run("--no-remote")
-
-    assert result.exit_code == 0, result.output
-    assert "--host" not in deploy_project.docker.command("push").args
-
-
-def test_local_deploy_tells_the_control_plane_it_honors_registry_usernames(
-    deploy_project: DeployProject,
-) -> None:
-    deploy_project.run("--no-remote")
-
-    assert deploy_project.control_plane.bodies[_push_token(CREATED_ID)] == {
-        "supports_registry_username": True
-    }
-
-
-ECR_REPOSITORY = "123456789012.dkr.ecr.us-east-2.amazonaws.com/lsd/agent-1"
-ECR_PUSH_TOKEN_FIELDS = {"username": "AWS", "repository_url": ECR_REPOSITORY}
-
-
-def test_local_deploy_logs_in_with_the_username_the_control_plane_returns(
-    deploy_project: DeployProject,
-) -> None:
-    deploy_project.control_plane.push_token_extra = ECR_PUSH_TOKEN_FIELDS
-
-    deploy_project.run("--no-remote")
-
-    login = deploy_project.docker.command("login")
-    assert login.args[-5:] == (
-        "login",
-        "-u",
-        "AWS",
-        "--password-stdin",
-        "123456789012.dkr.ecr.us-east-2.amazonaws.com",
-    )
-
-
-def test_local_deploy_pushes_to_exactly_the_returned_repository(
-    deploy_project: DeployProject,
-) -> None:
-    deploy_project.control_plane.push_token_extra = ECR_PUSH_TOKEN_FIELDS
-
-    deploy_project.run("--no-remote")
-
-    tag = deploy_project.docker.command("tag")
-    assert tag.args[-1] == f"{ECR_REPOSITORY}:latest"
-
-
 def test_local_deploy_tags_the_build_into_the_token_registry(
    deploy_project: DeployProject,
 ) -> None:
@@ -648,7 +458,6 @@ def test_prebuilt_image_is_validated_and_pushed_without_a_build(
    assert deploy_project.docker.builds == []
    assert deploy_project.docker.verbs() == [
        "docker inspect-platform",
-        "docker inspect-context",
        "docker login",
        "docker tag",
        "docker push",
@@ -714,9 +523,6 @@ def test_deployment_not_created_by_the_cli_gets_an_actionable_error(
 def test_remote_build_creates_an_internal_source_deployment_and_uploads_the_archive(
    deploy_project: DeployProject,
 ) -> None:
-    upload_headers = {"Content-Type": "application/gzip", "x-ms-blob-type": "BlockBlob"}
-    deploy_project.control_plane.upload_url_extra = {"upload_headers": upload_headers}
-
    result = deploy_project.run("--remote", "--install-command", "yarn install")

    assert result.exit_code == 0, result.output
@@ -731,12 +537,7 @@ def test_remote_build_creates_an_internal_source_deployment_and_uploads_the_arch
    assert deploy_project.control_plane.bodies[CREATE_DEPLOYMENT]["source"] == (
        "internal_source"
    )
-    assert deploy_project.control_plane.bodies[_upload_url(CREATED_ID)] == {
-        "supports_upload_headers": True
-    }
-    assert deploy_project.uploads == [
-        (SIGNED_UPLOAD_URL, ARCHIVE[0], ARCHIVE[1], upload_headers)
-    ]
+    assert deploy_project.uploads == [(SIGNED_UPLOAD_URL, ARCHIVE[0], ARCHIVE[1])]
    assert deploy_project.control_plane.bodies[_patch(CREATED_ID)] == {
        "revision_source": "internal_source",
        "source_revision_config": {
@@ -1117,100 +918,6 @@ def test_self_hosted_control_plane_places_when_asked(
    }


-def test_image_pull_secret_is_included_in_resource_spec_on_create(
-    deploy_project: DeployProject,
-) -> None:
-    result = deploy_project.run(
-        "--push-to",
-        PUSH_REPOSITORY,
-        "--image-pull-secret",
-        "regcred",
-        "--image-pull-secret",
-        "other-secret",
-    )
-
-    assert result.exit_code == 0, result.output
-    assert deploy_project.control_plane.bodies[CREATE_DEPLOYMENT]["source_config"] == {
-        "resource_spec": {
-            "image_pull_secrets": [
-                {"name": "regcred"},
-                {"name": "other-secret"},
-            ],
-        },
-    }
-
-
-def test_image_pull_secret_works_with_image_uri_too(
-    deploy_project: DeployProject,
-) -> None:
-    result = deploy_project.run(
-        "--image-uri", EXTERNAL_DIGEST, "--image-pull-secret", "regcred"
-    )
-
-    assert result.exit_code == 0, result.output
-    assert deploy_project.control_plane.bodies[CREATE_DEPLOYMENT]["source_config"] == {
-        "resource_spec": {"image_pull_secrets": [{"name": "regcred"}]},
-    }
-
-
-def test_image_pull_secret_without_push_to_or_image_uri_is_refused(
-    deploy_project: DeployProject,
-) -> None:
-    result = deploy_project.run("--image-pull-secret", "regcred")
-
-    assert result.exit_code != 0
-    assert "only apply when creating a deployment with --push-to" in result.output
-    assert deploy_project.timeline == []
-
-
-def test_an_invalid_image_pull_secret_name_is_rejected_before_any_docker_work(
-    deploy_project: DeployProject,
-) -> None:
-    result = deploy_project.run(
-        "--push-to", PUSH_REPOSITORY, "--image-pull-secret", "Not_Valid!"
-    )
-
-    assert result.exit_code != 0
-    assert "not a valid Kubernetes" in result.output
-    assert deploy_project.docker.verbs() == []
-    assert deploy_project.timeline == []
-
-
-def test_image_pull_secret_cannot_update_an_existing_deployment(
-    deploy_project: DeployProject,
-) -> None:
-    result = deploy_project.run(
-        "--deployment-id",
-        "dep-1",
-        "--push-to",
-        PUSH_REPOSITORY,
-        "--image-pull-secret",
-        "regcred",
-    )
-
-    assert result.exit_code != 0
-    assert "--image-pull-secret" in result.output
-    assert "dep-1" in result.output
-    assert deploy_project.timeline == []
-
-
-def test_image_pull_secret_cannot_update_a_deployment_found_by_name(
-    deploy_project: DeployProject,
-) -> None:
-    deploy_project.control_plane.existing_deployments = [
-        {"id": "dep-ext", "name": "my-app", "source": "external_docker"}
-    ]
-
-    result = deploy_project.run(
-        "--image-uri", EXTERNAL_DIGEST, "--image-pull-secret", "regcred"
-    )
-
-    assert result.exit_code != 0
-    assert "--image-pull-secret" in result.output
-    assert deploy_project.docker.verbs() == []
-    assert _patch("dep-ext") not in deploy_project.timeline
-
-
 def test_updating_a_deployment_never_looks_up_listeners(
    deploy_project: DeployProject,
 ) -> None:
@@ -1311,16 +1018,14 @@ def test_listener_flags_without_push_to_make_no_call_at_all(
    assert deploy_project.timeline == []


-def test_listeners_beyond_the_first_page_are_counted(
-    deploy_project: DeployProject,
-) -> None:
+def test_a_truncated_listener_page_says_so(deploy_project: DeployProject) -> None:
    deploy_project.control_plane.listeners = [
        {
            "id": str(uuid.UUID(int=index)),
            "compute_id": "cluster",
            "compute_config": {"k8s_namespaces": ["agents"]},
        }
-        for index in range(101)
+        for index in range(100)
    ]

    result = deploy_project.run(
@@ -1328,8 +1033,7 @@ def test_listeners_beyond_the_first_page_are_counted(
    )

    assert result.exit_code != 0
-    assert "... and 91 more" in result.output
-    assert "first 100" not in result.output
+    assert "first 100" in result.output


 def test_a_managed_build_in_a_listener_workspace_points_at_push_to(
@@ -16,7 +16,6 @@ from langgraph_cli.config import (
    config_to_docker,
    default_base_image,
    docker_tag,
-    get_unknown_keys,
    has_disallowed_build_command_content,
    validate_config,
    validate_config_file,
@@ -156,7 +155,6 @@ def test_validate_config():
        "store": None,
        "auth": None,
        "encryption": None,
-        "priority": None,
        "webhooks": None,
        "checkpointer": None,
        "http": None,
@@ -186,7 +184,6 @@ def test_validate_config():
        "store": None,
        "auth": None,
        "encryption": None,
-        "priority": None,
        "webhooks": None,
        "checkpointer": None,
        "http": None,
@@ -1292,109 +1289,6 @@ def test_config_to_docker_python_encryption_formatted():
    )


-@pytest.mark.parametrize(
-    "path", ["./priority.py:priority", "my_package.priority:priority"]
-)
-def test_config_to_docker_python_priority(path: str):
-    # Test that priority config is kept by validation and isn't an unknown key
-    raw_config = {
-        "python_version": "3.11",
-        "graphs": {"agent": "./agent.py:graph"},
-        "dependencies": ["."],
-        "priority": {"path": path},
-    }
-    validated = validate_config(raw_config)
-
-    assert validated["priority"] == {"path": path}
-    assert get_unknown_keys(raw_config) == []
-
-
-def test_config_to_docker_python_priority_bad_path():
-    # Test that invalid priority path format raises ValueError
-    with pytest.raises(ValueError, match="Invalid priority.path format"):
-        validate_config(
-            {
-                "python_version": "3.11",
-                "graphs": {"agent": "./agent.py:graph"},
-                "dependencies": ["."],
-                "priority": {"path": "./priority.py"},  # Missing :attribute
-            }
-        )
-
-
-@pytest.mark.parametrize("ext", [".ts", ".mts", ".cts", ".js", ".mjs", ".cjs"])
-def test_config_to_docker_python_priority_js_path(ext: str):
-    # Test that a JavaScript priority path is rejected
-    with pytest.raises(ValueError, match="JavaScript priority callbacks"):
-        validate_config(
-            {
-                "python_version": "3.11",
-                "graphs": {"agent": "./agent.py:graph"},
-                "dependencies": ["."],
-                "priority": {"path": f"./priority{ext}:priority"},
-            }
-        )
-
-
-def test_config_to_docker_nodejs_priority():
-    # Test that a Node.js-only project can name a Python priority file
-    actual_docker_stdin, _ = config_to_docker(
-        PATH_TO_CONFIG,
-        validate_config(
-            {
-                "node_version": "20",
-                "graphs": {"agent": "./graphs/agent.js:graph"},
-                "priority": {"path": "./priority.py:priority"},
-            }
-        ),
-        base_image="langchain/langgraphjs-api",
-    )
-    assert (
-        """ENV LANGGRAPH_PRIORITY='{"path": "./priority.py:priority"}'"""
-        in actual_docker_stdin
-    )
-
-
-def test_config_to_docker_python_priority_formatted():
-    # Test that priority config is written to the Docker output with its container path
-    actual_docker_stdin, _ = config_to_docker(
-        PATH_TO_CONFIG,
-        validate_config(
-            {
-                "python_version": "3.11",
-                "dependencies": ["."],
-                "graphs": {"agent": "./graphs/agent.py:graph"},
-                "priority": {"path": "./agent.py:my_priority"},
-            }
-        ),
-        base_image="langchain/langgraph-api",
-    )
-    assert (
-        "ENV LANGGRAPH_PRIORITY="
-        """'{"path": "/deps/outer-unit_tests/unit_tests/agent.py:my_priority"}'"""
-        in actual_docker_stdin
-    )
-
-
-def test_config_to_docker_python_priority_not_in_dependencies():
-    # Test that a priority file outside the dependencies raises ValueError
-    with pytest.raises(
-        ValueError, match="Priority file .* not covered by dependencies"
-    ):
-        config_to_docker(
-            PATH_TO_CONFIG,
-            validate_config(
-                {
-                    "python_version": "3.11",
-                    "dependencies": ["./graphs"],
-                    "graphs": {"agent": "./graphs/agent.py:graph"},
-                    "priority": {"path": "./agent.py:my_priority"},
-                }
-            ),
-            base_image="langchain/langgraph-api",
-        )
-
-
 def test_config_to_docker_nodejs_internal_docker_tag():
    graphs = {"agent": "./graphs/agent.js:graph"}
    actual_docker_stdin, additional_contexts = config_to_docker(
@@ -1837,38 +1731,6 @@ def test_config_to_docker_uv_lock_honors_root_workspace_sources():
        )


-def test_config_to_docker_uv_lock_rewrites_priority_path():
-    with tempfile.TemporaryDirectory() as tmpdir:
-        tmpdir_path = pathlib.Path(tmpdir)
-        project_root, config_path = _write_uv_lock_workspace(
-            tmpdir_path,
-            agent_sources="[tool.uv.sources]\nshared = { workspace = true }",
-        )
-        (project_root / "libs" / "shared" / "src" / "shared" / "priority.py").touch()
-
-        config = validate_config(
-            {
-                "python_version": "3.11",
-                "graphs": {
-                    "agent": "../../apps/agent/src/agent/graph.py:graph",
-                },
-                "source": {"kind": "uv", "root": "../..", "package": "agent"},
-                "priority": {
-                    "path": "../../libs/shared/src/shared/priority.py:priority"
-                },
-            }
-        )
-        docker, _ = config_to_docker(
-            config_path, config, base_image="langchain/langgraph-api:0.2.47"
-        )
-
-        assert (
-            "ENV LANGGRAPH_PRIORITY="
-            """'{"path": "/deps/workspace/libs/shared/src/shared/priority.py:priority"}'"""
-            in docker
-        )
-
-
 def test_config_to_docker_uv_lock_ignores_unrelated_workspace_package_sources():
    with tempfile.TemporaryDirectory() as tmpdir:
        tmpdir_path = pathlib.Path(tmpdir)
@@ -75,7 +75,6 @@ def test_agent_create(deployment_api, tmp_path, monkeypatch):
        "agent_id": "customer-support",
        "agent_environment": "staging",
        "limit": "100",
-        "offset": "0",
    }
    payload = json.loads(requests[1].content)
    assert payload["agent"] == {
@@ -85,8 +84,6 @@ def test_agent_create(deployment_api, tmp_path, monkeypatch):
    assert "name" not in payload
    assert build.call_args.kwargs["deployment_id"] == "runtime-id"
    assert "server-name" in result.output
-    assert "'langgraph deploy' is in beta" in result.output
-    assert "private beta" not in result.output
    assert (tmp_path / ".env").read_text() == "LANGSMITH_DEPLOYMENT_NAME=legacy\n"


@@ -16,7 +16,6 @@ from langgraph_cli.deploy import (
    BuildAndPush,
    ById,
    ByName,
-    CreateOnlySettings,
    CustomerRegistrySource,
    DockerBuildCommand,
    ExistingDeployment,
@@ -33,10 +32,8 @@ from langgraph_cli.deploy import (
    _Emitter,
    _env_without_deployment_name,
    _parse_env_from_config,
-    _print_deployment_result,
    _resolve_env_path,
    _resolve_pushed_image_digest,
-    _resource_spec,
    _select_source,
    _validate_prebuilt_image,
    find_deployment_by_name,
@@ -49,9 +46,7 @@ from langgraph_cli.image_reference import ImageReference

 class TestDockerConfigForToken:
    def test_creates_config_json(self):
-        with _docker_config_for_token(
-            "us-docker.pkg.dev", "my-token", "oauth2accesstoken"
-        ) as cfg:
+        with _docker_config_for_token("us-docker.pkg.dev", "my-token") as cfg:
            config_path = os.path.join(cfg, "config.json")
            assert os.path.isfile(config_path)
            with open(config_path) as f:
@@ -59,26 +54,13 @@ class TestDockerConfigForToken:
            expected_auth = base64.b64encode(b"oauth2accesstoken:my-token").decode()
            assert data == {"auths": {"us-docker.pkg.dev": {"auth": expected_auth}}}

-    def test_uses_the_given_username(self):
-        with _docker_config_for_token(
-            "123456789012.dkr.ecr.us-east-2.amazonaws.com", "ecr-password", "AWS"
-        ) as cfg:
-            with open(os.path.join(cfg, "config.json")) as f:
-                data = json.load(f)
-        expected_auth = base64.b64encode(b"AWS:ecr-password").decode()
-        assert data["auths"]["123456789012.dkr.ecr.us-east-2.amazonaws.com"] == {
-            "auth": expected_auth
-        }
-
    def test_tempdir_cleaned_up(self):
-        with _docker_config_for_token(
-            "registry.example.com", "tok", "oauth2accesstoken"
-        ) as cfg:
+        with _docker_config_for_token("registry.example.com", "tok") as cfg:
            assert os.path.isdir(cfg)
        assert not os.path.exists(cfg)

    def test_different_registries(self):
-        with _docker_config_for_token("gcr.io", "token123", "oauth2accesstoken") as cfg:
+        with _docker_config_for_token("gcr.io", "token123") as cfg:
            with open(os.path.join(cfg, "config.json")) as f:
                data = json.load(f)
            assert "gcr.io" in data["auths"]
@@ -537,39 +519,6 @@ class TestEmitterTextMode:
        assert "URL: https://app.test" in lines


-@pytest.mark.parametrize(
-    ("deployment", "expected_url_lines"),
-    [
-        pytest.param(
-            {
-                "id": "dep-1",
-                "source_config": {"custom_url": "https://agent.example.com"},
-            },
-            ["URL: https://agent.example.com"],
-            id="custom_url_is_printed",
-        ),
-        pytest.param(
-            {"id": "dep-1", "source_config": {}}, [], id="no_custom_url_no_line"
-        ),
-    ],
-)
-def test_a_deployed_result_prints_the_deployment_url(
-    capsys, monkeypatch, deployment, expected_url_lines
-):
-    class FakeClient:
-        def get_deployment(self, deployment_id: str) -> dict:
-            return deployment
-
-    monkeypatch.setattr(deploy_mod, "_emitter", None)
-
-    _print_deployment_result(
-        FakeClient(), "dep-1", "DEPLOYED", dashboard_label="Deployment dashboard"
-    )
-
-    lines = [line.strip() for line in capsys.readouterr().out.splitlines()]
-    assert [line for line in lines if line.startswith("URL:")] == expected_url_lines
-
-
 # ---------------------------------------------------------------------------
 # --no-input guard on _create_host_backend_client
 # ---------------------------------------------------------------------------
@@ -644,9 +593,9 @@ class TestDockerBuildCommand:
                False,
                DockerBuildCommand(
                    ("docker", "buildx", "build"),
-                    ("--platform", "linux/amd64", "--load", "--progress=plain"),
+                    ("--platform", "linux/amd64", "--load", "--progress=quiet"),
                ),
-                id="other_hosts_capture_plain_build_logs",
+                id="other_hosts_cross_build_quietly",
            ),
            pytest.param(
                "arm64",
@@ -672,7 +621,6 @@ class TestSelectSource:
        "tag": None,
        "remote_build_flag": None,
        "placement": RequestedPlacement(),
-        "image_pull_secrets": (),
        "selector": ByName("my-app"),
    }
    REPOSITORY = "registry.example.com/app"
@@ -688,7 +636,7 @@ class TestSelectSource:
                        reference=ImageReference(REPOSITORY, "latest"),
                        prebuilt_image=None,
                    ),
-                    create_only=CreateOnlySettings(RequestedPlacement()),
+                    requested_placement=RequestedPlacement(),
                ),
                id="push_to_selects_the_external_source_with_the_default_tag",
            ),
@@ -700,7 +648,7 @@ class TestSelectSource:
                        reference=ImageReference(REPOSITORY, "v2"),
                        prebuilt_image=None,
                    ),
-                    create_only=CreateOnlySettings(RequestedPlacement()),
+                    requested_placement=RequestedPlacement(),
                ),
                id="push_to_keeps_a_tag_given_in_the_reference",
            ),
@@ -712,7 +660,7 @@ class TestSelectSource:
                        reference=ImageReference(REPOSITORY, "v3"),
                        prebuilt_image=None,
                    ),
-                    create_only=CreateOnlySettings(RequestedPlacement()),
+                    requested_placement=RequestedPlacement(),
                ),
                id="tag_flag_composes_with_push_to",
            ),
@@ -724,7 +672,7 @@ class TestSelectSource:
                        reference=ImageReference(REPOSITORY, "latest"),
                        prebuilt_image="app:dev",
                    ),
-                    create_only=CreateOnlySettings(RequestedPlacement()),
+                    requested_placement=RequestedPlacement(),
                ),
                id="prebuilt_image_is_retagged_for_push_to_without_docker_checks",
            ),
@@ -739,35 +687,16 @@ class TestSelectSource:
                        reference=ImageReference(REPOSITORY, "latest"),
                        prebuilt_image=None,
                    ),
-                    create_only=CreateOnlySettings(
-                        RequestedPlacement("listener-1", "agents")
-                    ),
+                    requested_placement=RequestedPlacement("listener-1", "agents"),
                ),
                id="push_to_carries_the_requested_placement",
            ),
-            pytest.param(
-                {
-                    "push_to": REPOSITORY,
-                    "image_pull_secrets": ("regcred", "other-secret"),
-                },
-                True,
-                CustomerRegistrySource(
-                    image=BuildAndPush(
-                        reference=ImageReference(REPOSITORY, "latest"),
-                        prebuilt_image=None,
-                    ),
-                    create_only=CreateOnlySettings(
-                        RequestedPlacement(), ("regcred", "other-secret")
-                    ),
-                ),
-                id="push_to_carries_the_image_pull_secrets",
-            ),
            pytest.param(
                {"image_uri": f"{REPOSITORY}@sha256:abc123"},
                True,
                CustomerRegistrySource(
                    image=PublishedImage(f"{REPOSITORY}@sha256:abc123"),
-                    create_only=CreateOnlySettings(RequestedPlacement()),
+                    requested_placement=RequestedPlacement(),
                ),
                id="image_uri_selects_the_published_image_source_by_digest",
            ),
@@ -776,7 +705,7 @@ class TestSelectSource:
                False,
                CustomerRegistrySource(
                    image=PublishedImage(f"{REPOSITORY}@sha256:abc123"),
-                    create_only=CreateOnlySettings(RequestedPlacement()),
+                    requested_placement=RequestedPlacement(),
                ),
                id="image_uri_needs_no_local_docker_and_is_trimmed",
            ),
@@ -788,9 +717,7 @@ class TestSelectSource:
                False,
                CustomerRegistrySource(
                    image=PublishedImage(f"{REPOSITORY}@sha256:abc123"),
-                    create_only=CreateOnlySettings(
-                        RequestedPlacement("listener-1", "agents")
-                    ),
+                    requested_placement=RequestedPlacement("listener-1", "agents"),
                ),
                id="image_uri_carries_the_requested_placement",
            ),
@@ -879,11 +806,6 @@ class TestSelectSource:
                "only apply when creating a deployment with --push-to",
                id="namespace_without_push_to",
            ),
-            pytest.param(
-                {"image_pull_secrets": ("regcred",)},
-                "only apply when creating a deployment with --push-to",
-                id="image_pull_secret_without_push_to",
-            ),
            pytest.param(
                {"image_uri": REPOSITORY, "push_to": REPOSITORY},
                "--image-uri cannot be combined with --push-to.",
@@ -1244,7 +1166,6 @@ def test_finding_a_deployment_by_name_narrows_the_search_for_every_server_versio
        "name": "agent",
        "name_contains": "agent",
        "limit": "100",
-        "offset": "0",
    }
    assert found == ExistingDeployment("dep-1", "github")

@@ -1272,29 +1193,20 @@ def test_a_server_that_ignores_the_exact_name_filter_never_matches_another_deplo
    assert find_deployment_by_name(client, "brand-new-agent") is None


-def test_a_deployment_beyond_the_first_page_is_found_by_name():
-    deployments = [
-        *(
-            {"id": f"dep-{index}", "name": f"other-agent-{index}"}
-            for index in range(100)
-        ),
-        {"id": "dep-target", "name": "agent", "source": "external_docker"},
+def test_a_full_page_without_a_match_refuses_to_claim_the_name_is_free():
+    page = [
+        {"id": f"dep-{index}", "name": f"other-agent-{index}"} for index in range(100)
    ]
-
-    def handler(req: httpx.Request) -> httpx.Response:
-        offset = int(req.url.params["offset"])
-        limit = int(req.url.params["limit"])
-        return httpx.Response(
-            200, json={"resources": deployments[offset : offset + limit]}
-        )
-
    client = HostBackendClient(
-        "https://api.example.com", "key", transport=httpx.MockTransport(handler)
+        "https://api.example.com",
+        "key",
+        transport=httpx.MockTransport(
+            lambda req: httpx.Response(200, json={"resources": page})
+        ),
    )

-    assert find_deployment_by_name(client, "agent") == ExistingDeployment(
-        "dep-target", "external_docker"
-    )
+    with pytest.raises(click.ClickException, match="--deployment-id"):
+        find_deployment_by_name(client, "brand-new-agent")


 def test_a_partial_page_without_a_match_means_the_name_is_free():
@@ -1331,7 +1243,7 @@ def test_a_deployment_id_with_listener_flags_is_refused_without_probing_docker(

    monkeypatch.setattr(deploy_mod, "can_build_locally", explode)

-    with pytest.raises(click.UsageError, match="dep-1"):
+    with pytest.raises(click.UsageError, match="--deployment-id"):
        _select_source(
            push_to="registry.example.com/app",
            image=None,
@@ -1340,77 +1252,10 @@ def test_a_deployment_id_with_listener_flags_is_refused_without_probing_docker(
            tag=None,
            remote_build_flag=None,
            placement=RequestedPlacement(listener_id="listener-1"),
-            image_pull_secrets=(),
            selector=ById("dep-1"),
        )


-def test_a_deployment_id_with_image_pull_secrets_is_refused_without_probing_docker(
-    monkeypatch,
-):
-    def explode() -> tuple[bool, str | None]:
-        raise AssertionError("docker must not be probed for an argv-only conflict")
-
-    monkeypatch.setattr(deploy_mod, "can_build_locally", explode)
-
-    with pytest.raises(click.UsageError, match="dep-1"):
-        _select_source(
-            push_to="registry.example.com/app",
-            image=None,
-            image_uri=None,
-            image_name=None,
-            tag=None,
-            remote_build_flag=None,
-            placement=RequestedPlacement(),
-            image_pull_secrets=("regcred",),
-            selector=ById("dep-1"),
-        )
-
-
-class TestResourceSpec:
-    def test_no_secrets_keeps_the_operator_default(self):
-        assert _resource_spec(()) == {}
-
-    def test_secrets_become_local_object_references_in_order(self):
-        assert _resource_spec(("regcred", "other-secret")) == {
-            "image_pull_secrets": [
-                {"name": "regcred"},
-                {"name": "other-secret"},
-            ],
-        }
-
-
-class TestCreateOnlySettings:
-    @pytest.mark.parametrize(
-        "name",
-        [
-            pytest.param("Bad_Name", id="uppercase_and_underscore"),
-            pytest.param("", id="empty"),
-            pytest.param("-leading-hyphen", id="leading_hyphen"),
-            pytest.param("a" * 254, id="too_long"),
-        ],
-    )
-    def test_an_invalid_secret_name_is_rejected_up_front(self, name):
-        with pytest.raises(click.UsageError, match="not a valid Kubernetes"):
-            CreateOnlySettings(RequestedPlacement(), (name,))
-
-    def test_a_valid_secret_name_is_accepted(self):
-        CreateOnlySettings(RequestedPlacement(), ("regcred-1.example",))
-
-    def test_ensure_not_existing_mentions_the_api_and_ui_for_pull_secrets(self):
-        settings = CreateOnlySettings(RequestedPlacement(), ("regcred",))
-        with pytest.raises(click.UsageError, match="API or the LangSmith UI"):
-            settings.ensure_not_existing("dep-1")
-
-    def test_ensure_not_existing_keeps_the_placement_message_unchanged(self):
-        settings = CreateOnlySettings(RequestedPlacement(listener_id="listener-1"))
-        with pytest.raises(
-            click.UsageError,
-            match="Listener and namespace are fixed when a deployment is created",
-        ):
-            settings.ensure_not_existing("dep-1")
-
-
 class TestPlacementOnAKnownListener:
    @pytest.mark.parametrize(
        ("request_", "listener", "expected"),
@@ -1458,59 +1303,3 @@ class TestPlacementOnAKnownListener:
    def test_refuses_and_names_the_namespaces(self, request_, listener, message):
        with pytest.raises(click.UsageError, match=message):
            request_.on(listener)
-
-
-DEFAULT_UPLOAD_HEADERS = {
-    "content-type": "application/gzip",
-    "content-length": "7",
-    "x-goog-content-length-range": "0,209715200",
-}
-
-
-@pytest.mark.parametrize(
-    ("upload_headers", "expected"),
-    [
-        pytest.param(None, DEFAULT_UPLOAD_HEADERS, id="missing_sends_defaults"),
-        pytest.param({}, DEFAULT_UPLOAD_HEADERS, id="empty_sends_defaults"),
-        pytest.param(
-            {
-                "content-type": "application/x-gzip",
-                "x-ms-blob-type": "BlockBlob",
-                "content-length": "1",
-            },
-            {
-                "content-type": "application/x-gzip",
-                "x-ms-blob-type": "BlockBlob",
-                "content-length": "7",
-            },
-            id="returned_headers_replace_defaults",
-        ),
-        pytest.param(
-            {"x-ms-blob-type": "BlockBlob"},
-            {
-                "content-type": "application/gzip",
-                "x-ms-blob-type": "BlockBlob",
-                "content-length": "7",
-            },
-            id="returned_headers_keep_a_content_type",
-        ),
-    ],
-)
-def test_source_upload_sends_the_headers_the_signed_url_requires(
-    tmp_path, mocker, upload_headers, expected
-):
-    archive = tmp_path / "source.tar.gz"
-    archive.write_bytes(b"tarball")
-    sent = []
-    mocker.patch(
-        "langgraph_cli.deploy._get_emitter", return_value=MagicMock(json_mode=True)
-    )
-    mocker.patch(
-        "urllib.request.urlopen", side_effect=lambda req, timeout: sent.append(req)
-    )
-
-    deploy_mod._upload_source_tarball(
-        "https://storage.example/signed", str(archive), 7, upload_headers
-    )
-
-    assert {name.lower(): value for name, value in sent[0].header_items()} == expected
@@ -1,17 +0,0 @@
-import sys
-
-from langgraph_cli.exec import subp_exec
-
-
-async def test_verbose_prints_command_but_not_stdin(capsys):
-    await subp_exec(
-        sys.executable,
-        "-c",
-        "import sys; sys.stdin.read()",
-        input="registry-push-token\n",
-        verbose=True,
-    )
-
-    out = capsys.readouterr().out
-    assert out.startswith(f"+ {sys.executable} -c"), out
-    assert "registry-push-token" not in out, out
@@ -575,7 +575,7 @@ def test_list_listeners_asks_for_a_full_page():
    )

    assert c.list_listeners() == [{"id": "listener-1"}]
-    assert seen["url"] == "https://api.example.com/v2/listeners?limit=100&offset=0"
+    assert seen["url"] == "https://api.example.com/v2/listeners?limit=100"


@pytest.mark.parametrize(
@@ -602,30 +602,29 @@ def test_is_cloud_recognises_the_managed_control_plane(control_plane_url, expect
    assert endpoints.is_cloud is expected


-FIRST_PAGE = {"limit": "100", "offset": "0"}
-
-
@pytest.mark.parametrize(
    ("call", "expected_params"),
    [
        pytest.param(
            lambda c: c.list_deployments(name="agent"),
-            {"name": "agent", **FIRST_PAGE},
+            {"name": "agent"},
            id="exact_name_filters_server_side",
        ),
        pytest.param(
            lambda c: c.list_deployments(name_contains="age"),
-            {"name_contains": "age", **FIRST_PAGE},
+            {"name_contains": "age"},
            id="substring_search_keeps_its_own_parameter",
        ),
        pytest.param(
            lambda c: c.list_deployments(),
-            FIRST_PAGE,
-            id="no_filter_sends_only_the_page",
+            {},
+            id="no_filter_sends_no_parameters",
        ),
        pytest.param(
-            lambda c: c.list_deployments(name="agent", name_contains="agent"),
-            {"name": "agent", "name_contains": "agent", **FIRST_PAGE},
+            lambda c: c.list_deployments(
+                name="agent", name_contains="agent", limit=100
+            ),
+            {"name": "agent", "name_contains": "agent", "limit": "100"},
            id="both_filters_travel_together_for_older_servers",
        ),
    ],
@@ -646,68 +645,6 @@ def test_list_deployments_sends_one_name_filter(call, expected_params):
    assert seen == expected_params


-@pytest.mark.parametrize(
-    "list_every",
-    [
-        pytest.param(HostBackendClient.list_deployments, id="deployments"),
-        pytest.param(HostBackendClient.list_listeners, id="listeners"),
-    ],
-)
-def test_list_endpoints_read_every_page(list_every):
-    resources = [{"id": f"resource-{index}"} for index in range(101)]
-    offsets: list[str] = []
-
-    def handler(req: httpx.Request) -> httpx.Response:
-        offset = int(req.url.params["offset"])
-        limit = int(req.url.params["limit"])
-        offsets.append(req.url.params["offset"])
-        return httpx.Response(
-            200, json={"resources": resources[offset : offset + limit]}
-        )
-
-    c = HostBackendClient(
-        "https://api.example.com", "key", transport=httpx.MockTransport(handler)
-    )
-
-    assert list_every(c) == resources
-    assert offsets == ["0", "100"]
-
-
-FIRST_PAGE_OF_DEPLOYMENTS = [
-    {"id": f"dep-{index}", "status": "DEPLOYED"} for index in range(100)
-]
-
-
-@pytest.mark.parametrize(
-    "repeated_page",
-    [
-        pytest.param(FIRST_PAGE_OF_DEPLOYMENTS, id="same_page_again"),
-        pytest.param(
-            [
-                {"id": "dep-99", "status": "DEPLOYING"},
-                *FIRST_PAGE_OF_DEPLOYMENTS[:99],
-            ],
-            id="same_deployments_reordered_and_updated",
-        ),
-    ],
-)
-def test_list_deployments_fails_when_the_server_ignores_the_offset(repeated_page):
-    pages = iter([FIRST_PAGE_OF_DEPLOYMENTS, repeated_page])
-
-    def handler(req: httpx.Request) -> httpx.Response:
-        page = next(pages, None)
-        if page is None:
-            return httpx.Response(500, json={"detail": "the guard let paging run on"})
-        return httpx.Response(200, json={"resources": page})
-
-    c = HostBackendClient(
-        "https://api.example.com", "key", transport=httpx.MockTransport(handler)
-    )
-
-    with pytest.raises(HostBackendError, match="ignores 'offset'"):
-        c.list_deployments()
-
-
@pytest.mark.parametrize(
    ("body", "expected"),
    [
@@ -1,6 +1,11 @@
 from unittest.mock import patch

-from langgraph_cli.deploy import Table
+from langgraph_cli.deploy import (
+    _extract_deployment_url,
+    format_deployments_table,
+    format_listeners_table,
+    format_revisions_table,
+)
 from langgraph_cli.util import clean_empty_lines, warn_non_wolfi_distro


@@ -189,7 +194,96 @@ def test_warn_non_wolfi_distro_does_not_modify_config():
    assert config_copy == original_config  # Config should remain unchanged


-def test_a_table_without_rows_still_renders_its_headers():
-    table = Table(("Name", "Status"), lambda resource: (None, None))
+def test_extract_deployment_url_uses_custom_url():
+    deployment = {"source_config": {"custom_url": "https://example.com/custom"}}
+    assert _extract_deployment_url(deployment) == "https://example.com/custom"

-    assert table.render([]).splitlines() == ["Name  Status", "----  ------"]
+
+def test_extract_deployment_url_defaults_to_dash():
+    assert _extract_deployment_url({"id": "dep-123"}) == "-"
+
+
+def test_format_deployments_table():
+    output = format_deployments_table(
+        [
+            {
+                "id": "dep-123",
+                "name": "alpha",
+                "source_config": {"custom_url": "https://alpha.example.com"},
+            },
+            {
+                "id": "dep-456",
+                "name": "beta",
+                "url": "https://beta.example.com",
+            },
+        ]
+    )
+    assert "Deployment ID" in output
+    assert "Deployment Name" in output
+    assert "Deployment URL" in output
+    assert "dep-123" in output
+    assert "alpha" in output
+    assert "https://alpha.example.com" in output
+    assert "dep-456" in output
+
+
+def test_format_revisions_table():
+    output = format_revisions_table(
+        [
+            {
+                "id": "rev-123",
+                "status": "DEPLOYED",
+                "created_at": "2023-11-09T10:00:00Z",
+            },
+            {
+                "id": "rev-456",
+                "status": "CREATING",
+                "created_at": "2023-11-07T05:31:56Z",
+            },
+            {
+                "id": "rev-789",
+                "status": "DEPLOYED",
+                "created_at": "2023-11-08T10:00:00Z",
+            },
+        ]
+    )
+    assert "Revision ID" in output
+    assert "Status" in output
+    assert "Created At" in output
+    assert "rev-123" in output
+    assert "CREATING" in output
+    assert "2023-11-07T05:31:56Z" in output
+    assert "rev-456" in output
+    assert "rev-789" in output
+    assert "REPLACED" in output
+
+
+def test_format_listeners_table():
+    output = format_listeners_table(
+        [
+            {
+                "id": "listener-1",
+                "compute_id": "prod-cluster",
+                "compute_config": {"k8s_namespaces": ["agents"]},
+            },
+            {
+                "id": "listener-2",
+                "compute_id": "multi-cluster",
+                "compute_config": {"k8s_namespaces": ["agents", "agents-staging"]},
+            },
+            {
+                "id": "listener-3",
+                "compute_id": "broken-cluster",
+            },
+        ]
+    )
+    assert "Listener ID" in output
+    assert "Compute ID" in output
+    assert "Namespaces" in output
+    assert "listener-1" in output
+    assert "prod-cluster" in output
+    assert "agents" in output
+    assert "listener-2" in output
+    assert "agents, agents-staging" in output
+    assert "listener-3" in output
+    assert "broken-cluster" in output
@@ -1,5 +1,5 @@
 version = 1
-revision = 5
+revision = 3
 requires-python = ">=3.11"

 [manifest]
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 [[package]]
 name = "certifi"
-version = "2026.10.19"
+version = "2026.2.25"
 source = { registry = "https://pypi.org/simple" }
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+    { url = "https://files.pythonhosted.org/packages/9a/3c/c17fb3ca2d9c3acff52e30b309f538586f9f5b9c9cf454f3845fc9af4881/certifi-2026.2.25-py3-none-any.whl", hash = "sha256:027692e4402ad994f1c42e52a4997a9763c646b73e4096e4d5d6db8af1d6f0fa", size = 153684, upload-time = "2026-02-25T02:54:15.766Z" },
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-version = "1.2.19"
+version = "1.2.11"
 source = { registry = "https://pypi.org/simple" }
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-version = "4.3.0"
+version = "4.2.0"
 source = { registry = "https://pypi.org/simple" }
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    { name = "ormsgpack" },
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-version = "3.1.3"
+version = "3.1.1"
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+version = "0.4.4"
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@@ -1,5 +1,5 @@
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+revision = 3
 requires-python = ">=3.11"

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+version = "2026.5.20"
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+version = "1.2.11"
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-    "python_full_version == '3.11.*' or (python_full_version >= '3.12' and python_full_version < '3.15' and sys_platform != 'emscripten')",
+    "(python_full_version >= '3.11' and python_full_version < '3.15' and sys_platform != 'emscripten') or (python_full_version == '3.11.*' and sys_platform == 'emscripten')",
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-    { name = "typing-extensions", version = "4.16.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.11'" },
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@@ -43,31 +43,14 @@ start-services:
 stop-services:
 	docker compose -f tests/compose-postgres.yml -f tests/compose-redis.yml down -v

-DEV_SERVER_PYTHON ?= 3.12
-DEV_SERVER_ENV = $(CURDIR)/.venvs/dev-server
-
 start-dev-server:
-	uv sync --frozen --group test --no-dev
-	UV_PROJECT_ENVIRONMENT=$(DEV_SERVER_ENV) uv sync --frozen --group test --no-dev --python $(DEV_SERVER_PYTHON)
-	@LOG_LEVEL=warning UV_PROJECT_ENVIRONMENT=$(DEV_SERVER_ENV) uv run --no-sync --python $(DEV_SERVER_PYTHON) langgraph dev --config tests/example_app/langgraph.json --no-browser --no-reload & \
-	PID=$$!; echo "$$PID" > .devserver.pid; \
-	for ATTEMPT in $$(seq 1 60); do \
-		if ! kill -0 $$PID 2>/dev/null; then break; fi; \
-		if curl --fail --silent --max-time 1 http://localhost:2024/ok >/dev/null; then \
-			echo "Dev server ready."; exit 0; \
-		fi; \
-		sleep 1; \
-	done; \
-	echo "Dev server failed to become ready." >&2; \
-	kill $$PID 2>/dev/null || true; \
-	wait $$PID 2>/dev/null || true; \
-	rm -f .devserver.pid; exit 1
+	LOG_LEVEL=warning uv run langgraph dev --config tests/example_app/langgraph.json --no-browser & echo "$$!" > .devserver.pid
+	@echo "Dev server started."

 stop-dev-server:
 	@if [ -f .devserver.pid ]; then \
-		kill $$(cat .devserver.pid) 2>/dev/null || true; \
-		rm -f .devserver.pid; \
-		echo "Dev server stopped."; \
+		kill `cat .devserver.pid` && rm .devserver.pid; \
+		 echo "Dev server stopped."; \
 	else \
 		echo "No dev server PID file found."; \
 	fi
@@ -77,12 +60,13 @@ NO_DOCKER ?= $(sh command -v docker >/dev/null 2>&1 && echo "false" || echo "tru

 test:
 	if [ "$(NO_DOCKER)" = "false" ]; then \
-		trap '$(MAKE) stop-dev-server; $(MAKE) stop-services' EXIT; \
-		trap 'exit 130' INT; trap 'exit 143' TERM; \
-		$(MAKE) start-services &&\
-		$(MAKE) start-dev-server &&\
-		uv run --no-sync pytest $(TEST); \
-		exit $$?; \
+		make start-services &&\
+		make start-dev-server &&\
+		uv run pytest $(TEST); \
+		EXIT_CODE=$$?; \
+		make stop-services; \
+		make stop-dev-server; \
+		exit $$EXIT_CODE; \
 	else \
 		NO_DOCKER=true uv run pytest $(TEST) ; \
 		EXIT_CODE=$$?; \
@@ -90,12 +74,13 @@ test:
 	fi

 test_parallel:
-	trap '$(MAKE) stop-dev-server; $(MAKE) stop-services' EXIT; \
-	trap 'exit 130' INT; trap 'exit 143' TERM; \
-	$(MAKE) start-services &&\
-	$(MAKE) start-dev-server &&\
-	uv run --no-sync pytest -n auto --dist worksteal $(TEST) -vv --lf; \
-	exit $$?
+	make start-services &&\
+	make start-dev-server &&\
+	uv run pytest -n auto --dist worksteal $(TEST) -vv --lf; \
+	EXIT_CODE=$$?; \
+	make stop-services; \
+	make stop-dev-server; \
+	exit $$EXIT_CODE

 integration_tests:
 	uv run pytest integration_tests
@@ -29,19 +29,7 @@ from langgraph._internal._constants import (
    NS_SEP,
 )

-
-class _DefaultRecursionLimit(int):
-    """The limit `ensure_config` fills in when none is given.
-
-    `merge_configs` skips values of this type rather than any equal value, so an
-    explicit limit that happens to equal the default still applies. It checks the
-    type, not identity, because copying or pickling a config rebuilds the value.
-    """
-
-
-DEFAULT_RECURSION_LIMIT = _DefaultRecursionLimit(
-    getenv("LANGGRAPH_DEFAULT_RECURSION_LIMIT", "10007")
-)
+DEFAULT_RECURSION_LIMIT = int(getenv("LANGGRAPH_DEFAULT_RECURSION_LIMIT", "10007"))
 DELTA_MAX_SUPERSTEPS_SINCE_SNAPSHOT = int(
    getenv("LANGGRAPH_DELTA_MAX_SUPERSTEPS_SINCE_SNAPSHOT", "5000")
 )
@@ -194,7 +182,7 @@ def merge_configs(*configs: RunnableConfig | None) -> RunnableConfig:
                    base.get("callbacks"), cast(Callbacks, value)
                )
            elif key == "recursion_limit":
-                if not isinstance(config["recursion_limit"], _DefaultRecursionLimit):
+                if config["recursion_limit"] != DEFAULT_RECURSION_LIMIT:
                    base["recursion_limit"] = config["recursion_limit"]
            else:
                base[key] = config[key]  # type: ignore[literal-required]
@@ -347,7 +335,6 @@ def ensure_config(*configs: RunnableConfig | None) -> RunnableConfig:
        recursion_limit=DEFAULT_RECURSION_LIMIT,
        configurable={},
    )
-    inherited_tags: set[str] = set()
    if var_config := var_child_runnable_config.get():
        empty.update(
            {
@@ -356,7 +343,6 @@ def ensure_config(*configs: RunnableConfig | None) -> RunnableConfig:
                if _is_not_empty(v)
            },
        )
-        inherited_tags.update(empty["tags"])
    # An explicit config that supplies its own checkpoint coordinate (a
    # thread_id, or any checkpoint_ns/checkpoint_id/checkpoint_map) is addressing
    # its own checkpoint lineage, so drop the inherited ambient configurable
@@ -409,14 +395,12 @@ def ensure_config(*configs: RunnableConfig | None) -> RunnableConfig:
                elif k == "tags":
                    # Concatenate tags across configs so values bound via
                    # with_config(...) are preserved when later configs
-                    # supply additional tags. Matches merge_configs. Tags the
-                    # ambient config already has are skipped: a subgraph gets
-                    # its parent's config both explicitly and as the ambient
-                    # one, so they would double at every nesting level.
+                    # supply additional tags. Matches merge_configs.
                    existing_tags: list[str] | None = empty.get("tags")
-                    new_tags = [t for t in cast(list, v) if t not in inherited_tags]
                    empty["tags"] = (
-                        [*existing_tags, *new_tags] if existing_tags else new_tags
+                        [*existing_tags, *cast(list, v)]
+                        if existing_tags
+                        else list(cast(list, v))
                    )
                else:
                    empty[k] = v  # type: ignore[literal-required]
@@ -74,8 +74,6 @@ CONFIG_KEY_RUNTIME = sys.intern("__pregel_runtime")
 # holds a `Runtime` instance with context, store, stream writer, etc.
 CONFIG_KEY_RESUME_MAP = sys.intern("__pregel_resume_map")
 # holds a mapping of task ns -> resume value for resuming tasks
-CONFIG_KEY_STRICT_RESUME = sys.intern("__pregel_strict_resume")
-# when True, the root graph refuses a resume that can't be matched to its pending interrupts
 CONFIG_KEY_STREAM_MESSAGES_V2 = sys.intern("__pregel_stream_messages_v2")
 # when True, attach StreamMessagesHandlerV2 so content-block (v2) events
 # flow through stream_mode="messages"; set by StreamingHandler only.
@@ -136,7 +134,6 @@ RESERVED = {
    CONFIG_KEY_CHECKPOINT_NS,
    CONFIG_KEY_TIMED_ATTEMPT_OBSERVER,
    CONFIG_KEY_RESUME_MAP,
-    CONFIG_KEY_STRICT_RESUME,
    CONFIG_KEY_STREAM_MESSAGES_V2,
    # other constants
    PUSH,
@@ -1,7 +1,6 @@
 from __future__ import annotations

 import asyncio
-import copy
 import enum
 import inspect
 import logging
@@ -24,16 +23,9 @@ from typing import (
    Optional,
    Protocol,
    TypeGuard,
-    TypeVar,
    cast,
 )

-from langchain_core.callbacks.base import BaseCallbackHandler, BaseCallbackManager
-from langchain_core.callbacks.manager import (
-    AsyncCallbackManagerForChainRun,
-    BaseRunManager,
-    CallbackManagerForChainRun,
-)
 from langchain_core.runnables.base import (
    Runnable,
    RunnableConfig,
@@ -49,7 +41,6 @@ from langchain_core.runnables.config import (
    var_child_runnable_config,
 )
 from langchain_core.runnables.utils import Input, Output
-from langchain_core.tracers.base import BaseTracer
 from langchain_core.tracers.langchain import LangChainTracer
 from langgraph.store.base import BaseStore

@@ -66,7 +57,7 @@ from langgraph._internal._constants import (
 )
 from langgraph._internal._typing import MISSING
 from langgraph.errors import NodeError
-from langgraph.types import StreamWriter, TracePolicy
+from langgraph.types import StreamWriter

 try:
    from langchain_core.tracers._streaming import _StreamingCallbackHandler
@@ -94,29 +85,6 @@ def _trace_payload(value: Any, transform: Callable[[Any], Any] | None) -> Any:
        return value


-def _is_stream_handler(handler: BaseCallbackHandler) -> bool:
-    # Inheritance, not isinstance on the runtime-checkable protocol, which also
-    # matches any exporter that merely has the tap methods: stream handlers get a
-    # node's real payload and its streamed output.
-    return _StreamingCallbackHandler in type(handler).__mro__
-
-
-_M = TypeVar("_M", bound=BaseCallbackManager | BaseRunManager)
-
-
-def _split_handlers(manager: _M) -> tuple[_M, _M]:
-    # The recorded payload exists to keep tracer ingest small, so only tracers get it.
-    # `astream_log`'s handler is a tracer too, but it feeds the caller's own stream.
-    real, tracers = copy.copy(manager), copy.copy(manager)
-    tracers.handlers = [
-        h
-        for h in manager.handlers
-        if isinstance(h, BaseTracer) and not _is_stream_handler(h)
-    ]
-    real.handlers = [h for h in manager.handlers if h not in tracers.handlers]
-    return real, tracers
-
-
 def _set_config_context(
    config: RunnableConfig, run: Any = None
 ) -> Token[RunnableConfig | None]:
@@ -625,15 +593,13 @@ class RunnableSeq(Runnable):
        *steps: RunnableLike,
        name: str | None = None,
        trace_inputs: Callable[[Any], Any] | None = None,
-        trace_policy: TracePolicy | None = None,
+        trace_outputs: Callable[[Any], Any] | None = None,
    ) -> None:
        """Create a new RunnableSeq.

        Args:
            steps: The steps to include in the sequence.
            name: The name of the `Runnable`.
-            trace_inputs: Transforms the input every callback handler receives.
-            trace_policy: Processes what tracers record, after `trace_inputs`.

        Raises:
            ValueError: If the sequence has less than 2 steps.
@@ -653,67 +619,7 @@ class RunnableSeq(Runnable):
        self.steps = steps_flat
        self.name = name
        self.trace_inputs = trace_inputs
-        self.trace_policy = trace_policy or TracePolicy()
-
-    def _start(self, input: Any, config: RunnableConfig) -> CallbackManagerForChainRun:
-        callback_manager = get_callback_manager_for_config(config)
-        payload = _trace_payload(input, self.trace_inputs)
-        recorded = _trace_payload(payload, self.trace_policy.process_inputs)
-        name = config.get("run_name") or self.get_name()
-        run_id = config.pop("run_id", None)
-        if recorded is payload:
-            return callback_manager.on_chain_start(
-                None, payload, name=name, run_id=run_id
-            )
-        real, tracers = _split_handlers(callback_manager)
-        run_manager = real.on_chain_start(None, payload, name=name, run_id=run_id)
-        tracers.on_chain_start(None, recorded, name=name, run_id=run_manager.run_id)
-        run_manager.handlers = callback_manager.handlers
-        return run_manager
-
-    async def _astart(
-        self, input: Any, config: RunnableConfig
-    ) -> AsyncCallbackManagerForChainRun:
-        callback_manager = get_async_callback_manager_for_config(config)
-        payload = _trace_payload(input, self.trace_inputs)
-        recorded = _trace_payload(payload, self.trace_policy.process_inputs)
-        name = config.get("run_name") or self.get_name()
-        run_id = config.pop("run_id", None)
-        if recorded is payload:
-            return await callback_manager.on_chain_start(
-                None, payload, name=name, run_id=run_id
-            )
-        real, tracers = _split_handlers(callback_manager)
-        # Tracers start last, so a cancellation before then leaves no tracer run open.
-        run_manager = await real.on_chain_start(None, payload, name=name, run_id=run_id)
-        await tracers.on_chain_start(
-            None, recorded, name=name, run_id=run_manager.run_id
-        )
-        run_manager.handlers = callback_manager.handlers
-        return run_manager
-
-    def _end(self, run_manager: CallbackManagerForChainRun, output: Any) -> None:
-        recorded = _trace_payload(output, self.trace_policy.process_outputs)
-        if recorded is output:
-            run_manager.on_chain_end(output)
-        else:
-            real, tracers = _split_handlers(run_manager)
-            tracers.on_chain_end(recorded)
-            real.on_chain_end(output)
-
-    async def _aend(
-        self, run_manager: AsyncCallbackManagerForChainRun, output: Any
-    ) -> None:
-        recorded = _trace_payload(output, self.trace_policy.process_outputs)
-        if recorded is output:
-            await run_manager.on_chain_end(output)
-        else:
-            real, tracers = _split_handlers(run_manager)
-            # Tracers end first: on_chain_end is shielded once it starts, so a
-            # cancellation can only skip the other handlers' end, never leave a
-            # tracer run open.
-            await tracers.on_chain_end(recorded)
-            await real.on_chain_end(output)
+        self.trace_outputs = trace_outputs

    def __or__(
        self,
@@ -770,8 +676,15 @@ class RunnableSeq(Runnable):
    ) -> Any:
        if config is None:
            config = ensure_config()
+        # setup callbacks and context
+        callback_manager = get_callback_manager_for_config(config)
        # start the root run
-        run_manager = self._start(input, config)
+        run_manager = callback_manager.on_chain_start(
+            None,
+            _trace_payload(input, self.trace_inputs),
+            name=config.get("run_name") or self.get_name(),
+            run_id=config.pop("run_id", None),
+        )
        # invoke all steps in sequence
        try:
            for i, step in enumerate(self.steps):
@@ -799,7 +712,7 @@ class RunnableSeq(Runnable):
            run_manager.on_chain_error(e)
            raise
        else:
-            self._end(run_manager, input)
+            run_manager.on_chain_end(_trace_payload(input, self.trace_outputs))
            return input

    async def ainvoke(
@@ -810,8 +723,15 @@ class RunnableSeq(Runnable):
    ) -> Any:
        if config is None:
            config = ensure_config()
+        # setup callbacks
+        callback_manager = get_async_callback_manager_for_config(config)
        # start the root run
-        run_manager = await self._astart(input, config)
+        run_manager = await callback_manager.on_chain_start(
+            None,
+            _trace_payload(input, self.trace_inputs),
+            name=config.get("run_name") or self.get_name(),
+            run_id=config.pop("run_id", None),
+        )

        # invoke all steps in sequence
        try:
@@ -845,7 +765,7 @@ class RunnableSeq(Runnable):
            await run_manager.on_chain_error(e)
            raise
        else:
-            await self._aend(run_manager, input)
+            await run_manager.on_chain_end(_trace_payload(input, self.trace_outputs))
            return input

    def stream(
@@ -856,8 +776,15 @@ class RunnableSeq(Runnable):
    ) -> Iterator[Any]:
        if config is None:
            config = ensure_config()
+        # setup callbacks
+        callback_manager = get_callback_manager_for_config(config)
        # start the root run
-        run_manager = self._start(input, config)
+        run_manager = callback_manager.on_chain_start(
+            None,
+            _trace_payload(input, self.trace_inputs),
+            name=config.get("run_name") or self.get_name(),
+            run_id=config.pop("run_id", None),
+        )
        # get the run object
        for h in run_manager.handlers:
            if isinstance(h, LangChainTracer):
@@ -887,9 +814,10 @@ class RunnableSeq(Runnable):
                        )
                        iterator = step.transform(iterator, config)
                # populates streamed_output in astream_log() output if needed
-                for h in run_manager.handlers:
-                    if _is_stream_handler(h):
-                        iterator = h.tap_output_iter(run_manager.run_id, iterator)
+                if _StreamingCallbackHandler is not None:
+                    for h in run_manager.handlers:
+                        if isinstance(h, _StreamingCallbackHandler):
+                            iterator = h.tap_output_iter(run_manager.run_id, iterator)
                # consume into final output
                output = context.run(_consume_iter, iterator)
                # sequence doesn't emit output, yield to mark as generator
@@ -898,7 +826,7 @@ class RunnableSeq(Runnable):
                run_manager.on_chain_error(e)
                raise
            else:
-                self._end(run_manager, output)
+                run_manager.on_chain_end(_trace_payload(output, self.trace_outputs))

    async def astream(
        self,
@@ -908,8 +836,15 @@ class RunnableSeq(Runnable):
    ) -> AsyncIterator[Any]:
        if config is None:
            config = ensure_config()
+        # setup callbacks
+        callback_manager = get_async_callback_manager_for_config(config)
        # start the root run
-        run_manager = await self._astart(input, config)
+        run_manager = await callback_manager.on_chain_start(
+            None,
+            _trace_payload(input, self.trace_inputs),
+            name=config.get("run_name") or self.get_name(),
+            run_id=config.pop("run_id", None),
+        )
        # stream the last steps
        # transform the input stream of each step with the next
        # steps that don't natively support transforming an input stream will
@@ -945,11 +880,12 @@ class RunnableSeq(Runnable):
                            if hasattr(aiterator, "aclose"):
                                stack.push_async_callback(aiterator.aclose)
                        # populates streamed_output in astream_log() output if needed
-                        for h in run_manager.handlers:
-                            if _is_stream_handler(h):
-                                aiterator = h.tap_output_aiter(
-                                    run_manager.run_id, aiterator
-                                )
+                        if _StreamingCallbackHandler is not None:
+                            for h in run_manager.handlers:
+                                if isinstance(h, _StreamingCallbackHandler):
+                                    aiterator = h.tap_output_aiter(
+                                        run_manager.run_id, aiterator
+                                    )
                        # consume into final output
                        output = await asyncio.create_task(
                            _consume_aiter(aiterator), context=context
@@ -960,7 +896,9 @@ class RunnableSeq(Runnable):
                    await run_manager.on_chain_error(e)
                    raise
                else:
-                    await self._aend(run_manager, output)
+                    await run_manager.on_chain_end(
+                        _trace_payload(output, self.trace_outputs)
+                    )
        else:
            try:
                async with AsyncExitStack() as stack:
@@ -976,11 +914,12 @@ class RunnableSeq(Runnable):
                        if hasattr(aiterator, "aclose"):
                            stack.push_async_callback(aiterator.aclose)
                    # populates streamed_output in astream_log() output if needed
-                    for h in run_manager.handlers:
-                        if _is_stream_handler(h):
-                            aiterator = h.tap_output_aiter(
-                                run_manager.run_id, aiterator
-                            )
+                    if _StreamingCallbackHandler is not None:
+                        for h in run_manager.handlers:
+                            if isinstance(h, _StreamingCallbackHandler):
+                                aiterator = h.tap_output_aiter(
+                                    run_manager.run_id, aiterator
+                                )
                    # consume into final output
                    output = await _consume_aiter(aiterator)
                    # sequence doesn't emit output, yield to mark as generator
@@ -989,7 +928,9 @@ class RunnableSeq(Runnable):
                await run_manager.on_chain_error(e)
                raise
            else:
-                await self._aend(run_manager, output)
+                await run_manager.on_chain_end(
+                    _trace_payload(output, self.trace_outputs)
+                )


 def _consume_iter(it: Iterator[Any]) -> Any:
@@ -2,7 +2,6 @@ import collections.abc
 from collections.abc import Callable, Sequence
 from typing import Any, Generic

-from langgraph.checkpoint.serde.types import _DeltaSnapshot
 from typing_extensions import NotRequired, Required, Self

 from langgraph._internal._constants import OVERWRITE
@@ -117,9 +116,6 @@ class BinaryOperatorAggregate(Generic[Value], BaseChannel[Value, Value, Value]):
    def from_checkpoint(self, checkpoint: Value) -> Self:
        empty = self.__class__(self.typ, self.operator)
        empty.key = self.key
-        # A thread written while this field was a DeltaChannel stores snapshots.
-        if isinstance(checkpoint, _DeltaSnapshot):
-            checkpoint = checkpoint.value
        if checkpoint is not MISSING:
            empty.value = checkpoint
        return empty
@@ -60,7 +60,7 @@ class DeltaChannel(Generic[Value], BaseChannel[Any, Any, Any]):
        typ: The value type (e.g. `list`, `dict`). Inferred automatically
            from the outer type when used inside `Annotated[T, DeltaChannel(...)]`.
        snapshot_frequency: Every Nth update to this channel writes a snapshot
-            blob (default `100`). Must be a positive int.
+            blob (default `1000`). Must be a positive int.
    """

    __slots__ = ("value", "reducer", "snapshot_frequency")
@@ -71,7 +71,7 @@ class DeltaChannel(Generic[Value], BaseChannel[Any, Any, Any]):
        reducer: Callable[[Any, Sequence[Any]], Any],
        typ: type[Value] | None = None,
        *,
-        snapshot_frequency: int = 100,
+        snapshot_frequency: int = 1000,
    ) -> None:
        if snapshot_frequency <= 0:
            raise ValueError(
@@ -28,7 +28,6 @@ __all__ = (
    "ParentCommand",
    "EmptyInputError",
    "TaskNotFound",
-    "UnknownInterruptError",
    "is_invalid_resume",
 )

@@ -147,45 +146,6 @@ class TaskNotFound(Exception):
    pass


-class UnknownInterruptError(Exception):
-    """Raised in strict resume mode when a resume doesn't match the pending interrupts.
-
-    `reason` says how it doesn't match:
-
-    - `"not_pending"`: the resume names interrupts that aren't pending, listed in
-      `interrupt_ids`.
-    - `"empty_map"`: the resume is an empty map.
-    - `"ambiguous"`: the resume is a single value while several interrupts are
-      pending.
-
-    `pending_ids` lists the interrupts still waiting for an answer. The error is
-    raised before anything is written, so they can still be answered.
-
-    A single value with no interrupt pending is accepted, because it resumes a
-    graph paused at a static breakpoint (`interrupt_before` or `interrupt_after`).
-
-    The interrupts one task raises share an id, so an answer retried after the
-    task asked its next question answers that question.
-    """
-
-    reason: Literal["not_pending", "empty_map", "ambiguous"]
-    interrupt_ids: tuple[str, ...]
-    pending_ids: tuple[str, ...]
-
-    def __init__(
-        self,
-        message: str,
-        *,
-        reason: Literal["not_pending", "empty_map", "ambiguous"],
-        interrupt_ids: Sequence[str] = (),
-        pending_ids: Sequence[str] = (),
-    ) -> None:
-        super().__init__(message)
-        self.reason = reason
-        self.interrupt_ids = tuple(interrupt_ids)
-        self.pending_ids = tuple(pending_ids)
-
-
@dataclass(frozen=True, slots=True)
 class NodeError:
    """Failure context passed to a node-level error handler.
@@ -22,7 +22,7 @@ from langchain_core.messages import (
 )
 from typing_extensions import TypedDict, deprecated

-from langgraph._internal._constants import CONF, CONFIG_KEY_SEND
+from langgraph._internal._constants import CONF, CONFIG_KEY_SEND, NS_SEP
 from langgraph.graph.state import StateGraph
 from langgraph.pregel._messages import (
    _messages_delta_reducer as _messages_delta_reducer,
@@ -343,7 +343,7 @@ def push_message(
    )

    from langgraph.config import get_config
-    from langgraph.pregel._messages import StreamMessagesHandler, graph_namespace
+    from langgraph.pregel._messages import StreamMessagesHandler

    config = get_config()
    message = next(x for x in convert_to_messages([message]))
@@ -359,12 +359,15 @@ def push_message(
    ):
        handlers = config["callbacks"]

-    metadata = config["metadata"]
-    for handler in handlers:
-        if isinstance(handler, StreamMessagesHandler):
-            ns = graph_namespace(metadata)
-            if handler.subgraphs or not ns or ns == handler.parent_ns:
-                handler._emit((ns, metadata), message, dedupe=False)
+    if stream_handler := next(
+        (x for x in handlers if isinstance(x, StreamMessagesHandler)), None
+    ):
+        metadata = config["metadata"]
+        message_meta = (
+            tuple(cast(str, metadata["langgraph_checkpoint_ns"]).split(NS_SEP)),
+            metadata,
+        )
+        stream_handler._emit(message_meta, message, dedupe=False)

    if state_key:
        config[CONF][CONFIG_KEY_SEND]([(state_key, message)])
@@ -1185,6 +1185,7 @@ class StateGraph(Generic[StateT, ContextT, InputT, OutputT]):
        debug: bool = False,
        name: str | None = None,
        transformers: Sequence[Callable[[tuple[str, ...]], Any]] | None = None,
+        insert_before: Sequence[str] | None = None,
    ) -> CompiledStateGraph[StateT, ContextT, InputT, OutputT]:
        """Compiles the `StateGraph` into a `CompiledStateGraph` object.

@@ -1224,6 +1225,12 @@ class StateGraph(Generic[StateT, ContextT, InputT, OutputT]):
                the standard `StreamTransformer` constructor shape by
                accepting `scope` as their first argument. Appended after the
                built-in stream transformers.
+            insert_before: Nodes before which input from `RunControl.submit_input`
+                may be applied mid-run, e.g. an agent's model node.
+
+                !!! warning "Experimental"
+
+                    This parameter may change without notice.

        Returns:
            CompiledStateGraph: The compiled `StateGraph`.
@@ -1256,6 +1263,13 @@ class StateGraph(Generic[StateT, ContextT, InputT, OutputT]):
        # assign default values
        interrupt_before = interrupt_before or []
        interrupt_after = interrupt_after or []
+        if isinstance(insert_before, str):
+            msg = "`insert_before` takes a sequence of node names, not a string"
+            raise TypeError(msg)
+        insert_before = list(insert_before or ())
+        if unknown := [node for node in insert_before if node not in self.nodes]:
+            msg = f"`insert_before` names nodes not in the graph: {unknown}"
+            raise ValueError(msg)

        # validate the graph
        self.validate(
@@ -1360,6 +1374,7 @@ class StateGraph(Generic[StateT, ContextT, InputT, OutputT]):
            checkpointer=checkpointer,
            interrupt_before_nodes=interrupt_before,
            interrupt_after_nodes=interrupt_after,
+            insert_before_nodes=insert_before,
            auto_validate=False,
            debug=debug,
            store=store,
@@ -1441,6 +1456,15 @@ class CompiledStateGraph(
            name=self.get_name("Output"),
        )

+    def _inserted_input_channels(self) -> Sequence[str]:
+        """The graph's input keys: inserted input may write only these."""
+        keys = [
+            key
+            for key, value in self.builder.schemas[self.builder.input_schema].items()
+            if not is_managed_value(value)
+        ]
+        return () if keys == ["__root__"] else keys
+
    def attach_node(self, key: str, node: StateNodeSpec[Any, ContextT] | None) -> None:
        if key == START:
            output_keys = [
@@ -85,7 +85,6 @@ from langgraph.types import (
    RetryPolicy,
    Send,
    TimeoutPolicy,
-    _interrupt_id,
 )

 GetNextVersion = Callable[[V | None, None], V]
@@ -627,7 +626,7 @@ def prepare_single_task(
                config[CONF].get(CONFIG_KEY_SCRATCHPAD),
                pending_writes,
                task_id,
-                task_checkpoint_ns,
+                xxh3_128_hexdigest(task_checkpoint_ns.encode()),
                config[CONF].get(CONFIG_KEY_RESUME_MAP),
                step,
                stop,
@@ -874,7 +873,7 @@ def prepare_push_task_functional(
            configurable.get(CONFIG_KEY_SCRATCHPAD),
            pending_writes,
            task_id,
-            task_checkpoint_ns,
+            xxh3_128_hexdigest(task_checkpoint_ns.encode()),
            configurable.get(CONFIG_KEY_RESUME_MAP),
            step,
            stop,
@@ -1036,7 +1035,7 @@ def prepare_push_task_send(
            config[CONF].get(CONFIG_KEY_SCRATCHPAD),
            pending_writes,
            task_id,
-            task_checkpoint_ns,
+            xxh3_128_hexdigest(task_checkpoint_ns.encode()),
            config[CONF].get(CONFIG_KEY_RESUME_MAP),
            step,
            stop,
@@ -1185,7 +1184,7 @@ def prepare_node_error_handler_task(
        config[CONF].get(CONFIG_KEY_SCRATCHPAD),
        pending_writes,
        task_id,
-        task_checkpoint_ns,
+        xxh3_128_hexdigest(task_checkpoint_ns.encode()),
        config[CONF].get(CONFIG_KEY_RESUME_MAP),
        step,
        stop,
@@ -1281,7 +1280,7 @@ def _scratchpad(
    parent_scratchpad: PregelScratchpad | None,
    pending_writes: list[PendingWrite],
    task_id: str,
-    task_checkpoint_ns: str,
+    namespace_hash: str,
    resume_map: dict[str, Any] | None,
    step: int,
    stop: int,
@@ -1308,15 +1307,10 @@ def _scratchpad(
            task_resume_write = []
        del w

-        # find the resume value for the task's next interrupt
-        if resume_map:
-            next_id = _interrupt_id(task_checkpoint_ns, len(task_resume_write))
-            first_id = _interrupt_id(task_checkpoint_ns, 0)
-            if next_id in resume_map:
-                task_resume_write.append(resume_map[next_id])
-            # Older versions gave all of a task's interrupts the first id.
-            elif first_id in resume_map:
-                task_resume_write.append(resume_map[first_id])
+        # find namespace and task-specific resume value
+        if resume_map and namespace_hash in resume_map:
+            mapped_resume_write = resume_map[namespace_hash]
+            task_resume_write.append(mapped_resume_write)

    else:
        null_resume_write = None
@@ -4,7 +4,7 @@ import uuid
 from collections.abc import Callable, Iterable, Mapping, Sequence
 from datetime import datetime, timezone
 from inspect import signature
-from typing import Any, Literal
+from typing import Any, Literal, cast

 from langchain_core.runnables import RunnableConfig
 from langgraph.checkpoint.base import (
@@ -12,7 +12,6 @@ from langgraph.checkpoint.base import (
    ChannelVersions,
    Checkpoint,
    CheckpointTuple,
-    DeltaChannelHistory,
    PendingWrite,
 )
 from langgraph.checkpoint.base.id import uuid6
@@ -33,7 +32,7 @@ from langgraph._internal._constants import (
 )
 from langgraph._internal._typing import MISSING
 from langgraph.channels.base import BaseChannel
-from langgraph.channels.binop import BinaryOperatorAggregate, _get_overwrite
+from langgraph.channels.binop import _get_overwrite
 from langgraph.channels.delta import DeltaChannel
 from langgraph.managed.base import ManagedValueMapping, ManagedValueSpec

@@ -410,39 +409,23 @@ def versions_seen_without_bumps(
 def _delta_channels_to_replay(
    specs: Mapping[str, BaseChannel], checkpoint: Checkpoint
 ) -> list[str]:
-    """Channels whose value at `checkpoint` the ancestor walk rebuilds.
+    """DeltaChannels whose value at `checkpoint` the ancestor walk rebuilds.

    A `_DeltaSnapshot` blob or a plain value (migration) resolves directly via
    `from_checkpoint`, so only a channel with nothing stored here needs the
    walk. A channel with no version was never written, so it is empty without
    one; a walk for it would find no snapshot to stop at and read every
    ancestor, every time the thread is loaded.
-
-    A `BinaryOperatorAggregate` stores its value at every version, so one with
-    nothing stored was written as a `DeltaChannel` before its annotation
-    changed, and is rebuilt the same way.
    """
    return [
        k
        for k, spec in specs.items()
-        if isinstance(spec, (DeltaChannel, BinaryOperatorAggregate))
+        if isinstance(spec, DeltaChannel)
        and k in checkpoint["channel_versions"]
        and checkpoint["channel_values"].get(k, MISSING) is MISSING
    ]


-def _replay(spec: BaseChannel, history: DeltaChannelHistory) -> BaseChannel:
-    ch = spec.from_checkpoint(history.get("seed", MISSING))
-    if isinstance(ch, DeltaChannel):
-        ch.replay_writes(history["writes"])
-    else:
-        # One update per write: the writes span many supersteps, and a single
-        # call would reject a second Overwrite and drop the writes after one.
-        for _, _, value in history["writes"]:
-            ch.update([value])
-    return ch
-
-
 def _require_saver_for_history(
    delta_channels: list[str],
    saver: BaseCheckpointSaver | None,
@@ -482,7 +465,7 @@ def channels_from_checkpoint(

    delta_channels = _delta_channels_to_replay(channel_specs, checkpoint)
    _require_saver_for_history(delta_channels, saver, config)
-    histories: Mapping[str, DeltaChannelHistory] = {}
+    histories: Mapping[str, Any] = {}
    if delta_channels and saver is not None and config is not None:
        histories = saver.get_delta_channel_history(
            config=config, channels=delta_channels
@@ -492,7 +475,11 @@ def channels_from_checkpoint(
    for k, spec in channel_specs.items():
        ch: BaseChannel
        if k in histories:
-            ch = _replay(spec, histories[k])
+            delta_spec = cast(DeltaChannel, spec)
+            history = histories[k]
+            replay_ch = delta_spec.from_checkpoint(history.get("seed", MISSING))
+            replay_ch.replay_writes(history["writes"])
+            ch = replay_ch
        else:
            ch = spec.from_checkpoint(checkpoint["channel_values"].get(k, MISSING))
        channels[k] = ch
@@ -517,7 +504,7 @@ async def achannels_from_checkpoint(

    delta_channels = _delta_channels_to_replay(channel_specs, checkpoint)
    _require_saver_for_history(delta_channels, saver, config)
-    histories: Mapping[str, DeltaChannelHistory] = {}
+    histories: Mapping[str, Any] = {}
    if delta_channels and saver is not None and config is not None:
        histories = await saver.aget_delta_channel_history(
            config=config, channels=delta_channels
@@ -527,7 +514,11 @@ async def achannels_from_checkpoint(
    for k, spec in channel_specs.items():
        ch: BaseChannel
        if k in histories:
-            ch = _replay(spec, histories[k])
+            delta_spec = cast(DeltaChannel, spec)
+            history = histories[k]
+            replay_ch = delta_spec.from_checkpoint(history.get("seed", MISSING))
+            replay_ch.replay_writes(history["writes"])
+            ch = replay_ch
        else:
            ch = spec.from_checkpoint(checkpoint["channel_values"].get(k, MISSING))
        channels[k] = ch
@@ -228,10 +228,6 @@ def draw_graph(
            metadata["__interrupt"] = "before"
        elif name in interrupt_after_nodes:
            metadata["__interrupt"] = "after"
-        # Duck-typed so core doesn't import ToolNode from langgraph-prebuilt.
-        tools_by_name = getattr(node.bound, "tools_by_name", None)
-        if isinstance(tools_by_name, Mapping) and tools_by_name:
-            metadata["__tools"] = list(tools_by_name)
        graph.add_node(node.bound, name, metadata=metadata or None)
    # add start node
    if START not in nodes:
@@ -3,7 +3,6 @@ from __future__ import annotations
 import asyncio
 import concurrent.futures
 import time
-import weakref
 from collections.abc import Awaitable, Callable, Coroutine
 from contextlib import AbstractAsyncContextManager, AbstractContextManager, ExitStack
 from contextvars import copy_context
@@ -38,13 +37,6 @@ class Submit(Protocol[P, T]):
    ) -> concurrent.futures.Future[T]: ...


-# Futures whose exception a node's error handler took over; the executors
-# don't re-raise them on exit.
-SKIP_RERAISE_SET: weakref.WeakSet[concurrent.futures.Future | asyncio.Future] = (
-    weakref.WeakSet()
-)
-
-
 class BackgroundExecutor(AbstractContextManager):
    """A context manager that runs sync tasks in the background.
    Uses a thread pool executor to delegate tasks to separate threads.
@@ -119,7 +111,7 @@ class BackgroundExecutor(AbstractContextManager):
        if exc_type is None:
            # re-raise the first exception that occurred in a task
            for task, (_, reraise) in tasks.items():
-                if not reraise or task in SKIP_RERAISE_SET:
+                if not reraise:
                    continue
                try:
                    task.result()
@@ -210,7 +202,7 @@ class AsyncBackgroundExecutor(AbstractAsyncContextManager):
        if exc_type is None:
            # re-raise the first exception that occurred in a task
            for task, (_, reraise) in tasks.items():
-                if not reraise or task in SKIP_RERAISE_SET:
+                if not reraise:
                    continue
                try:
                    if exc := task.exception():
@@ -48,7 +48,6 @@ from langgraph._internal._constants import (
    CONFIG_KEY_RUNTIME,
    CONFIG_KEY_SCRATCHPAD,
    CONFIG_KEY_STREAM,
-    CONFIG_KEY_STRICT_RESUME,
    CONFIG_KEY_TASK_ID,
    CONFIG_KEY_THREAD_ID,
    ERROR,
@@ -58,6 +57,7 @@ from langgraph._internal._constants import (
    NS_END,
    NS_SEP,
    NULL_TASK_ID,
+    PULL,
    PUSH,
    RESUME,
    TASKS,
@@ -78,7 +78,6 @@ from langgraph.constants import TAG_HIDDEN
 from langgraph.errors import (
    EmptyInputError,
    GraphInterrupt,
-    UnknownInterruptError,
 )
 from langgraph.managed.base import (
    ManagedValueMapping,
@@ -124,6 +123,7 @@ from langgraph.pregel._io import (
    map_output_values,
    read_channels,
 )
+from langgraph.pregel._log import logger
 from langgraph.pregel._messages import ensure_message_ids
 from langgraph.pregel._read import PregelNode
 from langgraph.pregel._task_status import read_task_statuses
@@ -189,6 +189,8 @@ class PregelLoop:
    manager: None | AsyncParentRunManager | ParentRunManager
    interrupt_after: All | Sequence[str]
    interrupt_before: All | Sequence[str]
+    insert_before: Sequence[str]
+    insert_channels: Sequence[str]
    durability: Durability
    retry_policy: Sequence[RetryPolicy]
    cache_policy: CachePolicy | None
@@ -259,10 +261,8 @@ class PregelLoop:
    _resume_loaded_writes: Sequence[PendingWrite] = ()
    # Tasks `_reapply_writes_to_succeeded_nodes` handed loaded writes back to.
    _reapplied_task_ids: set[str]
-    # Tasks that wrote during this run, the only ones exit mode saves at exit.
-    _written_task_ids: set[str]
-    # A checkpoint addressed by `checkpoint_id` that the thread has moved past,
-    # so it may already have children.
+    # An update or fork checkpoint addressed by `checkpoint_id` that the thread
+    # has moved past, so it may already have children.
    _addressed_checkpoint_superseded: bool = False

    # The checkpoint_config that points at the parent loaded at `__enter__`
@@ -330,6 +330,8 @@ class PregelLoop:
        durability: Durability,
        interrupt_after: All | Sequence[str] = EMPTY_SEQ,
        interrupt_before: All | Sequence[str] = EMPTY_SEQ,
+        insert_before: Sequence[str] = EMPTY_SEQ,
+        insert_channels: Sequence[str] = EMPTY_SEQ,
        manager: None | AsyncParentRunManager | ParentRunManager = None,
        migrate_checkpoint: Callable[[Checkpoint], None] | None = None,
        retry_policy: Sequence[RetryPolicy] = (),
@@ -351,8 +353,11 @@ class PregelLoop:
        self.stream_keys = stream_keys
        self.interrupt_after = interrupt_after
        self.interrupt_before = interrupt_before
+        self.insert_before = insert_before
+        self.insert_channels = insert_channels
        self.manager = manager
        self.is_nested = CONFIG_KEY_TASK_ID in self.config.get(CONF, {})
+        self.is_replaying = CONFIG_KEY_CHECKPOINT_ID in config[CONF]
        self._migrate_checkpoint = migrate_checkpoint
        self.trigger_to_nodes = trigger_to_nodes
        self.retry_policy = retry_policy
@@ -410,14 +415,6 @@ class PregelLoop:
            else ()
        )
        self.prev_checkpoint_config = None
-        # Whether the run points this loop at a checkpoint: a truthy
-        # `checkpoint_id`, this graph's `checkpoint_map` entry, or a replaying
-        # parent. Every task config carries `checkpoint_id: None`, so a key
-        # check would count every subgraph.
-        self._addressed = bool(
-            self.checkpoint_config[CONF].get(CONFIG_KEY_CHECKPOINT_ID)
-            or self.config[CONF].get(CONFIG_KEY_REPLAY_STATE)
-        )
        runtime = self.config[CONF].get(CONFIG_KEY_RUNTIME)
        self.control = runtime.control if isinstance(runtime, Runtime) else None

@@ -466,7 +463,6 @@ class PregelLoop:
        """Put writes for a task, to be read by the next tick."""
        if not writes:
            return
-        self._written_task_ids.add(task_id)
        # deduplicate writes to special channels, last write wins
        if all(w[0] in WRITES_IDX_MAP for w in writes):
            writes = list({w[0]: w for w in writes}.values())
@@ -480,11 +476,6 @@ class PregelLoop:
                for w in self.checkpoint_pending_writes
                if w[0] != task_id or w[1] not in WRITES_IDX_MAP
            ]
-            # Savers key a regular write by its position in the list, and the
-            # special ones dropped above won't be there next time, so they go
-            # last: a resume saved ahead of an update would move it to a new
-            # slot once the list is saved again, and it would apply twice.
-            writes = sorted(writes, key=lambda w: w[0] in WRITES_IDX_MAP)
            writes_to_save: WritesT = [
                w[1:] for w in self.checkpoint_pending_writes if w[0] == task_id
            ] + list(writes)
@@ -573,12 +564,10 @@ class PregelLoop:
                CONFIG_KEY_CHECKPOINT_ID: self.checkpoint["id"],
            },
        )
-        # Writes loaded with the checkpoint are stored on it already. Saving them
-        # again can file them under new indexes, and then they apply twice.
+        # group by task id
        by_task = defaultdict(list)
        for task_id, channel, value in self.checkpoint_pending_writes:
-            if task_id in self._written_task_ids:
-                by_task[task_id].append((channel, value))
+            by_task[task_id].append((channel, value))
        # submit writes to checkpointer
        for task_id, writes in by_task.items():
            if self.checkpointer_put_writes_accepts_task_path and hasattr(
@@ -659,11 +648,48 @@ class PregelLoop:
        # check if iteration limit is reached
        if self.step > self.stop:
            self.status = "out_of_steps"
-            # stream the checkpoint the last step saved, as a tick that runs would
-            self._prepare_tasks_and_emit_checkpoint()
            return False

-        self._prepare_tasks_and_emit_checkpoint()
+        # prepare next tasks
+        self.tasks = prepare_next_tasks(
+            self.checkpoint,
+            self.checkpoint_pending_writes,
+            self.nodes,
+            self.channels,
+            self.managed,
+            self.config,
+            self.step,
+            self.stop,
+            for_execution=True,
+            manager=self.manager,
+            store=self.store,
+            checkpointer=self.checkpointer,
+            trigger_to_nodes=self.trigger_to_nodes,
+            updated_channels=self.updated_channels,
+            retry_policy=self.retry_policy,
+            cache_policy=self.cache_policy,
+        )
+
+        # produce debug output
+        if self._checkpointer_put_after_previous is not None:
+            self._emit(
+                "checkpoints",
+                map_debug_checkpoint,
+                {
+                    **self.checkpoint_config,
+                    CONF: {
+                        **self.checkpoint_config[CONF],
+                        CONFIG_KEY_CHECKPOINT_ID: self.checkpoint["id"],
+                    },
+                },
+                self.channels,
+                self.stream_keys,
+                self.checkpoint_metadata,
+                self.tasks.values(),
+                self.checkpoint_pending_writes,
+                self.prev_checkpoint_config,
+                self.output_keys,
+            )

        # if no more tasks, we're done
        if not self.tasks:
@@ -689,6 +715,11 @@ class PregelLoop:
            self.status = "draining"
            return False

+        # apply input inserted into the running run, then plan the step again
+        # from the new state
+        if self._accepts_inserted_input() and self._apply_inserted_input():
+            return self.tick()
+
        # produce debug output
        self._emit("tasks", map_debug_tasks, self.tasks.values())

@@ -771,53 +802,10 @@ class PregelLoop:
            self.checkpoint, self.interrupt_after, self.tasks.values()
        ):
            self.status = "interrupt_after"
-            # the next tick, which streams this checkpoint, never runs
-            self._prepare_tasks_and_emit_checkpoint()
            raise GraphInterrupt()
        # unset resuming flag
        self.config[CONF].pop(CONFIG_KEY_RESUMING, None)

-    def _prepare_tasks_and_emit_checkpoint(self) -> None:
-        self.tasks = prepare_next_tasks(
-            self.checkpoint,
-            self.checkpoint_pending_writes,
-            self.nodes,
-            self.channels,
-            self.managed,
-            self.config,
-            self.step,
-            self.stop,
-            for_execution=True,
-            manager=self.manager,
-            store=self.store,
-            checkpointer=self.checkpointer,
-            trigger_to_nodes=self.trigger_to_nodes,
-            updated_channels=self.updated_channels,
-            retry_policy=self.retry_policy,
-            cache_policy=self.cache_policy,
-        )
-
-        # produce debug output
-        if self._checkpointer_put_after_previous is not None:
-            self._emit(
-                "checkpoints",
-                map_debug_checkpoint,
-                {
-                    **self.checkpoint_config,
-                    CONF: {
-                        **self.checkpoint_config[CONF],
-                        CONFIG_KEY_CHECKPOINT_ID: self.checkpoint["id"],
-                    },
-                },
-                self.channels,
-                self.stream_keys,
-                self.checkpoint_metadata,
-                self.tasks.values(),
-                self.checkpoint_pending_writes,
-                self.prev_checkpoint_config,
-                self.output_keys,
-            )
-
    def match_cached_writes(self) -> Sequence[PregelExecutableTask]:
        raise NotImplementedError

@@ -826,6 +814,110 @@ class PregelLoop:

    # private

+    def _accepts_inserted_input(self) -> bool:
+        """Whether queued input can be applied before the next step.
+
+        Only in a top-level `StateGraph`, only when every next task is a node
+        declared in `insert_before` that reads the state (not a `Send`, which
+        gets its own argument), and never on the step a resume continues: the
+        resume applies to the state it paused on.
+        """
+        return (
+            self.control is not None
+            and self.control.has_inputs
+            and not self.is_nested
+            and bool(self.insert_before)
+            and bool(self.insert_channels)
+            and not self.config[CONF].get(CONFIG_KEY_RESUMING, False)
+            and all(
+                task.path[0] == PULL and task.name in self.insert_before
+                for task in self.tasks.values()
+            )
+        )
+
+    def _apply_inserted_input(self) -> bool:
+        """Apply queued input to the state and save it as an `input` checkpoint.
+
+        Each input gets its own write, so two that set the same plain key don't
+        raise; the later one wins. Returns whether any was applied, so `tick()`
+        plans the step again.
+        """
+        applied: list[str] = []
+        writes: list[tuple[str, Any]] = []
+        inserted_channels: set[str] = set()
+        for input_id, value in cast(RunControl, self.control).take_inputs():
+            if not (input_writes := self._inserted_writes(input_id, value)):
+                continue
+            inserted_channels |= apply_writes(
+                self.checkpoint,
+                self.channels,
+                [PregelTaskWrites((), INPUT, input_writes, [])],
+                self.checkpointer_get_next_version,
+                self.trigger_to_nodes,
+            )
+            writes.extend(input_writes)
+            applied.append(input_id)
+        if not applied:
+            return False
+        # snapshot delta channels this input wrote, so they read back without
+        # their writes stored separately
+        self._delta_channels_forced_snapshot.update(
+            channel
+            for channel, _ in writes
+            if isinstance(self.specs.get(channel), DeltaChannel)
+        )
+        # add to the last step's updated channels, which trigger the planned tasks
+        self.updated_channels = (self.updated_channels or set()) | inserted_channels
+        if not inserted_channels.isdisjoint(
+            (self.output_keys,)
+            if isinstance(self.output_keys, str)
+            else self.output_keys
+        ):
+            self._emit(
+                "values", map_output_values, self.output_keys, writes, self.channels
+            )
+        self._put_checkpoint(
+            cast(
+                CheckpointMetadata,
+                {"source": "input", "inserted_inputs": applied},
+            )
+        )
+        # the checkpoint took a step, but no node ran: keep the recursion budget
+        self.stop += 1
+        return True
+
+    def _inserted_writes(self, input_id: str, value: Any) -> list[tuple[str, Any]]:
+        """State updates for inserted input, or none if the state rejects it.
+
+        Written straight to the state channels: through `__start__`, the graph
+        would route back to its entry.
+        """
+        if not isinstance(value, dict):
+            logger.warning(
+                "Skipping inserted input %s: expected a dict of state keys, got %s",
+                input_id,
+                type(value).__name__,
+            )
+            return []
+        if ignored := [key for key in value if key not in self.insert_channels]:
+            logger.warning(
+                "Ignoring keys of inserted input %s that aren't graph input keys: %s",
+                input_id,
+                ignored,
+            )
+        writes = [(k, v) for k, v in value.items() if k in self.insert_channels]
+        try:
+            for key, val in writes:
+                self.channels[key].copy().update([val])
+        except Exception:
+            logger.warning(
+                "Skipping inserted input %s: the state rejected it",
+                input_id,
+                exc_info=True,
+            )
+            return []
+        return writes
+
    @property
    def _reapplies_pending_writes(self) -> bool:
        """Whether the writes loaded with the checkpoint go back to the tasks
@@ -929,7 +1021,6 @@ class PregelLoop:
            if tid != NULL_TASK_ID and isinstance(self.specs.get(ch), DeltaChannel)
        }
        self._exit_command_writes = []
-        self._written_task_ids = set()
        # Resuming from a previous checkpoint requires two things:
        # 1. A prior checkpoint exists (channel_versions is non-empty)
        # 2. The input signals continuation (not a fresh run with new input)
@@ -957,7 +1048,7 @@ class PregelLoop:
        # writes so that interrupt() calls re-fire instead of returning
        # stale values. But if we're actively resuming, keep them —
        # multi-interrupt scenarios need previously resolved values preserved.
-        is_time_traveling = self._addressed and (
+        is_time_traveling = self.is_replaying and (
            # Time-travel to a subgraph checkpoint: the parent sets
            # RESUMING=True (it can't distinguish time-travel from resume),
            # so we check if this subgraph's own ns is in checkpoint_map.
@@ -976,10 +1067,6 @@ class PregelLoop:
                or configurable.get(CONFIG_KEY_RESUMING, False)
            )
        )
-        # Finished tasks rerun only on time travel, or on a resume at a
-        # checkpoint the thread has moved past. A resume addressed at the
-        # thread's latest checkpoint hands their writes back, as without an id.
-        self.is_replaying = is_time_traveling or self._addressed_checkpoint_superseded
        if is_time_traveling:
            self.checkpoint_pending_writes = [
                w for w in self.checkpoint_pending_writes if w[1] != RESUME
@@ -1026,45 +1113,17 @@ class PregelLoop:
                        "Cannot use Command(resume=...) without checkpointer"
                    )

-                strict = (
-                    self.config[CONF].get(CONFIG_KEY_STRICT_RESUME, False)
-                    # Nested calls inherit the parent's configurable.
-                    and not self.is_nested
-                    # A finished task can rerun and interrupt again on replay, while
-                    # its earlier output still makes its interrupt look answered.
-                    and not self._addressed_checkpoint_superseded
-                )
                if resume_is_map := (
                    isinstance(resume, dict)
                    and all(is_xxh3_128_hexdigest(k) for k in resume)
                ):
-                    if strict:
-                        pending = self._pending_interrupts()
-                        if not resume:
-                            raise UnknownInterruptError(
-                                "The resume map names no interrupt",
-                                reason="empty_map",
-                                pending_ids=sorted(pending),
-                            )
-                        if unknown := sorted(resume.keys() - pending):
-                            raise UnknownInterruptError(
-                                f"Unknown or already-consumed interrupt: {unknown[0]}",
-                                reason="not_pending",
-                                interrupt_ids=unknown,
-                                pending_ids=sorted(pending),
-                            )
                    self.config[CONF][CONFIG_KEY_RESUME_MAP] = resume
                else:
-                    if len(pending := self._pending_interrupts()) > 1:
-                        message = (
+                    if len(self._pending_interrupts()) > 1:
+                        raise RuntimeError(
                            "When there are multiple pending interrupts, you must specify the interrupt id when resuming. "
-                            "Docs: https://docs.langchain.com/oss/python/langgraph/interrupts#handling-multiple-interrupts."
+                            "Docs: https://docs.langchain.com/oss/python/langgraph/add-human-in-the-loop#resume-multiple-interrupts-with-one-invocation."
                        )
-                        if strict:
-                            raise UnknownInterruptError(
-                                message, reason="ambiguous", pending_ids=sorted(pending)
-                            )
-                        raise RuntimeError(message)

            writes: defaultdict[str, list[tuple[str, Any]]] = defaultdict(list)
            # group writes by task ID
@@ -1223,11 +1282,11 @@ class PregelLoop:
            # checkpoint ID since the fork was created after the subgraph's
            # checkpoints from the original execution.
            #
-            # Only gate on is_time_traveling (not _addressed). When the
+            # Only gate on is_time_traveling (not is_replaying). When the
            # client resumes with an explicit checkpoint_id that happens to
            # point at the current head (e.g. LangGraph Studio sending
            # `checkpoint: {checkpoint_id}` alongside Command(resume=...)),
-            # the run is addressed but not time traveling. In that
+            # is_replaying is True but is_time_traveling is False. In that
            # case subgraphs should load their latest checkpoint normally,
            # not go through ReplayState's before-bound lookup which would
            # miss subgraph checkpoints created during processing of the
@@ -1696,6 +1755,8 @@ class SyncPregelLoop(PregelLoop, AbstractContextManager):
        manager: None | AsyncParentRunManager | ParentRunManager = None,
        interrupt_after: All | Sequence[str] = EMPTY_SEQ,
        interrupt_before: All | Sequence[str] = EMPTY_SEQ,
+        insert_before: Sequence[str] = EMPTY_SEQ,
+        insert_channels: Sequence[str] = EMPTY_SEQ,
        input_keys: str | Sequence[str] = EMPTY_SEQ,
        output_keys: str | Sequence[str] = EMPTY_SEQ,
        stream_keys: str | Sequence[str] = EMPTY_SEQ,
@@ -1718,6 +1779,8 @@ class SyncPregelLoop(PregelLoop, AbstractContextManager):
            stream_keys=stream_keys,
            interrupt_after=interrupt_after,
            interrupt_before=interrupt_before,
+            insert_before=insert_before,
+            insert_channels=insert_channels,
            manager=manager,
            migrate_checkpoint=migrate_checkpoint,
            trigger_to_nodes=trigger_to_nodes,
@@ -1847,7 +1910,7 @@ class SyncPregelLoop(PregelLoop, AbstractContextManager):
            # This covers both normal replay and subgraphs resolved via
            # checkpoint_map during time-travel.
            saved = self.checkpointer.get_tuple(self.checkpoint_config)
-            if saved is not None:
+            if saved is not None and saved.metadata.get("source") in ("update", "fork"):
                self._addressed_checkpoint_superseded = checkpoint_superseded(
                    self.checkpointer, self.checkpoint_config, saved
                )
@@ -1951,6 +2014,8 @@ class AsyncPregelLoop(PregelLoop, AbstractAsyncContextManager):
        durability: Durability,
        interrupt_after: All | Sequence[str] = EMPTY_SEQ,
        interrupt_before: All | Sequence[str] = EMPTY_SEQ,
+        insert_before: Sequence[str] = EMPTY_SEQ,
+        insert_channels: Sequence[str] = EMPTY_SEQ,
        manager: None | AsyncParentRunManager | ParentRunManager = None,
        input_keys: str | Sequence[str] = EMPTY_SEQ,
        output_keys: str | Sequence[str] = EMPTY_SEQ,
@@ -1974,6 +2039,8 @@ class AsyncPregelLoop(PregelLoop, AbstractAsyncContextManager):
            stream_keys=stream_keys,
            interrupt_after=interrupt_after,
            interrupt_before=interrupt_before,
+            insert_before=insert_before,
+            insert_channels=insert_channels,
            manager=manager,
            migrate_checkpoint=migrate_checkpoint,
            trigger_to_nodes=trigger_to_nodes,
@@ -2103,7 +2170,7 @@ class AsyncPregelLoop(PregelLoop, AbstractAsyncContextManager):
            # This covers both normal replay and subgraphs resolved via
            # checkpoint_map during time-travel.
            saved = await self.checkpointer.aget_tuple(self.checkpoint_config)
-            if saved is not None:
+            if saved is not None and saved.metadata.get("source") in ("update", "fork"):
                self._addressed_checkpoint_superseded = await acheckpoint_superseded(
                    self.checkpointer, self.checkpoint_config, saved
                )
@@ -23,7 +23,7 @@ from langchain_core.outputs import ChatGeneration, ChatGenerationChunk, LLMResul
 from pydantic import BaseModel

 from langgraph._internal._config import filter_to_user_tags
-from langgraph._internal._constants import NS_SEP, PUSH
+from langgraph._internal._constants import NS_SEP
 from langgraph.channels.binop import _get_overwrite
 from langgraph.channels.delta import DeltaChannel
 from langgraph.constants import TAG_HIDDEN, TAG_NOSTREAM
@@ -55,23 +55,6 @@ def _state_values(obj: Any) -> Sequence[Any]:
    return ()


-def graph_namespace(metadata: Mapping[str, Any]) -> tuple[str, ...]:
-    """Namespace of the graph a task runs in, from the task's run metadata.
-
-    Drops the task's own segment, plus one per enclosing `@task` call: a call
-    runs in its caller's graph but nests its segment under the caller's. A
-    call's `langgraph_path` is `(PUSH, <caller's path>, <index>, True)`, while
-    a `Send` task's ends in `False`.
-    """
-    ns = tuple(cast(str, metadata["langgraph_checkpoint_ns"]).split(NS_SEP))
-    path = metadata.get("langgraph_path", ())
-    drop = 1
-    while len(path) == 4 and path[0] == PUSH and path[-1] is True:
-        drop += 1
-        path = path[1]
-    return ns[:-drop]
-
-
 class StreamMessagesHandler(BaseCallbackHandler, _StreamingCallbackHandler):
    """A callback handler that implements stream_mode=messages.

@@ -165,7 +148,9 @@ class StreamMessagesHandler(BaseCallbackHandler, _StreamingCallbackHandler):
        **kwargs: Any,
    ) -> Any:
        if metadata and (not tags or (TAG_NOSTREAM not in tags)):
-            ns = graph_namespace(metadata)
+            ns = tuple(cast(str, metadata["langgraph_checkpoint_ns"]).split(NS_SEP))[
+                :-1
+            ]
            if not self.subgraphs and len(ns) > 0 and ns != self.parent_ns:
                return
            if (filtered_tags := filter_to_user_tags(tags)) is not None:
@@ -228,8 +213,10 @@ class StreamMessagesHandler(BaseCallbackHandler, _StreamingCallbackHandler):
            and kwargs.get("name") == metadata.get("langgraph_node")
            and (not tags or TAG_HIDDEN not in tags)
        ):
-            ns = graph_namespace(metadata)
-            if not self.subgraphs and len(ns) > 0 and ns != self.parent_ns:
+            ns = tuple(cast(str, metadata["langgraph_checkpoint_ns"]).split(NS_SEP))[
+                :-1
+            ]
+            if not self.subgraphs and len(ns) > 0:
                return
            self.metadata[run_id] = (ns, metadata)
            for value in _state_values(inputs):
@@ -227,14 +227,23 @@ class PregelNode:
    def node(self) -> Runnable[Any, Any] | None:
        """Get a runnable that combines `bound` and `writers`."""
        writers = self.flat_writers
+        trace_inputs = self.trace_policy.process_inputs if self.trace_policy else None
+        trace_outputs = self.trace_policy.process_outputs if self.trace_policy else None
        if self.bound is DEFAULT_BOUND and not writers:
            return None
        elif self.bound is DEFAULT_BOUND and len(writers) == 1:
            return writers[0]
        elif self.bound is DEFAULT_BOUND:
-            return RunnableSeq(*writers, trace_policy=self.trace_policy)
+            return RunnableSeq(
+                *writers, trace_inputs=trace_inputs, trace_outputs=trace_outputs
+            )
        elif writers:
-            return RunnableSeq(self.bound, *writers, trace_policy=self.trace_policy)
+            return RunnableSeq(
+                self.bound,
+                *writers,
+                trace_inputs=trace_inputs,
+                trace_outputs=trace_outputs,
+            )
        else:
            return self.bound

@@ -28,14 +28,12 @@ from langgraph._internal._constants import (
    CONFIG_KEY_CHECKPOINT_NS,
    CONFIG_KEY_RESUMING,
    CONFIG_KEY_RUNTIME,
-    CONFIG_KEY_SCRATCHPAD,
    CONFIG_KEY_SEND,
    CONFIG_KEY_STREAM,
    CONFIG_KEY_TASK_ID,
    CONFIG_KEY_THREAD_ID,
    CONFIG_KEY_TIMED_ATTEMPT_OBSERVER,
    NS_SEP,
-    RETURN,
 )
 from langgraph._internal._runnable import create_task_in_config_context
 from langgraph._internal._timeout import sync_timeout_unsupported
@@ -45,7 +43,6 @@ from langgraph.errors import (
    NodeTimeoutError,
    ParentCommand,
 )
-from langgraph.pregel._algo import LazyAtomicCounter
 from langgraph.pregel.protocol import StreamProtocol
 from langgraph.runtime import ExecutionInfo, Runtime
 from langgraph.types import Command, PregelExecutableTask, RetryPolicy, TimeoutPolicy
@@ -573,23 +570,6 @@ def _checkpoint_ns_for_parent_command(ns: str) -> str:
    return NS_SEP.join(parts)


-def _reset_interrupt_counter(config: RunnableConfig) -> RunnableConfig:
-    # A retry reruns the node from its first line, so its interrupt() calls count
-    # from the first again to reuse the answers its task already has, rather than
-    # asking again under an id the next resume can't match.
-    scratchpad = config[CONF].get(CONFIG_KEY_SCRATCHPAD)
-    if scratchpad is None:
-        return config
-    return patch_configurable(
-        config,
-        {
-            CONFIG_KEY_SCRATCHPAD: replace(
-                scratchpad, interrupt_counter=LazyAtomicCounter()
-            )
-        },
-    )
-
-
 def run_with_retry(
    task: PregelExecutableTask,
    retry_policy: Sequence[RetryPolicy] | None,
@@ -700,7 +680,6 @@ def run_with_retry(
            )
            # signal subgraphs to resume (if available)
            config = patch_configurable(config, {CONFIG_KEY_RESUMING: True})
-            config = _reset_interrupt_counter(config)


 async def arun_with_retry(
@@ -754,14 +733,15 @@ async def arun_with_retry(
                if stream:
                    async for _ in task.proc.astream(task.input, config):
                        pass
-                    return _return_value(task)
+                    break
                return await task.proc.ainvoke(task.input, config)
            result = await _arun_with_timeout(
                task, config, resolved_timeout, attempt_ctx, stream=stream
            )
            _finish_timed_attempt(config, attempt_ctx)
            if stream:
-                return _return_value(task)
+                # if successful, end
+                break
            return result
        except ParentCommand as exc:
            ns: str = config[CONF][CONFIG_KEY_CHECKPOINT_NS]
@@ -849,13 +829,6 @@ async def arun_with_retry(
            )
            # signal subgraphs to resume (if available)
            config = patch_configurable(config, {CONFIG_KEY_RESUMING: True})
-            config = _reset_interrupt_counter(config)
-
-
-def _return_value(task: PregelExecutableTask) -> Any:
-    # Streaming drains the task instead of returning its result, so a caller
-    # awaiting a `@task` needs the value the task wrote.
-    return next((value for channel, value in task.writes if channel == RETURN), None)


 def _should_retry_on(retry_policy: RetryPolicy, exc: Exception) -> bool:
@@ -41,9 +41,9 @@ from langgraph._internal._future import chain_future, run_coroutine_threadsafe
 from langgraph._internal._scratchpad import PregelScratchpad
 from langgraph._internal._typing import MISSING
 from langgraph.constants import TAG_HIDDEN
-from langgraph.errors import GraphBubbleUp, GraphInterrupt, is_invalid_resume
+from langgraph.errors import GraphBubbleUp, GraphInterrupt
 from langgraph.pregel._algo import Call
-from langgraph.pregel._executor import SKIP_RERAISE_SET, Submit
+from langgraph.pregel._executor import Submit
 from langgraph.pregel._retry import arun_with_retry, run_with_retry
 from langgraph.pregel._task_status import CONTROL_WRITES
 from langgraph.types import (
@@ -68,6 +68,10 @@ EXCLUDED_FRAME_FNAMES = (
    "concurrent/futures/_base.py",
 )

+SKIP_RERAISE_SET: weakref.WeakSet[concurrent.futures.Future | asyncio.Future] = (
+    weakref.WeakSet()
+)
+

 class FuturesDict(Generic[F, E], dict[F, PregelExecutableTask | None]):
    event: E
@@ -235,8 +239,6 @@ class PregelRunner:
                        fut.set_exception(exc)
                        futures.done.add(fut)
                elif reraise and id(exc) not in self._handled_exception_ids:
-                    # let the caller stream this task's result before it raises
-                    yield
                    if tb := exc.__traceback__:
                        while tb.tb_next is not None and any(
                            tb.tb_frame.f_code.co_filename.endswith(name)
@@ -428,8 +430,6 @@ class PregelRunner:
                        fut.set_exception(exc)
                        futures.done.add(fut)
                elif reraise and id(exc) not in self._handled_exception_ids:
-                    # let the caller stream this task's result before it raises
-                    yield
                    if tb := exc.__traceback__:
                        while tb.tb_next is not None and any(
                            tb.tb_frame.f_code.co_filename.endswith(name)
@@ -621,11 +621,7 @@ def _should_stop_others(
    handled_exception_ids: set[int] | None = None,
 ) -> bool:
    """Check if any task failed, if so, cancel all other tasks.
-    GraphInterrupts are not considered failures.
-
-    Neither is an invalid resume value: it's raised once the other tasks finish, so a
-    task answered in the same resume isn't cut off after its side effects and then run
-    again with its saved answer."""
+    GraphInterrupts are not considered failures."""
    for fut in done:
        if fut.cancelled():
            continue
@@ -633,7 +629,6 @@ def _should_stop_others(
            if (
                id(exc) not in (handled_exception_ids or set())
                and not isinstance(exc, GraphBubbleUp)
-                and not is_invalid_resume(exc)
                and fut not in SKIP_RERAISE_SET
            ):
                return True
@@ -7,9 +7,8 @@ from uuid import UUID

 from langchain_core.callbacks import BaseCallbackHandler

+from langgraph._internal._constants import NS_SEP
 from langgraph.constants import TAG_NOSTREAM
-from langgraph.errors import GraphDrained, GraphInterrupt
-from langgraph.pregel._messages import graph_namespace
 from langgraph.pregel.protocol import StreamChunk

 try:
@@ -92,9 +91,12 @@ class StreamToolCallHandler(BaseCallbackHandler, _StreamingCallbackHandler):
    ) -> tuple[str, ...] | None:
        """Resolve the namespace this tool call should emit at, or `None` to skip.

-        Mirrors `StreamMessagesHandler.on_chat_model_start`: the namespace
-        is that of the graph the tool runs in (`graph_namespace`). Returns
-        `None` when the call should be silently suppressed:
+        Mirrors `StreamMessagesHandler.on_chat_model_start`'s namespace
+        derivation: parses `langgraph_checkpoint_ns` (which ends with
+        the `node_name:task_id` of the calling node), drops that
+        trailing segment, and returns the containing subgraph's own
+        namespace. Returns `None` when the call should be silently
+        suppressed:

        - `metadata` is missing — handler is attached to a context
          without Pregel routing info.
@@ -107,9 +109,11 @@ class StreamToolCallHandler(BaseCallbackHandler, _StreamingCallbackHandler):
            return None
        if tags and TAG_NOSTREAM in tags:
            return None
-        ns = (
-            graph_namespace(metadata) if metadata.get("langgraph_checkpoint_ns") else ()
-        )
+        nskey = metadata.get("langgraph_checkpoint_ns")
+        if not nskey:
+            ns: tuple[str, ...] = ()
+        else:
+            ns = tuple(cast(str, nskey).split(NS_SEP))[:-1]
        if not self.subgraphs and len(ns) > 0 and ns != self.parent_ns:
            return None
        return ns
@@ -184,10 +188,6 @@ class StreamToolCallHandler(BaseCallbackHandler, _StreamingCallbackHandler):
            return
        ns, tool_call_id, token = info
        self._reset_writer(token)
-        # An interrupted or drained tool is paused, not failed: it runs again
-        # on resume and reports its start and end then.
-        if isinstance(error, (GraphInterrupt, GraphDrained)):
-            return
        self.stream(
            (
                ns,
@@ -97,7 +97,6 @@ from langgraph._internal._runnable import (
    Runnable,
    RunnableLike,
    RunnableSeq,
-    _is_stream_handler,
    coerce_to_runnable,
 )
 from langgraph._internal._timeout import coerce_timeout_policy
@@ -204,6 +203,11 @@ from langgraph.types import (
 from langgraph.typing import ContextT, InputT, OutputT, StateT
 from langgraph.warnings import LangGraphDeprecatedSinceV10

+try:
+    from langchain_core.tracers._streaming import _StreamingCallbackHandler
+except ImportError:
+    _StreamingCallbackHandler = None  # type: ignore
+
 __all__ = ("NodeBuilder", "Pregel")

 _WriteValue = Callable[[Input], Output] | Any
@@ -728,6 +732,14 @@ class Pregel(

    interrupt_before_nodes: All | Sequence[str]

+    insert_before_nodes: Sequence[str] = ()
+    """Nodes before which input inserted into a running run may be applied.
+
+    !!! warning "Experimental"
+
+        This attribute may change without notice.
+    """
+
    input_channels: str | Sequence[str]

    step_timeout: float | None = None
@@ -773,6 +785,7 @@ class Pregel(
        stream_channels: str | Sequence[str] | None = None,
        interrupt_after_nodes: All | Sequence[str] = (),
        interrupt_before_nodes: All | Sequence[str] = (),
+        insert_before_nodes: Sequence[str] = (),
        input_channels: str | Sequence[str],
        step_timeout: float | None = None,
        debug: bool | None = None,
@@ -819,6 +832,7 @@ class Pregel(
        self.stream_channels = stream_channels
        self.interrupt_after_nodes = interrupt_after_nodes
        self.interrupt_before_nodes = interrupt_before_nodes
+        self.insert_before_nodes = insert_before_nodes
        self.input_channels = input_channels
        self.step_timeout = step_timeout
        self.debug = debug if debug is not None else get_debug()
@@ -983,6 +997,10 @@ class Pregel(
            "image/png": self.get_graph().draw_mermaid_png(),
        }

+    def _inserted_input_channels(self) -> Sequence[str]:
+        """Channels inserted input may write; none for a plain `Pregel`."""
+        return ()
+
    def copy(self, update: dict[str, Any] | None = None) -> Self:
        attrs = {k: v for k, v in self.__dict__.items() if k != "__orig_class__"}
        attrs.update(update or {})
@@ -2798,7 +2816,8 @@ class Pregel(
                - `"sync"`: Changes are persisted synchronously before the next step starts.
                - `"async"`: Changes are persisted asynchronously while the next step executes.
                - `"exit"`: Changes are persisted only when the graph exits.
-            control: Optional run control used to request cooperative drain.
+            control: Optional run control used to request cooperative drain or to
+                insert input into the run (see `RunControl`).
            subgraphs: Whether to stream events from inside subgraphs, defaults to `False`.

                If `True`, the events will be emitted as tuples `(namespace, data)`,
@@ -2876,20 +2895,6 @@ class Pregel(
                    for h in callback_manager.inheritable_handlers
                    if not isinstance(h, StreamMessagesHandlerV2)
                ]
-            if CONFIG_KEY_TASK_ID not in config[CONF]:
-                # Not run as a task (a child invoked with its own thread, say),
-                # this graph's namespace starts at the root, so a caller's
-                # handler would take this graph's events for its own graph's.
-                callback_manager.handlers = [
-                    h
-                    for h in callback_manager.handlers
-                    if not _is_stream_mode_handler(h)
-                ]
-                callback_manager.inheritable_handlers = [
-                    h
-                    for h in callback_manager.inheritable_handlers
-                    if not _is_stream_mode_handler(h)
-                ]
            if "ls_integration" not in callback_manager.metadata:
                callback_manager.add_metadata({"ls_integration": "langgraph"})
            run_manager = callback_manager.on_chain_start(
@@ -2908,9 +2913,9 @@ class Pregel(
                )
            # set up subgraph checkpointing
            config = self._own_checkpoint_config(config)
-            stream_handlers: list[StreamMessagesHandler | StreamToolCallHandler] = []
            # set up messages stream mode
            if "messages" in stream_modes:
+                ns_ = cast(str | None, config[CONF].get(CONFIG_KEY_CHECKPOINT_NS))
                use_stream_messages_v2 = bool(
                    version == "v2" and config[CONF].get(CONFIG_KEY_STREAM_MESSAGES_V2)
                )
@@ -2919,12 +2924,24 @@ class Pregel(
                    if use_stream_messages_v2
                    else StreamMessagesHandler
                )
-                stream_handlers.append(messages_handler_cls(stream.put, subgraphs))
+                run_manager.inheritable_handlers.append(
+                    messages_handler_cls(
+                        stream.put,
+                        subgraphs,
+                        parent_ns=tuple(ns_.split(NS_SEP)) if ns_ else None,
+                    )
+                )

            # set up tools stream mode
            if "tools" in stream_modes:
-                stream_handlers.append(StreamToolCallHandler(stream.put, subgraphs))
-            run_manager.inheritable_handlers.extend(stream_handlers)
+                ns_tools = cast(str | None, config[CONF].get(CONFIG_KEY_CHECKPOINT_NS))
+                run_manager.inheritable_handlers.append(
+                    StreamToolCallHandler(
+                        stream.put,
+                        subgraphs,
+                        parent_ns=tuple(ns_tools.split(NS_SEP)) if ns_tools else None,
+                    )
+                )

            # set up custom stream mode
            if "custom" in stream_modes:
@@ -2999,6 +3016,8 @@ class Pregel(
                stream_keys=self.stream_channels_asis,
                interrupt_before=interrupt_before_,
                interrupt_after=interrupt_after_,
+                insert_before=self.insert_before_nodes,
+                insert_channels=self._inserted_input_channels(),
                manager=run_manager,
                durability=durability_,
                trigger_to_nodes=self.trigger_to_nodes,
@@ -3007,10 +3026,6 @@ class Pregel(
                cache_policy=self.cache_policy,
                has_graph_lifecycle_callbacks=bool(graph_callback_manager.handlers),
            ) as loop:
-                # Known only now: the loop numbers the namespace of every
-                # subgraph a task runs after its first.
-                for handler in stream_handlers:
-                    handler.parent_ns = loop.checkpoint_ns
                emit_graph_lifecycle_events(loop)
                # create runner
                runner = PregelRunner(
@@ -3210,7 +3225,8 @@ class Pregel(
                - `"sync"`: Changes are persisted synchronously before the next step starts.
                - `"async"`: Changes are persisted asynchronously while the next step executes.
                - `"exit"`: Changes are persisted only when the graph exits.
-            control: Optional run control used to request cooperative drain.
+            control: Optional run control used to request cooperative drain or to
+                insert input into the run (see `RunControl`).
            subgraphs: Whether to stream events from inside subgraphs, defaults to `False`.

                If `True`, the events will be emitted as tuples `(namespace, data)`,
@@ -3293,20 +3309,6 @@ class Pregel(
                    for h in callback_manager.inheritable_handlers
                    if not isinstance(h, StreamMessagesHandlerV2)
                ]
-            if CONFIG_KEY_TASK_ID not in config[CONF]:
-                # Not run as a task (a child invoked with its own thread, say),
-                # this graph's namespace starts at the root, so a caller's
-                # handler would take this graph's events for its own graph's.
-                callback_manager.handlers = [
-                    h
-                    for h in callback_manager.handlers
-                    if not _is_stream_mode_handler(h)
-                ]
-                callback_manager.inheritable_handlers = [
-                    h
-                    for h in callback_manager.inheritable_handlers
-                    if not _is_stream_mode_handler(h)
-                ]
            if "ls_integration" not in callback_manager.metadata:
                callback_manager.add_metadata({"ls_integration": "langgraph"})
            run_manager = await callback_manager.on_chain_start(
@@ -3320,10 +3322,18 @@ class Pregel(
                run_id=run_manager.run_id,
            )
            # if running from astream_log() run each proc with streaming
-            do_stream = any(
-                _is_stream_handler(h)
-                and not isinstance(h, (StreamMessagesHandler, StreamToolCallHandler))
-                for h in run_manager.handlers
+            do_stream = (
+                next(
+                    (
+                        True
+                        for h in run_manager.handlers
+                        if isinstance(h, _StreamingCallbackHandler)
+                        and not isinstance(h, StreamMessagesHandler)
+                    ),
+                    False,
+                )
+                if _StreamingCallbackHandler is not None
+                else False
            )
            if checkpointer is None and durability is not None:
                warnings.warn(
@@ -3331,9 +3341,10 @@ class Pregel(
                )
            # set up subgraph checkpointing
            config = self._own_checkpoint_config(config)
-            stream_handlers: list[StreamMessagesHandler | StreamToolCallHandler] = []
            # set up messages stream mode
            if "messages" in stream_modes:
+                # namespace can be None in a root level graph?
+                ns_ = cast(str | None, config[CONF].get(CONFIG_KEY_CHECKPOINT_NS))
                use_stream_messages_v2 = bool(
                    version == "v2" and config[CONF].get(CONFIG_KEY_STREAM_MESSAGES_V2)
                )
@@ -3342,12 +3353,24 @@ class Pregel(
                    if use_stream_messages_v2
                    else StreamMessagesHandler
                )
-                stream_handlers.append(messages_handler_cls(stream_put, subgraphs))
+                run_manager.inheritable_handlers.append(
+                    messages_handler_cls(
+                        stream_put,
+                        subgraphs,
+                        parent_ns=tuple(ns_.split(NS_SEP)) if ns_ else None,
+                    )
+                )

            # set up tools stream mode
            if "tools" in stream_modes:
-                stream_handlers.append(StreamToolCallHandler(stream_put, subgraphs))
-            run_manager.inheritable_handlers.extend(stream_handlers)
+                ns_tools = cast(str | None, config[CONF].get(CONFIG_KEY_CHECKPOINT_NS))
+                run_manager.inheritable_handlers.append(
+                    StreamToolCallHandler(
+                        stream_put,
+                        subgraphs,
+                        parent_ns=tuple(ns_tools.split(NS_SEP)) if ns_tools else None,
+                    )
+                )

            # set up custom stream mode
            def stream_writer(c: Any) -> None:
@@ -3448,6 +3471,8 @@ class Pregel(
                stream_keys=self.stream_channels_asis,
                interrupt_before=interrupt_before_,
                interrupt_after=interrupt_after_,
+                insert_before=self.insert_before_nodes,
+                insert_channels=self._inserted_input_channels(),
                manager=run_manager,
                durability=durability_,
                trigger_to_nodes=self.trigger_to_nodes,
@@ -3456,10 +3481,6 @@ class Pregel(
                cache_policy=self.cache_policy,
                has_graph_lifecycle_callbacks=bool(graph_callback_manager.handlers),
            ) as loop:
-                # Known only now: the loop numbers the namespace of every
-                # subgraph a task runs after its first.
-                for handler in stream_handlers:
-                    handler.parent_ns = loop.checkpoint_ns
                await aemit_graph_lifecycle_events(loop)
                # create runner
                runner = PregelRunner(
@@ -3957,7 +3978,8 @@ class Pregel(
                - `"sync"`: Changes are persisted synchronously before the next step starts.
                - `"async"`: Changes are persisted asynchronously while the next step executes.
                - `"exit"`: Changes are persisted only when the graph exits.
-            control: Optional run control used to request cooperative drain.
+            control: Optional run control used to request cooperative drain or to
+                insert input into the run (see `RunControl`).
            version: The streaming format version. `"v1"` (default) returns the
                traditional format, `"v2"` returns `StreamPart` typed dicts when
                `stream_mode` is not `"values"`.
@@ -4134,7 +4156,8 @@ class Pregel(
                - `"sync"`: Changes are persisted synchronously before the next step starts.
                - `"async"`: Changes are persisted asynchronously while the next step executes.
                - `"exit"`: Changes are persisted only when the graph exits.
-            control: Optional run control used to request cooperative drain.
+            control: Optional run control used to request cooperative drain or to
+                insert input into the run (see `RunControl`).
            version: The streaming format version. `"v1"` (default) returns the
                traditional format, `"v2"` returns `StreamPart` typed dicts when
                `stream_mode` is not `"values"`.
@@ -4457,10 +4480,6 @@ def _coerce_checkpoint_values(payload: Any, mapper: Callable[[Any], Any]) -> Non
        payload["values"] = mapper(payload["values"])


-def _is_stream_mode_handler(handler: object) -> bool:
-    return isinstance(handler, (StreamMessagesHandler, StreamToolCallHandler))
-
-
 def _resolve_parent_ns(
    graph_config: RunnableConfig | None, call_config: RunnableConfig | None
 ) -> tuple[str, ...]:
@@ -50,7 +50,6 @@ from langgraph._internal._constants import (
    CONFIG_KEY_CHECKPOINT_MAP,
    CONFIG_KEY_CHECKPOINT_NS,
    CONFIG_KEY_STREAM,
-    CONFIG_KEY_STRICT_RESUME,
    CONFIG_KEY_TASK_ID,
    INTERRUPT,
    NS_SEP,
@@ -82,7 +81,6 @@ _CONF_DROPLIST = frozenset(
        CONFIG_KEY_CHECKPOINT_ID,
        CONFIG_KEY_CHECKPOINT_NS,
        CONFIG_KEY_TASK_ID,
-        CONFIG_KEY_STRICT_RESUME,
    ),
 )

@@ -849,11 +847,6 @@ class RemoteGraph(PregelProtocol):
            # filter for what was actually requested
            if mode not in requested:
                continue
-            # subgraph events may have been requested only for the parent stream.
-            # messages are exempt: the server dedupes them across namespaces, so
-            # dropping them here would also drop the root-level message
-            if not subgraphs and NS_SEP in chunk.event and mode != "messages":
-                continue

            if chunk.event.startswith("messages"):
                chunk = chunk._replace(data=tuple(chunk.data))
@@ -868,6 +861,11 @@ class RemoteGraph(PregelProtocol):
                    )
                yield {"type": mode, "ns": ns, "data": chunk.data, "interrupts": ints}
            elif subgraphs:
+                if NS_SEP in chunk.event:
+                    mode, ns_ = chunk.event.split(NS_SEP, 1)
+                    ns = tuple(ns_.split(NS_SEP))
+                else:
+                    mode, ns = chunk.event, ()
                if req_single:
                    yield ns, chunk.data
                else:
@@ -1004,11 +1002,6 @@ class RemoteGraph(PregelProtocol):
            # filter for what was actually requested
            if mode not in requested:
                continue
-            # subgraph events may have been requested only for the parent stream.
-            # messages are exempt: the server dedupes them across namespaces, so
-            # dropping them here would also drop the root-level message
-            if not subgraphs and NS_SEP in chunk.event and mode != "messages":
-                continue

            if chunk.event.startswith("messages"):
                chunk = chunk._replace(data=tuple(chunk.data))
@@ -1023,6 +1016,11 @@ class RemoteGraph(PregelProtocol):
                    )
                yield {"type": mode, "ns": ns, "data": chunk.data, "interrupts": ints}
            elif subgraphs:
+                if NS_SEP in chunk.event:
+                    mode, ns_ = chunk.event.split(NS_SEP, 1)
+                    ns = tuple(ns_.split(NS_SEP))
+                else:
+                    mode, ns = chunk.event, ()
                if req_single:
                    yield ns, chunk.data
                else:
@@ -1,5 +1,6 @@
 from __future__ import annotations

+import threading
 from collections.abc import Callable
 from dataclasses import dataclass, field, replace
 from typing import Any, Generic, cast
@@ -77,24 +78,66 @@ class ServerInfo:


 class RunControl:
-    """Run-scoped control surface for cooperative draining.
+    """Run-scoped control surface for cooperative draining and inserted input.

    Intended for a single graph run. Create a fresh `RunControl` per run;
    reusing a control after `request_drain()` leaves it drained.

    Safe to call from any thread: the drain request is represented by a
-    single attribute write, so no lock is needed for this signal.
-    If more mutable state is added here, add synchronization.
+    single attribute write, so no lock is needed for this signal. Inserted
+    input is guarded by a lock.
    """

-    __slots__ = ("_drain_reason",)
+    __slots__ = ("_drain_reason", "_inputs", "_inputs_lock")

    def __init__(self) -> None:
        self._drain_reason: str | None = None
+        self._inputs: list[tuple[str, Any]] = []
+        self._inputs_lock = threading.Lock()

    def request_drain(self, reason: str = "shutdown") -> None:
        self._drain_reason = reason

+    def submit_input(self, input_id: str, value: Any) -> None:
+        """Queue input for the running graph to apply at its next safe step boundary.
+
+        !!! warning "Experimental"
+
+            This method may change without notice.
+
+        The graph applies queued input only right before the nodes in its
+        `insert_before`, the points it declares safe (for an agent, before the
+        next model call, so input never lands between a tool call and its
+        result). Only the top-level graph applies it, since a subgraph's state
+        isn't the caller's, and never on the step a resume continues, since the
+        resume answers the state it paused on. Input it can't apply (not a dict
+        of the graph's input keys, or a value the state rejects) is skipped and
+        logged rather than failing the run. Input the run never reaches stays
+        queued, so the caller can run it afterwards.
+
+        Args:
+            input_id: Recorded in the `inserted_inputs` metadata of the
+                checkpoint that applied it.
+            value: A dict of the graph's input keys.
+        """
+        with self._inputs_lock:
+            self._inputs.append((input_id, value))
+
+    @property
+    def has_inputs(self) -> bool:
+        """Whether input is queued and not yet applied."""
+        return bool(self._inputs)
+
+    def take_inputs(self) -> list[tuple[str, Any]]:
+        """Remove and return queued input in the order it was submitted.
+
+        Returns:
+            `(input_id, value)` pairs.
+        """
+        with self._inputs_lock:
+            inputs, self._inputs = self._inputs, []
+        return inputs
+
    @property
    def drain_requested(self) -> bool:
        return self._drain_reason is not None
@@ -33,7 +33,6 @@ from xxhash import xxh3_128_hexdigest

 from langgraph._internal._cache import default_cache_key
 from langgraph._internal._constants import INTERRUPT as _INTERRUPT_KEY
-from langgraph._internal._constants import NS_SEP
 from langgraph._internal._fields import get_cached_annotated_keys, get_update_as_tuples
 from langgraph._internal._retry import default_retry_on
 from langgraph._internal._typing import MISSING, DeprecatedKwargs
@@ -580,15 +579,6 @@ def omit_payload(_value: Any) -> dict[str, Any]:
 _DEFAULT_INTERRUPT_ID = "placeholder-id"


-def _interrupt_id(ns: str, answered: int) -> str:
-    # Keyed by how many answers the task already has, the slot this interrupt's
-    # answer fills; call order isn't stable across parallel calls in one task.
-    # With none it's the bare namespace hash older versions gave every
-    # interrupt, so saved ids still match. The suffix can't form another task's
-    # namespace, whose segments all contain ":".
-    return xxh3_128_hexdigest((f"{ns}{NS_SEP}{answered}" if answered else ns).encode())
-
-
@final
@dataclass(init=False, slots=True)
 class Interrupt(Generic[ResponseT]):
@@ -651,7 +641,7 @@ class Interrupt(Generic[ResponseT]):
    ) -> Interrupt[ResponseT]:
        return cls(
            value=value,
-            id=_interrupt_id(ns, 0),
+            id=xxh3_128_hexdigest(ns.encode()),
            response_schema=response_schema,
        )

@@ -1047,11 +1037,9 @@ def interrupt(
    # no resume value found
    raise GraphInterrupt(
        (
-            Interrupt(
+            Interrupt.from_ns(
                value=value,
-                id=_interrupt_id(
-                    conf[CONFIG_KEY_CHECKPOINT_NS], len(scratchpad.resume)
-                ),
+                ns=conf[CONFIG_KEY_CHECKPOINT_NS],
                response_schema=adapter.json_schema() if adapter else response_schema,
            ),
        )
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"

 [project]
 name = "langgraph"
-version = "1.2.20"
+version = "1.2.15"
 description = "Building stateful, multi-actor applications with LLMs"
 authors = []
 requires-python = ">=3.10"
@@ -133,11 +133,6 @@
            "ToolNode"
          ],
          "name": "tools"
-        },
-        "metadata": {
-          "__tools": [
-            "search_api"
-          ]
        }
      },
      {
@@ -226,11 +221,6 @@
            "ToolNode"
          ],
          "name": "tools"
-        },
-        "metadata": {
-          "__tools": [
-            "search_api"
-          ]
        }
      },
      {
@@ -20,7 +20,6 @@ from langgraph.errors import EmptyChannelError, InvalidUpdateError
 from langgraph.graph import START, StateGraph
 from langgraph.graph.message import _messages_delta_reducer
 from langgraph.graph.state import _get_channel
-from langgraph.pregel._checkpoint import delta_channels_to_snapshot
 from langgraph.types import Overwrite

 pytestmark = pytest.mark.anyio
@@ -343,26 +342,6 @@ def test_delta_channel_checkpoint_returns_missing() -> None:
 # ---------------------------------------------------------------------------


-@pytest.mark.parametrize("frequency", [None, 50, 1000])
-def test_delta_channel_snapshot_frequency(frequency: int | None) -> None:
-    spec = (
-        DeltaChannel(_messages_delta_reducer)
-        if frequency is None
-        else DeltaChannel(_messages_delta_reducer, snapshot_frequency=frequency)
-    )
-    expected = 100 if frequency is None else frequency
-    assert spec.snapshot_frequency == expected
-    channel = spec.from_checkpoint(MISSING)
-    channel.update([HumanMessage(content="hi", id="h1")])
-    assert channel.copy().snapshot_frequency == expected
-    for updates in (expected - 1, expected):
-        assert delta_channels_to_snapshot(
-            {"messages": channel},
-            {"messages": (updates, updates)},
-            {"messages": 1},
-        ) == ({"messages"} if updates == expected else set())
-
-
 def test_delta_channel_snapshot_version_based() -> None:
    """Snapshots fire when a channel accumulates `snapshot_frequency` updates.

@@ -1,19 +1,11 @@
-from collections.abc import Callable
-
 import pytest
 from langchain_core.callbacks import AsyncCallbackManager, BaseCallbackHandler

-from langgraph._internal._config import (
-    DEFAULT_RECURSION_LIMIT,
-    get_async_callback_manager_for_config,
-)
+from langgraph._internal._config import get_async_callback_manager_for_config
 from langgraph.graph import StateGraph
-from langgraph.pregel import Pregel

 pytestmark = pytest.mark.anyio

-EXPLICIT_DEFAULT_LIMIT = int(DEFAULT_RECURSION_LIMIT)
-

 def test_new_async_manager_includes_tags() -> None:
    config = {"callbacks": None}
@@ -122,27 +114,3 @@ async def test_with_config_tags_preserved_on_invoke() -> None:
    await graph.ainvoke({}, {"tags": ["invoke"]})
    assert "bound" in captured, "bound tag was dropped by ensure_config overwrite"
    assert "invoke" in captured, "invoke-time tag not present"
-
-
-@pytest.mark.parametrize(
-    "rebind",
-    [
-        lambda g: g.with_config(recursion_limit=EXPLICIT_DEFAULT_LIMIT),
-        lambda g: g.with_config({"recursion_limit": EXPLICIT_DEFAULT_LIMIT}),
-        lambda g: g.with_config(
-            {"recursion_limit": 1}, recursion_limit=EXPLICIT_DEFAULT_LIMIT
-        ),
-        lambda g: g.with_config(recursion_limit=EXPLICIT_DEFAULT_LIMIT).with_config(
-            tags=["t"]
-        ),
-    ],
-    ids=["kwarg", "config", "kwarg_over_config", "kept_by_later_with_config"],
-)
-def test_with_config_applies_recursion_limit_equal_to_default(
-    rebind: Callable[[Pregel], Pregel],
-) -> None:
-    builder = StateGraph(dict)
-    builder.add_node("node", lambda state: state)
-    builder.add_edge("__start__", "node")
-    graph = builder.compile().with_config(recursion_limit=EXPLICIT_DEFAULT_LIMIT + 1)
-    assert rebind(graph).config["recursion_limit"] == EXPLICIT_DEFAULT_LIMIT
@@ -521,11 +521,10 @@ def test_addressed_resume_keeps_a_rerun_tasks_write_to_a_new_channel(
    graph = builder.compile(checkpointer=sync_checkpointer)
    config = {"configurable": {"thread_id": "t"}}
    graph.invoke(_both("in"), config, durability=durability)
-    paused = graph.get_state(config).config
-    graph.update_state(config, None)
+    head = graph.get_state(config).config

    live = graph.invoke(
-        Command(resume="yes", update={"flag": True}), paused, durability=durability
+        Command(resume="yes", update={"flag": True}), head, durability=durability
    )

    state = graph.get_state(config)
@@ -1,148 +0,0 @@
-import operator
-from typing import Annotated, Any
-from unittest.mock import patch
-
-import pytest
-from langchain_core.messages import AIMessage, HumanMessage
-from langchain_core.runnables import RunnableConfig
-from langgraph.checkpoint.base import BaseCheckpointSaver
-from langgraph.checkpoint.memory import InMemorySaver
-from langgraph.checkpoint.serde.types import _DeltaSnapshot
-from typing_extensions import TypedDict
-
-from langgraph.channels.binop import BinaryOperatorAggregate
-from langgraph.channels.delta import DeltaChannel
-from langgraph.graph import END, START, StateGraph
-from langgraph.graph.message import _messages_delta_reducer, add_messages
-from langgraph.pregel._checkpoint import channels_from_checkpoint, empty_checkpoint
-from langgraph.types import Overwrite
-
-pytestmark = pytest.mark.anyio
-
-
-class DeltaState(TypedDict):
-    messages: Annotated[
-        list, DeltaChannel(_messages_delta_reducer, snapshot_frequency=3)
-    ]
-
-
-class PlainState(TypedDict):
-    messages: Annotated[list, add_messages]
-
-
-def _app(schema: type, checkpointer: BaseCheckpointSaver) -> Any:
-    builder = StateGraph(schema)
-    builder.add_node(
-        "chat",
-        lambda state: {"messages": [AIMessage(f"reply {len(state['messages'])}")]},
-    )
-    builder.add_edge(START, "chat")
-    builder.add_edge("chat", END)
-    return builder.compile(checkpointer=checkpointer)
-
-
-def _delta_thread(checkpointer: BaseCheckpointSaver) -> RunnableConfig:
-    config: RunnableConfig = {"configurable": {"thread_id": "1"}}
-    delta = _app(DeltaState, checkpointer)
-    for i in range(4):
-        delta.invoke({"messages": [HumanMessage(f"q{i}")]}, config)
-    assert any(
-        isinstance(t.checkpoint["channel_values"].get("messages"), _DeltaSnapshot)
-        for t in checkpointer.list(config)
-    ), "the thread should have a snapshot to read through"
-    return config
-
-
-def test_plain_reducer_reads_every_delta_written_checkpoint(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    config = _delta_thread(sync_checkpointer)
-    delta = _app(DeltaState, sync_checkpointer)
-    plain = _app(PlainState, sync_checkpointer)
-
-    assert [s.values for s in plain.get_state_history(config)] == [
-        s.values for s in delta.get_state_history(config)
-    ]
-
-
-def test_plain_reducer_continues_delta_written_thread(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    config = _delta_thread(sync_checkpointer)
-    delta = _app(DeltaState, sync_checkpointer)
-    before = delta.get_state(config).values["messages"]
-
-    after = _app(PlainState, sync_checkpointer).invoke(
-        {"messages": [HumanMessage("q4")]}, config
-    )["messages"]
-
-    assert after[:-2] == before
-    assert [m.content for m in after[-2:]] == ["q4", f"reply {len(before) + 1}"]
-    head = sync_checkpointer.get_tuple(config)
-    assert head is not None
-    assert head.checkpoint["channel_values"]["messages"] == after
-    assert delta.get_state(config).values["messages"] == after
-
-
-async def test_plain_reducer_reads_and_continues_delta_written_thread_async(
-    async_checkpointer: BaseCheckpointSaver,
-) -> None:
-    config: RunnableConfig = {"configurable": {"thread_id": "1"}}
-    delta = _app(DeltaState, async_checkpointer)
-    for i in range(4):
-        await delta.ainvoke({"messages": [HumanMessage(f"q{i}")]}, config)
-    plain = _app(PlainState, async_checkpointer)
-
-    expected = [s.values async for s in delta.aget_state_history(config)]
-    assert [s.values async for s in plain.aget_state_history(config)] == expected
-
-    after = (await plain.ainvoke({"messages": [HumanMessage("q4")]}, config))[
-        "messages"
-    ]
-    assert after[:-2] == expected[0]["messages"]
-
-
-@pytest.mark.parametrize(
-    ("seed", "writes", "expected"),
-    [
-        (_DeltaSnapshot(["a"]), [["b"], ["c"]], ["a", "b", "c"]),
-        (["a"], [["b"], Overwrite(["c"]), ["d"]], ["c", "d"]),
-        (None, [["b"], Overwrite(["c"]), Overwrite(["d"]), ["e"]], ["d", "e"]),
-    ],
-)
-def test_plain_reducer_replays_delta_history_one_write_at_a_time(
-    seed: Any, writes: list[Any], expected: list[str]
-) -> None:
-    history: dict[str, Any] = {"writes": [("t", "items", w) for w in writes]}
-    if seed is not None:
-        history["seed"] = seed
-    checkpoint = empty_checkpoint()
-    checkpoint["channel_versions"]["items"] = 1
-    saver = InMemorySaver()
-
-    with patch.object(
-        saver, "get_delta_channel_history", return_value={"items": history}
-    ):
-        channels, _ = channels_from_checkpoint(
-            {"items": BinaryOperatorAggregate(list, operator.add)},
-            checkpoint,
-            saver=saver,
-            config={"configurable": {"thread_id": "1"}},
-        )
-
-    assert channels["items"].get() == expected
-
-
-def test_plain_thread_reads_never_walk_history() -> None:
-    saver = InMemorySaver()
-    config: RunnableConfig = {"configurable": {"thread_id": "1"}}
-    plain = _app(PlainState, saver)
-
-    with patch.object(saver, "get_delta_channel_history") as walk:
-        plain.invoke({"messages": [HumanMessage("q0")]}, config)
-        plain.update_state(config, {"messages": [HumanMessage("note")]})
-        plain.invoke({"messages": [HumanMessage("q1")]}, config)
-        plain.get_state(config)
-        list(plain.get_state_history(config))
-
-    walk.assert_not_called()
@@ -0,0 +1,333 @@
+import operator
+from typing import Annotated
+
+import pytest
+from langgraph.checkpoint.memory import InMemorySaver
+from typing_extensions import TypedDict
+
+from langgraph.errors import GraphRecursionError
+from langgraph.graph import END, START, StateGraph
+from langgraph.runtime import RunControl
+from langgraph.types import Command, Send, interrupt
+
+
+class State(TypedDict, total=False):
+    log: Annotated[list[str], operator.add]
+    seen: list[str]
+
+
+def _tools_then_model(control: RunControl) -> StateGraph:
+    """`tools` queues input while it runs; `model` records what it sees."""
+
+    def tools(state: State) -> State:
+        control.submit_input("insert-1", {"log": ["inserted"]})
+        return {"log": ["tools"]}
+
+    def model(state: State) -> State:
+        return {"seen": list(state["log"])}
+
+    graph = StateGraph(State)
+    graph.add_node("tools", tools)
+    graph.add_node("model", model)
+    graph.add_edge(START, "tools")
+    graph.add_edge("tools", "model")
+    graph.add_edge("model", END)
+    return graph
+
+
+def test_inserted_input_is_applied_before_an_allowed_node() -> None:
+    control = RunControl()
+    checkpointer = InMemorySaver()
+    graph = _tools_then_model(control).compile(
+        checkpointer=checkpointer, insert_before=["model"]
+    )
+    config = {"configurable": {"thread_id": "1"}}
+
+    result = graph.invoke({"log": ["user"]}, config, control=control)
+
+    assert result["seen"] == ["user", "tools", "inserted"]
+    assert not control.has_inputs
+    inserted = [
+        snapshot.metadata
+        for snapshot in graph.get_state_history(config)
+        if snapshot.metadata.get("inserted_inputs")
+    ]
+    assert len(inserted) == 1
+    assert inserted[0]["source"] == "input"
+    assert inserted[0]["inserted_inputs"] == ["insert-1"]
+
+
+@pytest.mark.anyio
+async def test_inserted_input_is_applied_before_an_allowed_node_async() -> None:
+    control = RunControl()
+    graph = _tools_then_model(control).compile(
+        checkpointer=InMemorySaver(), insert_before=["model"]
+    )
+
+    result = await graph.ainvoke(
+        {"log": ["user"]}, {"configurable": {"thread_id": "1"}}, control=control
+    )
+
+    assert result["seen"] == ["user", "tools", "inserted"]
+    assert not control.has_inputs
+
+
+def test_inserted_input_is_applied_without_a_checkpointer() -> None:
+    control = RunControl()
+    graph = _tools_then_model(control).compile(insert_before=["model"])
+
+    result = graph.invoke({"log": ["user"]}, control=control)
+
+    assert result["seen"] == ["user", "tools", "inserted"]
+
+
+@pytest.mark.parametrize("insert_before", [None, ["tools"]])
+def test_inserted_input_waits_when_the_next_node_is_not_allowed(
+    insert_before: list[str] | None,
+) -> None:
+    control = RunControl()
+    graph = _tools_then_model(control).compile(insert_before=insert_before)
+
+    result = graph.invoke({"log": ["user"]}, control=control)
+
+    assert result["seen"] == ["user", "tools"]
+    assert control.take_inputs() == [("insert-1", {"log": ["inserted"]})]
+
+
+def _outer(node: object) -> StateGraph:
+    """Runs `node` (which runs a subgraph), then `finish`."""
+
+    def finish(state: State) -> State:
+        return {"log": ["finished"]}
+
+    outer = StateGraph(State)
+    outer.add_node("outer", node)
+    outer.add_node("finish", finish)
+    outer.add_edge(START, "outer")
+    outer.add_edge("outer", "finish")
+    outer.add_edge("finish", END)
+    return outer
+
+
+def test_inserted_input_is_not_applied_inside_a_subgraph() -> None:
+    control = RunControl()
+    inner = _tools_then_model(control).compile(insert_before=["model"])
+
+    def outer_node(state: State) -> State:
+        return inner.invoke({"log": state["log"]})
+
+    result = (
+        _outer(outer_node)
+        .compile(insert_before=["finish"])
+        .invoke({"log": ["user"]}, control=control)
+    )
+
+    # the subgraph's model didn't see it; the parent applied it before `finish`
+    assert result["seen"] == ["user", "tools"]
+    assert result["log"][-2:] == ["inserted", "finished"]
+
+
+@pytest.mark.anyio
+async def test_inserted_input_is_not_applied_inside_a_subgraph_async() -> None:
+    control = RunControl()
+    inner = _tools_then_model(control).compile(insert_before=["model"])
+
+    async def outer_node(state: State) -> State:
+        return await inner.ainvoke({"log": state["log"]})
+
+    result = await (
+        _outer(outer_node)
+        .compile(insert_before=["finish"])
+        .ainvoke({"log": ["user"]}, control=control)
+    )
+
+    assert result["seen"] == ["user", "tools"]
+    assert result["log"][-2:] == ["inserted", "finished"]
+
+
+def test_inserted_input_is_streamed_as_values() -> None:
+    control = RunControl()
+    graph = _tools_then_model(control).compile(insert_before=["model"])
+
+    chunks = list(
+        graph.stream({"log": ["user"]}, control=control, stream_mode="values")
+    )
+
+    assert {"log": ["user", "tools", "inserted"]} in chunks
+
+
+@pytest.mark.parametrize(
+    "value", ["not a dict", {"seen": ["forged"]}, {"branch:to:model": None}]
+)
+def test_invalid_inserted_input_is_skipped(value: object) -> None:
+    class InputState(TypedDict):
+        log: Annotated[list[str], operator.add]
+
+    control = RunControl()
+
+    def tools(state: State) -> State:
+        control.submit_input("bad", value)
+        return {"log": ["tools"]}
+
+    def model(state: State) -> State:
+        return {"seen": list(state["log"])}
+
+    builder = StateGraph(State, input_schema=InputState)
+    builder.add_node("tools", tools)
+    builder.add_node("model", model)
+    builder.add_edge(START, "tools")
+    builder.add_edge("tools", "model")
+    builder.add_edge("model", END)
+    checkpointer = InMemorySaver()
+    graph = builder.compile(checkpointer=checkpointer, insert_before=["model"])
+    config = {"configurable": {"thread_id": "1"}}
+
+    result = graph.invoke({"log": ["user"]}, config, control=control)
+
+    assert result["seen"] == ["user", "tools"]
+    assert not any(
+        snapshot.metadata.get("inserted_inputs")
+        for snapshot in graph.get_state_history(config)
+    )
+
+
+@pytest.mark.parametrize("by_id", [False, True])
+def test_inserted_input_waits_while_resuming(by_id: bool) -> None:
+    def model(state: State) -> State:
+        answer = interrupt("approve?")
+        return {"log": [f"answered {answer}"], "seen": list(state["log"])}
+
+    builder = StateGraph(State)
+    builder.add_node("model", model)
+    builder.add_edge(START, "model")
+    builder.add_edge("model", END)
+    graph = builder.compile(checkpointer=InMemorySaver(), insert_before=["model"])
+    config = {"configurable": {"thread_id": "1"}}
+    paused = graph.invoke({"log": ["user"]}, config)
+    interrupt_id = paused["__interrupt__"][0].id
+    control = RunControl()
+    control.submit_input("insert-1", {"log": ["inserted"]})
+
+    result = graph.invoke(
+        Command(resume={interrupt_id: "yes"} if by_id else "yes"),
+        config,
+        control=control,
+    )
+
+    # the resume is answered as asked; the input waits for a later boundary
+    assert result["seen"] == ["user"]
+    assert result["log"] == ["user", "answered yes"]
+    assert control.take_inputs() == [("insert-1", {"log": ["inserted"]})]
+
+
+def test_insert_before_rejects_unknown_nodes() -> None:
+    graph = _tools_then_model(RunControl())
+
+    with pytest.raises(ValueError, match="missing"):
+        graph.compile(insert_before=["missing"])
+
+
+def test_inserts_are_applied_one_by_one_and_bad_values_skipped() -> None:
+    class InputState(TypedDict, total=False):
+        log: Annotated[list[str], operator.add]
+        note: str
+
+    class FullState(InputState, total=False):
+        seen: list[str]
+
+    control = RunControl()
+
+    def tools(state: FullState) -> FullState:
+        control.submit_input("first", {"note": "a", "log": ["one"]})
+        control.submit_input("bad", {"log": "not a list"})
+        control.submit_input("second", {"note": "b", "log": ["two"]})
+        return {"log": ["tools"]}
+
+    def model(state: FullState) -> FullState:
+        return {"seen": [*state["log"], state.get("note", "")]}
+
+    builder = StateGraph(FullState, input_schema=InputState)
+    builder.add_node("tools", tools)
+    builder.add_node("model", model)
+    builder.add_edge(START, "tools")
+    builder.add_edge("tools", "model")
+    builder.add_edge("model", END)
+    checkpointer = InMemorySaver()
+    graph = builder.compile(checkpointer=checkpointer, insert_before=["model"])
+    config = {"configurable": {"thread_id": "1"}}
+
+    result = graph.invoke({"log": ["user"]}, config, control=control)
+
+    assert result["seen"] == ["user", "tools", "one", "two", "b"]
+    inserted = [
+        snapshot.metadata["inserted_inputs"]
+        for snapshot in graph.get_state_history(config)
+        if snapshot.metadata.get("inserted_inputs")
+    ]
+    assert inserted == [["first", "second"]]
+
+
+def test_inserted_input_waits_while_resuming_from_a_breakpoint() -> None:
+    control = RunControl()
+    graph = _tools_then_model(control).compile(
+        checkpointer=InMemorySaver(),
+        insert_before=["model"],
+        interrupt_before=["model"],
+    )
+    config = {"configurable": {"thread_id": "1"}}
+    graph.invoke({"log": ["user"]}, config)
+    assert graph.get_state(config).next == ("model",)
+
+    result = graph.invoke(None, config, control=control)
+
+    # the breakpoint is passed once; the input waits for a later boundary
+    assert result["seen"] == ["user", "tools"]
+    assert graph.get_state(config).next == ()
+
+
+def test_inserted_input_is_not_applied_without_steps_left() -> None:
+    control = RunControl()
+    graph = _tools_then_model(control).compile(insert_before=["model"])
+
+    with pytest.raises(GraphRecursionError):
+        graph.invoke({"log": ["user"]}, {"recursion_limit": 1}, control=control)
+
+    assert control.take_inputs() == [("insert-1", {"log": ["inserted"]})]
+
+
+def test_inserted_input_keeps_the_recursion_budget() -> None:
+    control = RunControl()
+    graph = _tools_then_model(control).compile(insert_before=["model"])
+    # the smallest limit the graph runs within without inserted input
+    config = {"recursion_limit": 3}
+    _tools_then_model(RunControl()).compile().invoke({"log": ["user"]}, config)
+
+    result = graph.invoke({"log": ["user"]}, config, control=control)
+
+    assert result["seen"] == ["user", "tools", "inserted"]
+
+
+def test_inserted_input_waits_for_a_node_started_by_send() -> None:
+    control = RunControl()
+
+    def tools(state: State) -> State:
+        control.submit_input("insert-1", {"log": ["inserted"]})
+        return {"log": ["tools"]}
+
+    def model(state: State) -> State:
+        return {"seen": list(state["log"])}
+
+    builder = StateGraph(State)
+    builder.add_node("tools", tools)
+    builder.add_node("model", model)
+    builder.add_edge(START, "tools")
+    builder.add_conditional_edges("tools", lambda _: [Send("model", {"log": ["sent"]})])
+    builder.add_edge("model", END)
+
+    result = builder.compile(insert_before=["model"]).invoke(
+        {"log": ["user"]}, control=control
+    )
+
+    # `model` reads its `Send` argument, so the input would never reach it
+    assert result["seen"] == ["sent"]
+    assert control.take_inputs() == [("insert-1", {"log": ["inserted"]})]
@@ -152,83 +152,6 @@ def test_finished_task_does_not_report_answered_interrupt(
        assert asked == [["A1", "B"]]


-def test_finished_task_output_applies_once(
-    sync_checkpointer: BaseCheckpointSaver, durability: Durability
-) -> None:
-    builder = StateGraph(State)
-    builder.add_node("a", lambda s: {"log": [f"a:{interrupt('A')}"]})
-    builder.add_node("b", lambda s: {"log": [f"b:{interrupt('B')}"]})
-    builder.add_node("c", lambda s: {"log": [f"c:{interrupt('C')}"]})
-    builder.add_edge(START, "a")
-    builder.add_edge(START, "b")
-    builder.add_edge(START, "c")
-    graph = builder.compile(checkpointer=sync_checkpointer)
-    config = _config()
-
-    result = graph.invoke({"log": []}, config, durability=durability)
-    while pending := result.get("__interrupt__"):
-        result = graph.invoke(
-            Command(resume={pending[0].id: "yes"}), config, durability=durability
-        )
-
-    assert sorted(result["log"]) == ["a:yes", "b:yes", "c:yes"]
-
-
-def test_resume_with_update_applies_the_update_once(
-    sync_checkpointer: BaseCheckpointSaver, durability: Durability
-) -> None:
-    def ask_three_times(state: State) -> State:
-        answers = [interrupt(str(question)) for question in range(1, 4)]
-        return {"log": ["a:" + "".join(answers)]}
-
-    graph = (
-        StateGraph(State)
-        .add_node("a", ask_three_times)
-        .add_edge(START, "a")
-        .compile(checkpointer=sync_checkpointer)
-    )
-    config = _config()
-
-    result = graph.invoke({"log": []}, config, durability=durability)
-    for i in range(1, 4):
-        result = graph.invoke(
-            Command(resume=str(i), update={"log": [f"u{i}"]}),
-            config,
-            durability=durability,
-        )
-
-    assert sorted(result["log"]) == ["a:123", "u1", "u2", "u3"]
-    assert sorted(graph.get_state(config).values["log"]) == sorted(result["log"])
-
-
-@pytest.mark.parametrize("checkpoint_id", ["none", "head"])
-def test_resume_at_the_latest_checkpoint_does_not_rerun_finished_task(
-    sync_checkpointer: BaseCheckpointSaver, checkpoint_id: str
-) -> None:
-    calls: Counter[str] = Counter()
-    graph = _build_parallel(sync_checkpointer, calls)
-    config = _config()
-    graph.invoke({"log": []}, config)
-
-    def resume(question: str, answer: str) -> Any:
-        snapshot = graph.get_state(config)
-        target = (
-            snapshot.config
-            if checkpoint_id == "head"
-            else {"configurable": {**config["configurable"], "checkpoint_id": None}}
-        )
-        return graph.invoke(
-            Command(resume={_interrupt_by_value(snapshot, question).id: answer}),
-            target,
-        )
-
-    resume("A1", "yes")
-    result = resume("B", "ok")
-
-    assert sorted(result["log"]) == ["a:yes", "b:ok"]
-    assert calls == {"a": 2, "b": 3}, "resuming B ran the finished A again"
-
-
@NEEDS_CONTEXTVARS
 async def test_finished_task_does_not_report_answered_interrupt_async(
    async_checkpointer: BaseCheckpointSaver,
@@ -551,64 +474,6 @@ def test_functional_task_finished_with_none_is_not_rerun(
    assert calls == {"a": 2, "b": 3}


-def test_subgraph_finished_task_is_not_rerun(
-    sync_checkpointer: BaseCheckpointSaver, durability: Durability
-) -> None:
-    calls: Counter[str] = Counter()
-    builder = StateGraph(State)
-    builder.add_node("child", _build_parallel(None, calls))
-    builder.add_edge(START, "child")
-    graph = builder.compile(checkpointer=sync_checkpointer)
-    config = _config()
-
-    graph.invoke({"log": []}, config, durability=durability)
-    snapshot = graph.get_state(config)
-    graph.invoke(
-        Command(resume={_interrupt_by_value(snapshot, "A1").id: "yes"}),
-        config,
-        durability=durability,
-    )
-    snapshot = graph.get_state(config)
-    result = graph.invoke(
-        Command(resume={_interrupt_by_value(snapshot, "B").id: "ok"}),
-        config,
-        durability=durability,
-    )
-
-    assert sorted(result["log"]) == ["a:yes", "b:ok"]
-    assert calls == {"a": 2, "b": 3}, "resuming B ran the finished A again"
-
-
-def test_nested_entrypoint_finished_task_is_not_rerun(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    calls: Counter[str] = Counter()
-
-    @task
-    def step_1(query: str) -> str:
-        calls["step_1"] += 1
-        return f"{query} bar"
-
-    @task
-    def human_feedback(query: str) -> str:
-        calls["human_feedback"] += 1
-        return f"{query} {interrupt('feedback?')}"
-
-    @entrypoint()
-    def child(query: str) -> str:
-        return human_feedback(step_1(query).result()).result()
-
-    @entrypoint(checkpointer=sync_checkpointer)
-    def parent(query: str) -> str:
-        return child.invoke(query)
-
-    config = _config()
-    parent.invoke("foo", config)
-
-    assert parent.invoke(Command(resume="baz"), config) == "foo bar baz"
-    assert calls == {"step_1": 1, "human_feedback": 2}
-
-
 # --- Reading task status from recorded writes ---


@@ -1,8 +1,5 @@
-import asyncio
-import operator
-import sys
 from dataclasses import dataclass
-from typing import Annotated, Any
+from typing import Any

 import pytest
 from langgraph.checkpoint.base import BaseCheckpointSaver
@@ -254,61 +251,3 @@ def test_interrupt_response_schema_invalid_resume_after_earlier_interrupt(
    assert graph.invoke(resume({"approved": True}), config) == {
        "answer": ["ok", Decision(approved=True)]
    }
-
-
-@pytest.mark.skipif(
-    sys.version_info < (3, 11),
-    reason="Python 3.11+ is required for async contextvars support",
-)
-async def test_invalid_resume_lets_other_answered_tasks_finish(
-    async_checkpointer: BaseCheckpointSaver,
-) -> None:
-    """An invalid answer fails the resume without cutting off the other answered tasks.
-
-    A task cancelled after its side effect keeps its answer and runs again on the next
-    resume, so the side effect would happen twice.
-    """
-    sent: list[str] = []
-
-    class State(TypedDict):
-        log: Annotated[list[str], operator.add]
-
-    async def send(state: State) -> State:
-        interrupt("send?", response_schema=Decision)
-        sent.append("email")
-        await asyncio.sleep(0.05)  # waiting on the reply to a request already sent
-        return {"log": ["sent"]}
-
-    async def check(state: State) -> State:
-        interrupt("check?", response_schema=Decision)
-        return {"log": ["checked"]}
-
-    graph = (
-        StateGraph(State)
-        .add_node("send", send)
-        .add_node("check", check)
-        .add_edge(START, "send")
-        .add_edge(START, "check")
-        .compile(checkpointer=async_checkpointer)
-    )
-    config = {"configurable": {"thread_id": "1"}}
-    await graph.ainvoke({"log": []}, config)
-    ids = {i.value: i.id for i in (await graph.aget_state(config)).interrupts}
-
-    with pytest.raises(ValidationError, match="approved"):
-        await graph.ainvoke(
-            Command(
-                resume={
-                    ids["send?"]: {"approved": True},
-                    ids["check?"]: {"approved": "nope"},
-                }
-            ),
-            config,
-        )
-    pending = [i.value for i in (await graph.aget_state(config)).interrupts]
-    assert (pending, sent) == (["check?"], ["email"])
-
-    result = await graph.ainvoke(
-        Command(resume={ids["check?"]: {"approved": True}}), config
-    )
-    assert (sorted(result["log"]), sent) == (["checked", "sent"], ["email"])
@@ -4346,25 +4346,6 @@ def test_enum_node_names():
    assert graph.invoke({"foo": "hello"}) == {"foo": "hello", "bar": "hello!"}


-@pytest.mark.parametrize("stream_mode", ["tasks", "debug"])
-def test_failing_task_result_is_streamed_before_the_error(stream_mode: str) -> None:
-    class State(TypedDict):
-        x: str
-
-    def failing(state: State) -> State:
-        raise ValueError("boom")
-
-    graph = StateGraph(State).add_node("failing", failing).add_edge(START, "failing")
-    errors = []
-    with pytest.raises(ValueError, match="boom"):
-        for chunk in graph.compile().stream({"x": ""}, stream_mode=stream_mode):
-            payload = chunk["payload"] if stream_mode == "debug" else chunk
-            if "error" in payload:
-                errors.append(payload["error"])
-
-    assert [type(error) for error in errors] == [ValueError]
-
-
 def test_debug_retry(sync_checkpointer: BaseCheckpointSaver):
    class State(TypedDict):
        messages: Annotated[list[str], operator.add]
@@ -4429,52 +4410,6 @@ def test_debug_retry(sync_checkpointer: BaseCheckpointSaver):
        assert stream_parent_conf == history_parent_conf


-def test_interrupt_after_streams_the_checkpoint_it_pauses_on(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    class State(TypedDict):
-        x: int
-
-    graph = (
-        StateGraph(State)
-        .add_node("one", lambda state: {"x": 1})
-        .add_node("two", lambda state: {"x": 2})
-        .add_edge(START, "one")
-        .add_edge("one", "two")
-        .compile(checkpointer=sync_checkpointer, interrupt_after=["one"])
-    )
-    config = {"configurable": {"thread_id": "1"}}
-
-    checkpoints = list(graph.stream({"x": 0}, config, stream_mode="checkpoints"))
-
-    state = graph.get_state(config)
-    assert checkpoints[-1]["config"] == state.config
-    assert checkpoints[-1]["next"] == ["two"]
-
-
-def test_recursion_limit_streams_the_last_checkpoint_saved(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    class State(TypedDict):
-        x: int
-
-    graph = (
-        StateGraph(State)
-        .add_node("loop", lambda state: {"x": state["x"] + 1})
-        .add_edge(START, "loop")
-        .add_edge("loop", "loop")
-        .compile(checkpointer=sync_checkpointer)
-    )
-    config = {"configurable": {"thread_id": "1"}, "recursion_limit": 3}
-    checkpoints = []
-
-    with pytest.raises(GraphRecursionError):
-        for chunk in graph.stream({"x": 0}, config, stream_mode="checkpoints"):
-            checkpoints.append(chunk)
-
-    assert checkpoints[-1]["config"] == graph.get_state(config).config
-
-
 def test_debug_subgraphs(
    sync_checkpointer: BaseCheckpointSaver, durability: Durability
 ):
@@ -6945,22 +6880,6 @@ def test_named_tasks_functional() -> None:
    ]


-def test_invoke_tags_reach_a_node_three_subgraphs_deep_once() -> None:
-    class State(TypedDict):
-        copies: int
-
-    def leaf(state: State, config: RunnableConfig) -> State:
-        return {"copies": config["tags"].count("my-tag")}
-
-    graph = StateGraph(State).add_node("leaf", leaf).add_edge(START, "leaf").compile()
-    for _ in range(3):
-        graph = (
-            StateGraph(State).add_node("sub", graph).add_edge(START, "sub").compile()
-        )
-
-    assert graph.invoke({"copies": 0}, {"tags": ["my-tag"]}) == {"copies": 1}
-
-
 def test_tags_stream_mode_messages() -> None:
    model = GenericFakeChatModel(messages=iter(["foo"]), tags=["meow"])
    graph = (
@@ -7818,8 +7737,6 @@ def test_parallel_interrupts(sync_checkpointer: BaseCheckpointSaver) -> None:
 def test_parallel_interrupts_double(sync_checkpointer: BaseCheckpointSaver) -> None:
    # --- CHILD GRAPH ---

-    answered: Counter[str] = Counter()
-
    class ChildState(BaseModel):
        prompt: str = Field(..., description="What is going to be asked to the user?")
        human_input: str | None = Field(None, description="What the human said")
@@ -7829,7 +7746,6 @@ def test_parallel_interrupts_double(sync_checkpointer: BaseCheckpointSaver) -> N

    def get_human_input(state: ChildState):
        human_input = interrupt(state.prompt)
-        answered["human"] += 1

        return dict(
            human_inputs=[human_input],  # update parent state
@@ -7837,7 +7753,6 @@ def test_parallel_interrupts_double(sync_checkpointer: BaseCheckpointSaver) -> N

    def get_dolphin_input(state: ChildState):
        human_input = interrupt(state.prompt)
-        answered["dolphin"] += 1

        return dict(
            human_inputs=[human_input],  # update parent state
@@ -7931,7 +7846,6 @@ def test_parallel_interrupts_double(sync_checkpointer: BaseCheckpointSaver) -> N

    assert invokes == 5
    assert len(events) == 5
-    assert answered == {"human": 2, "dolphin": 2}


 def test_pregel_loop_refcount():
@@ -8950,39 +8864,6 @@ def test_subgraph_streaming_sync() -> None:
    assert result["num_chunks"] == 9


-def test_subgraph_streaming_node_output_messages_sync() -> None:
-    """Messages returned by a node (not streamed by an LLM) are emitted when a
-    graph is explicitly streamed with `stream_mode="messages"` inside a node."""
-
-    def respond(state: MessagesState) -> dict:
-        return {"messages": [AIMessage("hi there", id="ai1")]}
-
-    subgraph = (
-        StateGraph(MessagesState)
-        .add_node("respond", respond)
-        .add_edge(START, "respond")
-        .compile()
-    )
-    msgs = {"messages": [("user", "hello")]}
-
-    top_level = [msg for msg, _ in subgraph.stream(msgs, stream_mode="messages")]
-
-    def parent_node(state: MessagesState, config: RunnableConfig) -> dict:
-        nonlocal in_node
-        in_node = [
-            msg for msg, _ in subgraph.stream(msgs, config, stream_mode="messages")
-        ]
-        return {}
-
-    in_node: list = []
-    StateGraph(MessagesState).add_node("parent", parent_node).add_edge(
-        START, "parent"
-    ).compile().invoke(msgs)
-
-    assert [m.content for m in top_level] == ["hi there"]
-    assert [m.content for m in in_node] == ["hi there"]
-
-
 def test_get_graph_nonterminal_last_step_source(snapshot: SnapshotAssertion) -> None:
    class State(TypedDict):
        messages: list[str]
@@ -5809,60 +5809,6 @@ async def test_store_injected_async(
    )  # still overwriting the same one


-@pytest.mark.parametrize("stream_mode", ["tasks", "debug"])
-async def test_failing_task_result_is_streamed_before_the_error(
-    stream_mode: str,
-) -> None:
-    class State(TypedDict):
-        x: str
-
-    async def failing(state: State) -> State:
-        raise ValueError("boom")
-
-    graph = StateGraph(State).add_node("failing", failing).add_edge(START, "failing")
-    errors = []
-    with pytest.raises(ValueError, match="boom"):
-        async for chunk in graph.compile().astream({"x": ""}, stream_mode=stream_mode):
-            payload = chunk["payload"] if stream_mode == "debug" else chunk
-            if "error" in payload:
-                errors.append(payload["error"])
-
-    assert [type(error) for error in errors] == [ValueError]
-
-
-@pytest.mark.parametrize(
-    ("parallel", "stream_mode"), [(False, "custom"), (True, "values")]
-)
-async def test_graph_error_handler_recovers_on_the_executor_path(
-    parallel: bool, stream_mode: str
-) -> None:
-    class State(TypedDict):
-        x: str
-
-    async def failing(state: State) -> State:
-        raise ValueError("boom")
-
-    async def handler(state: State) -> Command:
-        return Command(update={"x": "handled"}, goto=END)
-
-    builder = (
-        StateGraph(State)
-        .add_node("failing", failing, error_handler=handler)
-        .add_edge(START, "failing")
-    )
-    if parallel:
-        builder.add_node("sibling", lambda state: {}).add_edge(START, "sibling")
-
-    chunks = [
-        chunk
-        async for chunk in builder.compile().astream(
-            {"x": ""}, stream_mode=[stream_mode, "values"]
-        )
-    ]
-
-    assert [c[-1] for c in chunks if c[0] == "values"][-1] == {"x": "handled"}
-
-
 async def test_debug_retry(async_checkpointer: BaseCheckpointSaver):
    class State(TypedDict):
        messages: Annotated[list[str], operator.add]
@@ -5929,55 +5875,6 @@ async def test_debug_retry(async_checkpointer: BaseCheckpointSaver):
        assert stream_parent_conf == history_parent_conf


-async def test_interrupt_after_streams_the_checkpoint_it_pauses_on(
-    async_checkpointer: BaseCheckpointSaver,
-) -> None:
-    class State(TypedDict):
-        x: int
-
-    graph = (
-        StateGraph(State)
-        .add_node("one", lambda state: {"x": 1})
-        .add_node("two", lambda state: {"x": 2})
-        .add_edge(START, "one")
-        .add_edge("one", "two")
-        .compile(checkpointer=async_checkpointer, interrupt_after=["one"])
-    )
-    config = {"configurable": {"thread_id": "1"}}
-
-    checkpoints = [
-        chunk
-        async for chunk in graph.astream({"x": 0}, config, stream_mode="checkpoints")
-    ]
-
-    state = await graph.aget_state(config)
-    assert checkpoints[-1]["config"] == state.config
-    assert checkpoints[-1]["next"] == ["two"]
-
-
-async def test_recursion_limit_streams_the_last_checkpoint_saved(
-    async_checkpointer: BaseCheckpointSaver,
-) -> None:
-    class State(TypedDict):
-        x: int
-
-    graph = (
-        StateGraph(State)
-        .add_node("loop", lambda state: {"x": state["x"] + 1})
-        .add_edge(START, "loop")
-        .add_edge("loop", "loop")
-        .compile(checkpointer=async_checkpointer)
-    )
-    config = {"configurable": {"thread_id": "1"}, "recursion_limit": 3}
-    checkpoints = []
-
-    with pytest.raises(GraphRecursionError):
-        async for chunk in graph.astream({"x": 0}, config, stream_mode="checkpoints"):
-            checkpoints.append(chunk)
-
-    assert checkpoints[-1]["config"] == (await graph.aget_state(config)).config
-
-
 async def test_debug_subgraphs(
    async_checkpointer: BaseCheckpointSaver, durability: Durability
 ):
@@ -6834,31 +6731,6 @@ async def test_multiple_updates() -> None:
    ]


-@NEEDS_CONTEXTVARS
-async def test_task_in_subgraph_node_returns_its_value_with_tools_mode() -> None:
-    class State(TypedDict):
-        out: int | None
-
-    @task
-    async def double(x: int) -> int:
-        return x * 2
-
-    async def node(state: State) -> State:
-        return {"out": await double(21)}
-
-    inner = StateGraph(State).add_node("node", node).add_edge(START, "node").compile()
-    graph = (
-        StateGraph(State).add_node("inner", inner).add_edge(START, "inner").compile()
-    )
-
-    chunks = [
-        chunk
-        async for chunk in graph.astream({"out": None}, stream_mode=["values", "tools"])
-    ]
-
-    assert chunks[-1] == ("values", {"out": 42})
-
-
@NEEDS_CONTEXTVARS
 async def test_falsy_return_from_task(async_checkpointer: BaseCheckpointSaver) -> None:
    """Test with a falsy return from a task."""
@@ -7623,40 +7495,6 @@ async def test_entrypoint_from_async_generator() -> None:
            yield "b"


-@NEEDS_CONTEXTVARS
-@pytest.mark.parametrize("timeout", [None, 30])
-@pytest.mark.parametrize("version", ["v1", "v2"])
-async def test_awaited_task_returns_its_value_under_astream_events(
-    version: Literal["v1", "v2"], timeout: int | None
-) -> None:
-    class State(TypedDict):
-        doubled: int
-        zeroed: int
-
-    @task(timeout=timeout)
-    async def double(x: int) -> int:
-        return x * 2
-
-    @task(timeout=timeout)
-    async def zero() -> int:
-        return 0
-
-    async def node(state: State) -> State:
-        return {"doubled": await double(21), "zeroed": await zero()}
-
-    graph = StateGraph(State).add_node("node", node).add_edge(START, "node").compile()
-
-    outputs = [
-        event["data"]["output"]
-        async for event in graph.astream_events(
-            {"doubled": 0, "zeroed": 1}, version=version
-        )
-        if event["event"] == "on_chain_end" and event["name"] == "node"
-    ]
-
-    assert outputs == [{"doubled": 42, "zeroed": 0}]
-
-
@NEEDS_CONTEXTVARS
 async def test_named_tasks_functional() -> None:
    class Foo:
@@ -9503,44 +9341,6 @@ async def test_subgraph_streaming_async() -> None:
    assert result["num_chunks"] == 9


-async def test_subgraph_streaming_node_output_messages_async() -> None:
-    """Messages returned by a node (not streamed by an LLM) are emitted when a
-    graph is explicitly streamed with `stream_mode="messages"` inside a node."""
-
-    async def respond(state: MessagesState) -> dict:
-        return {"messages": [AIMessage("hi there", id="ai1")]}
-
-    subgraph = (
-        StateGraph(MessagesState)
-        .add_node("respond", respond)
-        .add_edge(START, "respond")
-        .compile()
-    )
-    msgs = {"messages": [("user", "hello")]}
-
-    top_level = [msg async for msg, _ in subgraph.astream(msgs, stream_mode="messages")]
-
-    async def parent_node(state: MessagesState, config: RunnableConfig) -> dict:
-        nonlocal in_node
-        in_node = [
-            msg
-            async for msg, _ in subgraph.astream(msgs, config, stream_mode="messages")
-        ]
-        return {}
-
-    in_node: list = []
-    await (
-        StateGraph(MessagesState)
-        .add_node("parent", parent_node)
-        .add_edge(START, "parent")
-        .compile()
-        .ainvoke(msgs)
-    )
-
-    assert [m.content for m in top_level] == ["hi there"]
-    assert [m.content for m in in_node] == ["hi there"]
-
-
@NEEDS_CONTEXTVARS
 async def test_null_resume_disallowed_with_multiple_interrupts(
    async_checkpointer: BaseCheckpointSaver,
@@ -1,490 +0,0 @@
-import operator
-import sys
-from collections.abc import Callable
-from contextlib import contextmanager
-from threading import Event
-from typing import Annotated, Any
-
-import pytest
-from langchain_core.messages import AIMessage, AnyMessage, HumanMessage
-from langchain_core.runnables import RunnableConfig
-from langgraph.checkpoint.postgres import PostgresSaver
-from langgraph.checkpoint.postgres.base import PRUNE_DELTA_THREADS_SQL, PRUNE_HEADS_SQL
-from typing_extensions import TypedDict
-
-from langgraph.channels.delta import DeltaChannel
-from langgraph.graph import START, StateGraph
-from langgraph.graph.message import _messages_delta_reducer, add_messages
-from langgraph.types import Command, StateSnapshot, interrupt
-from tests.conftest import NO_DOCKER
-from tests.conftest_checkpointer import (
-    DEFAULT_POSTGRES_URI,
-    _checkpointer_postgres,
-    _checkpointer_postgres_aio,
-    _checkpointer_postgres_aio_pipe,
-    _checkpointer_postgres_aio_pool,
-    _checkpointer_postgres_pipe,
-    _checkpointer_postgres_pool,
-)
-
-pytestmark = [
-    pytest.mark.anyio,
-    pytest.mark.skipif(NO_DOCKER, reason="needs Postgres"),
-]
-
-NEEDS_CONTEXTVARS = pytest.mark.skipif(
-    sys.version_info < (3, 11),
-    reason="Python 3.11+ is required for async contextvars support",
-)
-
-SYNC = [
-    _checkpointer_postgres,
-    _checkpointer_postgres_pipe,
-    _checkpointer_postgres_pool,
-]
-ASYNC = [
-    _checkpointer_postgres_aio,
-    _checkpointer_postgres_aio_pipe,
-    _checkpointer_postgres_aio_pool,
-]
-
-
-class State(TypedDict):
-    messages: Annotated[list[AnyMessage], add_messages]
-    notes: Annotated[list[str], operator.add]
-
-
-class DeltaState(TypedDict):
-    messages: Annotated[list[AnyMessage], DeltaChannel(_messages_delta_reducer)]
-
-
-def _reply(ask: bool):
-    def reply(state: dict) -> dict:
-        n = len(state["messages"])
-        answer = interrupt("approve?") if ask else "ok"
-        return {"messages": [AIMessage(f"{answer} {n}", id=f"reply-{n}")]}
-
-    return reply
-
-
-def _graph(
-    checkpointer: Any,
-    *,
-    ask: bool = False,
-    fail: set[str] | None = None,
-    calls: dict[str, int] | None = None,
-    before_fail: Callable[[], None] | None = None,
-) -> Any:
-    def note(name: str):
-        def node(state: State) -> dict:
-            if calls is not None:
-                calls[name] = calls.get(name, 0) + 1
-            if fail is not None and name in fail:
-                if before_fail is not None:
-                    before_fail()
-                fail.discard(name)
-                raise ValueError(f"{name} failed")
-            return {"notes": [name]}
-
-        return node
-
-    builder = StateGraph(State)
-    builder.add_node("left", note("left"))
-    builder.add_node("right", note("right"))
-    builder.add_node("reply", _reply(ask))
-    builder.add_edge(START, "left")
-    builder.add_edge(START, "right")
-    builder.add_edge(["left", "right"], "reply")
-    return builder.compile(checkpointer=checkpointer)
-
-
-def _counting_subgraph(name: str, *, checkpointer: bool | None) -> Any:
-    class Calls(TypedDict):
-        messages: Annotated[list[AnyMessage], add_messages]
-        calls: Annotated[list[str], operator.add]
-
-    def count(state: Calls) -> dict:
-        n = len(state["messages"])
-        reply = AIMessage(f"{name} call {len(state['calls']) + 1}", id=f"{name}-{n}")
-        return {"calls": [name], "messages": [reply]}
-
-    builder = StateGraph(Calls)
-    builder.add_node("count", count)
-    builder.add_edge(START, "count")
-    return builder.compile(checkpointer=checkpointer)
-
-
-def _delta_graph(checkpointer: Any) -> Any:
-    builder = StateGraph(DeltaState)
-    builder.add_node("reply", _reply(ask=False))
-    builder.add_edge(START, "reply")
-    return builder.compile(checkpointer=checkpointer)
-
-
-def _config(thread_id: str) -> RunnableConfig:
-    return {"configurable": {"thread_id": thread_id}}
-
-
-def _say(i: int) -> dict:
-    return {"messages": [HumanMessage(f"hi {i}", id=f"hi-{i}")]}
-
-
-def _checkpoint_ids(checkpointer: Any, thread_id: str) -> list[str]:
-    return [c.checkpoint["id"] for c in checkpointer.list(_config(thread_id))]
-
-
-def _namespaces(checkpointer: Any, thread_id: str) -> list[str]:
-    return sorted(
-        c.config["configurable"]["checkpoint_ns"]
-        for c in checkpointer.list(_config(thread_id))
-    )
-
-
-async def _acheckpoint_ids(checkpointer: Any, thread_id: str) -> list[str]:
-    return [c.checkpoint["id"] async for c in checkpointer.alist(_config(thread_id))]
-
-
-def _parentless(snapshot: StateSnapshot) -> StateSnapshot:
-    return snapshot._replace(
-        parent_config=None,
-        tasks=tuple(
-            t._replace(state=_parentless(t.state))
-            if isinstance(t.state, StateSnapshot)
-            else t
-            for t in snapshot.tasks
-        ),
-    )
-
-
-def _run_once_after(
-    saver: PostgresSaver, sql: str, action: Callable[[], Any], *, nth: int = 1
-) -> None:
-    seen = 0
-    cursor = saver._cursor
-
-    class Hooked:
-        def __init__(self, cur: Any) -> None:
-            self.cur = cur
-
-        def __getattr__(self, name: str) -> Any:
-            return getattr(self.cur, name)
-
-        def execute(self, query: Any, params: Any = None, **kwargs: Any) -> None:
-            nonlocal seen
-            self.cur.execute(query, params, **kwargs)
-            if query is sql:
-                seen += 1
-                if seen == nth:
-                    action()
-
-    @contextmanager
-    def hooked(**kwargs: Any):
-        with cursor(**kwargs) as cur:
-            yield Hooked(cur)
-
-    saver._cursor = hooked
-
-
-@pytest.mark.parametrize("durability", ["sync", "async", "exit"])
-@pytest.mark.parametrize("make_checkpointer", SYNC)
-def test_keep_latest_keeps_the_state_and_the_thread_runs_on_like_its_twin(
-    make_checkpointer: Any, durability: str
-) -> None:
-    with make_checkpointer() as checkpointer:
-        graph = _graph(checkpointer)
-        for i in range(3):
-            for thread_id in ("pruned", "twin"):
-                graph.invoke(_say(i), _config(thread_id), durability=durability)
-        before = graph.get_state(_config("pruned"))
-
-        checkpointer.prune(["pruned"])
-
-        assert _checkpoint_ids(checkpointer, "pruned") == [
-            before.config["configurable"]["checkpoint_id"]
-        ]
-        assert graph.get_state(_config("pruned")) == _parentless(before)
-        for thread_id in ("pruned", "twin"):
-            graph.invoke(_say(3), _config(thread_id), durability=durability)
-        assert (
-            graph.get_state(_config("pruned")).values
-            == graph.get_state(_config("twin")).values
-        )
-
-
-@pytest.mark.parametrize("make_checkpointer", SYNC)
-def test_keep_latest_keeps_a_pending_interrupt_resumable(
-    make_checkpointer: Any,
-) -> None:
-    with make_checkpointer() as checkpointer:
-        graph = _graph(checkpointer, ask=True)
-        for thread_id in ("pruned", "twin"):
-            for i in range(2):
-                graph.invoke(_say(i), _config(thread_id))
-                graph.invoke(Command(resume=f"yes {i}"), _config(thread_id))
-            graph.invoke(_say(2), _config(thread_id))
-        before = graph.get_state(_config("pruned"))
-        assert before.interrupts
-
-        checkpointer.prune(["pruned"])
-
-        assert graph.get_state(_config("pruned")) == _parentless(before)
-        for thread_id in ("pruned", "twin"):
-            graph.invoke(Command(resume="yes 2"), _config(thread_id))
-        assert (
-            graph.get_state(_config("pruned")).values
-            == graph.get_state(_config("twin")).values
-        )
-
-
-@pytest.mark.parametrize("make_checkpointer", SYNC)
-def test_keep_latest_keeps_writes_of_tasks_that_finished_before_a_failure(
-    make_checkpointer: Any, monkeypatch: pytest.MonkeyPatch
-) -> None:
-    with make_checkpointer() as checkpointer:
-        calls: dict[str, int] = {}
-        fail: set[str] = set()
-        left_persisted = Event()
-        put_writes = checkpointer.put_writes
-
-        def persist(config, writes, task_id, task_path=""):
-            put_writes(config, writes, task_id, task_path)
-            if ("notes", ["left"]) in writes:
-                left_persisted.set()
-
-        def wait_for_left() -> None:
-            assert left_persisted.wait(5), "left task writes were not persisted"
-
-        monkeypatch.setattr(checkpointer, "put_writes", persist)
-        graph = _graph(checkpointer, fail=fail, calls=calls, before_fail=wait_for_left)
-        for thread_id in ("pruned", "twin"):
-            for i in range(2):
-                graph.invoke(_say(i), _config(thread_id))
-            left_persisted.clear()
-            fail.add("right")
-            with pytest.raises(ValueError, match="right failed"):
-                graph.invoke(_say(2), _config(thread_id))
-            checkpoint = checkpointer.get_tuple(_config(thread_id))
-            assert checkpoint is not None
-            assert any(
-                channel == "notes" and value == ["left"]
-                for _, channel, value in checkpoint.pending_writes
-            )
-        before = graph.get_state(_config("pruned"))
-
-        checkpointer.prune(["pruned"])
-
-        assert graph.get_state(_config("pruned")) == _parentless(before)
-        left_runs = calls["left"]
-        graph.invoke(None, _config("pruned"))
-        assert calls["left"] == left_runs, "a task that had finished ran again"
-        graph.invoke(None, _config("twin"))
-        assert (
-            graph.get_state(_config("pruned")).values
-            == graph.get_state(_config("twin")).values
-        )
-
-
-@pytest.mark.parametrize("make_checkpointer", SYNC)
-def test_keep_latest_keeps_an_interrupted_subgraph_resumable(
-    make_checkpointer: Any,
-) -> None:
-    with make_checkpointer() as checkpointer:
-        sub = StateGraph(State)
-        sub.add_node("reply", _reply(ask=True))
-        sub.add_edge(START, "reply")
-        parent = StateGraph(State)
-        parent.add_node("sub", sub.compile())
-        parent.add_edge(START, "sub")
-        graph = parent.compile(checkpointer=checkpointer)
-        for thread_id in ("pruned", "twin"):
-            for i in range(2):
-                graph.invoke(_say(i), _config(thread_id))
-                graph.invoke(Command(resume=f"yes {i}"), _config(thread_id))
-            graph.invoke(_say(2), _config(thread_id))
-        before = graph.get_state(_config("pruned"), subgraphs=True)
-        interrupted = before.tasks[0].state.config["configurable"]["checkpoint_ns"]
-
-        checkpointer.prune(["pruned"])
-
-        assert _namespaces(checkpointer, "pruned") == ["", interrupted]
-        assert graph.get_state(_config("pruned"), subgraphs=True) == _parentless(before)
-        for thread_id in ("pruned", "twin"):
-            graph.invoke(Command(resume="yes 2"), _config(thread_id))
-        assert (
-            graph.get_state(_config("pruned")).values
-            == graph.get_state(_config("twin")).values
-        )
-
-
-@pytest.mark.parametrize("durability", ["sync", "async", "exit"])
-@pytest.mark.parametrize("make_checkpointer", SYNC)
-def test_keep_latest_keeps_a_checkpointer_true_subgraph_but_not_finished_calls(
-    make_checkpointer: Any, durability: str
-) -> None:
-    with make_checkpointer() as checkpointer:
-        parent = StateGraph(State)
-        parent.add_node("memory", _counting_subgraph("memory", checkpointer=True))
-        parent.add_node("call", _counting_subgraph("call", checkpointer=None))
-        parent.add_edge(START, "memory")
-        parent.add_edge("memory", "call")
-        graph = parent.compile(checkpointer=checkpointer)
-        for i in range(3):
-            for thread_id in ("pruned", "twin"):
-                graph.invoke(_say(i), _config(thread_id), durability=durability)
-
-        checkpointer.prune(["pruned"])
-
-        assert _namespaces(checkpointer, "pruned") == ["", "memory"]
-        for thread_id in ("pruned", "twin"):
-            graph.invoke(_say(3), _config(thread_id), durability=durability)
-        assert (
-            graph.get_state(_config("pruned")).values
-            == graph.get_state(_config("twin")).values
-        )
-
-
-def test_keep_latest_keeps_a_turn_saved_after_it_read_the_heads() -> None:
-    with (
-        _checkpointer_postgres() as checkpointer,
-        PostgresSaver.from_conn_string(
-            DEFAULT_POSTGRES_URI + checkpointer.conn.info.dbname
-        ) as pruner,
-    ):
-        graph = _graph(checkpointer)
-        for i in range(3):
-            for thread_id in ("pruned", "twin"):
-                graph.invoke(_say(i), _config(thread_id))
-        _run_once_after(
-            pruner, PRUNE_HEADS_SQL, lambda: graph.invoke(_say(3), _config("pruned"))
-        )
-
-        pruner.prune(["pruned"])
-
-        graph.invoke(_say(3), _config("twin"))
-        assert (
-            graph.get_state(_config("pruned")).values
-            == graph.get_state(_config("twin")).values
-        )
-
-
-def test_keep_latest_refuses_a_thread_that_switches_to_a_delta_channel_mid_batch() -> (
-    None
-):
-    with (
-        _checkpointer_postgres() as checkpointer,
-        PostgresSaver.from_conn_string(
-            DEFAULT_POSTGRES_URI + checkpointer.conn.info.dbname
-        ) as pruner,
-    ):
-        graph, delta_graph = _graph(checkpointer), _delta_graph(checkpointer)
-        for i in range(3):
-            for thread_id in ("switched", "twin"):
-                graph.invoke(_say(i), _config(thread_id))
-        _run_once_after(
-            pruner,
-            PRUNE_DELTA_THREADS_SQL,
-            lambda: delta_graph.invoke(_say(3), _config("switched")),
-        )
-
-        with pytest.raises(NotImplementedError, match="switched"):
-            pruner.prune(["switched"])
-
-        delta_graph.invoke(_say(3), _config("twin"))
-        assert (
-            delta_graph.get_state(_config("switched")).values
-            == delta_graph.get_state(_config("twin")).values
-        )
-
-
-def test_keep_latest_keeps_a_delta_channel_turn_saved_after_the_thread_check() -> None:
-    with (
-        _checkpointer_postgres() as checkpointer,
-        PostgresSaver.from_conn_string(
-            DEFAULT_POSTGRES_URI + checkpointer.conn.info.dbname
-        ) as pruner,
-    ):
-        graph, delta_graph = _graph(checkpointer), _delta_graph(checkpointer)
-        for i in range(3):
-            for thread_id in ("switched", "twin"):
-                graph.invoke(_say(i), _config(thread_id))
-        head = _checkpoint_ids(checkpointer, "switched")[0]
-        _run_once_after(
-            pruner,
-            PRUNE_DELTA_THREADS_SQL,
-            lambda: delta_graph.invoke(_say(3), _config("switched")),
-            nth=2,
-        )
-
-        pruner.prune(["switched"])
-
-        assert _checkpoint_ids(checkpointer, "switched")[-1] == head
-        delta_graph.invoke(_say(3), _config("twin"))
-        assert (
-            delta_graph.get_state(_config("switched")).values
-            == delta_graph.get_state(_config("twin")).values
-        )
-
-
-@pytest.mark.parametrize("make_checkpointer", SYNC)
-def test_keep_latest_refuses_a_batch_with_a_delta_channel_thread(
-    make_checkpointer: Any,
-) -> None:
-    with make_checkpointer() as checkpointer:
-        graph, delta_graph = _graph(checkpointer), _delta_graph(checkpointer)
-        for i in range(3):
-            graph.invoke(_say(i), _config("ordinary"))
-            delta_graph.invoke(_say(i), _config("delta"))
-        before = {t: _checkpoint_ids(checkpointer, t) for t in ("ordinary", "delta")}
-        delta_before = delta_graph.get_state(_config("delta"))
-
-        with pytest.raises(NotImplementedError, match="delta"):
-            checkpointer.prune(["ordinary", "delta"])
-
-        assert {t: _checkpoint_ids(checkpointer, t) for t in before} == before
-        assert delta_graph.get_state(_config("delta")) == delta_before
-
-
-@NEEDS_CONTEXTVARS
-@pytest.mark.parametrize("make_checkpointer", ASYNC)
-async def test_akeep_latest_keeps_a_pending_interrupt_resumable(
-    make_checkpointer: Any,
-) -> None:
-    async with make_checkpointer() as checkpointer:
-        graph = _graph(checkpointer, ask=True)
-        for thread_id in ("pruned", "twin"):
-            for i in range(2):
-                await graph.ainvoke(_say(i), _config(thread_id))
-                await graph.ainvoke(Command(resume=f"yes {i}"), _config(thread_id))
-            await graph.ainvoke(_say(2), _config(thread_id))
-        before = await graph.aget_state(_config("pruned"))
-
-        await checkpointer.aprune(["pruned"])
-
-        assert await _acheckpoint_ids(checkpointer, "pruned") == [
-            before.config["configurable"]["checkpoint_id"]
-        ]
-        assert await graph.aget_state(_config("pruned")) == _parentless(before)
-        for thread_id in ("pruned", "twin"):
-            await graph.ainvoke(Command(resume="yes 2"), _config(thread_id))
-        assert (await graph.aget_state(_config("pruned"))).values == (
-            await graph.aget_state(_config("twin"))
-        ).values
-
-
-@pytest.mark.parametrize("make_checkpointer", ASYNC)
-async def test_akeep_latest_refuses_a_batch_with_a_delta_channel_thread(
-    make_checkpointer: Any,
-) -> None:
-    async with make_checkpointer() as checkpointer:
-        graph, delta_graph = _graph(checkpointer), _delta_graph(checkpointer)
-        for i in range(3):
-            await graph.ainvoke(_say(i), _config("ordinary"))
-            await delta_graph.ainvoke(_say(i), _config("delta"))
-        before = {
-            t: await _acheckpoint_ids(checkpointer, t) for t in ("ordinary", "delta")
-        }
-
-        with pytest.raises(NotImplementedError, match="delta"):
-            await checkpointer.aprune(["ordinary", "delta"])
-
-        assert {t: await _acheckpoint_ids(checkpointer, t) for t in before} == before
@@ -16,11 +16,9 @@ from langgraph_sdk.schema import StreamPart
 from pydantic import BaseModel
 from typing_extensions import TypedDict

-from langgraph._internal._constants import CONFIG_KEY_STREAM, CONFIG_KEY_STRICT_RESUME
 from langgraph.errors import GraphInterrupt
 from langgraph.graph import END, START, MessagesState, StateGraph, add_messages
 from langgraph.pregel import Pregel
-from langgraph.pregel.protocol import StreamProtocol
 from langgraph.pregel.remote import RemoteGraph
 from langgraph.types import Interrupt, StateSnapshot
 from tests.any_str import AnyStr
@@ -821,131 +819,6 @@ async def test_astream():
    ]


-_CALLER_CONFIG: RunnableConfig = {
-    "configurable": {"thread_id": "thread_1", "checkpoint_ns": "outer:123"}
-}
-_SUBGRAPH_PARTS = [
-    StreamPart(event="values|sub:abc", data={"chunk": "inner"}),
-    StreamPart(event="values", data={"chunk": "root"}),
-]
-_CALLER_PREFIXED = [
-    (("outer:123", "sub:abc"), {"chunk": "inner"}),
-    (("outer:123",), {"chunk": "root"}),
-]
-
-
-def test_stream_subgraphs_keeps_caller_namespace():
-    mock_sync_client = MagicMock()
-    mock_sync_client.runs.stream.return_value = _SUBGRAPH_PARTS
-    remote_pregel = RemoteGraph("test_graph_id", sync_client=mock_sync_client)
-
-    stream_parts = list(
-        remote_pregel.stream(
-            {"input": "data"}, _CALLER_CONFIG, stream_mode="values", subgraphs=True
-        )
-    )
-
-    assert stream_parts == _CALLER_PREFIXED
-
-
-async def test_astream_subgraphs_keeps_caller_namespace():
-    mock_async_client = MagicMock()
-    async_iter = MagicMock()
-    async_iter.__aiter__.return_value = _SUBGRAPH_PARTS
-    mock_async_client.runs.stream.return_value = async_iter
-    remote_pregel = RemoteGraph("test_graph_id", client=mock_async_client)
-
-    stream_parts = [
-        part
-        async for part in remote_pregel.astream(
-            {"input": "data"}, _CALLER_CONFIG, stream_mode="values", subgraphs=True
-        )
-    ]
-
-    assert stream_parts == _CALLER_PREFIXED
-
-
-# Subgraph events requested only on behalf of a streaming parent graph
-_PARENT_STREAMED_PARTS = [
-    StreamPart(event="updates|sub:abc", data={"inner": {"chunk": "inner"}}),
-    StreamPart(event="messages|sub:abc", data=[{"content": "token"}, {}]),
-    StreamPart(event="updates", data={"sub": {"chunk": "root"}}),
-]
-
-
-def _parent_streamed_config(parent_parts: list) -> RunnableConfig:
-    return {
-        "configurable": {
-            "thread_id": "thread_1",
-            "checkpoint_ns": "outer:123",
-            CONFIG_KEY_STREAM: StreamProtocol(
-                parent_parts.append, {"updates", "messages"}
-            ),
-        }
-    }
-
-
-def test_stream_without_subgraphs_skips_parent_requested_subgraph_events():
-    mock_sync_client = MagicMock()
-    mock_sync_client.runs.stream.return_value = _PARENT_STREAMED_PARTS
-    remote_pregel = RemoteGraph("test_graph_id", sync_client=mock_sync_client)
-
-    for stream_mode, expected in [
-        ("updates", [{"sub": {"chunk": "root"}}]),
-        # messages are not filtered: the server dedupes them across namespaces
-        ("messages", [({"content": "token"}, {})]),
-    ]:
-        parent_parts: list = []
-        stream_parts = list(
-            remote_pregel.stream(
-                {"input": "data"},
-                _parent_streamed_config(parent_parts),
-                stream_mode=stream_mode,
-            )
-        )
-
-        assert stream_parts == expected
-        # subgraph events are still requested and forwarded to the parent
-        assert mock_sync_client.runs.stream.call_args.kwargs["stream_subgraphs"]
-        assert [ns for ns, _, _ in parent_parts] == [
-            ("outer:123", "sub:abc"),
-            ("outer:123", "sub:abc"),
-            ("outer:123",),
-        ]
-
-
-async def test_astream_without_subgraphs_skips_parent_requested_subgraph_events():
-    mock_async_client = MagicMock()
-    async_iter = MagicMock()
-    async_iter.__aiter__.return_value = _PARENT_STREAMED_PARTS
-    mock_async_client.runs.stream.return_value = async_iter
-    remote_pregel = RemoteGraph("test_graph_id", client=mock_async_client)
-
-    for stream_mode, expected in [
-        ("updates", [{"sub": {"chunk": "root"}}]),
-        # messages are not filtered: the server dedupes them across namespaces
-        ("messages", [({"content": "token"}, {})]),
-    ]:
-        parent_parts: list = []
-        stream_parts = [
-            part
-            async for part in remote_pregel.astream(
-                {"input": "data"},
-                _parent_streamed_config(parent_parts),
-                stream_mode=stream_mode,
-            )
-        ]
-
-        assert stream_parts == expected
-        # subgraph events are still requested and forwarded to the parent
-        assert mock_async_client.runs.stream.call_args.kwargs["stream_subgraphs"]
-        assert [ns for ns, _, _ in parent_parts] == [
-            ("outer:123", "sub:abc"),
-            ("outer:123", "sub:abc"),
-            ("outer:123",),
-        ]
-
-
 def test_invoke():
    # set up test
    mock_sync_client = MagicMock()
@@ -1360,7 +1233,6 @@ def test_sanitize_config():
            "checkpoint_map": {"key": "value"},  # Should be dropped
            "checkpoint_id": "123",  # Should be dropped
            "checkpoint_ns": "ns",  # Should be dropped
-            CONFIG_KEY_STRICT_RESUME: True,  # Should be dropped
        }
    }
    sanitized = remote._sanitize_config(config_with_drops)
@@ -2097,47 +2097,6 @@ def test_graph_error_handler_can_route_with_command():
    assert result["foo"] == "handled_next"


-# Each case runs the failing node on the executor path instead of the
-# single-task fast path.
-@pytest.mark.parametrize(
-    ("parallel", "stream_mode", "subgraphs"),
-    [
-        (False, "custom", False),
-        (False, "messages", False),
-        (False, "values", True),
-        (True, "values", False),
-    ],
-)
-def test_graph_error_handler_recovers_on_the_executor_path(
-    parallel: bool, stream_mode: str, subgraphs: bool
-) -> None:
-    class State(TypedDict):
-        x: str
-
-    def failing(state: State) -> State:
-        raise ValueError("boom")
-
-    def handler(state: State) -> Command:
-        return Command(update={"x": "handled"}, goto=END)
-
-    builder = (
-        StateGraph(State)
-        .add_node("failing", failing, error_handler=handler)
-        .add_edge(START, "failing")
-    )
-    if parallel:
-        builder.add_node("sibling", lambda state: {}).add_edge(START, "sibling")
-    graph = builder.compile()
-
-    chunks = list(
-        graph.stream(
-            {"x": ""}, stream_mode=[stream_mode, "values"], subgraphs=subgraphs
-        )
-    )
-
-    assert [c[-1] for c in chunks if c[-2] == "values"][-1] == {"x": "handled"}
-
-
 def test_graph_error_handler_failure_fails_run():
    class State(TypedDict):
        foo: str
@@ -1,308 +0,0 @@
-import sys
-from typing import Any
-
-import pytest
-from langchain_core.language_models.fake_chat_models import GenericFakeChatModel
-from langchain_core.messages import AIMessage
-from langchain_core.tools import tool
-
-from langgraph.func import entrypoint, task
-from langgraph.graph import START, MessagesState, StateGraph
-from langgraph.graph.message import push_message
-from langgraph.graph.state import CompiledStateGraph
-
-pytestmark = pytest.mark.anyio
-
-NEEDS_CONTEXTVARS = pytest.mark.skipif(
-    sys.version_info < (3, 11),
-    reason="Python 3.11+ is required for async contextvars support",
-)
-
-
-@tool
-def echo(text: str) -> str:
-    """Echo the text."""
-    return text
-
-
-def _one_node_graph(node: Any) -> CompiledStateGraph:
-    return (
-        StateGraph(MessagesState)
-        .add_node(node)
-        .add_edge(START, node.__name__)
-        .compile()
-    )
-
-
-def _chat_and_echo(state: MessagesState) -> dict:
-    echo.invoke({"text": "done"})
-    return {"messages": [GenericFakeChatModel(messages=iter(["one two"])).invoke("hi")]}
-
-
-async def _achat_and_echo(state: MessagesState) -> dict:
-    await echo.ainvoke({"text": "done"})
-    model = GenericFakeChatModel(messages=iter(["one two"]))
-    return {"messages": [await model.ainvoke("hi")]}
-
-
-def _segment_names(ns: tuple[str, ...]) -> tuple[str, ...]:
-    return tuple(segment.split(":")[0] for segment in ns)
-
-
-def _summary(part: dict) -> tuple[tuple[str, ...], str]:
-    if part["type"] == "messages":
-        return _segment_names(part["ns"]), part["data"][0].content
-    return _segment_names(part["ns"]), part["data"]["event"]
-
-
-_CHAT_AND_ECHO_EVENTS = [
-    ((), "tool-started"),
-    ((), "tool-finished"),
-    ((), "one"),
-    ((), " "),
-    ((), "two"),
-]
-
-_CHILD_CONFIGS = pytest.mark.parametrize(
-    "child_config",
-    [
-        None,
-        {"configurable": {"thread_id": "child"}},
-        {"configurable": {"thread_id": "parent"}},
-    ],
-    ids=["no_config", "own_thread", "caller_thread"],
-)
-
-
-_TASK_CALLERS = pytest.mark.parametrize(
-    "nested", [False, True], ids=["from_entrypoint", "from_task_in_task"]
-)
-
-
-@_TASK_CALLERS
-@pytest.mark.parametrize("subgraphs", [False, True])
-def test_task_events_stream_under_the_graph_namespace(
-    nested: bool, subgraphs: bool
-) -> None:
-    @task
-    def chat_and_echo() -> None:
-        _chat_and_echo({"messages": []})
-
-    @task
-    def outer() -> None:
-        chat_and_echo().result()
-
-    @entrypoint()
-    def workflow(inputs: dict) -> None:
-        (outer() if nested else chat_and_echo()).result()
-
-    parts = workflow.stream(
-        {}, stream_mode=["messages", "tools"], subgraphs=subgraphs, version="v2"
-    )
-
-    assert [_summary(part) for part in parts] == _CHAT_AND_ECHO_EVENTS
-
-
-@NEEDS_CONTEXTVARS
-@_TASK_CALLERS
-@pytest.mark.parametrize("subgraphs", [False, True])
-async def test_task_events_stream_under_the_graph_namespace_async(
-    nested: bool, subgraphs: bool
-) -> None:
-    @task
-    async def chat_and_echo() -> None:
-        await _achat_and_echo({"messages": []})
-
-    @task
-    async def outer() -> None:
-        await chat_and_echo()
-
-    @entrypoint()
-    async def workflow(inputs: dict) -> None:
-        await (outer() if nested else chat_and_echo())
-
-    parts = workflow.astream(
-        {}, stream_mode=["messages", "tools"], subgraphs=subgraphs, version="v2"
-    )
-
-    assert [_summary(part) async for part in parts] == _CHAT_AND_ECHO_EVENTS
-
-
-def test_task_events_stream_under_the_namespace_of_their_subgraph() -> None:
-    @task
-    def chat_and_echo() -> None:
-        _chat_and_echo({"messages": []})
-
-    def node(state: MessagesState) -> dict:
-        chat_and_echo().result()
-        return {}
-
-    sub = _one_node_graph(node)
-    parent = StateGraph(MessagesState).add_node("sub", sub).add_edge(START, "sub")
-
-    parts = parent.compile().stream(
-        {"messages": []},
-        stream_mode=["messages", "tools"],
-        subgraphs=True,
-        version="v2",
-    )
-
-    assert [_summary(part) for part in parts] == [
-        (("sub",), event) for _, event in _CHAT_AND_ECHO_EVENTS
-    ]
-
-
-@_CHILD_CONFIGS
-def test_child_graph_streams_only_to_the_node_streaming_it(
-    child_config: dict | None,
-) -> None:
-    child = _one_node_graph(_chat_and_echo)
-    received = []
-
-    def node(state: MessagesState) -> dict:
-        received.extend(
-            child.stream(
-                {"messages": []}, child_config, stream_mode=["messages", "tools"]
-            )
-        )
-        return {}
-
-    parts = _one_node_graph(node).stream(
-        {"messages": []},
-        {"configurable": {"thread_id": "parent"}},
-        stream_mode=["messages", "tools"],
-    )
-
-    assert list(parts) == []
-    assert len(received) == len(_CHAT_AND_ECHO_EVENTS)
-
-
-@NEEDS_CONTEXTVARS
-@_CHILD_CONFIGS
-async def test_child_graph_streams_only_to_the_node_streaming_it_async(
-    child_config: dict | None,
-) -> None:
-    child = _one_node_graph(_achat_and_echo)
-    received = []
-
-    async def node(state: MessagesState) -> dict:
-        stream = child.astream(
-            {"messages": []}, child_config, stream_mode=["messages", "tools"]
-        )
-        received.extend([part async for part in stream])
-        return {}
-
-    parts = _one_node_graph(node).astream(
-        {"messages": []},
-        {"configurable": {"thread_id": "parent"}},
-        stream_mode=["messages", "tools"],
-    )
-
-    assert [part async for part in parts] == []
-    assert len(received) == len(_CHAT_AND_ECHO_EVENTS)
-
-
-@pytest.mark.parametrize(
-    "child_config",
-    [
-        {"configurable": {"thread_id": "child"}},
-        {"configurable": {"thread_id": "parent"}},
-    ],
-    ids=["own_thread", "caller_thread"],
-)
-def test_child_graph_on_its_own_thread_skips_a_caller_streaming_subgraphs(
-    child_config: dict,
-) -> None:
-    child = _one_node_graph(_chat_and_echo)
-
-    def node(state: MessagesState) -> dict:
-        child.invoke({"messages": []}, child_config)
-        return {}
-
-    parts = _one_node_graph(node).stream(
-        {"messages": []},
-        {"configurable": {"thread_id": "parent"}},
-        stream_mode=["messages", "tools"],
-        subgraphs=True,
-    )
-
-    assert list(parts) == []
-
-
-def test_node_gets_the_events_of_every_subgraph_it_streams() -> None:
-    sub = _one_node_graph(_chat_and_echo)
-    counts = []
-
-    def node(state: MessagesState) -> dict:
-        for _ in range(2):
-            stream = sub.stream({"messages": []}, stream_mode=["messages", "tools"])
-            counts.append(len(list(stream)))
-        return {}
-
-    _one_node_graph(node).invoke({"messages": []})
-
-    assert counts == [len(_CHAT_AND_ECHO_EVENTS)] * 2
-
-
-@NEEDS_CONTEXTVARS
-async def test_node_gets_the_events_of_every_subgraph_it_streams_async() -> None:
-    sub = _one_node_graph(_achat_and_echo)
-    counts = []
-
-    async def node(state: MessagesState) -> dict:
-        for _ in range(2):
-            stream = sub.astream({"messages": []}, stream_mode=["messages", "tools"])
-            counts.append(len([part async for part in stream]))
-        return {}
-
-    await _one_node_graph(node).ainvoke({"messages": []})
-
-    assert counts == [len(_CHAT_AND_ECHO_EVENTS)] * 2
-
-
-def _push(state: MessagesState) -> dict:
-    push_message(AIMessage(id="pushed", content="hi"), state_key=None)
-    return {}
-
-
-def _namespaces(graph: CompiledStateGraph, subgraphs: bool) -> list[tuple[str, ...]]:
-    parts = graph.stream(
-        {"messages": []}, stream_mode="messages", subgraphs=subgraphs, version="v2"
-    )
-    return [_segment_names(part["ns"]) for part in parts]
-
-
-def _streams_pushing_graph(received: list) -> Any:
-    pushing = _one_node_graph(_push)
-
-    def node(state: MessagesState) -> dict:
-        for message, _ in pushing.stream({"messages": []}, stream_mode="messages"):
-            received.append(message.id)
-        return {}
-
-    return node
-
-
-def test_pushed_message_streams_under_the_namespace_of_its_graph() -> None:
-    pushing = _one_node_graph(_push)
-    parent = StateGraph(MessagesState).add_node("sub", pushing).add_edge(START, "sub")
-
-    assert _namespaces(pushing, subgraphs=True) == [()]
-    assert _namespaces(parent.compile(), subgraphs=False) == []
-    assert _namespaces(parent.compile(), subgraphs=True) == [("sub",)]
-
-
-def test_pushed_message_streams_to_the_node_that_streams_its_graph() -> None:
-    received: list[str] = []
-    graph = _one_node_graph(_streams_pushing_graph(received))
-
-    assert _namespaces(graph, subgraphs=False) == []
-    assert received == ["pushed"]
-
-
-def test_pushed_message_streams_to_every_stream_that_takes_it() -> None:
-    received: list[str] = []
-    graph = _one_node_graph(_streams_pushing_graph(received))
-
-    assert _namespaces(graph, subgraphs=True) == [("node",)]
-    assert received == ["pushed"]
@@ -1,423 +0,0 @@
-import operator
-import sys
-import uuid
-from typing import Annotated
-
-import pytest
-from langchain_core.runnables import RunnableConfig
-from langchain_core.runnables.config import get_executor_for_config
-from langgraph.checkpoint.base import BaseCheckpointSaver
-from typing_extensions import TypedDict
-from xxhash import xxh3_128_hexdigest
-
-from langgraph._internal._constants import CONFIG_KEY_STRICT_RESUME, INTERRUPT
-from langgraph.errors import UnknownInterruptError
-from langgraph.graph import START, StateGraph
-from langgraph.graph.state import CompiledStateGraph
-from langgraph.types import Command, Durability, Interrupt, RetryPolicy, interrupt
-
-pytestmark = pytest.mark.anyio
-NEEDS_CONTEXTVARS = pytest.mark.skipif(
-    sys.version_info < (3, 11),
-    reason="Python 3.11+ is required for async contextvars support",
-)
-
-UNKNOWN_ID = "0" * 32
-
-
-class State(TypedDict, total=False):
-    log: Annotated[list[str], operator.add]
-
-
-def _config(*, strict: bool = True) -> RunnableConfig:
-    return {
-        "configurable": {
-            "thread_id": str(uuid.uuid4()),
-            CONFIG_KEY_STRICT_RESUME: strict,
-        }
-    }
-
-
-def _parallel(checkpointer: BaseCheckpointSaver) -> CompiledStateGraph:
-    def a(state: State):
-        return {"log": [f"a:{interrupt('a?')}"]}
-
-    def b(state: State):
-        return {"log": [f"b:{interrupt('b?')}"]}
-
-    return (
-        StateGraph(State)
-        .add_node("a", a)
-        .add_node("b", b)
-        .add_edge(START, "a")
-        .add_edge(START, "b")
-        .compile(checkpointer=checkpointer)
-    )
-
-
-def _ask_twice(checkpointer: BaseCheckpointSaver) -> CompiledStateGraph:
-    def ask_twice(state: State):
-        first = interrupt("first?")
-        second = interrupt("second?")
-        return {"log": [f"{first},{second}"]}
-
-    return (
-        StateGraph(State)
-        .add_node("ask", ask_twice)
-        .add_edge(START, "ask")
-        .compile(checkpointer=checkpointer)
-    )
-
-
-def _ask_then_fail_once(checkpointer: BaseCheckpointSaver) -> CompiledStateGraph:
-    failures = [ConnectionError("flaky api")]
-
-    def ask(state: State):
-        answer = interrupt("delete a.txt?")
-        if failures:
-            raise failures.pop()
-        return {"log": [answer]}
-
-    return (
-        StateGraph(State)
-        .add_node(
-            "ask", ask, retry_policy=RetryPolicy(initial_interval=0, jitter=False)
-        )
-        .add_edge(START, "ask")
-        .compile(checkpointer=checkpointer)
-    )
-
-
-def _pending_ids(graph: CompiledStateGraph, config: RunnableConfig) -> dict[str, str]:
-    return {i.value: i.id for i in graph.get_state(config).interrupts}
-
-
-def test_unknown_id_is_refused_before_anything_is_written(
-    sync_checkpointer: BaseCheckpointSaver, durability: Durability
-) -> None:
-    graph = _parallel(sync_checkpointer)
-    config = _config()
-    graph.invoke({"log": []}, config, durability=durability)
-    before = graph.get_state(config)
-    checkpoints = len(list(sync_checkpointer.list(config)))
-    ids = _pending_ids(graph, config)
-
-    with pytest.raises(
-        UnknownInterruptError,
-        match=f"Unknown or already-consumed interrupt: {UNKNOWN_ID}",
-    ) as refused:
-        graph.invoke(Command(resume={UNKNOWN_ID: "x"}), config, durability=durability)
-
-    assert (
-        refused.value.reason,
-        refused.value.interrupt_ids,
-        refused.value.pending_ids,
-    ) == ("not_pending", (UNKNOWN_ID,), tuple(sorted(ids.values())))
-    after = graph.get_state(config)
-    assert len(list(sync_checkpointer.list(config))) == checkpoints
-    assert (after.values, after.next, after.interrupts) == (
-        before.values,
-        before.next,
-        before.interrupts,
-    )
-    result = graph.invoke(
-        Command(resume={ids["a?"]: "yes", ids["b?"]: "no"}),
-        config,
-        durability=durability,
-    )
-    assert sorted(result["log"]) == ["a:yes", "b:no"]
-
-
-def test_an_answered_id_is_refused(sync_checkpointer: BaseCheckpointSaver) -> None:
-    graph = _parallel(sync_checkpointer)
-    config = _config()
-    graph.invoke({"log": []}, config)
-    ids = _pending_ids(graph, config)
-    graph.invoke(Command(resume={ids["a?"]: "yes"}), config)
-
-    with pytest.raises(UnknownInterruptError, match=ids["a?"]) as refused:
-        graph.invoke(Command(resume={ids["a?"]: "again"}), config)
-
-    assert (
-        refused.value.reason,
-        refused.value.interrupt_ids,
-        refused.value.pending_ids,
-    ) == ("not_pending", (ids["a?"],), (ids["b?"],))
-
-    result = graph.invoke(Command(resume={ids["b?"]: "no"}), config)
-    assert sorted(result["log"]) == ["a:yes", "b:no"]
-
-
-def test_an_empty_map_is_refused(sync_checkpointer: BaseCheckpointSaver) -> None:
-    graph = _parallel(sync_checkpointer)
-    config = _config()
-    graph.invoke({"log": []}, config)
-
-    with pytest.raises(UnknownInterruptError, match="names no interrupt") as refused:
-        graph.invoke(Command(resume={}), config)
-
-    assert (
-        refused.value.reason,
-        refused.value.interrupt_ids,
-        refused.value.pending_ids,
-    ) == ("empty_map", (), tuple(sorted(_pending_ids(graph, config).values())))
-
-
-def test_one_value_is_refused_while_several_are_pending(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    graph = _parallel(sync_checkpointer)
-    config = _config()
-    graph.invoke({"log": []}, config)
-
-    with pytest.raises(
-        UnknownInterruptError, match="multiple pending interrupts"
-    ) as refused:
-        graph.invoke(Command(resume="yes"), config)
-
-    ids = _pending_ids(graph, config)
-    assert (refused.value.reason, refused.value.pending_ids) == (
-        "ambiguous",
-        tuple(sorted(ids.values())),
-    )
-    graph.invoke(Command(resume={ids["a?"]: "yes"}), config)
-    result = graph.invoke(Command(resume="no"), config)
-    assert sorted(result["log"]) == ["a:yes", "b:no"]
-
-
-def test_one_value_resumes_a_static_breakpoint(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    graph = (
-        StateGraph(State)
-        .add_node("a", lambda state: {"log": ["a"]})
-        .add_edge(START, "a")
-        .compile(checkpointer=sync_checkpointer, interrupt_before=["a"])
-    )
-    config = _config()
-    graph.invoke({"log": []}, config)
-
-    with pytest.raises(UnknownInterruptError, match=UNKNOWN_ID):
-        graph.invoke(Command(resume={UNKNOWN_ID: "x"}), config)
-
-    assert graph.invoke(Command(resume="go"), config) == {"log": ["a"]}
-
-
-def test_without_strict_mode_nothing_changes(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    graph = _parallel(sync_checkpointer)
-    config = _config(strict=False)
-    graph.invoke({"log": []}, config)
-
-    graph.invoke(Command(resume={UNKNOWN_ID: "x"}), config)
-    assert set(_pending_ids(graph, config)) == {"a?", "b?"}
-    with pytest.raises(RuntimeError, match="multiple pending interrupts"):
-        graph.invoke(Command(resume="yes"), config)
-
-
-def test_a_subgraph_interrupt_is_answered_by_its_id(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    def ask(state: State):
-        return {"log": [f"asked:{interrupt('sub?')}"]}
-
-    subgraph = StateGraph(State).add_node("ask", ask).add_edge(START, "ask").compile()
-    graph = (
-        StateGraph(State)
-        .add_node("sub", subgraph)
-        .add_edge(START, "sub")
-        .compile(checkpointer=sync_checkpointer)
-    )
-    config = _config()
-    graph.invoke({"log": []}, config)
-
-    result = graph.invoke(
-        Command(resume={_pending_ids(graph, config)["sub?"]: "yes"}), config
-    )
-    assert result["log"] == ["asked:yes"]
-
-
-def test_a_second_interrupt_in_one_node_gets_its_own_id(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    graph = _ask_twice(sync_checkpointer)
-    config = _config()
-    graph.invoke({"log": []}, config)
-    state = graph.get_state(config)
-    (card,) = state.interrupts
-    assert card.id == xxh3_128_hexdigest(f"ask:{state.tasks[0].id}".encode())
-    graph.invoke(Command(resume={card.id: "1"}), config)
-    (second,) = graph.get_state(config).interrupts
-    assert second.id != card.id
-
-    result = graph.invoke(Command(resume={second.id: "2"}), config)
-    assert result["log"] == ["1,2"]
-
-
-def test_a_retried_answer_in_one_node_is_refused(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    graph = _ask_twice(sync_checkpointer)
-    config = _config()
-    graph.invoke({"log": []}, config)
-    (card,) = graph.get_state(config).interrupts
-    graph.invoke(Command(resume={card.id: "yes"}), config)
-    (second,) = graph.get_state(config).interrupts
-
-    with pytest.raises(UnknownInterruptError) as refused:
-        graph.invoke(Command(resume={card.id: "yes"}), config)
-
-    assert (
-        refused.value.reason,
-        refused.value.interrupt_ids,
-        refused.value.pending_ids,
-    ) == ("not_pending", (card.id,), (second.id,))
-    result = graph.invoke(Command(resume={second.id: "no"}), config)
-    assert result["log"] == ["yes,no"]
-
-
-def test_parallel_interrupts_in_one_node_each_take_an_answer(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    def ask(name: str) -> str:
-        return interrupt(f"{name}?")
-
-    def ask_in_parallel(state: State, config: RunnableConfig):
-        with get_executor_for_config(config) as pool:
-            b = pool.submit(ask, "b")
-            b.exception()
-            a = pool.submit(ask, "a")
-            return {"log": [f"{a.result()},{b.result()}"]}
-
-    graph = (
-        StateGraph(State)
-        .add_node("ask", ask_in_parallel)
-        .add_edge(START, "ask")
-        .compile(checkpointer=sync_checkpointer)
-    )
-    config = _config()
-    graph.invoke({"log": []}, config)
-    for answer in ("1", "2"):
-        (card,) = graph.get_state(config).interrupts
-        graph.invoke(Command(resume={card.id: answer}), config)
-
-    assert graph.get_state(config).next == ()
-
-
-def test_a_later_interrupt_saved_with_the_first_id_is_still_answered(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    graph = _ask_twice(sync_checkpointer)
-    config = _config()
-    graph.invoke({"log": []}, config)
-    (card,) = graph.get_state(config).interrupts
-    graph.invoke(Command(resume={card.id: "1"}), config)
-    state = graph.get_state(config)
-    sync_checkpointer.put_writes(
-        state.config,
-        [(INTERRUPT, (Interrupt(value="second?", id=card.id),))],
-        state.tasks[0].id,
-    )
-
-    result = graph.invoke(Command(resume={card.id: "2"}), config)
-    assert result["log"] == ["1,2"]
-
-
-def test_a_retried_node_reuses_its_answer(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    graph = _ask_then_fail_once(sync_checkpointer)
-    config = _config()
-    graph.invoke({"log": []}, config)
-    (card,) = graph.get_state(config).interrupts
-
-    result = graph.invoke(Command(resume={card.id: "yes"}), config)
-    assert result["log"] == ["yes"]
-
-
-def test_a_card_whose_resumed_task_raised_is_not_refused(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    failures = ["once"]
-
-    def ask_then_fail_once(state: State):
-        answer = interrupt("approve?")
-        if failures:
-            failures.pop()
-            raise ValueError("failed after the answer")
-        return {"log": [f"answered:{answer}"]}
-
-    graph = (
-        StateGraph(State)
-        .add_node("ask", ask_then_fail_once)
-        .add_edge(START, "ask")
-        .compile(checkpointer=sync_checkpointer)
-    )
-    config = _config()
-    graph.invoke({"log": []}, config)
-    (card,) = graph.get_state(config).interrupts
-    with pytest.raises(ValueError, match="failed after the answer"):
-        graph.invoke(Command(resume={card.id: "first"}), config)
-
-    graph.invoke(Command(resume={card.id: "second"}), config)
-    assert graph.get_state(config).next == ()
-
-
-def test_a_pinned_head_checkpoint_is_checked(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    graph = _parallel(sync_checkpointer)
-    config = _config()
-    graph.invoke({"log": []}, config)
-    head = graph.get_state(config).config
-    pinned = {"configurable": {**config["configurable"], **head["configurable"]}}
-
-    with pytest.raises(UnknownInterruptError):
-        graph.invoke(Command(resume={UNKNOWN_ID: "x"}), pinned)
-
-    ids = _pending_ids(graph, config)
-    result = graph.invoke(Command(resume={ids["a?"]: "yes", ids["b?"]: "no"}), pinned)
-    assert sorted(result["log"]) == ["a:yes", "b:no"]
-
-
-def test_a_superseded_checkpoint_is_not_checked(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    graph = _parallel(sync_checkpointer)
-    config = _config()
-    graph.invoke({"log": []}, config)
-    paused = graph.get_state(config).config
-    ids = _pending_ids(graph, config)
-    graph.invoke(Command(resume={ids["a?"]: "yes", ids["b?"]: "no"}), config)
-
-    pinned = {"configurable": {**config["configurable"], **paused["configurable"]}}
-    graph.invoke(Command(resume={ids["a?"]: "again", ids["b?"]: "again"}), pinned)
-
-
-@NEEDS_CONTEXTVARS
-async def test_unknown_id_is_refused_async(
-    async_checkpointer: BaseCheckpointSaver,
-) -> None:
-    graph = _parallel(async_checkpointer)
-    config = _config()
-    await graph.ainvoke({"log": []}, config)
-
-    with pytest.raises(UnknownInterruptError, match=UNKNOWN_ID):
-        await graph.ainvoke(Command(resume={UNKNOWN_ID: "x"}), config)
-
-    state = await graph.aget_state(config)
-    assert {i.value for i in state.interrupts} == {"a?", "b?"}
-
-
-@NEEDS_CONTEXTVARS
-async def test_a_retried_node_reuses_its_answer_async(
-    async_checkpointer: BaseCheckpointSaver,
-) -> None:
-    graph = _ask_then_fail_once(async_checkpointer)
-    config = _config()
-    await graph.ainvoke({"log": []}, config)
-    (card,) = (await graph.aget_state(config)).interrupts
-
-    result = await graph.ainvoke(Command(resume={card.id: "yes"}), config)
-    assert result["log"] == ["yes"]
@@ -1177,43 +1177,6 @@ def test_subgraph_interrupt_resume_with_explicit_head_checkpoint_id(
    assert result["value"] == ["sub_a", "human:answer", "sub_b"]


-def test_subgraph_replay_reasks_answered_parallel_interrupt(
-    sync_checkpointer: BaseCheckpointSaver,
-) -> None:
-    """Replaying a subgraph checkpoint asks its step's questions again, including
-    one already answered. An update checkpoint replays in place instead of
-    forking, so its tasks keep their ids and its saved answers could be reused."""
-
-    subgraph = (
-        StateGraph(State)
-        .add_node("a", lambda s: {"value": [f"a:{interrupt('a')}"]})
-        .add_node("b", lambda s: {"value": [f"b:{interrupt('b')}"]})
-        .add_edge(START, "a")
-        .add_edge(START, "b")
-        .compile(checkpointer=True)
-    )
-    graph = (
-        StateGraph(State)
-        .add_node("subgraph_node", subgraph)
-        .add_edge(START, "subgraph_node")
-        .compile(checkpointer=sync_checkpointer)
-    )
-    config = {"configurable": {"thread_id": "1"}}
-
-    def subgraph_head() -> RunnableConfig:
-        return graph.get_state(config, subgraphs=True).tasks[0].state.config
-
-    graph.invoke({"value": []}, config)
-    graph.update_state(subgraph_head(), {"value": ["u"]}, as_node="__start__")
-    result = graph.invoke(None, config)
-    question_a = next(i for i in result["__interrupt__"] if i.value == "a")
-    graph.invoke(Command(resume={question_a.id: "yes"}), config)
-
-    result = graph.invoke(None, subgraph_head())
-
-    assert sorted(i.value for i in result["__interrupt__"]) == ["a", "b"]
-
-
 def test_subgraph_replay_loads_accumulated_state_then_resume(
    sync_checkpointer: BaseCheckpointSaver,
 ) -> None:
@@ -13,17 +13,13 @@ from typing import Annotated, Any
 import pytest
 from langchain_core.messages import AIMessage
 from langchain_core.tools import tool
-from langgraph.checkpoint.memory import InMemorySaver
 from langgraph.prebuilt import ToolNode, ToolRuntime
 from typing_extensions import TypedDict

 from langgraph.constants import END, START
-from langgraph.errors import GraphDrained
 from langgraph.graph import StateGraph
 from langgraph.graph.message import add_messages
 from langgraph.pregel._tools import _tool_call_writer
-from langgraph.runtime import RunControl
-from langgraph.types import Command, interrupt


 class _State(TypedDict):
@@ -58,14 +54,14 @@ def _caller_async(tool_name: str, tool_args: dict[str, Any], tc_id: str = "tc1")
    return caller


-def _build_graph(caller, tools, checkpointer=None) -> Any:
+def _build_graph(caller, tools) -> Any:
    sg = StateGraph(_State)
    sg.add_node("caller", caller)
    sg.add_node("tools", ToolNode(tools))
    sg.add_edge(START, "caller")
    sg.add_edge("caller", "tools")
    sg.add_edge("tools", END)
-    return sg.compile(checkpointer=checkpointer)
+    return sg.compile()


 def _tool_events(stream) -> list[tuple[tuple[str, ...], dict]]:
@@ -150,105 +146,6 @@ class TestSyncGraphSyncTool:
        assert kinds == ["tool-started", "tool-error"]
        assert events[1][1]["message"] == "nope"

-    def test_interrupt_in_tool_is_not_a_tool_error(self) -> None:
-        @tool
-        def ask() -> str:
-            """asks."""
-            return interrupt("ok?")
-
-        graph = _build_graph(_caller_sync("ask", {}), [ask], InMemorySaver())
-        config = {"configurable": {"thread_id": "1"}}
-        paused = _tool_events(
-            graph.stream(
-                {"messages": []}, config, stream_mode=["tools"], subgraphs=True
-            )
-        )
-        resumed = _tool_events(
-            graph.stream(
-                Command(resume="yes"), config, stream_mode=["tools"], subgraphs=True
-            )
-        )
-
-        assert [p["event"] for _, p in paused] == ["tool-started"]
-        assert [(p["event"], p["tool_call_id"]) for _, p in resumed] == [
-            ("tool-started", "tc1"),
-            ("tool-finished", "tc1"),
-        ]
-
-    def test_tool_handing_off_to_the_parent_still_ends_its_call(self) -> None:
-        class State(TypedDict):
-            messages: Annotated[list, add_messages]
-            done: bool
-
-        def hand_off(state: State) -> Command:
-            return Command(graph=Command.PARENT, goto="finish", update={"done": True})
-
-        inner = StateGraph(State).add_node("hand_off", hand_off)
-        inner = inner.add_edge(START, "hand_off").compile()
-
-        @tool
-        def handoff() -> str:
-            """hands off."""
-            inner.invoke({"messages": [], "done": False})
-            return "unreachable"
-
-        graph = (
-            StateGraph(State)
-            .add_node("caller", _caller_sync("handoff", {}))
-            .add_node("tools", ToolNode([handoff]))
-            .add_node("finish", lambda state: {"done": True})
-            .add_edge(START, "caller")
-            .add_edge("caller", "tools")
-            .add_edge("tools", END)
-            .add_edge("finish", END)
-            .compile()
-        )
-        events = [
-            payload["event"]
-            for _, payload in _tool_events(
-                graph.stream(
-                    {"messages": [], "done": False},
-                    stream_mode=["tools"],
-                    subgraphs=True,
-                )
-            )
-        ]
-
-        assert events[0] == "tool-started"
-        assert events[-1] == "tool-error", events
-
-    def test_drained_tool_is_not_a_tool_error(self) -> None:
-        control = RunControl()
-
-        def request_drain(state: _State) -> dict:
-            control.request_drain()
-            return {}
-
-        inner = (
-            StateGraph(_State)
-            .add_node("request_drain", request_drain)
-            .add_node("after", lambda state: {})
-            .add_edge(START, "request_drain")
-            .add_edge("request_drain", "after")
-            .compile()
-        )
-
-        @tool
-        def drained() -> str:
-            """drains."""
-            inner.invoke({"messages": []}, control=control)
-            return "unreachable"
-
-        graph = _build_graph(_caller_sync("drained", {}), [drained])
-        chunks: list = []
-        with pytest.raises(GraphDrained):
-            for chunk in graph.stream(
-                {"messages": []}, stream_mode=["tools"], subgraphs=True
-            ):
-                chunks.append(chunk)
-
-        assert [p["event"] for _, p in _tool_events(chunks)] == ["tool-started"]
-
    def test_writer_unset_outside_tool(self) -> None:
        # Outside any tool body the ContextVar that ToolRuntime reads
        # is unset — emitting from there would be a no-op.
@@ -299,25 +196,6 @@ class TestAsyncGraphAsyncTool:
        assert kinds == ["tool-started", "tool-output-delta", "tool-finished"]
        assert events[1][1]["delta"] == "hi"

-    @pytest.mark.anyio
-    async def test_interrupt_in_async_tool_is_not_a_tool_error(self) -> None:
-        @tool
-        async def aask() -> str:
-            """asks."""
-            return interrupt("ok?")
-
-        graph = _build_graph(_caller_async("aask", {}), [aask], InMemorySaver())
-        config = {"configurable": {"thread_id": "1"}}
-        events = []
-        for graph_input in ({"messages": []}, Command(resume="yes")):
-            async for ns, mode, payload in graph.astream(
-                graph_input, config, stream_mode=["tools"], subgraphs=True
-            ):
-                if mode == "tools":
-                    events.append(payload["event"])
-
-        assert events == ["tool-started", "tool-started", "tool-finished"]
-

 class TestConcurrentToolCalls:
    def test_parallel_tool_calls_do_not_bleed(self) -> None:
@@ -1,24 +1,11 @@
 """End-to-end tests for `TracePolicy` input processing on node trace runs."""

-import asyncio
-from collections.abc import AsyncIterator, Iterator
 from typing import Any
-from uuid import UUID

 import pytest
-from langchain_core.callbacks import BaseCallbackHandler
-from langchain_core.language_models.fake_chat_models import FakeMessagesListChatModel
-from langchain_core.messages import AIMessage, HumanMessage
-from langchain_core.runnables import RunnableConfig
 from typing_extensions import TypedDict

-from langgraph._internal._runnable import (
-    ASYNCIO_ACCEPTS_CONTEXT,
-    RunnableCallable,
-    RunnableSeq,
-)
-from langgraph.graph import END, START, MessagesState, StateGraph
-from langgraph.graph.state import CompiledStateGraph
+from langgraph.graph import END, START, StateGraph
 from langgraph.types import TracePolicy
 from tests.fake_tracer import FakeTracer, Run

@@ -160,179 +147,3 @@ async def test_trace_policy_transforms_recorded_inputs_async() -> None:
    run = _node_run(tracer, "n")
    assert run.inputs == {"scrubbed_in": True}
    assert run.outputs == {"value": 6}
-
-
-_RECORDING_POLICY = TracePolicy(
-    process_inputs=lambda _: {"recorded": "inputs"},
-    process_outputs=lambda _: {"recorded": "outputs"},
-)
-
-
-def _chat_graph() -> CompiledStateGraph:
-    model = FakeMessagesListChatModel(
-        responses=[AIMessage("model reply", id="ai-model")]
-    )
-
-    def chat(state: MessagesState) -> dict[str, Any]:
-        reply = model.invoke(state["messages"])
-        return {
-            "messages": [
-                *state["messages"],
-                reply,
-                AIMessage("from node", id="ai-node"),
-            ]
-        }
-
-    return (
-        StateGraph(MessagesState)
-        .add_node("chat", chat, trace_policy=_RECORDING_POLICY)
-        .add_edge(START, "chat")
-        .compile()
-    )
-
-
-def _assert_scrubbed_node_run(tracer: FakeTracer, *, model_is_child: bool) -> None:
-    run = _node_run(tracer, "chat")
-    assert run.inputs == {"recorded": "inputs"}
-    assert run.outputs == {"recorded": "outputs"}
-    if model_is_child:
-        assert [c.name for c in run.child_runs] == ["FakeMessagesListChatModel"]
-
-
-def test_trace_policy_scrubs_tracer_not_messages_stream() -> None:
-    tracer = FakeTracer()
-    streamed = [
-        message.content
-        for message, _ in _chat_graph().stream(
-            {"messages": [HumanMessage("hello", id="h-1")]},
-            {"callbacks": [tracer]},
-            stream_mode="messages",
-        )
-    ]
-
-    assert streamed == ["model reply", "from node"]
-    _assert_scrubbed_node_run(tracer, model_is_child=True)
-
-
-@pytest.mark.anyio
-async def test_trace_policy_scrubs_tracer_not_messages_stream_async() -> None:
-    tracer = FakeTracer()
-    streamed = [
-        message.content
-        async for message, _ in _chat_graph().astream(
-            {"messages": [HumanMessage("hello", id="h-1")]},
-            {"callbacks": [tracer]},
-            stream_mode="messages",
-        )
-    ]
-
-    assert streamed == ["model reply", "from node"]
-    _assert_scrubbed_node_run(tracer, model_is_child=ASYNCIO_ACCEPTS_CONTEXT)
-
-
-@pytest.mark.anyio
-async def test_trace_policy_scrubs_tracer_not_astream_events() -> None:
-    tracer = FakeTracer()
-    chat_events = [
-        event
-        async for event in _chat_graph().astream_events(
-            {"messages": [HumanMessage("hello", id="h-1")]},
-            {"callbacks": [tracer]},
-            version="v2",
-        )
-        if event["name"] == "chat"
-        and event["event"] in ("on_chain_start", "on_chain_end")
-    ]
-
-    assert [e["event"] for e in chat_events] == ["on_chain_start", "on_chain_end"]
-    start, end = (e["data"] for e in chat_events)
-    assert [m.content for m in start["input"]["messages"]] == ["hello"]
-    assert [m.content for m in end["output"]["messages"]] == [
-        "hello",
-        "model reply",
-        "from node",
-    ]
-    _assert_scrubbed_node_run(tracer, model_is_child=ASYNCIO_ACCEPTS_CONTEXT)
-
-
-class _HandlerWithTapMethods(BaseCallbackHandler):
-    def __init__(self) -> None:
-        self.node_payloads: list[Any] = []
-        self.node_run_ids: set[UUID] = set()
-
-    def _record(self, run_id: UUID, payload: Any) -> None:
-        if run_id in self.node_run_ids:
-            self.node_payloads.append(payload)
-
-    def tap_output_iter(self, run_id: UUID, output: Iterator[Any]) -> Iterator[Any]:
-        for chunk in output:
-            self._record(run_id, chunk)
-            yield chunk
-
-    async def tap_output_aiter(
-        self, run_id: UUID, output: AsyncIterator[Any]
-    ) -> AsyncIterator[Any]:
-        async for chunk in output:
-            self._record(run_id, chunk)
-            yield chunk
-
-    def on_chain_start(
-        self, serialized: Any, inputs: Any, *, run_id: UUID, **kwargs: Any
-    ) -> None:
-        if kwargs.get("name") == "n":
-            self.node_run_ids.add(run_id)
-            self._record(run_id, inputs)
-
-    def on_chain_end(self, outputs: Any, *, run_id: UUID, **kwargs: Any) -> None:
-        self._record(run_id, outputs)
-
-
-@pytest.mark.anyio
-@pytest.mark.parametrize("via_events", [False, True], ids=["ainvoke", "astream_events"])
-async def test_trace_policy_reaches_tracers_but_not_custom_handlers(
-    via_events: bool,
-) -> None:
-    graph = (
-        StateGraph(State)
-        .add_node("n", _incr, trace_policy=_RECORDING_POLICY)
-        .add_edge(START, "n")
-        .add_edge("n", END)
-        .compile()
-    )
-    handler = _HandlerWithTapMethods()
-    tracer = FakeTracer()
-    config: RunnableConfig = {"callbacks": [handler, tracer]}
-
-    if via_events:
-        async for _ in graph.astream_events({"value": 1}, config, version="v2"):
-            pass
-    else:
-        assert await graph.ainvoke({"value": 1}, config) == {"value": 2}
-    assert handler.node_payloads == [{"value": 1}, {"value": 2}]
-    run = _node_run(tracer, "n")
-    assert (run.inputs, run.outputs) == (
-        {"recorded": "inputs"},
-        {"recorded": "outputs"},
-    )
-
-
-@pytest.mark.anyio
-async def test_trace_policy_cancel_at_node_end_still_closes_tracer_run() -> None:
-    def cancel_own_task(value: Any) -> Any:
-        asyncio.current_task().cancel()
-        return value
-
-    tracer = FakeTracer()
-    seq = RunnableSeq(
-        RunnableCallable(lambda x: x, trace=False),
-        RunnableCallable(cancel_own_task, trace=False),
-        trace_policy=_RECORDING_POLICY,
-    )
-    with pytest.raises(asyncio.CancelledError):
-        await asyncio.create_task(seq.ainvoke({}, {"callbacks": [tracer]}))
-    for _ in range(100):
-        if tracer.runs:
-            break
-        await asyncio.sleep(0.01)
-
-    assert [r.outputs for r in tracer.runs] == [{"recorded": "outputs"}]
@@ -1,6 +1,4 @@
-import copy
 import functools
-import pickle
 import sys
 import uuid
 from collections.abc import Callable
@@ -27,7 +25,6 @@ from pydantic import BaseModel, Field
 from typing_extensions import NotRequired, Required, TypedDict

 from langgraph._internal._config import (
-    DEFAULT_RECURSION_LIMIT,
    _is_not_empty,
    _merge_callbacks,
    ensure_config,
@@ -623,30 +620,6 @@ def test_merge_configs_merges_metadata_lc_versions() -> None:
    assert merged["metadata"]["lc_agent_name"] == "agent"


-@pytest.mark.parametrize(
-    "rebuild",
-    [
-        lambda config: config,
-        copy.deepcopy,
-        lambda config: pickle.loads(pickle.dumps(config)),
-    ],
-    ids=["as_is", "deepcopy", "pickle"],
-)
-def test_merge_configs_skips_the_injected_default_recursion_limit(
-    rebuild: Callable[[RunnableConfig], RunnableConfig],
-) -> None:
-    merged = merge_configs({"recursion_limit": 50}, rebuild(ensure_config()))
-    assert merged["recursion_limit"] == 50
-
-
-def test_merge_configs_applies_an_explicit_recursion_limit_equal_to_default() -> None:
-    explicit_default = int(DEFAULT_RECURSION_LIMIT)
-    merged = merge_configs(
-        {"recursion_limit": 50}, {"recursion_limit": explicit_default}
-    )
-    assert merged["recursion_limit"] == explicit_default
-
-
 def test_ensure_config_merges_metadata_lc_versions() -> None:
    a = {
        "metadata": {
@@ -799,15 +772,6 @@ def test_ensure_config_tags_concat_preserves_order_and_duplicates() -> None:
    assert merged["tags"] == ["shared", "alpha", "shared", "beta"]


-def test_ensure_config_skips_tags_inherited_from_ambient() -> None:
-    token = var_child_runnable_config.set({"tags": ["inherited"]})
-    try:
-        merged = ensure_config({"tags": ["inherited", "own"]})
-    finally:
-        var_child_runnable_config.reset(token)
-    assert merged["tags"] == ["inherited", "own"]
-
-
 def test_ensure_config_merges_callbacks_across_configs() -> None:
    a_cb = _TrackingCB("a")
    b_cb = _TrackingCB("b")
@@ -1,5 +1,5 @@
 version = 1
-revision = 5
+revision = 3
 requires-python = ">=3.10"
 resolution-markers = [
    "python_full_version >= '3.15'",
@@ -202,11 +202,11 @@ wheels = [

 [[package]]
 name = "certifi"
-version = "2026.10.19"
+version = "2026.1.4"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/a6/bd/1436c50cc46699de0230fbaacc1d1de7bfec413176099949e9d5112e88f2/certifi-2026.10.19.tar.gz", hash = "sha256:035c1e85572b141bf1c3a3eff0e33a8eb74917522f2559075ff8d2fea780a1ae", size = 137598, upload-time = "2026-10-20T02:24:16.604Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/e0/2d/a891ca51311197f6ad14a7ef42e2399f36cf2f9bd44752b3dc4eab60fdc5/certifi-2026.1.4.tar.gz", hash = "sha256:ac726dd470482006e014ad384921ed6438c457018f4b3d204aea4281258b2120", size = 154268, upload-time = "2026-01-04T02:42:41.825Z" }
 wheels = [
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+    { url = "https://files.pythonhosted.org/packages/e6/ad/3cc14f097111b4de0040c83a525973216457bbeeb63739ef1ed275c1c021/certifi-2026.1.4-py3-none-any.whl", hash = "sha256:9943707519e4add1115f44c2bc244f782c0249876bf51b6599fee1ffbedd685c", size = 152900, upload-time = "2026-01-04T02:42:40.15Z" },
 ]

 [[package]]
@@ -931,6 +931,18 @@ wheels = [
    { url = "https://files.pythonhosted.org/packages/d2/23/408243171aa9aaba178d3e2559159c24c1171a641aa83b67bdd3394ead8e/idna-3.15-py3-none-any.whl", hash = "sha256:048adeaf8c2d788c40fee287673ccaa74c24ffd8dcf09ffa555a2fbb59f10ac8", size = 72340, upload-time = "2026-05-12T22:45:55.733Z" },
 ]

+[[package]]
+name = "importlib-metadata"
+version = "8.7.1"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "zipp" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/f3/49/3b30cad09e7771a4982d9975a8cbf64f00d4a1ececb53297f1d9a7be1b10/importlib_metadata-8.7.1.tar.gz", hash = "sha256:49fef1ae6440c182052f407c8d34a68f72efc36db9ca90dc0113398f2fdde8bb", size = 57107, upload-time = "2025-12-21T10:00:19.278Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/fa/5e/f8e9a1d23b9c20a551a8a02ea3637b4642e22c2626e3a13a9a29cdea99eb/importlib_metadata-8.7.1-py3-none-any.whl", hash = "sha256:5a1f80bf1daa489495071efbb095d75a634cf28a8bc299581244063b53176151", size = 27865, upload-time = "2025-12-21T10:00:18.329Z" },
+]
+
 [[package]]
 name = "iniconfig"
 version = "2.3.0"
@@ -1439,7 +1451,7 @@ wheels = [

 [[package]]
 name = "langgraph"
-version = "1.2.20"
+version = "1.2.15"
 source = { editable = "." }
 dependencies = [
    { name = "langchain-core" },
@@ -1625,7 +1637,7 @@ wheels = [

 [[package]]
 name = "langgraph-checkpoint"
-version = "4.3.1"
+version = "4.3.0"
 source = { editable = "../checkpoint" }
 dependencies = [
    { name = "langchain-core" },
@@ -1673,7 +1685,7 @@ test = [

 [[package]]
 name = "langgraph-checkpoint-postgres"
-version = "3.2.0"
+version = "3.1.3"
 source = { editable = "../checkpoint-postgres" }
 dependencies = [
    { name = "langgraph-checkpoint" },
@@ -1722,7 +1734,7 @@ test = [

 [[package]]
 name = "langgraph-checkpoint-sqlite"
-version = "3.1.3"
+version = "3.1.2"
 source = { editable = "../checkpoint-sqlite" }
 dependencies = [
    { name = "aiosqlite" },
@@ -1823,7 +1835,7 @@ test = [

 [[package]]
 name = "langgraph-prebuilt"
-version = "1.1.1"
+version = "1.1.0"
 source = { editable = "../prebuilt" }
 dependencies = [
    { name = "langchain-core" },
@@ -1844,7 +1856,7 @@ dev = [
    { name = "langgraph-checkpoint", editable = "../checkpoint" },
    { name = "langgraph-checkpoint-postgres", editable = "../checkpoint-postgres" },
    { name = "langgraph-checkpoint-sqlite", editable = "../checkpoint-sqlite" },
-    { name = "psycopg", extras = ["binary"] },
+    { name = "psycopg-binary" },
    { name = "pytest" },
    { name = "pytest-asyncio" },
    { name = "pytest-mock" },
@@ -1864,7 +1876,7 @@ test = [
    { name = "langgraph-checkpoint", editable = "../checkpoint" },
    { name = "langgraph-checkpoint-postgres", editable = "../checkpoint-postgres" },
    { name = "langgraph-checkpoint-sqlite", editable = "../checkpoint-sqlite" },
-    { name = "psycopg", extras = ["binary"] },
+    { name = "psycopg-binary" },
    { name = "pytest" },
    { name = "pytest-asyncio" },
    { name = "pytest-mock" },
@@ -1907,7 +1919,7 @@ requires-dist = [
    { name = "langchain-core", specifier = ">=1.4.0,<2" },
    { name = "langchain-protocol", specifier = ">=0.0.15" },
    { name = "orjson", specifier = ">=3.11.5" },
-    { name = "websockets", specifier = ">=14" },
+    { name = "websockets", specifier = ">=14,<17" },
 ]

 [package.metadata.requires-dev]
@@ -2099,7 +2111,7 @@ wheels = [

 [[package]]
 name = "nbconvert"
-version = "7.17.2"
+version = "7.17.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
    { name = "beautifulsoup4" },
@@ -2117,9 +2129,9 @@ dependencies = [
    { name = "pygments" },
    { name = "traitlets" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/53/6a/252c7620305a9661205aed7a2a4b3592f5207bfca56ad11b7dea2c5ec2f6/nbconvert-7.17.2.tar.gz", hash = "sha256:344a218e8595117ce37396ed025d994f146d076226ebac59255a2fa085ab24d8", size = 865989, upload-time = "2026-10-12T09:11:19.583Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/01/b1/708e53fe2e429c103c6e6e159106bcf0357ac41aa4c28772bd8402339051/nbconvert-7.17.1.tar.gz", hash = "sha256:34d0d0a7e73ce3cbab6c5aae8f4f468797280b01fd8bd2ca746da8569eddd7d2", size = 865311, upload-time = "2026-04-08T00:44:14.914Z" }
 wheels = [
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+    { url = "https://files.pythonhosted.org/packages/67/f8/bb0a9d5f46819c821dc1f004aa2cc29b1d91453297dbf5ff20470f00f193/nbconvert-7.17.1-py3-none-any.whl", hash = "sha256:aa85c087b435e7bf1ffd03319f658e285f2b89eccab33bc1ba7025495ab3e7c8", size = 261927, upload-time = "2026-04-08T00:44:12.845Z" },
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 [[package]]
@@ -2177,114 +2189,84 @@ wheels = [

 [[package]]
 name = "opentelemetry-api"
-version = "1.45.1"
+version = "1.39.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
+    { name = "importlib-metadata" },
    { name = "typing-extensions" },
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-version = "0.66b1"
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 [[package]]
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 [[package]]
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 [[package]]
@@ -1,21 +1,6 @@
 # Changelog

-## 0.4.12
-
-### Removed
-
- **`PrioritySettings.fairness_weight`** — removed. The server stores only
-  `priority` and `fairness_group` on the thread; it ignores a
-  `fairness_weight` and logs a warning. Remove it from your callback.
-
-### Changed
-
- **`PrioritySettings.priority`** — now says -5 runs first and 5 runs last,
-  matching how the server orders runs. 0.4.9 to 0.4.11 said the reverse, and
-  their example gave premium users 3, which runs them after everyone at the
-  default 0. Check any callback written from those docs.
-
-## 0.4.11 and earlier
+## Unreleased

 ### Added

@@ -49,14 +34,6 @@
 - **`thread.output`** — awaitable that resolves to the terminal thread state
  `values` dict after the run lifecycle completes.

- **`Priority` (beta)** — register an async function with `@priority.assign`
-  and name the object in the `priority` section of `langgraph.json`. The
-  server calls the function with a `PriorityContext` at the first run on a
-  thread with no settings and stores the `PrioritySettings` it returns
-  (`priority`, `fairness_group`) on the thread. Requires
-  `langgraph-api` 0.18.0 or later and a `langgraph-cli` that supports the
-  section; older versions of either ignore it.
-
 ### Changed

 - `client.threads.stream()` now accepts `transport="sse"` (default) or
Author	SHA1	Message	Date
thushanth-bengre-langchain	7d8b4e4462	fix(langgraph): keep the recursion budget and skip Send tasks when applying inserted input	2026-10-13 10:37:09 -04:00
thushanth-bengre-langchain	467f3e0142	feat(langgraph): apply input inserted into a running run at declared safe steps	2026-10-13 10:37:09 -04:00