Simplify flat Dockerfile helpers

.github/workflows/_integration_test.yml

@@ -17,6 +17,9 @@ jobs:
         python-version:
           - "3.10"
           - "3.14"
+        build_mode:
+          - layered
+          - flat
         example:
           - name: A
             workdir: libs/cli/examples
@@ -30,9 +33,11 @@ jobs:
           - name: D
             workdir: libs/cli/examples/graphs_reqs_b
             tag: langgraph-test-d
-    name: "CLI integration test"
+    name: "CLI integration test (${{ matrix.python-version }}, ${{ matrix.example.name }}, ${{ matrix.build_mode }})"
     env:
+      BUILD_ARGS: ${{ matrix.build_mode == 'flat' && '--flat' || '' }}
       HAS_LANGSMITH_API_KEY: ${{ secrets.LANGSMITH_API_KEY != '' }}
+      TAG_SUFFIX: ${{ matrix.build_mode == 'flat' && '-flat' || '' }}
     defaults:
       run:
         working-directory: libs/cli
@@ -58,7 +63,7 @@ jobs:
         if: (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch')
         working-directory: ${{ matrix.example.workdir }}
         run: |
-          langgraph build -t ${{ matrix.example.tag }}
+          langgraph build $BUILD_ARGS -t ${{ matrix.example.tag }}$TAG_SUFFIX
       - name: Test service ${{ matrix.example.name }}
         if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') &&env.HAS_LANGSMITH_API_KEY == 'true' }}
         working-directory: ${{ matrix.example.workdir }}
@@ -71,98 +76,98 @@ jobs:
           if [ -f ../.env ]; then echo "LANGSMITH_API_KEY=${{ secrets.LANGSMITH_API_KEY }}" >> ../.env; fi
           # Run the integration test using the built tag
           REPO_ROOT=$(git rev-parse --show-toplevel)
-          timeout 60 python "$REPO_ROOT/.github/scripts/run_langgraph_cli_test.py" -t ${{ matrix.example.tag }}
+          timeout 60 python "$REPO_ROOT/.github/scripts/run_langgraph_cli_test.py" -t ${{ matrix.example.tag }}$TAG_SUFFIX
 
       - name: Build JS service
-        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') &&matrix.example.name == 'A' }}
+        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') && matrix.example.name == 'A' }}
         working-directory: libs/cli/js-examples
         run: |
-          langgraph build -t langgraph-test-e
+          langgraph build $BUILD_ARGS -t langgraph-test-e$TAG_SUFFIX
 
       - name: Build JS monorepo service
-        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') &&matrix.example.name == 'A' }}
+        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') && matrix.example.name == 'A' }}
         working-directory: libs/cli/js-monorepo-example
         run: |
-          langgraph build -t langgraph-test-f -c apps/agent/langgraph.json --build-command "yarn run turbo build" --install-command "yarn install"
+          langgraph build $BUILD_ARGS -t langgraph-test-f$TAG_SUFFIX -c apps/agent/langgraph.json --build-command "yarn run turbo build" --install-command "yarn install"
 
       - name: Build Python monorepo service
-        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') &&matrix.example.name == 'A' }}
+        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') && matrix.example.name == 'A' }}
         working-directory: libs/cli/python-monorepo-example
         run: |
-          langgraph build -t langgraph-test-g -c apps/agent/langgraph.json
+          langgraph build $BUILD_ARGS -t langgraph-test-g$TAG_SUFFIX -c apps/agent/langgraph.json
       - name: Test Python monorepo service
-        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') &&matrix.example.name == 'A' && env.HAS_LANGSMITH_API_KEY == 'true' }}
+        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') && matrix.example.name == 'A' && env.HAS_LANGSMITH_API_KEY == 'true' }}
         working-directory: libs/cli/python-monorepo-example
         env:
           LANGSMITH_API_KEY: ${{ secrets.LANGSMITH_API_KEY }}
         run: |
           cp apps/agent/.env.example apps/agent/.env
           echo "LANGSMITH_API_KEY=${{ secrets.LANGSMITH_API_KEY }}" >> apps/agent/.env
-          timeout 60 python ../../../.github/scripts/run_langgraph_cli_test.py -t langgraph-test-g -c apps/agent/langgraph.json
+          timeout 60 python ../../../.github/scripts/run_langgraph_cli_test.py -t langgraph-test-g$TAG_SUFFIX -c apps/agent/langgraph.json
 
       - name: Build prerelease reqs service
-        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') &&matrix.example.name == 'A' }}
+        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') && matrix.example.name == 'A' }}
         working-directory: libs/cli/examples/graph_prerelease_reqs
         run: |
-          langgraph build -t langgraph-test-h
+          langgraph build $BUILD_ARGS -t langgraph-test-h$TAG_SUFFIX
       - name: Test prerelease reqs service
-        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') &&matrix.example.name == 'A' && env.HAS_LANGSMITH_API_KEY == 'true' }}
+        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') && matrix.example.name == 'A' && env.HAS_LANGSMITH_API_KEY == 'true' }}
         working-directory: libs/cli/examples/graph_prerelease_reqs
         env:
           LANGSMITH_API_KEY: ${{ secrets.LANGSMITH_API_KEY }}
         run: |
           cp ../.env.example .env
           echo "LANGSMITH_API_KEY=${{ secrets.LANGSMITH_API_KEY }}" >> .env
-          timeout 60 python ../../../../.github/scripts/run_langgraph_cli_test.py -t langgraph-test-h
+          timeout 60 python ../../../../.github/scripts/run_langgraph_cli_test.py -t langgraph-test-h$TAG_SUFFIX
           echo "Finished starting up langgraph-test-h"
-          LANGGRAPH_VERSION=$(docker run --rm --entrypoint "" langgraph-test-h python -c "import sys; from importlib.metadata import version; v = version('langgraph'); print(v);")
+          LANGGRAPH_VERSION=$(docker run --rm --entrypoint "" langgraph-test-h$TAG_SUFFIX python -c "import sys; from importlib.metadata import version; v = version('langgraph'); print(v);")
           if [ "$LANGGRAPH_VERSION" != "1.1.5" ]; then
             echo "LANGGRAPH_VERSION != 1.1.5; $LANGGRAPH_VERSION"
             exit 1
           fi
-          LANGCHAIN_OPENAI_VERSION=$(docker run --rm --entrypoint "" langgraph-test-h python -c "import sys; from importlib.metadata import version; v = version('langchain-openai'); print(v);")
+          LANGCHAIN_OPENAI_VERSION=$(docker run --rm --entrypoint "" langgraph-test-h$TAG_SUFFIX python -c "import sys; from importlib.metadata import version; v = version('langchain-openai'); print(v);")
           if [ "$LANGCHAIN_OPENAI_VERSION" != "1.1.14" ]; then
             echo "LANGCHAIN_OPENAI_VERSION != 1.1.14; $LANGCHAIN_OPENAI_VERSION"
             exit 1
           fi
-          LANGCHAIN_ANTHROPIC_VERSION=$(docker run --rm --entrypoint "" langgraph-test-h python -c "import sys; from importlib.metadata import version; v = version('langchain-anthropic'); print(v);")
+          LANGCHAIN_ANTHROPIC_VERSION=$(docker run --rm --entrypoint "" langgraph-test-h$TAG_SUFFIX python -c "import sys; from importlib.metadata import version; v = version('langchain-anthropic'); print(v);")
           if [ "$LANGCHAIN_ANTHROPIC_VERSION" != "1.4.6" ]; then
             echo "LANGCHAIN_ANTHROPIC_VERSION != 1.4.6; $LANGCHAIN_ANTHROPIC_VERSION"
             exit 1
           fi
 
       - name: Build and test prerelease reqs fail service
-        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') &&matrix.example.name == 'A' }}
+        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') && matrix.example.name == 'A' }}
         working-directory: libs/cli/examples/graph_prerelease_reqs_fail
         run: |
-          langgraph build -t langgraph-test-i || [ $? -eq 1 ]
+          langgraph build $BUILD_ARGS -t langgraph-test-i$TAG_SUFFIX || [ $? -eq 1 ]
 
       - name: Build uv simple service
-        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') &&matrix.example.name == 'A' }}
+        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') && matrix.example.name == 'A' }}
         working-directory: libs/cli/uv-examples/simple
         run: |
-          langgraph build -t langgraph-test-uv-simple
+          langgraph build $BUILD_ARGS -t langgraph-test-uv-simple$TAG_SUFFIX
       - name: Test uv simple service
-        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') &&matrix.example.name == 'A' && env.HAS_LANGSMITH_API_KEY == 'true' }}
+        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') && matrix.example.name == 'A' && env.HAS_LANGSMITH_API_KEY == 'true' }}
         working-directory: libs/cli/uv-examples/simple
         env:
           LANGSMITH_API_KEY: ${{ secrets.LANGSMITH_API_KEY }}
         run: |
           cp .env.example .env
           echo "LANGSMITH_API_KEY=${{ secrets.LANGSMITH_API_KEY }}" >> .env
-          timeout 60 python ../../../../.github/scripts/run_langgraph_cli_test.py -t langgraph-test-uv-simple
+          timeout 60 python ../../../../.github/scripts/run_langgraph_cli_test.py -t langgraph-test-uv-simple$TAG_SUFFIX
 
       - name: Build uv monorepo service
-        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') &&matrix.example.name == 'A' }}
+        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') && matrix.example.name == 'A' }}
         working-directory: libs/cli/uv-examples/monorepo/apps/agent
         run: |
-          langgraph build -t langgraph-test-uv-monorepo
+          langgraph build $BUILD_ARGS -t langgraph-test-uv-monorepo$TAG_SUFFIX
       - name: Test uv monorepo service
-        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') &&matrix.example.name == 'A' && env.HAS_LANGSMITH_API_KEY == 'true' }}
+        if: ${{ (steps.changed-files.outputs.all || github.event_name == 'workflow_dispatch') && matrix.example.name == 'A' && env.HAS_LANGSMITH_API_KEY == 'true' }}
         working-directory: libs/cli/uv-examples/monorepo/apps/agent
         env:
           LANGSMITH_API_KEY: ${{ secrets.LANGSMITH_API_KEY }}
         run: |
           cp .env.example .env
           echo "LANGSMITH_API_KEY=${{ secrets.LANGSMITH_API_KEY }}" >> .env
-          timeout 60 python ../../../../../../.github/scripts/run_langgraph_cli_test.py -t langgraph-test-uv-monorepo
+          timeout 60 python ../../../../../../.github/scripts/run_langgraph_cli_test.py -t langgraph-test-uv-monorepo$TAG_SUFFIX

libs/checkpoint-postgres/langgraph/store/postgres/base.py

@@ -7,7 +7,7 @@ import logging
 import re
 import threading
 from collections import defaultdict
-from collections.abc import Callable, Iterable, Iterator, Mapping, Sequence
+from collections.abc import Callable, Iterable, Iterator, Sequence
 from contextlib import contextmanager
 from datetime import datetime
 from typing import (
@@ -354,7 +354,7 @@ class BasePostgresStore(Generic[C]):
                     (
                         _namespace_to_text(op.namespace),
                         op.key,
-                        Jsonb(dict(cast(Mapping[str, Any], op.value))),
+                        Jsonb(cast(dict, op.value)),
                     )
                 )
                 if op.ttl is not None:

libs/checkpoint-sqlite/langgraph/store/sqlite/base.py

@@ -7,7 +7,7 @@ import re
 import sqlite3
 import threading
 from collections import defaultdict
-from collections.abc import Callable, Iterable, Iterator, Mapping, Sequence
+from collections.abc import Callable, Iterable, Iterator, Sequence
 from contextlib import contextmanager
 from typing import Any, Literal, NamedTuple, cast
 
@@ -387,7 +387,7 @@ class BaseSqliteStore:
                     [
                         _namespace_to_text(op.namespace),
                         op.key,
-                        orjson.dumps(dict(cast(Mapping[str, Any], op.value))),
+                        orjson.dumps(cast(dict, op.value)),
                         expires_at,
                         op.ttl,
                     ]

libs/checkpoint/langgraph/store/base/__init__.py

@@ -12,7 +12,7 @@ Core types:
 from __future__ import annotations
 
 from abc import ABC, abstractmethod
-from collections.abc import Iterable, Mapping
+from collections.abc import Iterable
 from datetime import datetime
 from typing import (
     Any,
@@ -473,10 +473,10 @@ class PutOp(NamedTuple):
         the full path would effectively be `"documents/user123/report1"`
     """
 
-    value: Mapping[str, Any] | None
+    value: dict[str, Any] | None
     """The data to store, or `None` to mark the item for deletion.
 
-    The value must be a mapping with string keys and JSON-serializable values.
+    The value must be a dictionary with string keys and JSON-serializable values.
     Setting this to `None` signals that the item should be deleted.
 
     Example:
@@ -857,7 +857,7 @@ class BaseStore(ABC):
         self,
         namespace: tuple[str, ...],
         key: str,
-        value: Mapping[str, Any],
+        value: dict[str, Any],
         index: Literal[False] | list[str] | None = None,
         *,
         ttl: float | None | NotProvided = NOT_PROVIDED,
@@ -869,7 +869,7 @@ class BaseStore(ABC):
                 Example: `("documents", "user123")`
             key: Unique identifier within the namespace. Together with namespace forms
                 the complete path to the item.
-            value: Mapping containing the item's data. Must contain string keys
+            value: Dictionary containing the item's data. Must contain string keys
                 and JSON-serializable values.
             index: Controls how the item's fields are indexed for search:
 
@@ -1110,7 +1110,7 @@ class BaseStore(ABC):
         self,
         namespace: tuple[str, ...],
         key: str,
-        value: Mapping[str, Any],
+        value: dict[str, Any],
         index: Literal[False] | list[str] | None = None,
         *,
         ttl: float | None | NotProvided = NOT_PROVIDED,
@@ -1122,7 +1122,7 @@ class BaseStore(ABC):
                 Example: `("documents", "user123")`
             key: Unique identifier within the namespace. Together with namespace forms
                 the complete path to the item.
-            value: Mapping containing the item's data. Must contain string keys
+            value: Dictionary containing the item's data. Must contain string keys
                 and JSON-serializable values.
             index: Controls how the item's fields are indexed for search:
 

libs/checkpoint/langgraph/store/base/batch.py

@@ -5,7 +5,7 @@ from __future__ import annotations
 import asyncio
 import functools
 import weakref
-from collections.abc import Callable, Iterable, Mapping
+from collections.abc import Callable, Iterable
 from typing import Any, Literal, TypeVar
 
 from langgraph.store.base import (
@@ -132,7 +132,7 @@ class AsyncBatchedBaseStore(BaseStore):
         self,
         namespace: tuple[str, ...],
         key: str,
-        value: Mapping[str, Any],
+        value: dict[str, Any],
         index: Literal[False] | list[str] | None = None,
         *,
         ttl: float | None | NotProvided = NOT_PROVIDED,
@@ -231,7 +231,7 @@ class AsyncBatchedBaseStore(BaseStore):
         self,
         namespace: tuple[str, ...],
         key: str,
-        value: Mapping[str, Any],
+        value: dict[str, Any],
         index: Literal[False] | list[str] | None = None,
         *,
         ttl: float | None | NotProvided = NOT_PROVIDED,

libs/checkpoint/langgraph/store/base/embed.py

@@ -11,7 +11,7 @@ from __future__ import annotations
 import asyncio
 import functools
 import json
-from collections.abc import Awaitable, Callable, Mapping, Sequence
+from collections.abc import Awaitable, Callable, Sequence
 from typing import Any
 
 from langchain_core.embeddings import Embeddings
@@ -244,9 +244,6 @@ def get_text_at_path(obj: Any, path: str | list[str]) -> list[str]:
         - Multi-field selection: "{field1,field2}"
         - Nested paths in multi-field: "{field1,nested.field2}"
     """
-    if isinstance(obj, Mapping) and not isinstance(obj, dict):
-        obj = dict(obj)
-
     if not path or path == "$":
         return [json.dumps(obj, sort_keys=True, ensure_ascii=False)]
 

libs/checkpoint/langgraph/store/memory/__init__.py

@@ -408,7 +408,7 @@ class InMemoryStore(BaseStore):
                 self._vectors[namespace].pop(key, None)
             else:
                 self._data[namespace][key] = Item(
-                    value=dict(op.value),
+                    value=op.value,
                     key=key,
                     namespace=namespace,
                     created_at=datetime.now(timezone.utc),

libs/checkpoint/tests/test_store.py

@@ -1,9 +1,7 @@
 import asyncio
 import json
-from collections import UserDict
-from collections.abc import Iterable, Mapping
+from collections.abc import Iterable
 from datetime import datetime
-from types import MappingProxyType
 from typing import Any
 
 import pytest
@@ -139,18 +137,6 @@ def test_get_text_at_path() -> None:
     assert get_text_at_path(nested_data, "nested[{invalid}]") == []
 
 
-@pytest.mark.parametrize(
-    "mapping",
-    [
-        UserDict({"text": "searchable"}),
-        MappingProxyType({"text": "searchable"}),
-    ],
-)
-def test_get_text_at_path_with_non_dict_mapping(mapping: Mapping[str, str]) -> None:
-    assert get_text_at_path(mapping, "$") == ['{"text": "searchable"}']
-    assert get_text_at_path(mapping, "text") == ["searchable"]
-
-
 async def test_async_batch_store(mocker: MockerFixture) -> None:
     abatch = mocker.stub()
 

libs/cli/langgraph_cli/cli.py

@@ -408,6 +408,12 @@ For production use, requires a license key in env var LANGGRAPH_CLOUD_LICENSE_KE
     "--build-command",
     help="Custom build command to run from the langgraph.json directory. If not provided, uses default build process.",
 )
+@click.option(
+    "--flat",
+    is_flag=True,
+    envvar="LANGGRAPH_CLI_FLAT_IMAGES",
+    help="Flatten generated build steps into one image layer when supported.",
+)
 @click.argument("docker_build_args", nargs=-1, type=click.UNPROCESSED)
 @cli.command(
     help="📦 Build LangGraph API server Docker image.",
@@ -426,6 +432,7 @@ def build(
     tag: str,
     install_command: str | None,
     build_command: str | None,
+    flat: bool,
 ):
     if install_command and langgraph_cli.config.has_disallowed_build_command_content(
         install_command
@@ -461,6 +468,7 @@ def build(
             docker_build_args,
             install_command,
             build_command,
+            flat=flat,
         )
 
 

libs/cli/langgraph_cli/config.py

@@ -1162,6 +1162,208 @@ def _build_runtime_env_vars(config: Config) -> list[str]:
     return env_vars
 
 
+def _faux_package_pyproject_command(package_name: str) -> str:
+    pyproject_path = shlex.quote(f"/deps/outer-{package_name}/pyproject.toml")
+    return f"""cat > {pyproject_path} <<'PYPROJECT'
+[project]
+name = {json.dumps(package_name)}
+version = "0.1"
+[tool.setuptools.package-data]
+"*" = ["**/*"]
+[build-system]
+requires = ["setuptools>=61"]
+build-backend = "setuptools.build_meta"
+PYPROJECT"""
+
+
+_FLAT_BUILD_CONTEXT = pathlib.PurePosixPath("/__build_context")
+_FLAT_ADDITIONAL_CONTEXTS = pathlib.PurePosixPath("/__additional_contexts")
+_DEFAULT_NODE_BUILD_COMMAND = (
+    '(test ! -f /api/langgraph_api/js/build.mts && echo "Prebuild script not found, '
+    'skipping") || tsx /api/langgraph_api/js/build.mts'
+)
+
+
+def _render_flat_dockerfile(
+    *,
+    image: str,
+    dockerfile_lines: list[str],
+    env_vars: list[str],
+    commands: list[str],
+    workdir: str | None,
+    additional_context_names: dict[pathlib.Path, str] | None = None,
+) -> str:
+    mounts = [f"--mount=type=bind,target={_FLAT_BUILD_CONTEXT},readonly"]
+    mounts.extend(
+        f"--mount=type=bind,from={name},"
+        f"target={_FLAT_ADDITIONAL_CONTEXTS / name},readonly"
+        for name in (additional_context_names or {}).values()
+    )
+
+    return os.linesep.join(
+        [
+            "# syntax=docker/dockerfile:1.7",
+            f"FROM {image}",
+            *dockerfile_lines,
+            *env_vars,
+            f"RUN {' '.join(mounts)} <<'USER_LAYER'",
+            *commands,
+            "USER_LAYER",
+            f"WORKDIR {workdir}" if workdir else "",
+        ]
+    )
+
+
+def _flat_context_source(
+    path: pathlib.Path,
+    relative_path: str,
+    additional_context_names: dict[pathlib.Path, str],
+    *,
+    additional_relative_path: str = ".",
+) -> str:
+    if name := additional_context_names.get(path):
+        return str(_FLAT_ADDITIONAL_CONTEXTS / name / additional_relative_path)
+    return str(_FLAT_BUILD_CONTEXT / relative_path)
+
+
+def _copy_directory_command(source: str, destination: str) -> str:
+    return f"""mkdir -p {shlex.quote(destination)}
+cp -a {shlex.quote(f"{source}/.")} {shlex.quote(destination)}/"""
+
+
+def _flat_local_dependency_commands(
+    *,
+    config_path: pathlib.Path,
+    local_deps: LocalDeps,
+    local_reqs_pip_install: str,
+    additional_context_names: dict[pathlib.Path, str],
+) -> list[str]:
+    commands = []
+
+    for reqpath, destination in local_deps.pip_reqs:
+        source = _flat_context_source(
+            reqpath.parent,
+            str(reqpath.relative_to(config_path.parent)),
+            additional_context_names,
+            additional_relative_path=reqpath.name,
+        )
+        destination_parent = pathlib.PurePosixPath(destination).parent
+        commands.append(f"""mkdir -p {shlex.quote(str(destination_parent))}
+cp {shlex.quote(source)} {shlex.quote(destination)}""")
+    if local_deps.pip_reqs:
+        requirements = " ".join(
+            f"-r {destination}" for _, destination in local_deps.pip_reqs
+        )
+        commands.append(f"{local_reqs_pip_install} {requirements}")
+
+    for full_path, (relative_path, name) in local_deps.real_pkgs.items():
+        source = _flat_context_source(
+            full_path, relative_path, additional_context_names
+        )
+        commands.append(_copy_directory_command(source, f"/deps/{name}"))
+
+    for full_path, (relative_path, destination) in local_deps.faux_pkgs.items():
+        source = _flat_context_source(
+            full_path, relative_path, additional_context_names
+        )
+        pyproject = _faux_package_pyproject_command(full_path.name)
+        commands.append(f"{_copy_directory_command(source, destination)}\n{pyproject}")
+
+    return commands
+
+
+def _build_flat_python_commands(
+    *,
+    config_path: pathlib.Path,
+    config: Config,
+    local_deps: LocalDeps,
+    pypi_deps: list[str],
+    local_reqs_pip_install: str,
+    local_deps_install_command: str,
+    pip_cleanup: str,
+    additional_context_names: dict[pathlib.Path, str],
+    js_working_dir: str | None,
+) -> list[str]:
+    commands = ["set -eu"]
+
+    if js_working_dir:
+        commands.append("/storage/install-node.sh")
+
+    if pip_config_file := config.get("pip_config_file"):
+        source = shlex.quote(str(_FLAT_BUILD_CONTEXT / pip_config_file))
+        commands.append(f"cp {source} /pipconfig.txt")
+    if pypi_deps:
+        commands.append(f"{local_reqs_pip_install} {' '.join(pypi_deps)}")
+
+    commands.extend(
+        _flat_local_dependency_commands(
+            config_path=config_path,
+            local_deps=local_deps,
+            local_reqs_pip_install=local_reqs_pip_install,
+            additional_context_names=additional_context_names,
+        )
+    )
+
+    commands.append(local_deps_install_command)
+    if js_working_dir:
+        working_dir = shlex.quote(js_working_dir)
+        commands.append(
+            f"cd {working_dir}\n"
+            f"{_get_node_pm_install_cmd(config_path.parent)} "
+            "&& tsx /api/langgraph_api/js/build.mts"
+        )
+    commands.extend(
+        line.removeprefix("RUN ")
+        for line in pip_cleanup.splitlines()
+        if line and not line.startswith("#")
+    )
+    return commands
+
+
+def _build_flat_python_dockerfile(
+    config_path: pathlib.Path,
+    config: Config,
+    local_deps: LocalDeps,
+    pypi_deps: list[str],
+    local_reqs_pip_install: str,
+    local_deps_install_command: str,
+    pip_cleanup: str,
+    image: str,
+    env_vars: list[str],
+    additional_context_names: dict[pathlib.Path, str],
+) -> str:
+    js_working_dir = (
+        local_deps.working_dir
+        if config.get("ui") or config.get("node_version")
+        else None
+    )
+    commands = _build_flat_python_commands(
+        config_path=config_path,
+        config=config,
+        local_deps=local_deps,
+        pypi_deps=pypi_deps,
+        local_reqs_pip_install=local_reqs_pip_install,
+        local_deps_install_command=local_deps_install_command,
+        pip_cleanup=pip_cleanup,
+        additional_context_names=additional_context_names,
+        js_working_dir=js_working_dir,
+    )
+    if js_working_dir:
+        env_vars = [
+            f"ENV NODE_VERSION={config.get('node_version') or DEFAULT_NODE_VERSION}",
+            *env_vars,
+        ]
+
+    return _render_flat_dockerfile(
+        image=image,
+        dockerfile_lines=config["dockerfile_lines"],
+        env_vars=env_vars,
+        commands=commands,
+        workdir=local_deps.working_dir,
+        additional_context_names=additional_context_names,
+    )
+
+
 def _get_node_pm_install_cmd(project_dir: pathlib.Path) -> str:
     def test_file(file_name):
         full_path = project_dir / file_name
@@ -1267,6 +1469,7 @@ def python_config_to_docker(
     api_version: str | None = None,
     *,
     escape_variables: bool = False,
+    flat: bool = False,
 ) -> tuple[str, dict[str, str]]:
     """Generate a Dockerfile from the configuration."""
     source_kind = _get_source_kind(config)
@@ -1428,6 +1631,36 @@ ADD {relpath} /deps/{name}
             ]
         )
     image_str = docker_tag(config, base_image, api_version)
+    dep_vname = "$$dep" if escape_variables else "$dep"
+    local_deps_install_command = f"""for dep in /deps/*; do \
+            echo "Installing {dep_vname}"; \
+            if [ -d "{dep_vname}" ]; then \
+                echo "Installing {dep_vname}"; \
+                (cd "{dep_vname}" && {global_reqs_pip_install} -e .); \
+            fi; \
+        done"""
+    pip_cleanup = _get_pip_cleanup_lines(
+        install_cmd=install_cmd,
+        to_uninstall=build_tools_to_uninstall,
+        pip_installer=pip_installer,
+    )
+
+    if flat:
+        return (
+            _build_flat_python_dockerfile(
+                config_path=config_path,
+                config=config,
+                local_deps=local_deps,
+                pypi_deps=pypi_deps,
+                local_reqs_pip_install=local_reqs_pip_install,
+                local_deps_install_command=local_deps_install_command,
+                pip_cleanup=pip_cleanup,
+                image=image_str,
+                env_vars=env_vars,
+                additional_context_names=additional_context_names,
+            ),
+            additional_contexts,
+        )
 
     # Prepare docker file contents
     docker_file_contents = []
@@ -1442,14 +1675,6 @@ ADD {relpath} /deps/{name}
         )
 
     # Add main dockerfile content
-    dep_vname = "$$dep" if escape_variables else "$dep"
-    local_deps_install_str = f"""RUN for dep in /deps/*; do \
-            echo "Installing {dep_vname}"; \
-            if [ -d "{dep_vname}" ]; then \
-                echo "Installing {dep_vname}"; \
-                (cd "{dep_vname}" && {global_reqs_pip_install} -e .); \
-            fi; \
-        done"""
     docker_file_contents.extend(
         [
             f"FROM {image_str}",
@@ -1459,18 +1684,14 @@ ADD {relpath} /deps/{name}
             installs,
             "",
             "# -- Installing all local dependencies --",
-            local_deps_install_str,
+            f"RUN {local_deps_install_command}",
             "# -- End of local dependencies install --",
             os.linesep.join(env_vars),
             "",
             js_inst_str,
             "",
             # Add pip cleanup after all installations are complete
-            _get_pip_cleanup_lines(
-                install_cmd=install_cmd,
-                to_uninstall=build_tools_to_uninstall,
-                pip_installer=pip_installer,
-            ),
+            pip_cleanup,
             "",
             f"WORKDIR {local_deps.working_dir}" if local_deps.working_dir else "",
         ]
@@ -1479,6 +1700,31 @@ ADD {relpath} /deps/{name}
     return os.linesep.join(docker_file_contents), additional_contexts
 
 
+def _build_flat_node_dockerfile(
+    *,
+    config: Config,
+    image: str,
+    env_vars: list[str],
+    install_workdir: str,
+    build_workdir: str,
+    install_command: str,
+    build_command: str,
+) -> str:
+    commands = [
+        "set -eu",
+        _copy_directory_command(str(_FLAT_BUILD_CONTEXT), install_workdir),
+        f"cd {shlex.quote(install_workdir)}\n{install_command}",
+        f"cd {shlex.quote(build_workdir)}\n{build_command}",
+    ]
+    return _render_flat_dockerfile(
+        image=image,
+        dockerfile_lines=config["dockerfile_lines"],
+        env_vars=env_vars,
+        commands=commands,
+        workdir=build_workdir,
+    )
+
+
 def node_config_to_docker(
     config_path: pathlib.Path,
     config: Config,
@@ -1487,6 +1733,7 @@ def node_config_to_docker(
     install_command: str | None = None,
     build_command: str | None = None,
     build_context: str | None = None,
+    flat: bool = False,
 ) -> tuple[str, dict[str, str]]:
     # Calculate paths for monorepo support
     install_root = (
@@ -1496,56 +1743,56 @@ def node_config_to_docker(
     if build_context:
         relative_workdir = _calculate_relative_workdir(config_path, build_context)
         container_name = pathlib.Path(build_context).name
-        if relative_workdir:
-            faux_path = f"/deps/{container_name}/{relative_workdir}"
-        else:
-            faux_path = f"/deps/{container_name}"
+        install_workdir = f"/deps/{container_name}"
+        build_workdir = (
+            f"{install_workdir}/{relative_workdir}"
+            if relative_workdir
+            else install_workdir
+        )
     else:
         # Backward compatibility: use the original behavior
-        faux_path = f"/deps/{config_path.parent.name}"
+        install_workdir = build_workdir = f"/deps/{config_path.parent.name}"
 
     image_str = docker_tag(config, base_image, api_version)
 
     env_vars = _build_runtime_env_vars(config)
 
-    # For monorepo support, we need to handle install and build commands differently
-    if build_context:
-        # Monorepo case: install from root, build from config directory
-        container_root = f"/deps/{pathlib.Path(build_context).name}"
-        install_workdir = container_root
-        install_step = f"RUN {install_cmd}"
+    build_cmd = (
+        build_command
+        if build_context and build_command
+        else _DEFAULT_NODE_BUILD_COMMAND
+    )
 
-        if build_command:
-            build_step = f"RUN {build_command}"
-        else:
-            build_step = 'RUN (test ! -f /api/langgraph_api/js/build.mts && echo "Prebuild script not found, skipping") || tsx /api/langgraph_api/js/build.mts'
-    else:
-        # Original behavior: everything happens in the same directory
-        install_workdir = faux_path
-        install_step = f"RUN {install_cmd}"
-        build_step = 'RUN (test ! -f /api/langgraph_api/js/build.mts && echo "Prebuild script not found, skipping") || tsx /api/langgraph_api/js/build.mts'
-
-    if build_context:
-        build_workdir = faux_path
-    else:
-        build_workdir = faux_path
+    if flat:
+        return (
+            _build_flat_node_dockerfile(
+                config=config,
+                image=image_str,
+                env_vars=env_vars,
+                install_workdir=install_workdir,
+                build_workdir=build_workdir,
+                install_command=install_cmd,
+                build_command=build_cmd,
+            ),
+            {},
+        )
 
     docker_file_contents = [
         f"FROM {image_str}",
         "",
         os.linesep.join(config["dockerfile_lines"]),
         "",
-        f"ADD . {faux_path if not build_context else container_root}",
+        f"ADD . {install_workdir}",
         "",
         f"WORKDIR {install_workdir}",
         "",
-        install_step,
+        f"RUN {install_cmd}",
         "",
         os.linesep.join(env_vars),
         "",
         f"WORKDIR {build_workdir}",
         "",
-        build_step,
+        f"RUN {build_cmd}",
     ]
 
     return os.linesep.join(docker_file_contents), {}
@@ -1625,6 +1872,7 @@ def config_to_docker(
     build_command: str | None = None,
     build_context: str | None = None,
     escape_variables: bool = False,
+    flat: bool = False,
 ) -> tuple[str, dict[str, str]]:
     base_image = base_image or default_base_image(config)
 
@@ -1637,6 +1885,7 @@ def config_to_docker(
             install_command=install_command,
             build_command=build_command,
             build_context=build_context,
+            flat=flat,
         )
 
     return python_config_to_docker(
@@ -1645,6 +1894,7 @@ def config_to_docker(
         base_image=base_image,
         api_version=api_version,
         escape_variables=escape_variables,
+        flat=flat,
     )
 
 

libs/cli/langgraph_cli/docker.py

@@ -345,6 +345,7 @@ def build_docker_image(
     docker_command: Sequence[str] | None = None,
     extra_flags: Sequence[str] = (),
     verbose: bool = True,
+    flat: bool = False,
 ):
     """Build a Docker image from a LangGraph config."""
     # pull latest images
@@ -387,6 +388,7 @@ def build_docker_image(
         install_command=install_command,
         build_command=build_command,
         build_context=build_context,
+        flat=flat,
     )
     # add additional_contexts
     if additional_contexts:

libs/cli/tests/unit_tests/test_config.py

@@ -723,6 +723,67 @@ WORKDIR /deps/outer-unit_tests/unit_tests\
     }
 
 
+def test_config_to_docker_flat():
+    dockerfile, additional_contexts = config_to_docker(
+        PATH_TO_CONFIG,
+        validate_config(
+            {"dependencies": ["."], "graphs": {"agent": "./agent.py:graph"}}
+        ),
+        base_image="langchain/langgraph-api",
+        flat=True,
+    )
+
+    assert additional_contexts == {}
+    assert dockerfile.count("\nRUN ") == 1
+    assert "--mount=type=bind" in dockerfile
+    assert "cp -a /__build_context/. /deps/outer-unit_tests/unit_tests/" in dockerfile
+    assert "cat > /deps/outer-unit_tests/pyproject.toml <<'PYPROJECT'" in dockerfile
+    assert '[tool.setuptools.package-data]\n"*" = ["**/*"]' in dockerfile
+    assert dockerfile.endswith("WORKDIR /deps/outer-unit_tests/unit_tests")
+
+
+def test_config_to_docker_flat_with_custom_lines_and_escaped_variables():
+    dockerfile, _ = config_to_docker(
+        PATH_TO_CONFIG,
+        validate_config(
+            {
+                "dependencies": ["."],
+                "graphs": {"agent": "./agent.py:graph"},
+                "dockerfile_lines": ["RUN echo custom"],
+            }
+        ),
+        base_image="langchain/langgraph-api",
+        escape_variables=True,
+        flat=True,
+    )
+
+    assert dockerfile.index("RUN echo custom") < dockerfile.index("USER_LAYER")
+    assert 'echo "Installing $$dep"' in dockerfile
+
+
+def test_config_to_docker_flat_with_additional_context():
+    dockerfile, additional_contexts = config_to_docker(
+        PATH_TO_CONFIG,
+        validate_config(
+            {"dependencies": [".", ".."], "graphs": {"agent": "./agent.py:graph"}}
+        ),
+        base_image="langchain/langgraph-api",
+        flat=True,
+    )
+
+    assert additional_contexts == {
+        "outer-tests": str(pathlib.Path(__file__).parent.parent.absolute()),
+    }
+    assert (
+        "--mount=type=bind,from=outer-tests,"
+        "target=/__additional_contexts/outer-tests,readonly" in dockerfile
+    )
+    assert (
+        "cp -a /__additional_contexts/outer-tests/. /deps/outer-tests/tests/"
+        in dockerfile
+    )
+
+
 def test_config_to_docker_outside_path():
     graphs = {"agent": "./agent.py:graph"}
     actual_docker_stdin, additional_contexts = config_to_docker(
@@ -998,6 +1059,28 @@ RUN (test ! -f /api/langgraph_api/js/build.mts && echo "Prebuild script not foun
     assert additional_contexts == {}
 
 
+def test_config_to_docker_nodejs_flat():
+    dockerfile, additional_contexts = config_to_docker(
+        PATH_TO_CONFIG,
+        validate_config(
+            {
+                "node_version": "20",
+                "graphs": {"agent": "./graphs/agent.js:graph"},
+                "dockerfile_lines": ["RUN echo custom"],
+            }
+        ),
+        base_image="langchain/langgraphjs-api",
+        flat=True,
+    )
+
+    assert additional_contexts == {}
+    assert dockerfile.index("RUN echo custom") < dockerfile.index("USER_LAYER")
+    assert "cp -a /__build_context/. /deps/unit_tests/" in dockerfile
+    assert "cd /deps/unit_tests\nnpm i" in dockerfile
+    assert "tsx /api/langgraph_api/js/build.mts" in dockerfile
+    assert dockerfile.endswith("WORKDIR /deps/unit_tests")
+
+
 def test_config_to_docker_python_encryption():
     # Test that encryption config is included in validation
     graphs = {"agent": "./agent.py:graph"}
@@ -1214,6 +1297,29 @@ WORKDIR /deps/outer-unit_tests/unit_tests"""
     assert additional_contexts == {}
 
 
+def test_config_to_docker_gen_ui_python_flat():
+    dockerfile, additional_contexts = config_to_docker(
+        PATH_TO_CONFIG,
+        validate_config(
+            {
+                "dependencies": ["."],
+                "graphs": {"agent": "./agent.py:graph"},
+                "ui": {"agent": "./graphs/agent.ui.jsx"},
+            }
+        ),
+        base_image="langchain/langgraph-api",
+        flat=True,
+    )
+
+    assert additional_contexts == {}
+    assert dockerfile.count("\nRUN ") == 1
+    assert dockerfile.index("ENV NODE_VERSION=20") < dockerfile.index("\nRUN ")
+    assert dockerfile.index("ENV LANGGRAPH_UI=") < dockerfile.index("\nRUN ")
+    assert "/storage/install-node.sh" in dockerfile
+    assert "cd /deps/outer-unit_tests/unit_tests\nnpm i" in dockerfile
+    assert "tsx /api/langgraph_api/js/build.mts" in dockerfile
+
+
 def test_config_to_docker_multiplatform():
     graphs = {
         "python": "./multiplatform/python.py:graph",

libs/sdk-py/CHANGELOG.md

@@ -39,15 +39,6 @@
 - `client.threads.stream()` now accepts `transport="sse"` (default) or
   `transport="websocket"` in place of the previous transport-agnostic default.
 
-### Fixed
-
-- Resource-scoped auth decorators now honor `actions=` and reject empty or
-  invalid action lists. Because unmatched custom-auth paths remain allowed,
-  deployments using action-scoped handlers should configure a global
-  default-deny handler; `langgraph-api` 0.10+ warns about uncovered paths at
-  startup. Resource-specific decorators retain matching `resources=` selectors
-  for backward compatibility; use `@auth.on(resources=...)` for other resources.
-
 ### Notes
 
 - The v3 streaming surface (`AsyncThreadStream`, `SyncThreadStream`, and all

libs/sdk-py/langgraph_sdk/__init__.py

@@ -3,7 +3,7 @@ from langgraph_sdk.client import get_client, get_sync_client
 from langgraph_sdk.encryption import Encryption
 from langgraph_sdk.encryption.types import DecryptResult, EncryptionContext
 
-__version__ = "0.4.4"
+__version__ = "0.4.3"
 
 __all__ = [
     "Auth",

libs/sdk-py/langgraph_sdk/_async/stream.py

@@ -24,7 +24,7 @@ from langchain_core.language_models.chat_model_stream import AsyncChatModelStrea
 from langchain_protocol import Event, SubscribeParams
 
 from langgraph_sdk._async.http import HttpClient
-from langgraph_sdk.schema import LangSmithTracing, QueryParamTypes
+from langgraph_sdk.schema import QueryParamTypes
 from langgraph_sdk.stream.controller import _SeenEventIds
 from langgraph_sdk.stream.decoders import (
     DataDecoder,
@@ -172,7 +172,6 @@ class RunModule:
         input: Any = None,
         config: dict[str, Any] | None = None,
         metadata: dict[str, Any] | None = None,
-        langsmith_tracing: LangSmithTracing | None = None,
     ) -> dict[str, Any]:
         """Send `run.start` to the server. Returns the result (`{"run_id": ...}`)."""
         params: dict[str, Any] = {"assistant_id": self._owner.assistant_id}
@@ -182,8 +181,6 @@ class RunModule:
             params["config"] = config
         if metadata is not None:
             params["metadata"] = metadata
-        if langsmith_tracing is not None:
-            params["langsmith_tracer"] = langsmith_tracing
         loop = asyncio.get_running_loop()
         gate: asyncio.Future[None] = loop.create_future()
         self._owner._run_start_ready = gate

libs/sdk-py/langgraph_sdk/_sync/stream.py

@@ -23,7 +23,7 @@ from langchain_core.language_models.chat_model_stream import ChatModelStream
 from langchain_protocol import Event, SubscribeParams
 
 from langgraph_sdk._sync.http import SyncHttpClient
-from langgraph_sdk.schema import LangSmithTracing, QueryParamTypes
+from langgraph_sdk.schema import QueryParamTypes
 from langgraph_sdk.stream.decoders import (
     DataDecoder,
     Decoder,
@@ -215,7 +215,6 @@ class SyncRunModule:
         input: Any = None,
         config: dict[str, Any] | None = None,
         metadata: dict[str, Any] | None = None,
-        langsmith_tracing: LangSmithTracing | None = None,
     ) -> dict[str, Any]:
         """Send `run.start` to the server. Returns the result (`{"run_id": ...}`)."""
         params: dict[str, Any] = {"assistant_id": self._owner.assistant_id}
@@ -225,8 +224,6 @@ class SyncRunModule:
             params["config"] = config
         if metadata is not None:
             params["metadata"] = metadata
-        if langsmith_tracing is not None:
-            params["langsmith_tracer"] = langsmith_tracing
         result = self._owner._send_command("run.start", params)
         self._owner._run_seen = True
         controller = self._owner._controller

libs/sdk-py/langgraph_sdk/auth/__init__.py

@@ -341,15 +341,9 @@ VUpdate = typing.TypeVar("VUpdate", covariant=True)
 VRead = typing.TypeVar("VRead", covariant=True)
 VDelete = typing.TypeVar("VDelete", covariant=True)
 VSearch = typing.TypeVar("VSearch", covariant=True)
-ResourceActionT = typing.TypeVar("ResourceActionT", bound=str)
-
-_ResourceAction = typing.Literal["create", "read", "update", "delete", "search"]
-_ThreadAction = _ResourceAction | typing.Literal["create_run"]
 
 
-class _ResourceOn(
-    typing.Generic[VCreate, VRead, VUpdate, VDelete, VSearch, ResourceActionT]
-):
+class _ResourceOn(typing.Generic[VCreate, VRead, VUpdate, VDelete, VSearch]):
     """
     Generic base class for resource-specific handlers.
     """
@@ -398,8 +392,8 @@ class _ResourceOn(
     def __call__(
         self,
         *,
-        resources: str | Sequence[str] | None = None,
-        actions: ResourceActionT | Sequence[ResourceActionT] | None = None,
+        resources: str | Sequence[str],
+        actions: str | Sequence[str] | None = None,
     ) -> Callable[
         [_ActionHandler[VCreate | VUpdate | VRead | VDelete | VSearch]],
         _ActionHandler[VCreate | VUpdate | VRead | VDelete | VSearch],
@@ -414,7 +408,7 @@ class _ResourceOn(
         ) = None,
         *,
         resources: str | Sequence[str] | None = None,
-        actions: ResourceActionT | Sequence[ResourceActionT] | None = None,
+        actions: str | Sequence[str] | None = None,
     ) -> (
         _ActionHandler[VCreate | VUpdate | VRead | VDelete | VSearch]
         | Callable[
@@ -422,66 +416,24 @@ class _ResourceOn(
             _ActionHandler[VCreate | VUpdate | VRead | VDelete | VSearch],
         ]
     ):
+        if fn is not None:
+            _validate_handler(fn)
+            return typing.cast(
+                "_ActionHandler[VCreate | VUpdate | VRead | VDelete | VSearch]",
+                _register_handler(self.auth, self.resource, "*", fn),
+            )
+
         def decorator(
             handler: _ActionHandler[VCreate | VUpdate | VRead | VDelete | VSearch],
         ) -> _ActionHandler[VCreate | VUpdate | VRead | VDelete | VSearch]:
             _validate_handler(handler)
-            if resources is None:
-                resource_list = [self.resource]
-            elif isinstance(resources, str):
-                resource_list = [resources]
-            elif isinstance(resources, Sequence):
-                resource_list = list(resources)
-            else:
-                raise TypeError("resources must be a string or sequence of strings")
-            if resource_list != [self.resource]:
-                raise ValueError(
-                    f"Resource-specific decorator for {self.resource!r} cannot "
-                    f"register handlers for {resource_list!r}. Use @auth.on(...) "
-                    "for other or multiple resources."
-                )
-            if actions is None:
-                action_list = ["*"]
-            elif isinstance(actions, str):
-                action_list = [actions]
-            elif isinstance(actions, Sequence):
-                action_list = list(actions)
-            else:
-                raise TypeError("actions must be a string or sequence of strings")
-            if not action_list:
-                raise ValueError("actions must not be empty")
-            if not all(isinstance(action, str) for action in action_list):
-                raise TypeError("actions must be a string or sequence of strings")
-            valid_actions = {
-                value.action
-                for value in vars(self).values()
-                if isinstance(value, _ResourceActionOn)
-            }
-            invalid_actions = (
-                sorted(set(action_list) - valid_actions) if actions is not None else []
+            return typing.cast(
+                "_ActionHandler[VCreate | VUpdate | VRead | VDelete | VSearch]",
+                _register_handler(self.auth, self.resource, "*", handler),
             )
-            if invalid_actions:
-                raise ValueError(
-                    f"Invalid action(s) for {self.resource}: {', '.join(invalid_actions)}"
-                )
-            if len(action_list) != len(set(action_list)):
-                raise ValueError("actions must not contain duplicates")
-            for action in action_list:
-                if (self.resource, action) in self.auth._handlers:
-                    raise ValueError(
-                        f"types.Handler already set for {self.resource}, {action}."
-                    )
-            for action in action_list:
-                _register_handler(self.auth, self.resource, action, handler)
-            return handler
 
-        if fn is not None:
-            return decorator(
-                typing.cast(
-                    "_ActionHandler[VCreate | VUpdate | VRead | VDelete | VSearch]",
-                    fn,
-                )
-            )
+        # Accept keyword-only parameters for future filtering behavior; referenced to satisfy linters.
+        _ = resources, actions
         return decorator
 
 
@@ -492,7 +444,6 @@ class _AssistantsOn(
         types.AssistantsUpdate,
         types.AssistantsDelete,
         types.AssistantsSearch,
-        _ResourceAction,
     ]
 ):
     value = (
@@ -516,7 +467,6 @@ class _ThreadsOn(
         types.ThreadsUpdate,
         types.ThreadsDelete,
         types.ThreadsSearch,
-        _ThreadAction,
     ]
 ):
     value = (
@@ -552,7 +502,6 @@ class _CronsOn(
         types.CronsUpdate,
         types.CronsDelete,
         types.CronsSearch,
-        _ResourceAction,
     ]
 ):
     value = type[

libs/sdk-py/tests/streaming/test_sync_thread_stream.py

@@ -426,17 +426,11 @@ def test_sync_run_start_sends_command():
     with httpx.Client(transport=fake.transport, base_url="http://test") as raw:
         threads = SyncThreadsClient(SyncHttpClient(raw))
         with threads.stream(thread_id="t-1", assistant_id="agent") as thread:
-            result = thread.run.start(
-                input={"x": 1},
-                langsmith_tracing={"project_name": "replica-project"},
-            )
+            result = thread.run.start(input={"x": 1})
 
     assert result == {"run_id": "run-1"}
     assert fake.received_commands[0]["method"] == "run.start"
     assert fake.received_commands[0]["params"]["assistant_id"] == "agent"
-    assert fake.received_commands[0]["params"]["langsmith_tracer"] == {
-        "project_name": "replica-project"
-    }
 
 
 def test_sync_events_iterates_raw_events():

libs/sdk-py/tests/streaming/test_thread_stream.py

@@ -287,7 +287,7 @@ async def test_command_ids_are_monotonic():
     assert [c["id"] for c in fake.received_commands] == [1, 2]
 
 
-async def test_run_start_forwards_config_metadata_and_langsmith_tracing():
+async def test_run_start_forwards_config_and_metadata():
     fake = FakeServer()
     transport = httpx.ASGITransport(app=fake.app)
     async with httpx.AsyncClient(transport=transport, base_url="http://test") as raw:
@@ -297,18 +297,10 @@ async def test_run_start_forwards_config_metadata_and_langsmith_tracing():
                 input={"x": 1},
                 config={"recursion_limit": 5},
                 metadata={"trace": "abc"},
-                langsmith_tracing={
-                    "project_name": "replica-project",
-                    "example_id": "example-1",
-                },
             )
     params = fake.received_commands[0]["params"]
     assert params["config"] == {"recursion_limit": 5}
     assert params["metadata"] == {"trace": "abc"}
-    assert params["langsmith_tracer"] == {
-        "project_name": "replica-project",
-        "example_id": "example-1",
-    }
 
 
 async def test_run_start_raises_outside_context_manager():

libs/sdk-py/tests/test_auth.py

@@ -1,132 +0,0 @@
-import pytest
-
-from langgraph_sdk import Auth
-
-
-def test_handler_multiple_resources_and_actions() -> None:
-    auth = Auth()
-
-    @auth.on(resources=["threads", "assistants"], actions=["read", "search"])
-    async def allow_reads(ctx, value):
-        del value
-        return {"owner": ctx.user.identity}
-
-    assert auth._handlers == {
-        ("threads", "read"): [allow_reads],
-        ("threads", "search"): [allow_reads],
-        ("assistants", "read"): [allow_reads],
-        ("assistants", "search"): [allow_reads],
-    }
-
-
-def test_resource_handler_actions_are_scoped() -> None:
-    auth = Auth()
-
-    @auth.on
-    async def deny_all(ctx, value):
-        del ctx, value
-        return False
-
-    @auth.on.threads(actions=["create", "search"])
-    async def handler(ctx, value):
-        del ctx, value
-        return None
-
-    @auth.on.threads(actions="create_run")
-    async def run_handler(ctx, value):
-        del ctx, value
-        return None
-
-    assert auth._handlers == {
-        ("threads", "create"): [handler],
-        ("threads", "search"): [handler],
-        ("threads", "create_run"): [run_handler],
-    }
-    assert auth._global_handlers == [deny_all]
-
-
-def test_resource_handler_preserves_wildcard() -> None:
-    auth = Auth()
-
-    @auth.on.threads
-    async def handler(ctx, value):
-        del ctx, value
-        return None
-
-    assert auth._handlers == {("threads", "*"): [handler]}
-
-
-def test_resource_handler_preserves_wildcard_with_parentheses() -> None:
-    auth = Auth()
-
-    @auth.on.threads()
-    async def handler(ctx, value):
-        del ctx, value
-        return None
-
-    assert auth._handlers == {("threads", "*"): [handler]}
-
-
-def test_resource_handler_accepts_matching_resource() -> None:
-    auth = Auth()
-
-    @auth.on.threads(resources=["threads"], actions="read")
-    async def handler(ctx, value):
-        del ctx, value
-        return None
-
-    assert auth._handlers == {("threads", "read"): [handler]}
-
-
-@pytest.mark.parametrize(
-    "resources", [["assistants"], ["threads", "assistants"], [], [1]]
-)
-def test_resource_handler_rejects_nonmatching_resources(resources) -> None:
-    auth = Auth()
-
-    async def handler(ctx, value):
-        del ctx, value
-        return None
-
-    with pytest.raises(ValueError, match=r"Use @auth\.on"):
-        auth.on.threads(resources=resources)(handler)
-    assert auth._handlers == {}
-
-
-@pytest.mark.parametrize(
-    ("resource", "actions", "error"),
-    [
-        ("threads", [], ValueError),
-        ("threads", ["reed"], ValueError),
-        ("threads", ["create", "create"], ValueError),
-        ("threads", {"create": True}, TypeError),
-        ("crons", ["create_run"], ValueError),
-    ],
-)
-def test_resource_handler_rejects_invalid_actions(resource, actions, error) -> None:
-    auth = Auth()
-
-    async def handler(ctx, value):
-        del ctx, value
-        return None
-
-    with pytest.raises(error):
-        getattr(auth.on, resource)(actions=actions)(handler)
-    assert auth._handlers == {}
-
-
-def test_resource_handler_registration_is_atomic() -> None:
-    auth = Auth()
-
-    @auth.on.threads.read
-    async def read_handler(ctx, value):
-        del ctx, value
-        return None
-
-    async def handler(ctx, value):
-        del ctx, value
-        return None
-
-    with pytest.raises(ValueError, match="already set"):
-        auth.on.threads(actions=["create", "read"])(handler)
-    assert auth._handlers == {("threads", "read"): [read_handler]}