chore: align type-checker wording with ty

Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>

.github/workflows/_integration_test.yml

@@ -37,7 +37,7 @@ jobs:
       run:
         working-directory: libs/cli
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - name: Get changed files
         id: changed-files
         if: github.event_name != 'workflow_dispatch'

.github/workflows/_lint.yml

@@ -31,7 +31,7 @@ jobs:
           - "3.12"
     name: "lint #${{ matrix.python-version }}"
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - name: Get changed files
         id: changed-files
         if: github.event_name != 'workflow_dispatch'

.github/workflows/_sdk_integration_test.yml

@@ -23,7 +23,7 @@ jobs:
     env:
       HAS_LANGSMITH_API_KEY: ${{ secrets.LANGSMITH_API_KEY != '' }}
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - name: Set up Python
         uses: ./.github/actions/uv_setup
@@ -33,7 +33,7 @@ jobs:
           working-directory: libs/sdk-py
 
       - name: Login to Docker Hub
-        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4
+        uses: docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee # v4
         if: ${{ !github.event.pull_request.head.repo.fork }}
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}

.github/workflows/_test.yml

@@ -25,7 +25,7 @@ jobs:
 
     name: "test #${{ matrix.python-version }}"
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - name: Set up Python ${{ matrix.python-version }}
         uses: ./.github/actions/uv_setup
         with:
@@ -33,7 +33,7 @@ jobs:
           cache-suffix: test-${{ inputs.working-directory }}
           working-directory: ${{ inputs.working-directory }}
       - name: Login to Docker Hub
-        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4
+        uses: docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee # v4
         if: ${{ !github.event.pull_request.head.repo.fork }}
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}

.github/workflows/_test_langgraph.yml

@@ -23,7 +23,7 @@ jobs:
         working-directory: libs/langgraph
     name: "test #${{ matrix.python-version }}"
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - name: Set up Python ${{ matrix.python-version }}
         uses: ./.github/actions/uv_setup
         with:
@@ -31,7 +31,7 @@ jobs:
           cache-suffix: "test-langgraph"
           working-directory: libs/langgraph
       - name: Login to Docker Hub
-        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4
+        uses: docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee # v4
         if: ${{ !github.event.pull_request.head.repo.fork }}
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}

.github/workflows/_test_release.yml

@@ -23,7 +23,7 @@ jobs:
       version: ${{ steps.check-version.outputs.version }}
 
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - name: Set up Python ${{ env.PYTHON_VERSION }}
         uses: ./.github/actions/uv_setup
@@ -74,7 +74,7 @@ jobs:
       id-token: write
 
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
@@ -82,7 +82,7 @@ jobs:
           path: ${{ inputs.working-directory }}/dist/
 
       - name: Publish to test PyPI
-        uses: pypa/gh-action-pypi-publish@dc37677b2e1c63e2034f94d8a5b11f265b73ba33 # release/v1
+        uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # release/v1
         with:
           packages-dir: ${{ inputs.working-directory }}/dist/
           verbose: true

.github/workflows/baseline.yml

@@ -17,7 +17,7 @@ jobs:
       run:
         working-directory: libs/langgraph
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - run: SHA=$(git rev-parse HEAD) && echo "SHA=$SHA" >> $GITHUB_ENV
       - name: Set up Python 3.11
         uses: ./.github/actions/uv_setup
@@ -30,7 +30,7 @@ jobs:
       - name: Run benchmarks
         run: OUTPUT=out/benchmark-baseline.json make -s benchmark
       - name: Save outputs
-        uses: actions/cache/save@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
+        uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
         with:
           key: ${{ runner.os }}-benchmark-baseline-${{ env.SHA }}
           path: |

.github/workflows/bench.yml

@@ -15,7 +15,7 @@ jobs:
       run:
         working-directory: libs/langgraph
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - id: files
         name: Get changed files
         uses: Ana06/get-changed-files@25f79e676e7ea1868813e21465014798211fad8c # v2.3.0
@@ -30,7 +30,7 @@ jobs:
       - name: Install dependencies
         run: uv sync --group test
       - name: Download baseline
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
+        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
         with:
           key: ${{ runner.os }}-benchmark-baseline
           restore-keys: |

.github/workflows/ci.yml

@@ -30,8 +30,8 @@ jobs:
       deps: ${{ steps.filter.outputs.deps || 'true' }}
       sdk_py: ${{ steps.filter.outputs.sdk_py || 'true' }}
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: dorny/paths-filter@7b450fff21473bca461d4b92ce414b9d0420d706 # v4
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: dorny/paths-filter@fbd0ab8f3e69293af611ebaee6363fc25e6d187d # v4
         if: github.event_name != 'workflow_dispatch'
         id: filter
         with:
@@ -112,9 +112,9 @@ jobs:
     name: "Check SDK methods matching"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - name: Set up Python
-        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.11"
       - name: Run check_sdk_methods script
@@ -130,7 +130,7 @@ jobs:
         python-version:
           - "3.13"
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - name: Set up Python ${{ matrix.python-version }}
         uses: ./.github/actions/uv_setup
         with:

.github/workflows/deploy-redirects.yml

@@ -26,10 +26,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - name: Setup Python
-        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: '3.11'
 

.github/workflows/release.yml

@@ -25,7 +25,7 @@ jobs:
       tag: ${{ steps.check-version.outputs.tag }}
 
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - name: Set up Python
         uses: ./.github/actions/uv_setup
@@ -87,7 +87,7 @@ jobs:
     outputs:
       release-body: ${{ steps.generate-release-body.outputs.release-body }}
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           repository: langchain-ai/langgraph
           path: langgraph
@@ -158,7 +158,7 @@ jobs:
       - test-pypi-publish
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       # We explicitly *don't* set up caching here. This ensures our tests are
       # maximally sensitive to catching breakage.
@@ -262,7 +262,7 @@ jobs:
         working-directory: ${{ inputs.working-directory }}
 
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - name: Set up Python
         uses: ./.github/actions/uv_setup
@@ -278,7 +278,7 @@ jobs:
           path: ${{ inputs.working-directory }}/dist/
 
       - name: Publish package distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@dc37677b2e1c63e2034f94d8a5b11f265b73ba33 # release/v1
+        uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # release/v1
         with:
           packages-dir: ${{ inputs.working-directory }}/dist/
           verbose: true
@@ -304,7 +304,7 @@ jobs:
         working-directory: ${{ inputs.working-directory }}
 
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - name: Set up Python
         uses: ./.github/actions/uv_setup

.github/workflows/uv_lock_ugprade.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       
       - name: Set up uv
         uses: ./.github/actions/uv_setup

.gitignore

@@ -85,7 +85,7 @@ ENV/
 env.bak/
 venv.bak/
 
-# mypy
+# Python type checker caches
 .mypy_cache/
 .dmypy.json
 dmypy.json

libs/checkpoint-conformance/langgraph/checkpoint/conformance/spec/test_delta_channel_history.py

@@ -208,93 +208,6 @@ async def test_history_migration_plain_value_as_seed(
     assert values == [2], f"Expected [2], got {values}"
 
 
-# Task ids used by the ordering tests below. `build_delta_chain` tags its own
-# writes with a `uuid4`, whose hex digits are all <= "f", so "aaaa..." sorts
-# before every fixture task id and "zzzz..." sorts after every one of them.
-# That makes the expected order fully determined rather than dependent on which
-# uuid4 the fixture happened to draw.
-TASK_ID_SORTS_FIRST = "aaaaaaaa-0000-0000-0000-000000000000"
-TASK_ID_SORTS_LAST = "zzzzzzzz-0000-0000-0000-000000000000"
-
-
-async def test_history_orders_parallel_writes_by_task_path(
-    saver: BaseCheckpointSaver,
-) -> None:
-    """Writes from several tasks in one super-step replay in task_path order.
-
-    Live execution sorts a super-step's tasks by `task_path_str(path[:3])`
-    before applying their values, so replay has to recover that order rather
-    than `task_id` order — `task_id` is a hash of the path, so the two
-    disagree, and reducers are only required to be batching-invariant, not
-    order-invariant.
-
-    The two task_ids are assigned so they sort in the *opposite* order from
-    their task_paths. A saver ordering by `(task_id, idx)` therefore returns
-    these writes reversed, rather than passing by happening to agree.
-    """
-    configs = await build_delta_chain(
-        saver,
-        thread_id=str(uuid4()),
-        channel="ch",
-        snapshots_at_steps=[0],
-        total_steps=3,
-    )
-    # The chain is: step 0 snapshot (seed), step 1 write, step 2 write.
-    # `aget_delta_channel_history` walks from the head's parent back to the
-    # seed, so it collects step 1's writes only — step 0 terminates the walk
-    # and step 2 is the head, whose own writes are pending for the next
-    # super-step and excluded. So step 1 is where these writes have to go.
-    step_1, head = configs[1], configs[2]
-    await saver.aput_writes(
-        step_1, [("ch", "second")], TASK_ID_SORTS_FIRST, "~pull, 02"
-    )
-    await saver.aput_writes(step_1, [("ch", "first")], TASK_ID_SORTS_LAST, "~pull, 01")
-
-    result = await saver.aget_delta_channel_history(config=head, channels=["ch"])
-    values = [w[2] for w in result["ch"]["writes"]]
-    # 1 is the fixture's own write at step 1. It carries no task_path, so it
-    # sorts ahead of both writes added above.
-    assert values == [1, "first", "second"], (
-        f"Expected task_path order [1, 'first', 'second'], got {values}. "
-        "Ordering by (task_id, idx) alone yields [1, 'second', 'first']."
-    )
-
-
-async def test_history_orders_pathless_writes_first(
-    saver: BaseCheckpointSaver,
-) -> None:
-    """Writes stored without a task_path sort ahead of path-carrying ones.
-
-    A task-less write (graph input) persists `task_path=""`, as does any row
-    written before a saver recorded the column. `""` precedes every
-    `task_path_str` output because that function prefixes tuples with `~`, so
-    those writes replay first — where live execution applies graph input.
-    """
-    configs = await build_delta_chain(
-        saver,
-        thread_id=str(uuid4()),
-        channel="ch",
-        snapshots_at_steps=[0],
-        total_steps=3,
-    )
-    # Same chain shape as above: step 1 is the only step the walk collects.
-    step_1, head = configs[1], configs[2]
-    # Committed in the opposite order to the one they must replay in, so the
-    # assertion cannot pass on insertion order alone.
-    await saver.aput_writes(
-        step_1, [("ch", "from_node")], TASK_ID_SORTS_FIRST, "~pull, a"
-    )
-    await saver.aput_writes(step_1, [("ch", "from_input")], TASK_ID_SORTS_LAST)
-
-    result = await saver.aget_delta_channel_history(config=head, channels=["ch"])
-    values = [w[2] for w in result["ch"]["writes"]]
-    # Both 1 (the fixture's write) and "from_input" are pathless, so they sort
-    # by task_id among themselves and both precede the path-carrying write.
-    assert values == [1, "from_input", "from_node"], (
-        f"Expected pathless writes first, got {values}"
-    )
-
-
 ALL_DELTA_CHANNEL_HISTORY_TESTS = [
     test_history_returns_writes_oldest_first,
     test_history_seed_is_nearest_snapshot,
@@ -303,8 +216,6 @@ ALL_DELTA_CHANNEL_HISTORY_TESTS = [
     test_history_empty_channels_returns_empty,
     test_history_walk_to_root_no_seed,
     test_history_migration_plain_value_as_seed,
-    test_history_orders_parallel_writes_by_task_path,
-    test_history_orders_pathless_writes_first,
 ]
 
 

libs/checkpoint-conformance/pyproject.toml

@@ -58,14 +58,8 @@ lint.select = [
   "UP", # pyupgrade
   "B",  # flake8-bugbear
   "I",  # isort
-  "PLC0415",  # import-outside-top-level
-  "RUF100",  # unused noqa directive
 ]
 lint.ignore = ["E501", "B008"]
-# PLC0415 (import-outside-top-level) is enforced in tests only. Library code
-# still has deferred imports that have not been reviewed, so it stays exempt
-# for now.
-lint.per-file-ignores = { "langgraph/**" = ["PLC0415"] }
 target-version = "py310"
 
 [tool.uv.sources]

libs/checkpoint-conformance/uv.lock

@@ -247,7 +247,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.5.2"
+version = "1.4.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "jsonpatch" },
@@ -260,21 +260,21 @@ dependencies = [
     { name = "typing-extensions" },
     { name = "uuid-utils" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/6e/58/3ad53096eee1e07728e8219ded30ae308b0f2b8b7b26b8ebb6371917c0f5/langchain_core-1.5.2.tar.gz", hash = "sha256:2d13ab35b42eec63d4669a483776b8cdd778ee764107149369fb369d84c08c41", size = 972322, upload-time = "2026-07-28T16:38:37.977Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/59/de/679a53472c25860837e32c0442c962fa86e95317a36460e2c9d5c91b17c2/langchain_core-1.4.0.tar.gz", hash = "sha256:1dc341eed802ed9c117c0df3923c991e5e9e226571e5725c194eeb5bd93d1a7f", size = 920260, upload-time = "2026-05-11T18:42:35.919Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/ca/e4/024e402a65f5ee2eb6ae9667b5ffc5f08776cb4e712f5a11ee1997d56083/langchain_core-1.5.2-py3-none-any.whl", hash = "sha256:a687dd7c3b22c6c1294e1c1eeb61fb6f3a308e6015a1d75b576b3836ad5b5aed", size = 561643, upload-time = "2026-07-28T16:38:36.38Z" },
+    { url = "https://files.pythonhosted.org/packages/0f/1a/86c38c27b81913a1c6c12448cab55defb5a1097c7dc9a4cea83f55477a2d/langchain_core-1.4.0-py3-none-any.whl", hash = "sha256:23cbbdb46e38ddd1dd5247e6167e96013eae74bea4c5949c550809970a9e565c", size = 548120, upload-time = "2026-05-11T18:42:33.992Z" },
 ]
 
 [[package]]
 name = "langchain-protocol"
-version = "0.0.18"
+version = "0.0.15"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "typing-extensions" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/d2/59/b5959aea96faa9146e2e49a7a22882b3528c62efafe9a6a95beab30c2305/langchain_protocol-0.0.18.tar.gz", hash = "sha256:ec3e11782f1ed0c9db38e5a9ed01b0e7a0d3fba406faa8aef6594b73c56a63e6", size = 6150, upload-time = "2026-06-18T17:08:26.959Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/4f/24/9777489d6fbbee64af0c8f96d4f840239c408cf694f3394672807dafc490/langchain_protocol-0.0.15.tar.gz", hash = "sha256:9ab2d11ee73944754f10e037e717098d3a6796f0e58afa9cadda6154e7655ade", size = 5862, upload-time = "2026-05-01T22:30:04.748Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/99/2e/d82db9eec13ad0f72e7aaad5c4bc730ab111934fdc83c85523206eb9b0a0/langchain_protocol-0.0.18-py3-none-any.whl", hash = "sha256:70b53a86fbf9cedc863555effe44da192ab02d556ddbf2cf95b8873adcf41b5a", size = 7221, upload-time = "2026-06-18T17:08:25.996Z" },
+    { url = "https://files.pythonhosted.org/packages/1d/7a/9c97a7b9cbe4c5dc6a44cdb1545450c28f0c8ce89b9c1f0ee7fbad896263/langchain_protocol-0.0.15-py3-none-any.whl", hash = "sha256:461eb794358f83d5e42635a5797799ffec7b4702314e34edf73ac21e75d3ef79", size = 6982, upload-time = "2026-05-01T22:30:03.877Z" },
 ]
 
 [[package]]
@@ -686,7 +686,7 @@ wheels = [
 
 [[package]]
 name = "pytest"
-version = "9.1.1"
+version = "9.0.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "colorama", marker = "sys_platform == 'win32'" },
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 ]
 
 [[package]]

libs/checkpoint-postgres/README.md

@@ -67,12 +67,24 @@ with PostgresSaver.from_conn_string(DB_URI) as checkpointer:
         "v": 4,
         "ts": "2024-07-31T20:14:19.804150+00:00",
         "id": "1ef4f797-8335-6428-8001-8a1503f9b875",
-        "channel_values": {"my_key": "meow", "node": "node"},
-        "channel_versions": {"__start__": 2, "my_key": 3, "start:node": 3, "node": 3},
+        "channel_values": {
+            "my_key": "meow",
+            "node": "node"
+        },
+        "channel_versions": {
+            "__start__": 2,
+            "my_key": 3,
+            "start:node": 3,
+            "node": 3
+        },
         "versions_seen": {
             "__input__": {},
-            "__start__": {"__start__": 1},
-            "node": {"start:node": 2},
+            "__start__": {
+            "__start__": 1
+            },
+            "node": {
+            "start:node": 2
+            }
         },
     }
 
@@ -96,12 +108,24 @@ async with AsyncPostgresSaver.from_conn_string(DB_URI) as checkpointer:
         "v": 4,
         "ts": "2024-07-31T20:14:19.804150+00:00",
         "id": "1ef4f797-8335-6428-8001-8a1503f9b875",
-        "channel_values": {"my_key": "meow", "node": "node"},
-        "channel_versions": {"__start__": 2, "my_key": 3, "start:node": 3, "node": 3},
+        "channel_values": {
+            "my_key": "meow",
+            "node": "node"
+        },
+        "channel_versions": {
+            "__start__": 2,
+            "my_key": 3,
+            "start:node": 3,
+            "node": 3
+        },
         "versions_seen": {
             "__input__": {},
-            "__start__": {"__start__": 1},
-            "node": {"start:node": 2},
+            "__start__": {
+            "__start__": 1
+            },
+            "node": {
+            "start:node": 2
+            }
         },
     }
 

libs/checkpoint-postgres/langgraph/checkpoint/postgres/__init__.py

@@ -223,7 +223,7 @@ class PostgresSaver(BasePostgresSaver):
             >>> checkpoint_tuple = memory.get_tuple(config)
             >>> print(checkpoint_tuple)
             CheckpointTuple(...)
-        """
+        """  # noqa
         thread_id = config["configurable"]["thread_id"]
         checkpoint_id = get_checkpoint_id(config)
         checkpoint_ns = config["configurable"].get("checkpoint_ns", "")
@@ -478,11 +478,9 @@ class PostgresSaver(BasePostgresSaver):
         stage1_sql = _build_delta_stage1_sql(channels, paged=True)
         parent_of: dict[str, str | None] = {}
         ver_by_i_by_cid: list[dict[str, str | None]] = [{} for _ in channels]
-        hb_by_i_by_cid: list[dict[str, bool]] = [{} for _ in channels]
-        inline_by_i_by_cid: list[dict[str, Any]] = [{} for _ in channels]
+        hs_by_i_by_cid: list[dict[str, bool]] = [{} for _ in channels]
         chain_by_ch: dict[str, list[str]] = {ch: [] for ch in channels}
         seed_ver_by_ch: dict[str, str | None] = {ch: None for ch in channels}
-        seed_inline_by_ch: dict[str, Any] = {}
         walk_cursor_by_ch: dict[str, str | None] = {}
         seeded: set[str] = set()
         cursor: str | None = None
@@ -491,8 +489,7 @@ class PostgresSaver(BasePostgresSaver):
             while True:
                 stage1_params: list[Any] = []
                 for ch in channels:
-                    # ver_i, blob channel, blob version, inline_i
-                    stage1_params.extend([ch, ch, ch, ch])
+                    stage1_params.extend([ch, ch])
                 stage1_params.extend(
                     [thread_id, checkpoint_ns, cursor, cursor, _DELTA_PAGE_SIZE]
                 )
@@ -505,19 +502,16 @@ class PostgresSaver(BasePostgresSaver):
                     channels,
                     parent_of,
                     ver_by_i_by_cid,
-                    hb_by_i_by_cid,
-                    inline_by_i_by_cid,
+                    hs_by_i_by_cid,
                 )
                 self._try_advance_walks(
                     checkpoint_id,
                     channels,
                     parent_of,
                     ver_by_i_by_cid,
-                    hb_by_i_by_cid,
-                    inline_by_i_by_cid,
+                    hs_by_i_by_cid,
                     chain_by_ch,
                     seed_ver_by_ch,
-                    seed_inline_by_ch,
                     walk_cursor_by_ch,
                     seeded,
                 )
@@ -552,7 +546,6 @@ class PostgresSaver(BasePostgresSaver):
             channels=channels,
             chain_by_ch=chain_by_ch,
             seed_ver_by_ch=seed_ver_by_ch,
-            seed_inline_by_ch=seed_inline_by_ch,
             stage2_rows=cast("list[_DeltaStage2Row]", stage2_rows),
         )
 

libs/checkpoint-postgres/langgraph/checkpoint/postgres/aio.py

@@ -426,11 +426,9 @@ class AsyncPostgresSaver(BasePostgresSaver):
         stage1_sql = _build_delta_stage1_sql(channels, paged=True)
         parent_of: dict[str, str | None] = {}
         ver_by_i_by_cid: list[dict[str, str | None]] = [{} for _ in channels]
-        hb_by_i_by_cid: list[dict[str, bool]] = [{} for _ in channels]
-        inline_by_i_by_cid: list[dict[str, Any]] = [{} for _ in channels]
+        hs_by_i_by_cid: list[dict[str, bool]] = [{} for _ in channels]
         chain_by_ch: dict[str, list[str]] = {ch: [] for ch in channels}
         seed_ver_by_ch: dict[str, str | None] = {ch: None for ch in channels}
-        seed_inline_by_ch: dict[str, Any] = {}
         walk_cursor_by_ch: dict[str, str | None] = {}
         seeded: set[str] = set()
         cursor: str | None = None
@@ -439,8 +437,7 @@ class AsyncPostgresSaver(BasePostgresSaver):
             while True:
                 stage1_params: list[Any] = []
                 for ch in channels:
-                    # ver_i, blob channel, blob version, inline_i
-                    stage1_params.extend([ch, ch, ch, ch])
+                    stage1_params.extend([ch, ch])
                 stage1_params.extend(
                     [thread_id, checkpoint_ns, cursor, cursor, _DELTA_PAGE_SIZE]
                 )
@@ -453,19 +450,16 @@ class AsyncPostgresSaver(BasePostgresSaver):
                     channels,
                     parent_of,
                     ver_by_i_by_cid,
-                    hb_by_i_by_cid,
-                    inline_by_i_by_cid,
+                    hs_by_i_by_cid,
                 )
                 self._try_advance_walks(
                     checkpoint_id,
                     channels,
                     parent_of,
                     ver_by_i_by_cid,
-                    hb_by_i_by_cid,
-                    inline_by_i_by_cid,
+                    hs_by_i_by_cid,
                     chain_by_ch,
                     seed_ver_by_ch,
-                    seed_inline_by_ch,
                     walk_cursor_by_ch,
                     seeded,
                 )
@@ -496,7 +490,6 @@ class AsyncPostgresSaver(BasePostgresSaver):
             channels=channels,
             chain_by_ch=chain_by_ch,
             seed_ver_by_ch=seed_ver_by_ch,
-            seed_inline_by_ch=seed_inline_by_ch,
             stage2_rows=cast("list[_DeltaStage2Row]", stage2_rows),
         )
 
@@ -580,7 +573,7 @@ class AsyncPostgresSaver(BasePostgresSaver):
         while True:
             try:
                 yield asyncio.run_coroutine_threadsafe(
-                    anext(aiter_),  # type: ignore[arg-type]
+                    anext(aiter_),  # type: ignore[arg-type]  # noqa: F821
                     self.loop,
                 ).result()
             except StopAsyncIteration:

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

@@ -168,7 +168,6 @@ class _DeltaStage2Row(TypedDict, total=False):
     type: str | None
     blob: bytes | None
     task_id: str | None  # "w" rows only
-    task_path: str | None  # "w" rows only
     idx: int | None  # "w" rows only
     version: str | None  # "b" rows only
 
@@ -200,68 +199,27 @@ class _DeltaStage2Row(TypedDict, total=False):
 
 
 def _build_delta_stage1_sql(channels: Sequence[str], *, paged: bool) -> str:
-    """Build stage 1 SQL with K parallel version lookups + seed probes.
+    """Build stage 1 SQL with 2K parallel JSONB key lookups.
 
     For channels=["messages", "files"] (with `paged=True`) the result is::
 
         SELECT checkpoint_id, parent_checkpoint_id,
                checkpoint -> 'channel_versions' ->> %s AS ver_0,
-               EXISTS (SELECT 1 FROM checkpoint_blobs b0
-                       WHERE b0.thread_id = checkpoints.thread_id
-                         AND b0.checkpoint_ns = checkpoints.checkpoint_ns
-                         AND b0.channel = %s
-                         AND b0.version = checkpoint -> 'channel_versions' ->> %s
-                         AND b0.type <> 'empty') AS hb_0,
-               checkpoint -> 'channel_values' -> %s AS inline_0,
+               (checkpoint -> 'channel_values' -> %s) IS NOT NULL AS hs_0,
                checkpoint -> 'channel_versions' ->> %s AS ver_1,
-               EXISTS (...) AS hb_1,
-               checkpoint -> 'channel_values' -> %s AS inline_1
+               (checkpoint -> 'channel_values' -> %s) IS NOT NULL AS hs_1
         FROM checkpoints
         WHERE thread_id = %s AND checkpoint_ns = %s
           AND (%s::text IS NULL OR checkpoint_id < %s)
         ORDER BY checkpoint_id DESC
         LIMIT %s
 
-    A stored value for a channel lives in one of two places, because `put`
-    splits them:
-
-    * **blob** — non-primitive values (and `_DeltaSnapshot`) are moved to
-      `checkpoint_blobs`. `hb_i` ("has blob") probes for one. The probe hits
-      that table's primary key `(thread_id, checkpoint_ns, channel, version)`
-      exactly, so it is an index lookup per row per channel.
-    * **inline** — `None`, `str`, `int`, `float` and `bool` stay in the
-      checkpoint's own `channel_values` and get no blob row at all. `inline_i`
-      returns that value.
-
-    Testing only for a key in `channel_values` (the previous approach) missed
-    blob-stored plain values, since `put` leaves an inline marker there for
-    `_DeltaSnapshot` but not for a plain value — which is what a thread
-    migrated from a pre-delta channel type leaves behind. Probing only the
-    blobs table would conversely miss inline primitives. Both are needed, and
-    the caller treats "either present" as the seed.
-
-    `hb_i` also disambiguates the two: for a `_DeltaSnapshot`, `inline_i` is the
-    literal `true` marker rather than the value, so a blob must win over an
-    inline reading whenever one exists. That ordering is what makes a genuine
-    inline `true` (a bool channel) distinguishable from the marker.
-
-    The `type <> 'empty'` predicate mirrors the check stage 2 already applies
-    when resolving the seed blob. `put` does not currently produce `empty` rows
-    on this path — `blob_versions` is filtered to keys present in
-    `channel_values`, so `_dump_blobs`' empty branch is unreachable from it —
-    but without the predicate the two stages could disagree: stage 1 would
-    terminate the walk on a row stage 2 then discards, yielding no seed *and* a
-    truncated write chain, which is the failure this function exists to avoid.
-
     Channel names are passed as `%s` parameters (safe from SQL injection).
-    Only the column aliases `ver_i` / `hb_i` / `inline_i` and the subquery alias
-    `b{i}` are interpolated into the SQL string (i is bounded by len(channels)
-    and uses safe identifiers).
+    Only the column aliases `ver_i` / `hs_i` are interpolated into the
+    SQL string (i is bounded by len(channels) and uses safe identifiers).
 
-    Caller must extend params with `[ch_0 x4, ch_1 x4, ..., thread_id, ns,
-    cursor, cursor, page_size]` when `paged=True` — four per channel: the
-    version lookup, the blob's channel, the version the blob must match, and the
-    inline lookup.
+    Caller must extend params with `[ch_0, ch_0, ch_1, ch_1, ...,
+    thread_id, ns, cursor, cursor, page_size]` when `paged=True`.
 
     When `paged=False`, the WHERE has no cursor predicate and there's no
     LIMIT/ORDER BY — kept as a non-public helper for tests/diagnostics.
@@ -270,13 +228,7 @@ def _build_delta_stage1_sql(channels: Sequence[str], *, paged: bool) -> str:
     for i in range(len(channels)):
         cols.append(
             f"checkpoint -> 'channel_versions' ->> %s AS ver_{i}, "
-            f"EXISTS (SELECT 1 FROM checkpoint_blobs b{i} "
-            f"WHERE b{i}.thread_id = checkpoints.thread_id "
-            f"AND b{i}.checkpoint_ns = checkpoints.checkpoint_ns "
-            f"AND b{i}.channel = %s "
-            f"AND b{i}.version = checkpoint -> 'channel_versions' ->> %s "
-            f"AND b{i}.type <> 'empty') AS hb_{i}, "
-            f"checkpoint -> 'channel_values' -> %s AS inline_{i}"
+            f"(checkpoint -> 'channel_values' -> %s) IS NOT NULL AS hs_{i}"
         )
     sql = (
         "SELECT checkpoint_id, parent_checkpoint_id, "
@@ -320,7 +272,7 @@ def _build_delta_stage2_sql(
         branches.append(
             "SELECT 'w'::text AS _kind, "
             "checkpoint_id, channel, "
-            "type, blob, task_id, task_path, idx, NULL::text AS version "
+            "type, blob, task_id, idx, NULL::text AS version "
             "FROM checkpoint_writes "
             "WHERE thread_id = %s AND checkpoint_ns = %s AND channel = %s "
             "AND checkpoint_id = ANY(%s)"
@@ -328,8 +280,7 @@ def _build_delta_stage2_sql(
     for _ in channels_with_seed:
         branches.append(
             "SELECT 'b'::text AS _kind, NULL::text AS checkpoint_id, channel, "
-            "type, blob, NULL::text AS task_id, NULL::text AS task_path, "
-            "NULL::int AS idx, version "
+            "type, blob, NULL::text AS task_id, NULL::int AS idx, version "
             "FROM checkpoint_blobs "
             "WHERE thread_id = %s AND checkpoint_ns = %s AND channel = %s "
             "AND version = %s"
@@ -391,8 +342,7 @@ class BasePostgresSaver(BaseCheckpointSaver[str]):
         channels: Sequence[str],
         parent_of: dict[str, str | None],
         ver_by_i_by_cid: list[dict[str, str | None]],
-        hb_by_i_by_cid: list[dict[str, bool]],
-        inline_by_i_by_cid: list[dict[str, Any]],
+        hs_by_i_by_cid: list[dict[str, bool]],
     ) -> str | None:
         """Fold one stage-1 page into the running walk-state mappings.
 
@@ -406,8 +356,7 @@ class BasePostgresSaver(BaseCheckpointSaver[str]):
             parent_of[cid] = cast("str | None", r["parent_checkpoint_id"])
             for i in range(len(channels)):
                 ver_by_i_by_cid[i][cid] = cast("str | None", r.get(f"ver_{i}"))
-                hb_by_i_by_cid[i][cid] = bool(r.get(f"hb_{i}"))
-                inline_by_i_by_cid[i][cid] = r.get(f"inline_{i}")
+                hs_by_i_by_cid[i][cid] = bool(r.get(f"hs_{i}"))
             # Rows are DESC; the last one is the smallest cid in the page.
             oldest = cid
         return oldest
@@ -418,11 +367,9 @@ class BasePostgresSaver(BaseCheckpointSaver[str]):
         channels: Sequence[str],
         parent_of: Mapping[str, str | None],
         ver_by_i_by_cid: Sequence[Mapping[str, str | None]],
-        hb_by_i_by_cid: Sequence[Mapping[str, bool]],
-        inline_by_i_by_cid: Sequence[Mapping[str, Any]],
+        hs_by_i_by_cid: Sequence[Mapping[str, bool]],
         chain_by_ch: dict[str, list[str]],
         seed_ver_by_ch: dict[str, str | None],
-        seed_inline_by_ch: dict[str, Any],
         walk_cursor_by_ch: dict[str, str | None],
         seeded: set[str],
     ) -> None:
@@ -430,15 +377,14 @@ class BasePostgresSaver(BaseCheckpointSaver[str]):
 
         Uses the partial `parent_of` map accumulated so far. A walk stops
         either because:
-          (a) it found a stored value for its channel — a blob or an inline
-              primitive (channel becomes seeded),
+          (a) it found a snapshot for its channel (channel becomes seeded),
           (b) it reached a real root (parent_of[cid] is None — fully
               materialized at this point), or
           (c) the next ancestor cid isn't in `parent_of` yet (waiting for
               a later page; the cursor stays put).
 
-        Mutates `chain_by_ch`, `seed_ver_by_ch`, `seed_inline_by_ch`,
-        `walk_cursor_by_ch`, and `seeded` in place.
+        Mutates `chain_by_ch`, `seed_ver_by_ch`, `walk_cursor_by_ch`, and
+        `seeded` in place.
         """
         for i, ch in enumerate(channels):
             if ch in seeded:
@@ -448,22 +394,15 @@ class BasePostgresSaver(BaseCheckpointSaver[str]):
                 walk_cursor_by_ch[ch] = parent_of.get(target_id)
             cur_cid = walk_cursor_by_ch[ch]
             ch_chain = chain_by_ch[ch]
-            hb_i = hb_by_i_by_cid[i]
-            inline_i = inline_by_i_by_cid[i]
+            hs_i = hs_by_i_by_cid[i]
             ver_i = ver_by_i_by_cid[i]
             while cur_cid is not None:
                 if cur_cid not in parent_of:
                     # Need more pages to continue this walk.
                     break
                 ch_chain.append(cur_cid)
-                has_blob = hb_i.get(cur_cid, False)
-                inline = inline_i.get(cur_cid)
-                if has_blob or inline is not None:
-                    # A blob wins: for a `_DeltaSnapshot` the inline reading is
-                    # the `true` marker, not the value.
+                if hs_i.get(cur_cid, False):
                     seed_ver_by_ch[ch] = ver_i.get(cur_cid)
-                    if not has_blob:
-                        seed_inline_by_ch[ch] = inline
                     seeded.add(ch)
                     cur_cid = None
                     break
@@ -476,29 +415,21 @@ class BasePostgresSaver(BaseCheckpointSaver[str]):
         channels: Sequence[str],
         chain_by_ch: Mapping[str, list[str]],
         seed_ver_by_ch: Mapping[str, str | None],
-        seed_inline_by_ch: Mapping[str, Any],
         stage2_rows: Sequence[_DeltaStage2Row],
     ) -> dict[str, DeltaChannelHistory]:
         """Demux stage 2 rows per channel; produce per-channel histories.
 
         stage2_rows carry `channel` on every row. We build per-channel
         `writes_by_cid` and per-channel `seed_blob` dicts, then assemble
-        a `DeltaChannelHistory` per requested channel.
-
-        A seed comes from the blobs table when the walk found one there, and
-        otherwise from `seed_inline_by_ch` — `put` keeps `None`, `str`, `int`,
-        `float` and `bool` values in the checkpoint's own `channel_values` with
-        no blob row, so those never appear in `stage2_rows`.
-
-        The `seed` key is omitted when the walk reached root without finding a
-        stored value, or when the seed blob is sentinel "empty" — in both cases
-        the consumer treats absence as "start empty".
+        a `DeltaChannelHistory` per requested channel. The `seed` key is omitted
+        when the walk reached root with no snapshot found, or when the
+        seed blob is sentinel "empty" — in both cases the consumer treats
+        absence as "start empty".
         """
-        # writes_by_ch_by_cid[channel][cid] = list of
-        # (type, blob, task_id, idx, task_path)
-        writes_by_ch_by_cid: dict[
-            str, dict[str, list[tuple[str, bytes, str, int, str]]]
-        ] = {ch: {} for ch in channels}
+        # writes_by_ch_by_cid[channel][cid] = list of (type, blob, task_id, idx)
+        writes_by_ch_by_cid: dict[str, dict[str, list[tuple[str, bytes, str, int]]]] = {
+            ch: {} for ch in channels
+        }
         # seed_blob_by_ver[(channel, version)] = (type, blob)
         seed_blob_by_ver: dict[tuple[str, str], tuple[str, bytes]] = {}
 
@@ -509,17 +440,8 @@ class BasePostgresSaver(BaseCheckpointSaver[str]):
                 cid = cast(str, r["checkpoint_id"])
                 writes_by_ch_by_cid.setdefault(ch, {}).setdefault(cid, []).append(
                     cast(
-                        "tuple[str, bytes, str, int, str]",
-                        (
-                            r["type"],
-                            r["blob"],
-                            r["task_id"],
-                            r["idx"],
-                            # `task_path` is NOT NULL DEFAULT '' on "w" rows;
-                            # it is nullable on `_DeltaStage2Row` only because
-                            # the seed branch selects NULL for it.
-                            r["task_path"],
-                        ),
+                        "tuple[str, bytes, str, int]",
+                        (r["type"], r["blob"], r["task_id"], r["idx"]),
                     )
                 )
             else:  # kind == "b"
@@ -528,12 +450,10 @@ class BasePostgresSaver(BaseCheckpointSaver[str]):
                     "tuple[str, bytes]", (r["type"], r["blob"])
                 )
 
-        # Sort writes per (channel, cid) newest-first by
-        # (task_path, task_id, idx) — the order `apply_writes` applied them
-        # in live, and the order documented on `DeltaChannelHistory`.
+        # Sort writes per (channel, cid) newest-first by (task_id, idx)
         for cid_map in writes_by_ch_by_cid.values():
             for ws in cid_map.values():
-                ws.sort(key=lambda w: (w[4], w[2], w[3]), reverse=True)
+                ws.sort(key=lambda w: (w[2], w[3]), reverse=True)
 
         result: dict[str, DeltaChannelHistory] = {}
         for ch in channels:
@@ -543,9 +463,7 @@ class BasePostgresSaver(BaseCheckpointSaver[str]):
             collected: list[PendingWrite] = []
             cid_writes = writes_by_ch_by_cid.get(ch, {})
             for cid in chain_cids:
-                for type_tag, write_blob, task_id, _idx, _path in cid_writes.get(
-                    cid, []
-                ):
+                for type_tag, write_blob, task_id, _idx in cid_writes.get(cid, []):
                     val = self.serde.loads_typed((type_tag, write_blob))
                     collected.append((task_id, ch, val))
             collected.reverse()
@@ -555,10 +473,6 @@ class BasePostgresSaver(BaseCheckpointSaver[str]):
                 blob = seed_blob_by_ver.get((ch, seed_version))
                 if blob is not None and blob[0] != "empty":
                     entry["seed"] = self.serde.loads_typed(blob)
-                elif ch in seed_inline_by_ch:
-                    # Inline primitive: stored in the checkpoint, not the blobs
-                    # table, so stage 2 never returned a row for it.
-                    entry["seed"] = seed_inline_by_ch[ch]
             result[ch] = entry
         return result
 

libs/checkpoint-postgres/langgraph/checkpoint/postgres/shallow.py

@@ -334,7 +334,7 @@ class ShallowPostgresSaver(BasePostgresSaver):
             >>> checkpoint_tuple = memory.get_tuple(config)
             >>> print(checkpoint_tuple)
             CheckpointTuple(...)
-        """
+        """  # noqa
         thread_id = config["configurable"]["thread_id"]
         checkpoint_ns = config["configurable"].get("checkpoint_ns", "")
         args = (thread_id, checkpoint_ns)
@@ -885,7 +885,7 @@ class AsyncShallowPostgresSaver(BasePostgresSaver):
         while True:
             try:
                 yield asyncio.run_coroutine_threadsafe(
-                    anext(aiter_),  # type: ignore[arg-type]
+                    anext(aiter_),  # type: ignore[arg-type]  # noqa: F821
                     self.loop,
                 ).result()
             except StopAsyncIteration:

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

@@ -4,7 +4,6 @@ import asyncio
 import concurrent.futures
 import json
 import logging
-import re
 import threading
 from collections import defaultdict
 from collections.abc import Callable, Iterable, Iterator, Sequence
@@ -239,12 +238,6 @@ class BasePostgresStore(Generic[C]):
     conn: C
     _deserializer: Callable[[bytes | orjson.Fragment], dict[str, Any]] | None
     index_config: PostgresIndexConfig | None
-    ttl_config: TTLConfig | None
-
-    @property
-    def _omit_expired(self) -> bool:
-        """Whether expired-but-unswept rows should be filtered from reads."""
-        return bool(self.ttl_config and self.ttl_config.get("omit_expired"))
 
     def _get_batch_GET_ops_queries(
         self,
@@ -265,17 +258,12 @@ class BasePostgresStore(Generic[C]):
             namespace_groups[op.namespace].append((idx, op.key))
             refresh_ttls[op.namespace].append(op.refresh_ttl)
 
-        omit_expired = self._omit_expired
-        expiry_clause = (
-            "AND (s.expires_at IS NULL OR s.expires_at > NOW())" if omit_expired else ""
-        )
-
         results = []
         for namespace, items in namespace_groups.items():
             _, keys = zip(*items, strict=False)
             this_refresh_ttls = refresh_ttls[namespace]
 
-            query = f"""
+            query = """
                 WITH passed_in AS (
                     SELECT unnest(%s::text[]) AS key,
                         unnest(%s::bool[])  AS do_refresh
@@ -288,14 +276,12 @@ class BasePostgresStore(Generic[C]):
                     AND s.key    = p.key
                     AND p.do_refresh = TRUE
                     AND s.ttl_minutes IS NOT NULL
-                    {expiry_clause}
                     RETURNING s.key
                 )
                 SELECT s.key, s.value, s.created_at, s.updated_at
                 FROM store s
                 JOIN passed_in p ON s.key = p.key
                 WHERE s.prefix = %s
-                {expiry_clause}
             """
             ns_text = _namespace_to_text(namespace)
             params = (
@@ -436,13 +422,6 @@ class BasePostgresStore(Generic[C]):
         - embedding_requests: list of (original_index_in_search_ops, text_query)
         """
 
-        omit_expired = self._omit_expired
-        search_expiry_clause = (
-            "AND (store.expires_at IS NULL OR store.expires_at > NOW())"
-            if omit_expired
-            else ""
-        )
-
         queries = []
         embedding_requests = []
         for idx, (_, op) in enumerate(search_ops):
@@ -464,9 +443,8 @@ class BasePostgresStore(Generic[C]):
             ns_condition = "TRUE"
             ns_param: Sequence[str] | None = None
             if op.namespace_prefix:
-                ns_condition, ns_param = _namespace_prefix_condition(
-                    op.namespace_prefix
-                )
+                ns_condition = "store.prefix LIKE %s"
+                ns_param = (f"{_namespace_to_text(op.namespace_prefix)}%",)
             else:
                 ns_param = ()
 
@@ -513,7 +491,7 @@ class BasePostgresStore(Generic[C]):
                             {score_operator} AS neg_score
                         FROM store
                         JOIN store_vectors sv ON store.prefix = sv.prefix AND store.key = sv.key
-                        WHERE {ns_condition} {extra_filters} {search_expiry_clause}
+                        WHERE {ns_condition} {extra_filters}
                         ORDER BY {score_operator} ASC
                         LIMIT %s
                     """
@@ -549,7 +527,7 @@ class BasePostgresStore(Generic[C]):
                 base_query = f"""
                         SELECT store.prefix, store.key, store.value, store.created_at, store.updated_at, NULL AS score
                         FROM store
-                        WHERE {ns_condition} {extra_filters} {search_expiry_clause}
+                        WHERE {ns_condition} {extra_filters}
                         ORDER BY store.updated_at DESC
                         LIMIT %s
                         OFFSET %s
@@ -613,23 +591,18 @@ class BasePostgresStore(Generic[C]):
             """
             params: list[Any] = [op.max_depth, op.max_depth]
 
-            omit_expired = self._omit_expired
             conditions = []
-            if omit_expired:
-                conditions.append("(expires_at IS NULL OR expires_at > NOW())")
             if op.match_conditions:
                 for condition in op.match_conditions:
-                    if condition.match_type in ("prefix", "suffix"):
-                        if not condition.path:
-                            # An empty path constrains nothing; skipping keeps it a
-                            # no-op rather than emitting a pattern that matches no
-                            # namespace at all.
-                            continue
-                        conditions.append("prefix ~ %s")
+                    if condition.match_type == "prefix":
+                        conditions.append("prefix LIKE %s")
                         params.append(
-                            _namespace_match_pattern(
-                                condition.path, condition.match_type
-                            )
+                            f"{_namespace_to_text(condition.path, handle_wildcards=True)}%"
+                        )
+                    elif condition.match_type == "suffix":
+                        conditions.append("prefix LIKE %s")
+                        params.append(
+                            f"%{_namespace_to_text(condition.path, handle_wildcards=True)}"
                         )
                     else:
                         logger.warning(
@@ -1275,59 +1248,15 @@ def _get_index_params(store: Any) -> tuple[str, dict[str, Any]]:
     return kind, sanitized
 
 
-def _namespace_to_text(namespace: tuple[str, ...]) -> str:
+def _namespace_to_text(
+    namespace: tuple[str, ...], handle_wildcards: bool = False
+) -> str:
     """Convert namespace tuple to text string."""
+    if handle_wildcards:
+        namespace = tuple("%" if val == "*" else val for val in namespace)
     return ".".join(namespace)
 
 
-def _escape_like_literal(text: str) -> str:
-    """Escape LIKE metacharacters so `text` is matched literally.
-
-    Namespace labels may contain `_` and `%`, which would otherwise act as
-    wildcards: `("user_1",)` would match `("userX1",)`. Backslash is escaped
-    first so it cannot escape the following character. Requires an explicit
-    `ESCAPE '\\'` clause on the pattern.
-    """
-    return text.replace("\\", "\\\\").replace("%", "\\%").replace("_", "\\_")
-
-
-def _namespace_prefix_condition(namespace_prefix: tuple[str, ...]) -> tuple[str, tuple]:
-    """Build the SQL scoping a search to a namespace and its descendants.
-
-    Matches the namespace exactly or requires the `.` separator before any
-    remainder, so a prefix of `("foo",)` does not also match `("foobar",)`.
-
-    Both arms stay index-friendly: equality on the `(prefix, key)` primary key,
-    the anchored LIKE on the `prefix text_pattern_ops` index.
-
-    Only the LIKE arm is escaped -- equality does not interpret metacharacters,
-    so escaping it would stop `("user_1",)` from matching itself.
-    """
-    path = _namespace_to_text(namespace_prefix)
-    condition = r"(store.prefix = %s OR store.prefix LIKE %s ESCAPE '\')"
-    return condition, (path, f"{_escape_like_literal(path)}.%")
-
-
-def _namespace_match_pattern(path: tuple[str, ...], match_type: str) -> str:
-    """Build a POSIX regex matching the dot-joined prefix on whole segments.
-
-    Needed because `LIKE` cannot express "any character except the separator".
-    Matches how `InMemoryStore` compares namespaces element-wise.
-
-    `*` matches exactly one segment. Prefix matches stay open-ended but must end
-    on a separator; suffix matches anchor at the end and begin on one.
-
-    Examples:
-        prefix ("uid", "*", "alice") -> ^uid\\.[^.]+\\.alice(\\.|\\Z)
-        suffix ("alice",)            -> (^|\\.)alice\\Z
-    """
-    segments = ("[^.]+" if part == "*" else re.escape(part) for part in path)
-    body = r"\.".join(segments)
-    if match_type == "suffix":
-        return rf"(^|\.){body}\Z"
-    return rf"^{body}(\.|\Z)"
-
-
 def _row_to_item(
     namespace: tuple[str, ...],
     row: Row,

libs/checkpoint-postgres/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "langgraph-checkpoint-postgres"
-version = "3.1.1"
+version = "3.1.0"
 description = "Library with a Postgres implementation of LangGraph checkpoint saver."
 authors = []
 requires-python = ">=3.10"
@@ -32,7 +32,6 @@ test = [
   "pytest-mock",
   "psycopg[binary]",
   "langgraph-checkpoint",
-  "langgraph-checkpoint-conformance",
   "pytest-watcher",
 ]
 lint = [
@@ -50,7 +49,6 @@ default-groups = ['dev']
 
 [tool.uv.sources]
 langgraph-checkpoint = { path = "../checkpoint", editable = true }
-langgraph-checkpoint-conformance = { path = "../checkpoint-conformance", editable = true }
 
 [tool.hatch.build.targets.wheel]
 include = ["langgraph"]
@@ -66,8 +64,6 @@ lint.select = [
   "UP", # pyupgrade
   "B",  # flake8-bugbear
   "I",  # isort
-  "PLC0415",  # import-outside-top-level
-  "RUF100",  # unused noqa directive
   "UP", # pyupgrade
 ]
 lint.ignore = ["E501", "B008"]

libs/checkpoint-postgres/tests/test_async.py

@@ -380,15 +380,13 @@ async def test_delta_channel_chain_reconstruction(saver_name: str) -> None:
         "langgraph.channels.delta", reason="langgraph core not installed"
     )
 
-    # Deferred on purpose: langgraph core is not a test dependency of this
-    # package, so these must stay behind the importorskip above.
-    from typing import Annotated  # noqa: PLC0415
+    from typing import Annotated
 
-    from langchain_core.messages import AIMessage, HumanMessage  # noqa: PLC0415
-    from langgraph.channels.delta import DeltaChannel  # noqa: PLC0415
-    from langgraph.graph import START, StateGraph  # noqa: PLC0415
-    from langgraph.graph.message import _messages_delta_reducer  # noqa: PLC0415
-    from typing_extensions import TypedDict  # noqa: PLC0415
+    from langchain_core.messages import AIMessage, HumanMessage
+    from langgraph.channels.delta import DeltaChannel
+    from langgraph.graph import START, StateGraph
+    from langgraph.graph.message import _messages_delta_reducer
+    from typing_extensions import TypedDict
 
     class State(TypedDict):
         messages: Annotated[list, DeltaChannel(_messages_delta_reducer)]

libs/checkpoint-postgres/tests/test_async_store.py

@@ -739,135 +739,3 @@ async def test_store_ttl(store):
     # Now has been (TTL_SECONDS-2)*2 > TTL_SECONDS + TTL_SECONDS/2
     results = await store.asearch(ns, query="bar", refresh_ttl=False)
     assert len(results) == 0
-
-
-async def _aexpire_now(
-    store: AsyncPostgresStore, ns: tuple[str, ...], key: str
-) -> None:
-    """Backdate a row's expires_at into the past without deleting it (unswept)."""
-    async with store._cursor() as cur:
-        await cur.execute(
-            "UPDATE store SET expires_at = NOW() - INTERVAL '1 minute' "
-            "WHERE prefix = %s AND key = %s",
-            (".".join(ns), key),
-        )
-
-
-async def _arow_exists(
-    store: AsyncPostgresStore, ns: tuple[str, ...], key: str
-) -> bool:
-    async with store._cursor() as cur:
-        await cur.execute(
-            "SELECT COUNT(*) AS n FROM store WHERE prefix = %s AND key = %s",
-            (".".join(ns), key),
-        )
-        return (await cur.fetchone())["n"] == 1
-
-
-async def _astored_expires_at(store: AsyncPostgresStore, ns: tuple[str, ...], key: str):
-    async with store._cursor() as cur:
-        await cur.execute(
-            "SELECT expires_at FROM store WHERE prefix = %s AND key = %s",
-            (".".join(ns), key),
-        )
-        return (await cur.fetchone())["expires_at"]
-
-
-async def test_omit_expired_filters_read_paths(store: AsyncPostgresStore) -> None:
-    await store.stop_ttl_sweeper()  # deterministic: no background deletion
-    store.ttl_config["omit_expired"] = True
-
-    expired_ns = ("omit", "expired")
-    control_ns = ("omit", "control")
-    await store.aput(expired_ns, "e", {"data": "gone"}, ttl=TTL_MINUTES)
-    await store.aput(control_ns, "c", {"data": "keep"}, ttl=None)
-    await _aexpire_now(store, expired_ns, "e")
-
-    # The row is expired but physically still present (unswept).
-    assert await _arow_exists(store, expired_ns, "e")
-
-    # aget omits it; the never-expiring control is still returned.
-    assert await store.aget(expired_ns, "e") is None
-    assert await store.aget(control_ns, "c") is not None
-
-    # asearch omits it but returns the control.
-    assert await store.asearch(expired_ns) == []
-    assert [i.key for i in await store.asearch(control_ns)] == ["c"]
-
-    # alist_namespaces drops the expired-only namespace, keeps the control.
-    namespaces = await store.alist_namespaces(prefix=("omit",))
-    assert expired_ns not in namespaces
-    assert control_ns in namespaces
-
-
-@pytest.mark.parametrize("omit", [None, False], ids=["default", "explicit-false"])
-async def test_omit_expired_disabled_preserves_expired_rows(
-    store: AsyncPostgresStore, omit
-) -> None:
-    await store.stop_ttl_sweeper()
-    if omit is not None:
-        store.ttl_config["omit_expired"] = omit
-
-    ns = ("keep",)
-    await store.aput(ns, "k", {"data": "still-here"}, ttl=TTL_MINUTES)
-    await _aexpire_now(store, ns, "k")
-
-    assert await store.aget(ns, "k", refresh_ttl=False) is not None
-    assert [i.key for i in await store.asearch(ns, refresh_ttl=False)] == ["k"]
-    assert ns in await store.alist_namespaces(prefix=("keep",))
-
-
-async def test_omit_expired_refresh_ttl_only_refreshes_live_rows(
-    store: AsyncPostgresStore,
-) -> None:
-    await store.stop_ttl_sweeper()
-    store.ttl_config["omit_expired"] = True
-
-    ns = ("refresh",)
-    await store.aput(ns, "expired", {"n": 0}, ttl=TTL_MINUTES)
-    await store.aput(ns, "live_get", {"n": 1}, ttl=TTL_MINUTES)
-    await store.aput(ns, "live_search", {"n": 2}, ttl=TTL_MINUTES)
-    await _aexpire_now(store, ns, "expired")
-
-    expired_before = await _astored_expires_at(store, ns, "expired")
-    get_before = await _astored_expires_at(store, ns, "live_get")
-    search_before = await _astored_expires_at(store, ns, "live_search")
-
-    # refresh_ttl=True must NOT resurrect the expired row (via aget or asearch)...
-    assert await store.aget(ns, "expired", refresh_ttl=True) is None
-    live_keys = [i.key for i in await store.asearch(ns, refresh_ttl=True)]
-    assert "expired" not in live_keys
-    assert await _astored_expires_at(store, ns, "expired") == expired_before
-
-    # ...but must still extend the live rows that were read.
-    assert await store.aget(ns, "live_get", refresh_ttl=True) is not None
-    assert await _astored_expires_at(store, ns, "live_get") > get_before
-    assert await _astored_expires_at(store, ns, "live_search") > search_before
-
-
-async def test_omit_expired_search_pagination(store: AsyncPostgresStore) -> None:
-    await store.stop_ttl_sweeper()
-    store.ttl_config["omit_expired"] = True
-
-    ns = ("page",)
-    for k in ("a", "b", "c"):
-        await store.aput(ns, k, {"k": k}, ttl=TTL_MINUTES)
-    await store.aput(ns, "expired", {"k": "x"}, ttl=TTL_MINUTES)
-    await _aexpire_now(store, ns, "expired")
-
-    seconds_ago = {"a": 1, "expired": 2, "b": 3, "c": 4}
-    # updated_at DESC orders these a, expired, b, c, so the expired row sits inside
-    # the first limit=2 window. Correct (pre-LIMIT) filtering yields live pages
-    # [a, b] then [c]; post-LIMIT filtering would underfill page 1 to just [a].
-    async with store._cursor() as cur:
-        for key, secs in seconds_ago.items():
-            await cur.execute(
-                "UPDATE store SET updated_at = NOW() - (%s * INTERVAL '1 second') "
-                "WHERE prefix = %s AND key = %s",
-                (secs, ".".join(ns), key),
-            )
-
-    page1 = await store.asearch(ns, limit=2, offset=0)
-    page2 = await store.asearch(ns, limit=2, offset=2)
-    assert [i.key for i in page1] == ["a", "b"]
-    assert [i.key for i in page2] == ["c"]

libs/checkpoint-postgres/tests/test_conformance_delta.py

@@ -1,30 +0,0 @@
-"""Run delta-channel conformance capabilities against AsyncPostgresSaver."""
-
-from __future__ import annotations
-
-import pytest
-from langgraph.checkpoint.conformance import validate
-from langgraph.checkpoint.conformance.initializer import checkpointer_test
-
-from langgraph.checkpoint.postgres.aio import AsyncPostgresSaver
-from tests.conftest import DEFAULT_URI
-
-
-@pytest.mark.asyncio
-async def test_delta_channel_conformance():
-    @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={
-            "delta_channel_history",
-        },
-    )
-    for cap, result in report.results.items():
-        if result.passed is False:
-            details = "\n".join(result.failures or [])
-            pytest.fail(f"Capability {cap} failed:\n{details}")

libs/checkpoint-postgres/tests/test_delta_plain_value_seed.py

@@ -1,204 +0,0 @@
-"""Seed detection for `DeltaChannel` histories on Postgres.
-
-`put` splits stored values in two: primitives stay inline in the checkpoint's
-`channel_values`, everything else moves to `checkpoint_blobs`. Only
-`_DeltaSnapshot` leaves an inline marker behind when it moves, so the stage-1
-walk has to check both places — a blob probe alone misses inline primitives, and
-an inline-key check alone missed blob-stored plain values, which is what a thread
-migrated from a pre-delta channel type leaves behind. See #8534.
-"""
-
-from __future__ import annotations
-
-from typing import Any
-from uuid import uuid4
-
-import pytest
-from langgraph.checkpoint.base import Checkpoint, empty_checkpoint
-from langgraph.checkpoint.base.id import uuid6
-from langgraph.checkpoint.serde.types import _DeltaSnapshot
-
-from langgraph.checkpoint.postgres.aio import AsyncPostgresSaver
-from tests.conftest import DEFAULT_URI
-
-CHANNEL = "items"
-
-
-async def _build_chain(saver: AsyncPostgresSaver, seed_value: Any) -> tuple[str, dict]:
-    """Store `seed_value` at step 1, then two steps that store nothing.
-
-    Every step carries a write so the walk has something to collect.
-    Returns `(thread_id, head_config)`.
-    """
-    thread_id = str(uuid4())
-    parent: dict | None = None
-    for step in range(4):
-        config: dict = {"configurable": {"thread_id": thread_id, "checkpoint_ns": ""}}
-        if parent is not None:
-            config["configurable"]["checkpoint_id"] = parent["configurable"][
-                "checkpoint_id"
-            ]
-        cp: Checkpoint = empty_checkpoint()
-        cp["id"] = str(uuid6(clock_seq=step))
-        new_versions: dict[str, Any] = {}
-        if step == 1:
-            cp["channel_values"][CHANNEL] = seed_value
-            cp["channel_versions"][CHANNEL] = "v1"
-            new_versions[CHANNEL] = "v1"
-        else:
-            cp["channel_versions"][CHANNEL] = f"v{step}"
-        parent = await saver.aput(
-            config, cp, {"source": "loop", "step": step, "parents": {}}, new_versions
-        )
-        await saver.aput_writes(parent, [(CHANNEL, f"w{step}")], str(uuid4()))
-    assert parent is not None
-    return thread_id, parent
-
-
-@pytest.mark.asyncio
-async def test_plain_value_seed_is_found() -> None:
-    """A pre-delta plain value must be located as the seed.
-
-    Before #8534 the walk ran to the root and returned no seed, which happens
-    to reconstruct correctly for additive reducers while costing an
-    O(thread length) replay on every read.
-    """
-    async with AsyncPostgresSaver.from_conn_string(DEFAULT_URI) as saver:
-        await saver.setup()
-        _, head = await _build_chain(saver, [10, 20])
-
-        result = await saver.aget_delta_channel_history(config=head, channels=[CHANNEL])
-        entry = result[CHANNEL]
-
-        assert entry.get("seed") == [10, 20], (
-            f"expected the plain value as seed, got {entry.get('seed', '<missing>')}"
-        )
-        # Only the writes between the seed and the head's parent replay: step 1
-        # (the seed's own) and step 2. Step 0 is older than the seed, step 3 is
-        # pending at the head.
-        assert [w[2] for w in entry["writes"]] == ["w1", "w2"]
-
-
-@pytest.mark.asyncio
-async def test_delta_snapshot_seed_is_found() -> None:
-    """The `_DeltaSnapshot` path keeps working, so both seed kinds agree."""
-    async with AsyncPostgresSaver.from_conn_string(DEFAULT_URI) as saver:
-        await saver.setup()
-        _, head = await _build_chain(saver, _DeltaSnapshot([10, 20]))
-
-        result = await saver.aget_delta_channel_history(config=head, channels=[CHANNEL])
-        entry = result[CHANNEL]
-
-        seed = entry.get("seed")
-        assert isinstance(seed, _DeltaSnapshot), f"expected a snapshot, got {seed!r}"
-        assert seed.value == [10, 20]
-        assert [w[2] for w in entry["writes"]] == ["w1", "w2"]
-
-
-@pytest.mark.asyncio
-async def test_version_bump_without_a_value_does_not_hide_an_older_seed() -> None:
-    """A delta-era step bumps `channel_versions` without storing a value, so no
-    blob exists for that version. The probe must report no seed there and keep
-    walking rather than stopping at a version it cannot resolve.
-
-    Step 0 holds the real value; step 1 bumps the version with nothing stored.
-    Walking back from the head has to pass step 1 to reach step 0.
-    """
-    async with AsyncPostgresSaver.from_conn_string(DEFAULT_URI) as saver:
-        await saver.setup()
-        thread_id = str(uuid4())
-        parent: dict | None = None
-        for step in range(4):
-            config: dict = {
-                "configurable": {"thread_id": thread_id, "checkpoint_ns": ""}
-            }
-            if parent is not None:
-                config["configurable"]["checkpoint_id"] = parent["configurable"][
-                    "checkpoint_id"
-                ]
-            cp: Checkpoint = empty_checkpoint()
-            cp["id"] = str(uuid6(clock_seq=step))
-            new_versions: dict[str, Any] = {}
-            if step == 0:
-                cp["channel_values"][CHANNEL] = [10, 20]
-                cp["channel_versions"][CHANNEL] = "v0"
-                new_versions[CHANNEL] = "v0"
-            elif step == 1:
-                # Version bumped, value absent -> no blob row written.
-                cp["channel_versions"][CHANNEL] = "v1"
-                new_versions[CHANNEL] = "v1"
-            else:
-                cp["channel_versions"][CHANNEL] = "v1"
-            parent = await saver.aput(
-                config,
-                cp,
-                {"source": "loop", "step": step, "parents": {}},
-                new_versions,
-            )
-            await saver.aput_writes(parent, [(CHANNEL, f"w{step}")], str(uuid4()))
-        assert parent is not None
-
-        result = await saver.aget_delta_channel_history(
-            config=parent, channels=[CHANNEL]
-        )
-        entry = result[CHANNEL]
-
-        assert entry.get("seed") == [10, 20], (
-            "the walk stopped at the empty blob instead of reaching the real "
-            f"value at step 0; got {entry.get('seed', '<missing>')}"
-        )
-        assert [w[2] for w in entry["writes"]] == ["w0", "w1", "w2"]
-
-
-@pytest.mark.asyncio
-async def test_inline_primitive_seed_is_found() -> None:
-    """`put` keeps `None`, `str`, `int`, `float` and `bool` in the checkpoint's
-    own `channel_values` with no blob row, so a blob probe alone cannot see
-    them. Stage 1 reads the inline value too and uses it when there is no blob.
-    """
-    async with AsyncPostgresSaver.from_conn_string(DEFAULT_URI) as saver:
-        await saver.setup()
-        for seed_value in (42, "x", 3.5, None):
-            _, head = await _build_chain(saver, seed_value)
-            entry = (
-                await saver.aget_delta_channel_history(config=head, channels=[CHANNEL])
-            )[CHANNEL]
-            if seed_value is None:
-                # A JSON null is indistinguishable from "no value stored", so
-                # the walk keeps going; replay from empty is the correct result.
-                assert "seed" not in entry
-            else:
-                assert entry.get("seed") == seed_value, (
-                    f"inline {type(seed_value).__name__} seed not found: "
-                    f"{entry.get('seed', '<missing>')!r}"
-                )
-                assert [w[2] for w in entry["writes"]] == ["w1", "w2"]
-
-
-@pytest.mark.asyncio
-async def test_inline_true_is_not_read_as_a_snapshot_marker() -> None:
-    """`put` inlines a literal `true` in `channel_values` as the marker for a
-    `_DeltaSnapshot`, which is also what a genuine `bool` channel holding
-    `True` looks like. A blob exists only in the snapshot case, so preferring
-    the blob keeps the two apart.
-    """
-    async with AsyncPostgresSaver.from_conn_string(DEFAULT_URI) as saver:
-        await saver.setup()
-
-        _, head = await _build_chain(saver, True)
-        entry = (
-            await saver.aget_delta_channel_history(config=head, channels=[CHANNEL])
-        )[CHANNEL]
-        assert entry.get("seed") is True, (
-            f"a real inline True must survive, got {entry.get('seed', '<missing>')!r}"
-        )
-
-        _, snap_head = await _build_chain(saver, _DeltaSnapshot(True))
-        snap_entry = (
-            await saver.aget_delta_channel_history(config=snap_head, channels=[CHANNEL])
-        )[CHANNEL]
-        seed = snap_entry.get("seed")
-        assert isinstance(seed, _DeltaSnapshot), (
-            f"the marker must resolve to the blob, not inline true; got {seed!r}"
-        )
-        assert seed.value is True

libs/checkpoint-postgres/tests/test_store.py

@@ -20,10 +20,6 @@ from langgraph.store.base import (
 from psycopg import Connection
 
 from langgraph.store.postgres import PostgresStore
-from langgraph.store.postgres.base import (
-    _escape_like_literal,
-    _namespace_match_pattern,
-)
 from tests.conftest import (
     DEFAULT_URI,
     VECTOR_TYPES,
@@ -330,127 +326,6 @@ def test_list_namespaces(store) -> None:
         store.delete(namespace, "dummy")
 
 
-def test_escape_like_literal() -> None:
-    assert _escape_like_literal("users.alice") == "users.alice"
-    assert _escape_like_literal("user_1") == r"user\_1"
-    assert _escape_like_literal("100%") == r"100\%"
-    assert _escape_like_literal("a\\b") == "a\\\\b"
-    assert _escape_like_literal("") == ""
-
-
-def test_namespace_match_pattern() -> None:
-    assert _namespace_match_pattern(("foo",), "prefix") == r"^foo(\.|\Z)"
-    assert _namespace_match_pattern(("uid", "users"), "prefix") == r"^uid\.users(\.|\Z)"
-    assert (
-        _namespace_match_pattern(("uid", "*", "alice"), "prefix")
-        == r"^uid\.[^.]+\.alice(\.|\Z)"
-    )
-    assert _namespace_match_pattern(("alice",), "suffix") == r"(^|\.)alice\Z"
-
-    # Regex metacharacters in a label are quoted, not interpreted.
-    pattern = _namespace_match_pattern(("a.b+c",), "prefix")
-    assert re.match(pattern, "a.b+c.child")
-    assert not re.match(pattern, "axbbbc")
-
-
-def test_search_namespace_segment_boundary(store) -> None:
-    """Prefix scoping must stop at namespace segment boundaries.
-
-    Namespaces are stored dot-joined, so matching the raw text also returns
-    siblings sharing leading characters. Callers isolate tenants by namespace,
-    so prefix-shaped ids (1 vs 12) would cross-read.
-    """
-    for namespace in [
-        ("foo",),
-        ("foo", "child"),
-        ("foo", "child", "deep"),
-        ("foobar",),
-        ("foobar", "baz"),
-        ("foo2",),
-    ]:
-        store.put(namespace, "k", {"v": 1})
-
-    def _namespaces(prefix: tuple[str, ...]) -> set[tuple[str, ...]]:
-        return {item.namespace for item in store.search(prefix, limit=100)}
-
-    assert _namespaces(("foo",)) == {
-        ("foo",),
-        ("foo", "child"),
-        ("foo", "child", "deep"),
-    }
-    # The sibling scope is independent, not merely narrower.
-    assert _namespaces(("foobar",)) == {("foobar",), ("foobar", "baz")}
-    assert _namespaces(("foo", "child")) == {("foo", "child"), ("foo", "child", "deep")}
-    assert _namespaces(("foo2",)) == {("foo2",)}
-    assert _namespaces(("fo",)) == set()
-
-
-def test_search_empty_prefix_is_unconstrained(store) -> None:
-    """An empty prefix constrains nothing and must return every namespace."""
-    for namespace in [("a",), ("b", "c"), ("d", "e", "f")]:
-        store.put(namespace, "k", {"v": 1})
-
-    assert {item.namespace for item in store.search((), limit=100)} == {
-        ("a",),
-        ("b", "c"),
-        ("d", "e", "f"),
-    }
-
-
-def test_search_namespace_like_metacharacters(store) -> None:
-    """`_` and `%` are legal namespace labels, not LIKE wildcards."""
-    for namespace in [
-        ("user_1",),
-        ("user_1", "child"),
-        ("userX1",),
-        ("a%b",),
-        ("axxb",),
-    ]:
-        store.put(namespace, "k", {"v": 1})
-
-    def _namespaces(prefix: tuple[str, ...]) -> set[tuple[str, ...]]:
-        return {item.namespace for item in store.search(prefix, limit=100)}
-
-    # Also asserts the namespace still matches itself, which catches escaping
-    # the equality arm by mistake.
-    assert _namespaces(("user_1",)) == {("user_1",), ("user_1", "child")}
-    assert _namespaces(("a%b",)) == {("a%b",)}
-
-
-def test_list_namespaces_segment_boundary(store) -> None:
-    for namespace in [
-        ("foo",),
-        ("foo", "child"),
-        ("foobar",),
-        ("foobar", "baz"),
-        ("uid", "users", "alice"),
-        ("uid", "users", "malice"),
-        ("uid", "a", "b", "alice"),
-    ]:
-        store.put(namespace, "k", {"v": 1})
-
-    assert set(store.list_namespaces(prefix=["foo"], limit=100)) == {
-        ("foo",),
-        ("foo", "child"),
-    }
-    # Suffix must align to a segment: "malice" does not end with the "alice"
-    # segment.
-    assert set(store.list_namespaces(suffix=["alice"], limit=100)) == {
-        ("uid", "users", "alice"),
-        ("uid", "a", "b", "alice"),
-    }
-    # "*" spans exactly one segment.
-    assert set(store.list_namespaces(prefix=["uid", "*", "alice"], limit=100)) == {
-        ("uid", "users", "alice"),
-    }
-    # Prefix matching stays open-ended across depth.
-    assert set(store.list_namespaces(prefix=["uid"], limit=100)) == {
-        ("uid", "users", "alice"),
-        ("uid", "users", "malice"),
-        ("uid", "a", "b", "alice"),
-    }
-
-
 def test_search(store) -> None:
     # Create test data
     test_data = [
@@ -988,133 +863,6 @@ def test_store_ttl(store):
     assert len(res) == 0
 
 
-def _expire_now(store: PostgresStore, ns: tuple[str, ...], key: str) -> None:
-    """Backdate a row's expires_at into the past without deleting it (unswept)."""
-    with store._cursor() as cur:
-        cur.execute(
-            "UPDATE store SET expires_at = NOW() - INTERVAL '1 minute' "
-            "WHERE prefix = %s AND key = %s",
-            (".".join(ns), key),
-        )
-
-
-def _row_exists(store: PostgresStore, ns: tuple[str, ...], key: str) -> bool:
-    with store._cursor() as cur:
-        cur.execute(
-            "SELECT COUNT(*) AS n FROM store WHERE prefix = %s AND key = %s",
-            (".".join(ns), key),
-        )
-        return cur.fetchone()["n"] == 1
-
-
-def _stored_expires_at(store: PostgresStore, ns: tuple[str, ...], key: str):
-    with store._cursor() as cur:
-        cur.execute(
-            "SELECT expires_at FROM store WHERE prefix = %s AND key = %s",
-            (".".join(ns), key),
-        )
-        return cur.fetchone()["expires_at"]
-
-
-def test_omit_expired_filters_read_paths(store: PostgresStore) -> None:
-    store.stop_ttl_sweeper()  # deterministic: no background deletion
-    store.ttl_config["omit_expired"] = True
-
-    expired_ns = ("omit", "expired")
-    control_ns = ("omit", "control")
-    store.put(expired_ns, "e", {"data": "gone"}, ttl=TTL_MINUTES)
-    store.put(control_ns, "c", {"data": "keep"}, ttl=None)
-    _expire_now(store, expired_ns, "e")
-
-    # The row is expired but physically still present (unswept).
-    assert _row_exists(store, expired_ns, "e")
-
-    # get omits it; the never-expiring control is still returned.
-    assert store.get(expired_ns, "e") is None
-    assert store.get(control_ns, "c") is not None
-
-    # search omits it but returns the control.
-    assert store.search(expired_ns) == []
-    assert [i.key for i in store.search(control_ns)] == ["c"]
-
-    # list_namespaces drops the expired-only namespace, keeps the control.
-    namespaces = store.list_namespaces(prefix=("omit",))
-    assert expired_ns not in namespaces
-    assert control_ns in namespaces
-
-
-@pytest.mark.parametrize("omit", [None, False], ids=["default", "explicit-false"])
-def test_omit_expired_disabled_preserves_expired_rows(
-    store: PostgresStore, omit
-) -> None:
-    store.stop_ttl_sweeper()
-    if omit is not None:
-        store.ttl_config["omit_expired"] = omit
-
-    ns = ("keep",)
-    store.put(ns, "k", {"data": "still-here"}, ttl=TTL_MINUTES)
-    _expire_now(store, ns, "k")
-
-    assert store.get(ns, "k", refresh_ttl=False) is not None
-    assert [i.key for i in store.search(ns, refresh_ttl=False)] == ["k"]
-    assert ns in store.list_namespaces(prefix=("keep",))
-
-
-def test_omit_expired_refresh_ttl_only_refreshes_live_rows(
-    store: PostgresStore,
-) -> None:
-    store.stop_ttl_sweeper()
-    store.ttl_config["omit_expired"] = True
-
-    ns = ("refresh",)
-    store.put(ns, "expired", {"n": 0}, ttl=TTL_MINUTES)
-    store.put(ns, "live_get", {"n": 1}, ttl=TTL_MINUTES)
-    store.put(ns, "live_search", {"n": 2}, ttl=TTL_MINUTES)
-    _expire_now(store, ns, "expired")
-
-    expired_before = _stored_expires_at(store, ns, "expired")
-    get_before = _stored_expires_at(store, ns, "live_get")
-    search_before = _stored_expires_at(store, ns, "live_search")
-
-    # refresh_ttl=True must NOT resurrect the expired row (via get or search)...
-    assert store.get(ns, "expired", refresh_ttl=True) is None
-    assert "expired" not in [i.key for i in store.search(ns, refresh_ttl=True)]
-    assert _stored_expires_at(store, ns, "expired") == expired_before
-
-    # ...but must still extend the live rows that were read.
-    assert store.get(ns, "live_get", refresh_ttl=True) is not None
-    assert _stored_expires_at(store, ns, "live_get") > get_before
-    assert _stored_expires_at(store, ns, "live_search") > search_before
-
-
-def test_omit_expired_search_pagination(store: PostgresStore) -> None:
-    store.stop_ttl_sweeper()
-    store.ttl_config["omit_expired"] = True
-
-    ns = ("page",)
-    for k in ("a", "b", "c"):
-        store.put(ns, k, {"k": k}, ttl=TTL_MINUTES)
-    store.put(ns, "expired", {"k": "x"}, ttl=TTL_MINUTES)
-    _expire_now(store, ns, "expired")
-
-    seconds_ago = {"a": 1, "expired": 2, "b": 3, "c": 4}
-    # updated_at DESC orders these a, expired, b, c, so the expired row sits inside
-    # the first limit=2 window. Correct (pre-LIMIT) filtering yields live pages
-    # [a, b] then [c]; post-LIMIT filtering would underfill page 1 to just [a].
-    with store._cursor() as cur:
-        for key, secs in seconds_ago.items():
-            cur.execute(
-                "UPDATE store SET updated_at = NOW() - (%s * INTERVAL '1 second') "
-                "WHERE prefix = %s AND key = %s",
-                (secs, ".".join(ns), key),
-            )
-
-    page1 = store.search(ns, limit=2, offset=0)
-    page2 = store.search(ns, limit=2, offset=2)
-    assert [i.key for i in page1] == ["a", "b"]
-    assert [i.key for i in page2] == ["c"]
-
-
 @pytest.mark.parametrize(
     "vector_type,distance_type",
     [
@@ -1151,16 +899,3 @@ def test_non_ascii(
         assert result3[0].key == "3"
         assert result4[0].key == "4"
         assert result5[0].key == "5"
-
-
-def test_namespace_labels_with_trailing_newline(store) -> None:
-    """Labels may contain newlines, and must not match a differently-named label."""
-    store.put(("users", "alice"), "k", {"v": 1})
-    store.put(("users", "alice\n"), "k", {"v": 2})
-
-    assert set(store.list_namespaces(suffix=["alice"], limit=100)) == {
-        ("users", "alice"),
-    }
-    assert set(store.list_namespaces(prefix=["users", "alice"], limit=100)) == {
-        ("users", "alice"),
-    }

libs/checkpoint-postgres/uv.lock

@@ -17,16 +17,16 @@ wheels = [
 
 [[package]]
 name = "anyio"
-version = "4.14.2"
+version = "4.13.0"
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     { name = "idna" },
     { name = "typing-extensions", marker = "python_full_version < '3.13'" },
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 [[package]]
@@ -138,11 +138,11 @@ wheels = [
 
 [[package]]
 name = "codespell"
-version = "2.4.3"
+version = "2.4.2"
 source = { registry = "https://pypi.org/simple" }
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+    { url = "https://files.pythonhosted.org/packages/42/a1/52fa05533e95fe45bcc09bcf8a503874b1c08f221a4e35608017e0938f55/codespell-2.4.2-py3-none-any.whl", hash = "sha256:97e0c1060cf46bd1d5db89a936c98db8c2b804e1fdd4b5c645e82a1ec6b1f886", size = 353715, upload-time = "2026-03-05T18:10:41.398Z" },
 ]
 
 [[package]]
@@ -159,7 +159,7 @@ name = "exceptiongroup"
 version = "1.3.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "typing-extensions" },
+    { name = "typing-extensions", marker = "python_full_version < '3.13'" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/50/79/66800aadf48771f6b62f7eb014e352e5d06856655206165d775e675a02c9/exceptiongroup-1.3.1.tar.gz", hash = "sha256:8b412432c6055b0b7d14c310000ae93352ed6754f70fa8f7c34141f91c4e3219", size = 30371, upload-time = "2025-11-21T23:01:54.787Z" }
 wheels = [
@@ -244,7 +244,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.5.2"
+version = "1.4.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "jsonpatch" },
@@ -257,21 +257,21 @@ dependencies = [
     { name = "typing-extensions" },
     { name = "uuid-utils" },
 ]
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 [[package]]
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-version = "0.0.18"
+version = "0.0.15"
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     { name = "typing-extensions" },
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 [[package]]
@@ -322,36 +322,9 @@ test = [
     { name = "redis" },
 ]
 
-[[package]]
-name = "langgraph-checkpoint-conformance"
-version = "0.0.2"
-source = { editable = "../checkpoint-conformance" }
-dependencies = [
-    { name = "langgraph-checkpoint" },
-]
-
-[package.metadata]
-requires-dist = [{ name = "langgraph-checkpoint", editable = "../checkpoint" }]
-
-[package.metadata.requires-dev]
-dev = [
-    { name = "pytest" },
-    { name = "pytest-asyncio" },
-    { name = "ruff" },
-    { name = "ty" },
-]
-lint = [
-    { name = "ruff" },
-    { name = "ty" },
-]
-test = [
-    { name = "pytest" },
-    { name = "pytest-asyncio" },
-]
-
 [[package]]
 name = "langgraph-checkpoint-postgres"
-version = "3.1.1"
+version = "3.1.0"
 source = { editable = "." }
 dependencies = [
     { name = "langgraph-checkpoint" },
@@ -365,7 +338,6 @@ dev = [
     { name = "anyio" },
     { name = "codespell" },
     { name = "langgraph-checkpoint" },
-    { name = "langgraph-checkpoint-conformance" },
     { name = "psycopg", extra = ["binary"] },
     { name = "pytest" },
     { name = "pytest-asyncio" },
@@ -382,7 +354,6 @@ lint = [
 test = [
     { name = "anyio" },
     { name = "langgraph-checkpoint" },
-    { name = "langgraph-checkpoint-conformance" },
     { name = "psycopg", extra = ["binary"] },
     { name = "pytest" },
     { name = "pytest-asyncio" },
@@ -403,7 +374,6 @@ dev = [
     { name = "anyio" },
     { name = "codespell" },
     { name = "langgraph-checkpoint", editable = "../checkpoint" },
-    { name = "langgraph-checkpoint-conformance", editable = "../checkpoint-conformance" },
     { name = "psycopg", extras = ["binary"] },
     { name = "pytest" },
     { name = "pytest-asyncio" },
@@ -420,7 +390,6 @@ lint = [
 test = [
     { name = "anyio" },
     { name = "langgraph-checkpoint", editable = "../checkpoint" },
-    { name = "langgraph-checkpoint-conformance", editable = "../checkpoint-conformance" },
     { name = "psycopg", extras = ["binary"] },
     { name = "pytest" },
     { name = "pytest-asyncio" },
@@ -840,7 +809,7 @@ wheels = [
 
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+version = "9.0.3"
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@@ -851,9 +820,9 @@ dependencies = [
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 ]
 
 [[package]]

libs/checkpoint-sqlite/langgraph/checkpoint/sqlite/__init__.py

@@ -29,11 +29,6 @@ from langgraph.checkpoint.sqlite._delta import (
     build_delta_stage2_sql,
     step_walk_with_row,
 )
-from langgraph.checkpoint.sqlite._schema import (
-    ADD_WRITES_TASK_PATH_SQL,
-    DUPLICATE_COLUMN_ERROR,
-    HAS_WRITES_TASK_PATH_SQL,
-)
 from langgraph.checkpoint.sqlite.utils import search_where
 
 _AIO_ERROR_MSG = (
@@ -82,7 +77,7 @@ class SqliteSaver(BaseCheckpointSaver[str]):
         >>> result = graph.invoke(3, config)
         >>> graph.get_state(config)
         StateSnapshot(values=4, next=(), config={'configurable': {'thread_id': '1', 'checkpoint_ns': '', 'checkpoint_id': '0c62ca34-ac19-445d-bbb0-5b4984975b2a'}}, parent_config=None)
-    """
+    """  # noqa
 
     conn: sqlite3.Connection
     is_setup: bool
@@ -159,7 +154,6 @@ class SqliteSaver(BaseCheckpointSaver[str]):
                 checkpoint_ns TEXT NOT NULL DEFAULT '',
                 checkpoint_id TEXT NOT NULL,
                 task_id TEXT NOT NULL,
-                task_path TEXT NOT NULL DEFAULT '',
                 idx INTEGER NOT NULL,
                 channel TEXT NOT NULL,
                 type TEXT,
@@ -168,12 +162,6 @@ class SqliteSaver(BaseCheckpointSaver[str]):
             );
             """
         )
-        if not self.conn.execute(HAS_WRITES_TASK_PATH_SQL).fetchone():
-            try:
-                self.conn.execute(ADD_WRITES_TASK_PATH_SQL)
-            except sqlite3.OperationalError as exc:
-                if DUPLICATE_COLUMN_ERROR not in str(exc):
-                    raise
 
         self.is_setup = True
 
@@ -234,7 +222,7 @@ class SqliteSaver(BaseCheckpointSaver[str]):
             >>> checkpoint_tuple = memory.get_tuple(config)
             >>> print(checkpoint_tuple)
             CheckpointTuple(...)
-        """
+        """  # noqa
         checkpoint_ns = config["configurable"].get("checkpoint_ns", "")
         with self.cursor(transaction=False) as cur:
             # find the latest checkpoint for the thread_id
@@ -472,9 +460,9 @@ class SqliteSaver(BaseCheckpointSaver[str]):
             task_path: Path of the task creating the writes.
         """
         query = (
-            "INSERT OR REPLACE INTO writes (thread_id, checkpoint_ns, checkpoint_id, task_id, task_path, idx, channel, type, value) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)"
+            "INSERT OR REPLACE INTO writes (thread_id, checkpoint_ns, checkpoint_id, task_id, idx, channel, type, value) VALUES (?, ?, ?, ?, ?, ?, ?, ?)"
             if all(w[0] in WRITES_IDX_MAP for w in writes)
-            else "INSERT OR IGNORE INTO writes (thread_id, checkpoint_ns, checkpoint_id, task_id, task_path, idx, channel, type, value) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)"
+            else "INSERT OR IGNORE INTO writes (thread_id, checkpoint_ns, checkpoint_id, task_id, idx, channel, type, value) VALUES (?, ?, ?, ?, ?, ?, ?, ?)"
         )
         with self.cursor() as cur:
             cur.executemany(
@@ -485,7 +473,6 @@ class SqliteSaver(BaseCheckpointSaver[str]):
                         str(config["configurable"]["checkpoint_ns"]),
                         str(config["configurable"]["checkpoint_id"]),
                         task_id,
-                        task_path,
                         WRITES_IDX_MAP.get(channel, idx),
                         channel,
                         *self.serde.dumps_typed(value),
@@ -581,7 +568,7 @@ class SqliteSaver(BaseCheckpointSaver[str]):
                     )
                 cur.execute(stage2_sql, stage2_params)
                 stage2_rows = cast(
-                    "list[tuple[str, str, str, int, str, bytes, str]]", cur.fetchall()
+                    "list[tuple[str, str, str, int, str, bytes]]", cur.fetchall()
                 )
             else:
                 stage2_rows = []

libs/checkpoint-sqlite/langgraph/checkpoint/sqlite/_delta.py

@@ -57,7 +57,7 @@ def build_delta_stage2_sql(*, chain_lens: Sequence[int]) -> str:
     for n in chain_lens:
         cid_placeholders = ",".join("?" * n)
         branches.append(
-            "SELECT checkpoint_id, channel, task_id, idx, type, value, task_path "
+            "SELECT checkpoint_id, channel, task_id, idx, type, value "
             "FROM writes "
             "WHERE thread_id = ? AND checkpoint_ns = ? AND channel = ? "
             f"AND checkpoint_id IN ({cid_placeholders})"
@@ -130,33 +130,29 @@ def build_delta_channels_writes_history(
     chain_by_ch: Mapping[str, list[str]],
     seed_val_by_ch: Mapping[str, Any],
     seeded: set[str],
-    stage2_rows: Sequence[tuple[str, str, str, int, str, bytes, str]],
+    stage2_rows: Sequence[tuple[str, str, str, int, str, bytes]],
     serde: Any,
 ) -> dict[str, DeltaChannelHistory]:
     """Demux stage-2 rows per channel; produce per-channel histories.
 
-    Stage-2 rows are
-    `(checkpoint_id, channel, task_id, idx, type, value, task_path)`.
-    Final write order is oldest→newest globally and
-    `(task_path, task_id, idx)` within a checkpoint, matching the contract
-    on `DeltaChannelHistory.writes` — that is the order `apply_writes`
-    applied them in live, which `(task_id, idx)` alone does not recover
-    for parallel tasks writing one channel in a single super-step.
+    Stage-2 rows are `(checkpoint_id, channel, task_id, idx, type, value)`.
+    Final write order is oldest→newest globally and `(task_id, idx)` within
+    a checkpoint, matching the contract on `DeltaChannelHistory.writes`.
 
     `seed` is omitted when the walk reached a true root with no snapshot
     found (channel never entered `seeded`); consumers treat absence as
     "start empty".
     """
-    writes_by_ch_by_cid: dict[
-        str, dict[str, list[tuple[str, bytes, str, int, str]]]
-    ] = {ch: {} for ch in channels}
-    for cid, ch, task_id, idx, type_tag, value_blob, task_path in stage2_rows:
+    writes_by_ch_by_cid: dict[str, dict[str, list[tuple[str, bytes, str, int]]]] = {
+        ch: {} for ch in channels
+    }
+    for cid, ch, task_id, idx, type_tag, value_blob in stage2_rows:
         writes_by_ch_by_cid.setdefault(ch, {}).setdefault(cid, []).append(
-            (type_tag, value_blob, task_id, idx, task_path)
+            (type_tag, value_blob, task_id, idx)
         )
     for cid_map in writes_by_ch_by_cid.values():
         for ws in cid_map.values():
-            ws.sort(key=lambda w: (w[4], w[2], w[3]))
+            ws.sort(key=lambda w: (w[2], w[3]))
 
     result: dict[str, DeltaChannelHistory] = {}
     for ch in channels:
@@ -165,7 +161,7 @@ def build_delta_channels_writes_history(
         collected: list[PendingWrite] = []
         # Chain is newest-first; iterate oldest-first for the public order.
         for cid in reversed(chain_cids):
-            for type_tag, value_blob, task_id, _idx, _path in cid_writes.get(cid, []):
+            for type_tag, value_blob, task_id, _idx in cid_writes.get(cid, []):
                 collected.append(
                     (task_id, ch, serde.loads_typed((type_tag, value_blob)))
                 )

libs/checkpoint-sqlite/langgraph/checkpoint/sqlite/_schema.py

@@ -1,37 +0,0 @@
-"""Additive schema migrations shared by the sqlite savers.
-
-`SqliteSaver.setup` and `AsyncSqliteSaver.setup` create their tables with
-`CREATE TABLE IF NOT EXISTS`, which leaves a database created by an earlier
-version on the earlier schema. Sqlite has no `ADD COLUMN IF NOT EXISTS`
-(the postgres savers rely on that form), and re-running a plain
-`ALTER TABLE ... ADD COLUMN` raises `OperationalError: duplicate column
-name`. So each migration pairs an `ALTER` with a probe against
-`pragma_table_info` that tells us whether this database still needs it.
-
-Databases created fresh already carry every column from the `CREATE TABLE`
-statements, so the probe finds the column and the `ALTER` never runs.
-"""
-
-from __future__ import annotations
-
-# `writes.task_path` records the path of the task that produced a write.
-# Delta channel replay orders a checkpoint's writes by
-# (task_path, task_id, idx) to reproduce the order `apply_writes` applied
-# them in live; without the column, replay can only order by
-# (task_id, idx), which permutes writes made by parallel tasks in the same
-# super-step. Rows written before this migration keep the `''` default and
-# so sort ahead of path-carrying rows within their checkpoint.
-HAS_WRITES_TASK_PATH_SQL = (
-    "SELECT 1 FROM pragma_table_info('writes') WHERE name = 'task_path'"
-)
-
-ADD_WRITES_TASK_PATH_SQL = (
-    "ALTER TABLE writes ADD COLUMN task_path TEXT NOT NULL DEFAULT ''"
-)
-
-# Substring of the `OperationalError` sqlite raises when the column is already
-# there. The probe above is not enough on its own: two connections opening the
-# same file can both pass it and both issue the `ALTER`, and unlike
-# `CREATE TABLE IF NOT EXISTS` the loser of that race raises. Callers treat it
-# as success — whoever won did the same migration.
-DUPLICATE_COLUMN_ERROR = "duplicate column name"

libs/checkpoint-sqlite/langgraph/checkpoint/sqlite/aio.py

@@ -30,11 +30,6 @@ from langgraph.checkpoint.sqlite._delta import (
     build_delta_stage2_sql,
     step_walk_with_row,
 )
-from langgraph.checkpoint.sqlite._schema import (
-    ADD_WRITES_TASK_PATH_SQL,
-    DUPLICATE_COLUMN_ERROR,
-    HAS_WRITES_TASK_PATH_SQL,
-)
 from langgraph.checkpoint.sqlite.utils import search_where
 
 T = TypeVar("T", bound=Callable)
@@ -217,7 +212,7 @@ class AsyncSqliteSaver(BaseCheckpointSaver[str]):
         while True:
             try:
                 yield asyncio.run_coroutine_threadsafe(
-                    anext(aiter_),  # type: ignore[arg-type]
+                    anext(aiter_),  # type: ignore[arg-type]  # noqa: F821
                     self.loop,
                 ).result()
             except StopAsyncIteration:
@@ -336,7 +331,6 @@ class AsyncSqliteSaver(BaseCheckpointSaver[str]):
                     checkpoint_ns TEXT NOT NULL DEFAULT '',
                     checkpoint_id TEXT NOT NULL,
                     task_id TEXT NOT NULL,
-                    task_path TEXT NOT NULL DEFAULT '',
                     idx INTEGER NOT NULL,
                     channel TEXT NOT NULL,
                     type TEXT,
@@ -347,16 +341,6 @@ class AsyncSqliteSaver(BaseCheckpointSaver[str]):
             ):
                 await self.conn.commit()
 
-            async with self.conn.execute(HAS_WRITES_TASK_PATH_SQL) as cur:
-                has_task_path = await cur.fetchone() is not None
-            if not has_task_path:
-                try:
-                    await self.conn.execute(ADD_WRITES_TASK_PATH_SQL)
-                except aiosqlite.OperationalError as exc:
-                    if DUPLICATE_COLUMN_ERROR not in str(exc):
-                        raise
-                await self.conn.commit()
-
             self.is_setup = True
 
     async def aget_tuple(self, config: RunnableConfig) -> CheckpointTuple | None:
@@ -592,9 +576,9 @@ class AsyncSqliteSaver(BaseCheckpointSaver[str]):
             task_path: Path of the task creating the writes.
         """
         query = (
-            "INSERT OR REPLACE INTO writes (thread_id, checkpoint_ns, checkpoint_id, task_id, task_path, idx, channel, type, value) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)"
+            "INSERT OR REPLACE INTO writes (thread_id, checkpoint_ns, checkpoint_id, task_id, idx, channel, type, value) VALUES (?, ?, ?, ?, ?, ?, ?, ?)"
             if all(w[0] in WRITES_IDX_MAP for w in writes)
-            else "INSERT OR IGNORE INTO writes (thread_id, checkpoint_ns, checkpoint_id, task_id, task_path, idx, channel, type, value) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)"
+            else "INSERT OR IGNORE INTO writes (thread_id, checkpoint_ns, checkpoint_id, task_id, idx, channel, type, value) VALUES (?, ?, ?, ?, ?, ?, ?, ?)"
         )
         await self.setup()
         async with self.lock, self.conn.cursor() as cur:
@@ -606,7 +590,6 @@ class AsyncSqliteSaver(BaseCheckpointSaver[str]):
                         str(config["configurable"]["checkpoint_ns"]),
                         str(config["configurable"]["checkpoint_id"]),
                         task_id,
-                        task_path,
                         WRITES_IDX_MAP.get(channel, idx),
                         channel,
                         *self.serde.dumps_typed(value),
@@ -698,7 +681,7 @@ class AsyncSqliteSaver(BaseCheckpointSaver[str]):
                     )
                 await cur.execute(stage2_sql, stage2_params)
                 stage2_rows = cast(
-                    "list[tuple[str, str, str, int, str, bytes, str]]",
+                    "list[tuple[str, str, str, int, str, bytes]]",
                     await cur.fetchall(),
                 )
             else:

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

@@ -24,13 +24,11 @@ from langgraph.store.base.batch import AsyncBatchedBaseStore
 
 from langgraph.store.sqlite.base import (
     _PLACEHOLDER,
-    NS_MATCH_FUNCTION,
     BaseSqliteStore,
     SqliteIndexConfig,
     _decode_ns_text,
     _ensure_index_config,
     _group_ops,
-    _namespace_match,
     _row_to_item,
     _row_to_search_item,
 )
@@ -152,13 +150,6 @@ class AsyncSqliteStore(AsyncBatchedBaseStore, BaseSqliteStore):
             if self.is_setup:
                 return
 
-            # list_namespaces needs segment-aware matching, which SQLite cannot
-            # express in LIKE or GLOB. Registered here rather than in __init__
-            # because aiosqlite's create_function is a coroutine.
-            await self.conn.create_function(
-                NS_MATCH_FUNCTION, 2, _namespace_match, deterministic=True
-            )
-
             # Create migrations table if it doesn't exist
             await self.conn.execute(
                 """

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

@@ -93,74 +93,12 @@ class SqliteIndexConfig(IndexConfig):
     pass
 
 
-NS_MATCH_FUNCTION = "_langgraph_namespace_match"
-"""SQLite user function backing segment-aware namespace matching.
-
-Registered under a private name rather than overriding `REGEXP`, so a caller's
-own `REGEXP` is left untouched.
-"""
-
-
-def _namespace_match(prefix: str | None, pattern: str) -> int:
-    """Backing implementation of `NS_MATCH_FUNCTION`."""
-    if prefix is None:
-        return 0
-    return 1 if re.search(pattern, prefix) else 0
-
-
-def _escape_glob_literal(text: str) -> str:
-    """Escape GLOB metacharacters so `text` is matched literally.
-
-    GLOB has no `ESCAPE` clause, so metacharacters are wrapped in a character
-    class instead. `]` is literal outside a class and needs no escaping.
-    """
-    return text.replace("[", "[[]").replace("*", "[*]").replace("?", "[?]")
-
-
-def _namespace_prefix_condition(
-    namespace_prefix: tuple[str, ...], column: str = "prefix"
-) -> tuple[str, tuple[str, ...]]:
-    """Build the SQL scoping a search to a namespace and its descendants.
-
-    Matches the namespace exactly or requires the `.` separator before any
-    remainder, so a prefix of `("foo",)` does not also match `("foobar",)`.
-
-    Uses GLOB rather than LIKE because SQLite's LIKE is case-insensitive for
-    ASCII, which would match `("FOO",)` for a prefix of `("foo",)` even though
-    `get`/`put`/`delete` compare with `=` and treat those as distinct.
-
-    An empty prefix is unconstrained and matches every namespace.
-    """
-    if not namespace_prefix:
-        return "TRUE", ()
-    path = _namespace_to_text(namespace_prefix)
-    condition = f"({column} = ? OR {column} GLOB ?)"
-    return condition, (path, f"{_escape_glob_literal(path)}.*")
-
-
-def _namespace_match_pattern(path: tuple[str, ...], match_type: str) -> str:
-    """Build a regex matching the dot-joined prefix on whole namespace segments.
-
-    Needed because neither LIKE nor GLOB can express "any character except the
-    separator": GLOB has character classes but no quantifier, so `[^.]*` still
-    crosses `.`. Matches how `InMemoryStore` compares namespaces element-wise.
-
-    `*` matches exactly one segment. Prefix matches stay open-ended but must end
-    on a separator; suffix matches anchor at the end and begin on one.
-
-    Examples:
-        prefix ("uid", "*", "alice") -> ^uid\\.[^.]+\\.alice(\\.|\\Z)
-        suffix ("alice",)            -> (^|\\.)alice\\Z
-    """
-    segments = ("[^.]+" if part == "*" else re.escape(part) for part in path)
-    body = r"\.".join(segments)
-    if match_type == "suffix":
-        return rf"(^|\.){body}\Z"
-    return rf"^{body}(\.|\Z)"
-
-
-def _namespace_to_text(namespace: tuple[str, ...]) -> str:
+def _namespace_to_text(
+    namespace: tuple[str, ...], handle_wildcards: bool = False
+) -> str:
     """Convert namespace tuple to text string."""
+    if handle_wildcards:
+        namespace = tuple("%" if val == "*" else val for val in namespace)
     return ".".join(namespace)
 
 
@@ -523,11 +461,8 @@ class BaseSqliteStore:
                     else " AND " + " AND ".join(filter_conditions)
                 )
                 if op.namespace_prefix:
-                    ns_condition, ns_args_tuple = _namespace_prefix_condition(
-                        op.namespace_prefix, column="s.prefix"
-                    )
-                    prefix_filter_str = f"WHERE {ns_condition} {filter_str} "
-                    ns_args: Sequence = ns_args_tuple
+                    prefix_filter_str = f"WHERE s.prefix LIKE ? {filter_str} "
+                    ns_args: Sequence = (f"{_namespace_to_text(op.namespace_prefix)}%",)
                 else:
                     ns_args = ()
                     if filter_str:
@@ -568,15 +503,12 @@ class BaseSqliteStore:
                 ]
             # Regular search branch (no vector search)
             else:
-                ns_condition, ns_args_tuple = _namespace_prefix_condition(
-                    op.namespace_prefix
-                )
-                base_query = f"""
+                base_query = """
                     SELECT prefix, key, value, created_at, updated_at, expires_at, ttl_minutes, NULL as score
                     FROM store
-                    WHERE {ns_condition}
+                    WHERE prefix LIKE ?
                 """
-                params = list(ns_args_tuple)
+                params = [f"{_namespace_to_text(op.namespace_prefix)}%"]
 
                 if filter_conditions:
                     params.extend(filter_params)
@@ -617,28 +549,16 @@ class BaseSqliteStore:
 
             if op.match_conditions:
                 for cond in op.match_conditions:
-                    if cond.match_type in ("prefix", "suffix"):
-                        if not cond.path:
-                            # An empty path constrains nothing; skipping keeps it a
-                            # no-op rather than emitting a pattern that matches no
-                            # namespace at all.
-                            continue
-                        if cond.match_type == "prefix" and "*" not in cond.path:
-                            # Equivalent to the anchored pattern, but SQLite can
-                            # satisfy `=` and a trailing-wildcard GLOB from
-                            # store_prefix_idx. The user function is opaque to the
-                            # planner, so it would scan every row and call back
-                            # into Python for each one.
-                            condition, args = _namespace_prefix_condition(
-                                tuple(cond.path)
-                            )
-                            where_clauses.append(condition)
-                            params.extend(args)
-                        else:
-                            where_clauses.append(f"{NS_MATCH_FUNCTION}(prefix, ?) = 1")
-                            params.append(
-                                _namespace_match_pattern(cond.path, cond.match_type)
-                            )
+                    if cond.match_type == "prefix":
+                        where_clauses.append("prefix LIKE ?")
+                        params.append(
+                            f"{_namespace_to_text(cond.path, handle_wildcards=True)}%"
+                        )
+                    elif cond.match_type == "suffix":
+                        where_clauses.append("prefix LIKE ?")
+                        params.append(
+                            f"%{_namespace_to_text(cond.path, handle_wildcards=True)}"
+                        )
                     else:
                         logger.warning(
                             "Unknown match_type in list_namespaces: %s", cond.match_type
@@ -865,9 +785,6 @@ class SqliteStore(BaseSqliteStore, BaseStore):
         super().__init__()
         self._deserializer = deserializer
         self.conn = conn
-        # Registered here rather than in from_conn_string so a caller-supplied
-        # connection also gets it.
-        conn.create_function(NS_MATCH_FUNCTION, 2, _namespace_match, deterministic=True)
         self.lock = threading.Lock()
         self.is_setup = False
         self.index_config = index

libs/checkpoint-sqlite/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "langgraph-checkpoint-sqlite"
-version = "3.1.1"
+version = "3.1.0"
 description = "Library with a SQLite implementation of LangGraph checkpoint saver."
 authors = []
 requires-python = ">=3.10"
@@ -30,7 +30,6 @@ test = [
   "pytest-mock",
   "pytest-watcher",
   "langgraph-checkpoint",
-  "langgraph-checkpoint-conformance",
   "pytest-retry>=1.7.0",
 ]
 lint = [
@@ -48,7 +47,6 @@ default-groups = ['dev']
 
 [tool.uv.sources]
 langgraph-checkpoint = { path = "../checkpoint", editable = true }
-langgraph-checkpoint-conformance = { path = "../checkpoint-conformance", editable = true }
 
 [tool.hatch.build.targets.wheel]
 include = ["langgraph"]
@@ -64,8 +62,6 @@ lint.select = [
   "UP", # pyupgrade
   "B",  # flake8-bugbear
   "I",  # isort
-  "PLC0415",  # import-outside-top-level
-  "RUF100",  # unused noqa directive
   "UP", # pyupgrade
 ]
 lint.ignore = ["E501", "B008"]

libs/checkpoint-sqlite/tests/test_async_store.py

@@ -716,32 +716,3 @@ async def test_search_items(
         for ns in test_namespaces:
             key = f"item_{ns[-1]}"
             await store.adelete(ns, key)
-
-
-async def test_async_namespace_segment_boundary(store: AsyncSqliteStore) -> None:
-    """Segment-aware scoping on the async path.
-
-    Also covers that the namespace-match SQLite function is registered on the
-    async connection -- aiosqlite's create_function is a coroutine, so it is
-    registered in setup() rather than __init__.
-    """
-    for namespace in [
-        ("foo",),
-        ("foo", "child"),
-        ("foobar",),
-        ("uid", "users", "alice"),
-        ("uid", "users", "malice"),
-        ("user_1",),
-        ("userX1",),
-    ]:
-        await store.aput(namespace, "k", {"v": 1})
-
-    found = {item.namespace for item in await store.asearch(("foo",), limit=100)}
-    assert found == {("foo",), ("foo", "child")}
-
-    found = {item.namespace for item in await store.asearch(("user_1",), limit=100)}
-    assert found == {("user_1",)}
-
-    assert set(await store.alist_namespaces(suffix=["alice"], limit=100)) == {
-        ("uid", "users", "alice"),
-    }

libs/checkpoint-sqlite/tests/test_conformance_delta.py

@@ -3,14 +3,21 @@
 from __future__ import annotations
 
 import pytest
-from langgraph.checkpoint.conformance import validate
-from langgraph.checkpoint.conformance.initializer import checkpointer_test
 
-from langgraph.checkpoint.sqlite.aio import AsyncSqliteSaver
+pytest.importorskip(
+    "langgraph.checkpoint.conformance",
+    reason="langgraph-checkpoint-conformance not installed",
+)
+pytest.importorskip("aiosqlite", reason="aiosqlite not installed")
 
 
 @pytest.mark.asyncio
 async def test_delta_channel_conformance():
+    from langgraph.checkpoint.conformance import validate
+    from langgraph.checkpoint.conformance.initializer import checkpointer_test
+
+    from langgraph.checkpoint.sqlite.aio import AsyncSqliteSaver
+
     @checkpointer_test(name="AsyncSqliteSaver")
     async def sqlite_saver():
         async with AsyncSqliteSaver.from_conn_string(":memory:") as saver:

libs/checkpoint-sqlite/tests/test_delta_channel_migration.py

@@ -29,13 +29,13 @@ pytest.importorskip("langgraph.channels.delta", reason="langgraph core not insta
 pytest.importorskip("langgraph.channels.binop", reason="langgraph core not installed")
 pytest.importorskip("langgraph.graph", reason="langgraph core not installed")
 
-from langgraph.channels.binop import BinaryOperatorAggregate  # type: ignore[import-untyped]  # noqa: I001
-from langgraph.channels.delta import DeltaChannel  # type: ignore[import-untyped]
-from langgraph.graph import END, START, StateGraph  # type: ignore[import-untyped]
-from typing_extensions import TypedDict
+from langgraph.channels.binop import BinaryOperatorAggregate  # type: ignore[import-untyped]  # noqa: E402,I001
+from langgraph.channels.delta import DeltaChannel  # type: ignore[import-untyped]  # noqa: E402
+from langgraph.graph import END, START, StateGraph  # type: ignore[import-untyped]  # noqa: E402
+from typing_extensions import TypedDict  # noqa: E402
 
-from langgraph.checkpoint.sqlite import SqliteSaver
-from langgraph.checkpoint.sqlite.aio import AsyncSqliteSaver
+from langgraph.checkpoint.sqlite import SqliteSaver  # noqa: E402
+from langgraph.checkpoint.sqlite.aio import AsyncSqliteSaver  # noqa: E402
 
 pytestmark = pytest.mark.anyio
 

libs/checkpoint-sqlite/tests/test_get_delta_channel_history.py

@@ -32,13 +32,13 @@ from langchain_core.runnables import RunnableConfig
 pytest.importorskip("langgraph.channels.delta", reason="langgraph core not installed")
 pytest.importorskip("langgraph.graph", reason="langgraph core not installed")
 
-from langgraph.channels.delta import DeltaChannel  # type: ignore[import-untyped]  # noqa: I001
-from langgraph.checkpoint.serde.types import _DeltaSnapshot
-from langgraph.graph import END, START, StateGraph  # type: ignore[import-untyped]
-from typing_extensions import TypedDict
+from langgraph.channels.delta import DeltaChannel  # type: ignore[import-untyped]  # noqa: E402,I001
+from langgraph.checkpoint.serde.types import _DeltaSnapshot  # noqa: E402
+from langgraph.graph import END, START, StateGraph  # type: ignore[import-untyped]  # noqa: E402
+from typing_extensions import TypedDict  # noqa: E402
 
-from langgraph.checkpoint.sqlite import SqliteSaver
-from langgraph.checkpoint.sqlite.aio import AsyncSqliteSaver
+from langgraph.checkpoint.sqlite import SqliteSaver  # noqa: E402
+from langgraph.checkpoint.sqlite.aio import AsyncSqliteSaver  # noqa: E402
 
 pytestmark = pytest.mark.anyio
 

libs/checkpoint-sqlite/tests/test_store.py

@@ -1,11 +1,7 @@
-import math
 import os
-import random
 import re
 import tempfile
-import time
 import uuid
-from collections import Counter, defaultdict
 from collections.abc import Generator, Iterable
 from contextlib import contextmanager
 from typing import Any, Literal, cast
@@ -22,13 +18,7 @@ from langgraph.store.base import (
 )
 
 from langgraph.store.sqlite import SqliteStore
-from langgraph.store.sqlite.base import (
-    NS_MATCH_FUNCTION,
-    BaseSqliteStore,
-    SqliteIndexConfig,
-    _escape_glob_literal,
-    _namespace_match_pattern,
-)
+from langgraph.store.sqlite.base import SqliteIndexConfig
 
 
 # Local embeddings implementation for testing vector search
@@ -37,6 +27,10 @@ class CharacterEmbeddings(Embeddings):
 
     def __init__(self, dims: int = 50, seed: int = 42):
         """Initialize with embedding dimensions and random seed."""
+        import math
+        import random
+        from collections import defaultdict
+
         self._rng = random.Random(seed)
         self.dims = dims
         # Create projection vector for each character lazily
@@ -48,6 +42,9 @@ class CharacterEmbeddings(Embeddings):
 
     def _embed_one(self, text: str) -> list[float]:
         """Embed a single text."""
+        import math
+        from collections import Counter
+
         counts = Counter(text)
         total = sum(counts.values())
 
@@ -335,6 +332,8 @@ class TestSqliteStore:
 
             # Test update
             # Small delay to ensure the updated timestamp is different
+            import time
+
             time.sleep(0.01)
 
             updated_value = {"title": "Updated Document", "content": "Hello, Updated!"}
@@ -1230,208 +1229,3 @@ def test_non_ascii(
         assert result3[0].key == "3"
         assert result4[0].key == "4"
         assert result5[0].key == "5"
-
-
-def test_escape_glob_literal() -> None:
-    assert _escape_glob_literal("users.alice") == "users.alice"
-    # "_" and "%" are LIKE wildcards but literal in GLOB, so they are left alone.
-    assert _escape_glob_literal("user_1") == "user_1"
-    assert _escape_glob_literal("100%") == "100%"
-    assert _escape_glob_literal("a*b") == "a[*]b"
-    assert _escape_glob_literal("a?b") == "a[?]b"
-    assert _escape_glob_literal("a[b") == "a[[]b"
-
-
-def test_namespace_match_pattern() -> None:
-    assert _namespace_match_pattern(("foo",), "prefix") == r"^foo(\.|\Z)"
-    assert (
-        _namespace_match_pattern(("uid", "*", "alice"), "prefix")
-        == r"^uid\.[^.]+\.alice(\.|\Z)"
-    )
-    assert _namespace_match_pattern(("alice",), "suffix") == r"(^|\.)alice\Z"
-
-
-def test_search_namespace_segment_boundary(store: SqliteStore) -> None:
-    """Prefix scoping must stop at namespace segment boundaries.
-
-    Namespaces are stored dot-joined, so matching the raw text also returns
-    siblings sharing leading characters.
-    """
-    for namespace in [
-        ("foo",),
-        ("foo", "child"),
-        ("foo", "child", "deep"),
-        ("foobar",),
-        ("foobar", "baz"),
-        ("foo2",),
-    ]:
-        store.put(namespace, "k", {"v": 1})
-
-    def _namespaces(prefix: tuple[str, ...]) -> set[tuple[str, ...]]:
-        return {item.namespace for item in store.search(prefix, limit=100)}
-
-    assert _namespaces(("foo",)) == {
-        ("foo",),
-        ("foo", "child"),
-        ("foo", "child", "deep"),
-    }
-    # The sibling scope is independent, not merely narrower.
-    assert _namespaces(("foobar",)) == {("foobar",), ("foobar", "baz")}
-    assert _namespaces(("foo2",)) == {("foo2",)}
-    assert _namespaces(("fo",)) == set()
-
-
-def test_search_namespace_wildcard_chars_are_literal(store: SqliteStore) -> None:
-    """LIKE and GLOB metacharacters in labels must be matched literally."""
-    for namespace in [
-        ("user_1",),
-        ("user_1", "child"),
-        ("userX1",),
-        ("a%b",),
-        ("axxb",),
-        ("star*",),
-        ("starX",),
-    ]:
-        store.put(namespace, "k", {"v": 1})
-
-    def _namespaces(prefix: tuple[str, ...]) -> set[tuple[str, ...]]:
-        return {item.namespace for item in store.search(prefix, limit=100)}
-
-    # Also asserts each namespace still matches itself, which catches escaping
-    # the equality arm by mistake.
-    assert _namespaces(("user_1",)) == {("user_1",), ("user_1", "child")}
-    assert _namespaces(("a%b",)) == {("a%b",)}
-    assert _namespaces(("star*",)) == {("star*",)}
-
-
-def test_search_namespace_is_case_sensitive(store: SqliteStore) -> None:
-    """Search must agree with get/put, which compare namespaces with `=`.
-
-    SQLite's LIKE is case-insensitive for ASCII, so matching with it conflated
-    namespaces that every other operation treats as distinct.
-    """
-    store.put(("Foo",), "k", {"v": "upper"})
-    store.put(("foo",), "k", {"v": "lower"})
-
-    assert {item.namespace for item in store.search(("foo",), limit=100)} == {("foo",)}
-    assert {item.namespace for item in store.search(("Foo",), limit=100)} == {("Foo",)}
-
-
-def test_list_namespaces_segment_boundary(store: SqliteStore) -> None:
-    for namespace in [
-        ("foo",),
-        ("foo", "child"),
-        ("foobar",),
-        ("foobar", "baz"),
-        ("uid", "users", "alice"),
-        ("uid", "users", "malice"),
-        ("uid", "a", "b", "alice"),
-    ]:
-        store.put(namespace, "k", {"v": 1})
-
-    assert set(store.list_namespaces(prefix=["foo"], limit=100)) == {
-        ("foo",),
-        ("foo", "child"),
-    }
-    # Suffix must align to a segment: "malice" does not end with the "alice"
-    # segment.
-    assert set(store.list_namespaces(suffix=["alice"], limit=100)) == {
-        ("uid", "users", "alice"),
-        ("uid", "a", "b", "alice"),
-    }
-    # "*" spans exactly one segment.
-    assert set(store.list_namespaces(prefix=["uid", "*", "alice"], limit=100)) == {
-        ("uid", "users", "alice"),
-    }
-    # Prefix matching stays open-ended across depth.
-    assert set(store.list_namespaces(prefix=["uid"], limit=100)) == {
-        ("uid", "users", "alice"),
-        ("uid", "users", "malice"),
-        ("uid", "a", "b", "alice"),
-    }
-
-
-def test_search_empty_prefix_is_unconstrained(store: SqliteStore) -> None:
-    """An empty prefix constrains nothing and must return every namespace."""
-    for namespace in [("a",), ("b", "c"), ("d", "e", "f")]:
-        store.put(namespace, "k", {"v": 1})
-
-    assert {item.namespace for item in store.search((), limit=100)} == {
-        ("a",),
-        ("b", "c"),
-        ("d", "e", "f"),
-    }
-
-
-def test_namespace_labels_with_trailing_newline(store: SqliteStore) -> None:
-    """Labels may contain newlines, and must not match a differently-named label.
-
-    Python's `$` also matches just before a trailing newline, so the patterns use
-    `\\Z` to anchor at the true end of the string.
-    """
-    store.put(("users", "alice"), "k", {"v": 1})
-    store.put(("users", "alice\n"), "k", {"v": 2})
-
-    assert set(store.list_namespaces(suffix=["alice"], limit=100)) == {
-        ("users", "alice"),
-    }
-    assert set(store.list_namespaces(prefix=["users", "alice"], limit=100)) == {
-        ("users", "alice"),
-    }
-
-
-def test_list_namespaces_prefix_uses_indexable_condition() -> None:
-    """Plain prefixes must use the indexable condition, not the match function.
-
-    A user function is opaque to the query planner, so it scans every row and
-    calls back into Python for each one. Only suffix and wildcard paths, which
-    no SQLite operator can express, need it.
-    """
-    store = BaseSqliteStore()
-
-    def where(match_type: str, path: tuple[str, ...]) -> str:
-        op = ListNamespacesOp(
-            match_conditions=(MatchCondition(match_type=match_type, path=path),),
-            max_depth=None,
-            limit=10,
-            offset=0,
-        )
-        query, _ = store._get_batch_list_namespaces_queries([(0, op)])[0]
-        return " ".join(query.split())
-
-    assert "GLOB" in where("prefix", ("uid", "users"))
-    assert NS_MATCH_FUNCTION not in where("prefix", ("uid", "users"))
-    # A label that merely contains "*" is not the wildcard.
-    assert "GLOB" in where("prefix", ("star*",))
-    # Wildcard and suffix cannot be expressed by GLOB, so they keep the function.
-    assert NS_MATCH_FUNCTION in where("prefix", ("uid", "*", "alice"))
-    assert NS_MATCH_FUNCTION in where("suffix", ("alice",))
-
-
-def test_list_namespaces_metacharacter_labels(store: SqliteStore) -> None:
-    """Metacharacters in labels are literal on both matching paths.
-
-    Plain prefixes take the `= OR GLOB` condition and wildcard/suffix paths take
-    the regex function, so escaping has to hold in two different syntaxes.
-    """
-    pairs = [
-        ("star*", "starX"),
-        ("q?m", "qXm"),
-        ("br[ack]et", "brXacXket"),
-        ("user_1", "userX1"),
-        ("a%b", "axxb"),
-        ("plus+", "plusX"),
-    ]
-    for label, decoy in pairs:
-        store.put((label,), "k", {"v": 1})
-        store.put((decoy,), "k", {"v": 1})
-        store.put((label, "child"), "k", {"v": 1})
-
-    for label, decoy in pairs:
-        found = set(store.list_namespaces(prefix=[label], limit=100))
-        assert found == {(label,), (label, "child")}
-        # The decoy differs only where the metacharacter would have matched.
-        assert (decoy,) not in found
-        assert set(store.list_namespaces(prefix=[label, "child"], limit=100)) == {
-            (label, "child"),
-        }

libs/checkpoint-sqlite/tests/test_writes_task_path_migration.py

@@ -1,214 +0,0 @@
-"""Tests for the additive `writes.task_path` migration (#8382).
-
-`task_path` records the path of the task that produced a write, so delta
-channel replay can restore the order `apply_writes` applied a super-step's
-writes in. The sqlite savers previously accepted `task_path` on `put_writes`
-and dropped it, so the column has to be added to databases created by earlier
-versions as well as to fresh ones.
-
-Sqlite has no `ADD COLUMN IF NOT EXISTS`, so `setup()` probes
-`pragma_table_info` before issuing the `ALTER` — these tests pin that the
-probe makes the migration both effective and repeatable.
-"""
-
-from __future__ import annotations
-
-import sqlite3
-from pathlib import Path
-
-import aiosqlite
-import pytest
-from langgraph.checkpoint.base import empty_checkpoint
-
-from langgraph.checkpoint.sqlite import SqliteSaver
-from langgraph.checkpoint.sqlite._schema import ADD_WRITES_TASK_PATH_SQL
-from langgraph.checkpoint.sqlite.aio import AsyncSqliteSaver
-
-# The `writes` table as created before `task_path` existed.
-LEGACY_SCHEMA = """
-CREATE TABLE checkpoints (
-    thread_id TEXT NOT NULL,
-    checkpoint_ns TEXT NOT NULL DEFAULT '',
-    checkpoint_id TEXT NOT NULL,
-    parent_checkpoint_id TEXT,
-    type TEXT,
-    checkpoint BLOB,
-    metadata BLOB,
-    PRIMARY KEY (thread_id, checkpoint_ns, checkpoint_id)
-);
-CREATE TABLE writes (
-    thread_id TEXT NOT NULL,
-    checkpoint_ns TEXT NOT NULL DEFAULT '',
-    checkpoint_id TEXT NOT NULL,
-    task_id TEXT NOT NULL,
-    idx INTEGER NOT NULL,
-    channel TEXT NOT NULL,
-    type TEXT,
-    value BLOB,
-    PRIMARY KEY (thread_id, checkpoint_ns, checkpoint_id, task_id, idx)
-);
-"""
-
-
-def _write_legacy_db(path: Path) -> None:
-    conn = sqlite3.connect(path)
-    try:
-        conn.executescript(LEGACY_SCHEMA)
-        conn.commit()
-    finally:
-        conn.close()
-
-
-def _columns(conn: sqlite3.Connection, table: str) -> list[str]:
-    return [row[1] for row in conn.execute(f"PRAGMA table_info({table})")]
-
-
-def test_fresh_database_has_task_path(tmp_path: Path) -> None:
-    with SqliteSaver.from_conn_string(str(tmp_path / "fresh.sqlite")) as saver:
-        saver.setup()
-        assert "task_path" in _columns(saver.conn, "writes")
-
-
-def test_legacy_database_gains_task_path(tmp_path: Path) -> None:
-    db = tmp_path / "legacy.sqlite"
-    _write_legacy_db(db)
-
-    with SqliteSaver.from_conn_string(str(db)) as saver:
-        saver.setup()
-        columns = _columns(saver.conn, "writes")
-
-    assert "task_path" in columns
-    # Existing columns are untouched — this is additive, not a table rebuild.
-    assert columns[:8] == [
-        "thread_id",
-        "checkpoint_ns",
-        "checkpoint_id",
-        "task_id",
-        "idx",
-        "channel",
-        "type",
-        "value",
-    ]
-
-
-def test_setup_is_repeatable_on_migrated_database(tmp_path: Path) -> None:
-    """A second `setup()` must not re-issue the `ALTER`.
-
-    Sqlite raises `duplicate column name` rather than ignoring it, so an
-    unguarded `ALTER` would break every reopen of a migrated database.
-    """
-    db = tmp_path / "legacy.sqlite"
-    _write_legacy_db(db)
-
-    with SqliteSaver.from_conn_string(str(db)) as saver:
-        saver.setup()
-        saver.is_setup = False
-        saver.setup()
-        assert "task_path" in _columns(saver.conn, "writes")
-
-    # And again through a fresh connection to the migrated file.
-    with SqliteSaver.from_conn_string(str(db)) as saver:
-        saver.setup()
-        assert "task_path" in _columns(saver.conn, "writes")
-
-
-def test_legacy_rows_keep_default_and_sort_first(tmp_path: Path) -> None:
-    """Rows predating the column read back as `''` and order ahead of paths.
-
-    `''` precedes every `task_path_str` output, which puts pre-migration
-    writes before path-carrying ones within their checkpoint instead of
-    interleaving them under a rule that never applied to them.
-    """
-    db = tmp_path / "legacy.sqlite"
-    _write_legacy_db(db)
-
-    conn = sqlite3.connect(db)
-    try:
-        conn.execute(
-            "INSERT INTO writes (thread_id, checkpoint_ns, checkpoint_id, task_id,"
-            " idx, channel, type, value) VALUES ('t', '', 'c', 'task', 0, 'ch',"
-            " 'null', X'')"
-        )
-        conn.commit()
-    finally:
-        conn.close()
-
-    with SqliteSaver.from_conn_string(str(db)) as saver:
-        saver.setup()
-        stored = saver.conn.execute("SELECT task_path FROM writes").fetchall()
-        assert stored == [("",)]
-
-        ordered = saver.conn.execute(
-            "SELECT task_path FROM writes ORDER BY task_path, task_id, idx"
-        ).fetchall()
-        assert ordered[0] == ("",)
-
-
-def test_setup_survives_losing_the_migration_race(
-    tmp_path: Path, monkeypatch: pytest.MonkeyPatch
-) -> None:
-    """`setup()` succeeds when another connection migrates first.
-
-    The `pragma_table_info` probe is not a lock. Two connections opening the
-    same file can both see the column missing, and whichever issues the `ALTER`
-    second gets `duplicate column name` — `ALTER TABLE ADD COLUMN` has no
-    `IF NOT EXISTS` form to fall back on, unlike the `CREATE TABLE`s above it.
-
-    Stubbing the probe to always report the column missing reproduces exactly
-    the losing interleaving (probe says absent, another connection adds it,
-    then we `ALTER`) without depending on thread timing.
-    """
-    db = tmp_path / "legacy.sqlite"
-    _write_legacy_db(db)
-
-    # Winner of the race: migrates the file out from under the saver below.
-    winner = sqlite3.connect(db)
-    try:
-        winner.execute(ADD_WRITES_TASK_PATH_SQL)
-        winner.commit()
-    finally:
-        winner.close()
-
-    monkeypatch.setattr(
-        "langgraph.checkpoint.sqlite.HAS_WRITES_TASK_PATH_SQL", "SELECT 1 WHERE 0"
-    )
-    with SqliteSaver.from_conn_string(str(db)) as loser:
-        loser.setup()
-        assert "task_path" in _columns(loser.conn, "writes")
-
-
-def test_put_writes_persists_task_path(tmp_path: Path) -> None:
-    with SqliteSaver.from_conn_string(str(tmp_path / "fresh.sqlite")) as saver:
-        config = saver.put(
-            {"configurable": {"thread_id": "t", "checkpoint_ns": ""}},
-            empty_checkpoint(),
-            {},
-            {},
-        )
-        saver.put_writes(config, [("ch", "v")], "task-1", "~__pregel_pull, node")
-
-        stored = saver.conn.execute("SELECT task_id, task_path FROM writes").fetchall()
-        assert stored == [("task-1", "~__pregel_pull, node")]
-
-
-@pytest.mark.asyncio
-async def test_async_saver_migrates_and_persists_task_path(tmp_path: Path) -> None:
-    db = tmp_path / "legacy.sqlite"
-    _write_legacy_db(db)
-
-    async with AsyncSqliteSaver.from_conn_string(str(db)) as saver:
-        await saver.setup()
-        config = await saver.aput(
-            {"configurable": {"thread_id": "t", "checkpoint_ns": ""}},
-            empty_checkpoint(),
-            {},
-            {},
-        )
-        await saver.aput_writes(config, [("ch", "v")], "task-1", "~__pregel_pull, node")
-        # Idempotent for the async saver too.
-        saver.is_setup = False
-        await saver.setup()
-
-    async with aiosqlite.connect(db) as conn:
-        async with conn.execute("SELECT task_id, task_path FROM writes") as cur:
-            assert await cur.fetchall() == [("task-1", "~__pregel_pull, node")]

libs/checkpoint-sqlite/uv.lock

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 [[package]]
@@ -168,7 +168,7 @@ name = "exceptiongroup"
 version = "1.3.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "typing-extensions" },
+    { name = "typing-extensions", marker = "python_full_version < '3.13'" },
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@@ -253,7 +253,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.5.2"
+version = "1.4.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "jsonpatch" },
@@ -266,21 +266,21 @@ dependencies = [
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-version = "0.0.18"
+version = "0.0.15"
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 [[package]]
@@ -331,36 +331,9 @@ test = [
     { name = "redis" },
 ]
 
-[[package]]
-name = "langgraph-checkpoint-conformance"
-version = "0.0.2"
-source = { editable = "../checkpoint-conformance" }
-dependencies = [
-    { name = "langgraph-checkpoint" },
-]
-
-[package.metadata]
-requires-dist = [{ name = "langgraph-checkpoint", editable = "../checkpoint" }]
-
-[package.metadata.requires-dev]
-dev = [
-    { name = "pytest" },
-    { name = "pytest-asyncio" },
-    { name = "ruff" },
-    { name = "ty" },
-]
-lint = [
-    { name = "ruff" },
-    { name = "ty" },
-]
-test = [
-    { name = "pytest" },
-    { name = "pytest-asyncio" },
-]
-
 [[package]]
 name = "langgraph-checkpoint-sqlite"
-version = "3.1.1"
+version = "3.1.0"
 source = { editable = "." }
 dependencies = [
     { name = "aiosqlite" },
@@ -372,7 +345,6 @@ dependencies = [
 dev = [
     { name = "codespell" },
     { name = "langgraph-checkpoint" },
-    { name = "langgraph-checkpoint-conformance" },
     { name = "pytest" },
     { name = "pytest-asyncio" },
     { name = "pytest-mock" },
@@ -388,7 +360,6 @@ lint = [
 ]
 test = [
     { name = "langgraph-checkpoint" },
-    { name = "langgraph-checkpoint-conformance" },
     { name = "pytest" },
     { name = "pytest-asyncio" },
     { name = "pytest-mock" },
@@ -407,7 +378,6 @@ requires-dist = [
 dev = [
     { name = "codespell" },
     { name = "langgraph-checkpoint", editable = "../checkpoint" },
-    { name = "langgraph-checkpoint-conformance", editable = "../checkpoint-conformance" },
     { name = "pytest" },
     { name = "pytest-asyncio" },
     { name = "pytest-mock" },
@@ -423,7 +393,6 @@ lint = [
 ]
 test = [
     { name = "langgraph-checkpoint", editable = "../checkpoint" },
-    { name = "langgraph-checkpoint-conformance", editable = "../checkpoint-conformance" },
     { name = "pytest" },
     { name = "pytest-asyncio" },
     { name = "pytest-mock" },
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 ]
 
 [[package]]

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

@@ -161,23 +161,6 @@ class DeltaChannelHistory(TypedDict):
       Always present; possibly empty. Already filtered to one channel.
       Writes stored at the target checkpoint itself are pending for the
       next super-step and are excluded.
-
-      Within a single checkpoint, writes are ordered by
-      `(task_path, task_id, idx)`. This mirrors the order live execution
-      applied them in: `apply_writes` sorts a super-step's tasks by
-      `task_path_str(task.path[:3])` before handing their values to
-      `channel.update`, so a path-ordered replay reproduces the value
-      `invoke` returned. Ordering by `(task_id, idx)` alone does not —
-      `task_id` is a hash of the path, so for two or more tasks writing
-      the same channel in one super-step it permutes the values against
-      the order the reducer originally saw them in. Reducers are only
-      required to be batching-invariant, not order-invariant, so that
-      permutation changes the reconstructed value.
-
-      Writes persisted without a `task_path` (a task-less write such as
-      graph input, or a row written before the saver recorded the column)
-      sort first within their checkpoint, since `""` precedes every
-      `task_path_str` output — `task_path_str` prefixes tuples with `~`.
     * `seed` — the stored value at the nearest ancestor whose
       `channel_values[ch]` is populated. Omitted if the walk reached the
       root without finding any stored value (consumer treats absence as
@@ -627,14 +610,6 @@ class BaseCheckpointSaver(Generic[V]):
         `PostgresSaver`) override for performance; the return contract is
         fixed here.
 
-        `PendingWrite` carries no `task_path`, so the default takes each
-        ancestor's write order straight from `get_tuple`. Savers relying
-        on it must therefore return `pending_writes` ordered by
-        `(task_path, task_id, idx)` to satisfy the intra-checkpoint order
-        documented on `DeltaChannelHistory`; savers that order
-        `pending_writes` by `(task_id, idx)` alone need to override this
-        method (as the in-tree savers do) rather than inherit it.
-
         Args:
             config: Configuration identifying the target checkpoint.
             channels: Channel names to walk for. Empty → empty mapping.

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

@@ -30,23 +30,6 @@ from langgraph.checkpoint.base import (
 logger = logging.getLogger(__name__)
 
 
-# How `InMemorySaver.writes[thread, ns, checkpoint]` keys and stores one write.
-_WriteKey = tuple[str, int]  # task ID, write idx
-_WriteValue = tuple[str, str, tuple[str, bytes], str]  # + channel, value, path
-_WriteEntry = tuple[_WriteKey, _WriteValue]  # one `dict.items()` pair
-
-
-def _delta_replay_sort_key(entry: _WriteEntry) -> tuple[str, str, int]:
-    """Order one checkpoint's writes as `apply_writes` applied them live.
-
-    Live order is `(task_path, task_id, idx)` — see `DeltaChannelHistory`. It
-    has to be assembled from both halves of the entry: `(task_id, idx)` is the
-    key, `task_path` is the last element of the value.
-    """
-    (task_id, idx), (_, _, _, task_path) = entry
-    return (task_path, task_id, idx)
-
-
 class InMemorySaver(
     BaseCheckpointSaver[str], AbstractContextManager, AbstractAsyncContextManager
 ):
@@ -88,7 +71,10 @@ class InMemorySaver(
         dict[str, dict[str, tuple[tuple[str, bytes], tuple[str, bytes], str | None]]],
     ]
     # (thread ID, checkpoint NS, checkpoint ID) -> (task ID, write idx)
-    writes: defaultdict[tuple[str, str, str], dict[_WriteKey, _WriteValue]]
+    writes: defaultdict[
+        tuple[str, str, str],
+        dict[tuple[str, int], tuple[str, str, tuple[str, bytes], str]],
+    ]
     blobs: dict[
         tuple[
             str, str, str, str | int | float
@@ -214,10 +200,8 @@ class InMemorySaver(
                     terminated_here.add(ch)
 
             step_writes = self.writes.get((thread_id, checkpoint_ns, cp_id), {})
-            # Newest-first; the caller reverses to get the public oldest-first
-            # order.
-            for (task_id, _idx), (_, ch, serialized, _task_path) in sorted(
-                step_writes.items(), key=_delta_replay_sort_key, reverse=True
+            for (_task_id, _idx), (tid, ch, serialized, _) in sorted(
+                step_writes.items(), reverse=True
             ):
                 if ch not in remaining:
                     continue
@@ -227,7 +211,7 @@ class InMemorySaver(
                 ):
                     continue
                 collected_by_ch[ch].append(
-                    (task_id, ch, self.serde.loads_typed(serialized))
+                    (tid, ch, self.serde.loads_typed(serialized))
                 )
 
             for ch in terminated_here:

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

@@ -552,14 +552,6 @@ class TTLConfig(TypedDict, total=False):
     This can be overridden per-operation by explicitly setting `refresh_ttl`.
     Defaults to `True` if not configured.
     """
-    omit_expired: bool
-    """Whether to omit expired items from read operations.
-
-    If `True`, and if the store supports this option, expired items will not be
-    returned by `GET` or `SEARCH`, or included in namespace listings, even before
-    a TTL sweep deletes them.
-    Defaults to `False` if not configured.
-    """
     default_ttl: float | None
     """Default TTL (time-to-live) in minutes for new items.
     

libs/checkpoint/pyproject.toml

@@ -59,15 +59,9 @@ lint.select = [
   "UP", # pyupgrade
   "B",  # flake8-bugbear
   "I",  # isort
-  "PLC0415",  # import-outside-top-level
-  "RUF100",  # unused noqa directive
   "UP", # pyupgrade
 ]
 lint.ignore = ["E501", "B008"]
-# PLC0415 (import-outside-top-level) is enforced in tests only. Library code
-# still has deferred imports that have not been reviewed, so it stays exempt
-# for now.
-lint.per-file-ignores = { "langgraph/**" = ["PLC0415"] }
 target-version = "py310"
 
 [tool.ty.rules]

libs/checkpoint/tests/test_conformance_delta.py

@@ -12,14 +12,10 @@ conformance = pytest.importorskip(
 
 @pytest.mark.asyncio
 async def test_delta_channel_conformance():
-    # Imported inside the test: the module-level importorskip above is what
-    # makes these safe, so they cannot move to the top of the file.
-    from langgraph.checkpoint.conformance import validate  # noqa: PLC0415
-    from langgraph.checkpoint.conformance.initializer import (  # noqa: PLC0415
-        checkpointer_test,
-    )
+    from langgraph.checkpoint.conformance import validate
+    from langgraph.checkpoint.conformance.initializer import checkpointer_test
 
-    from langgraph.checkpoint.memory import InMemorySaver  # noqa: PLC0415
+    from langgraph.checkpoint.memory import InMemorySaver
 
     @checkpointer_test(name="InMemorySaver")
     async def mem_saver():

libs/checkpoint/tests/test_encrypted.py

@@ -307,6 +307,8 @@ class TestWithMsgpackAllowlistEncrypted:
             def loads_typed(self, data: tuple[str, bytes]) -> None:
                 return None
 
+        from langgraph.checkpoint.serde.base import CipherProtocol
+
         class DummyCipher(CipherProtocol):
             def encrypt(self, plaintext: bytes) -> tuple[str, bytes]:
                 return "dummy", plaintext

libs/checkpoint/tests/test_jsonplus.py

@@ -1,12 +1,9 @@
 import dataclasses
 import json
 import logging
-import os
 import pathlib
-import pickle
 import re
 import sys
-import tempfile
 import uuid
 from collections import deque
 from datetime import date, datetime, time, timezone
@@ -21,7 +18,7 @@ import ormsgpack
 import pandas as pd
 import pytest
 from langchain_core.documents.base import Document
-from langchain_core.messages import AIMessage, HumanMessage
+from langchain_core.messages import HumanMessage
 from pydantic import BaseModel, SecretStr
 from pydantic.v1 import BaseModel as BaseModelV1
 from pydantic.v1 import SecretStr as SecretStrV1
@@ -344,6 +341,7 @@ def test_lc2_json_safe_type_revives_without_allowlist() -> None:
     constructor dicts. Resuming those threads must reconstruct proper BaseMessage objects
     rather than returning raw dicts that cause MESSAGE_COERCION_FAILURE in add_messages.
     """
+    from langchain_core.messages import AIMessage
 
     serde = JsonPlusSerializer()  # default: _allowed_json_modules=None
 
@@ -412,6 +410,7 @@ def test_lc2_json_method_field_is_ignored() -> None:
     to that method: the result is whatever ``AIMessage(*args, **kwargs)`` would
     produce, which proves the default constructor ran instead of ``parse_raw``.
     """
+    from langchain_core.messages import AIMessage
 
     serde = JsonPlusSerializer()
     load = {
@@ -437,6 +436,7 @@ def test_lc2_json_method_field_is_ignored_for_allowlisted_types() -> None:
     method dispatch as a side effect. Revival is restricted to the default
     constructor regardless of how the class reached the revival path.
     """
+    from langchain_core.messages import AIMessage
 
     serde = JsonPlusSerializer(
         allowed_json_modules=[("langchain_core.messages.ai", "AIMessage")]
@@ -455,6 +455,7 @@ def test_lc2_json_method_field_is_ignored_for_allowlisted_types() -> None:
 
 def test_lc2_json_safe_type_init_still_works() -> None:
     """SAFE-type lc=2 revival without a `method` field still constructs the class."""
+    from langchain_core.messages import AIMessage
 
     serde = JsonPlusSerializer()
     load = {
@@ -478,6 +479,7 @@ def test_lc2_json_legacy_pydantic_method_list_falls_back_to_default() -> None:
     this shape continue to revive correctly as long as the default constructor
     accepts the serialized kwargs.
     """
+    from langchain_core.messages import AIMessage
 
     serde = JsonPlusSerializer()
     load = {
@@ -549,6 +551,9 @@ def test_lc2_json_safe_type_pickle_payload_does_not_execute() -> None:
     With method dispatch removed from `_revive_lc2`, the gadget bytes are never
     passed to `parse_raw` and therefore never reach `pickle.loads`.
     """
+    import os
+    import pickle
+    import tempfile
 
     marker = tempfile.NamedTemporaryFile(
         prefix="lc2_block_proof_", suffix=".out", delete=False

libs/checkpoint/tests/test_memory.py

@@ -1,4 +1,3 @@
-import asyncio
 import logging
 from typing import Any
 
@@ -524,6 +523,7 @@ class TestBaseFallbackGetChannelWrites:
         `threading.local()` guard would let whichever task set it first
         short-circuit the other to `writes=[]`.
         """
+        import asyncio
 
         saver, thread_id, ns = self._build_saver_with_chain()
 

libs/checkpoint/uv.lock

@@ -149,11 +149,11 @@ wheels = [
 
 [[package]]
 name = "codespell"
-version = "2.4.3"
+version = "2.4.2"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/80/19/45e941380f69c042b43423513d201e6592346f992394347f5e7174c31407/codespell-2.4.3.tar.gz", hash = "sha256:cbe085e331227b37bb86ef8bddd08dc768c704ee9a07ca869852c093fa2793e2", size = 352773, upload-time = "2026-07-15T11:51:54.159Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/2d/9d/1d0903dff693160f893ca6abcabad545088e7a2ee0a6deae7c24e958be69/codespell-2.4.2.tar.gz", hash = "sha256:3c33be9ae34543807f088aeb4832dfad8cb2dae38da61cac0a7045dd376cfdf3", size = 352058, upload-time = "2026-03-05T18:10:42.936Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/8b/bf/bdb951d34eb169140b546f44be9ec4525d1acefb9eb5572071f5492b19fc/codespell-2.4.3-py3-none-any.whl", hash = "sha256:af2505b335e8573dbd2d384d1c4ef498f4006f4ba2d6fceca01e55b91f52628a", size = 340736, upload-time = "2026-07-15T11:51:52.925Z" },
+    { url = "https://files.pythonhosted.org/packages/42/a1/52fa05533e95fe45bcc09bcf8a503874b1c08f221a4e35608017e0938f55/codespell-2.4.2-py3-none-any.whl", hash = "sha256:97e0c1060cf46bd1d5db89a936c98db8c2b804e1fdd4b5c645e82a1ec6b1f886", size = 353715, upload-time = "2026-03-05T18:10:41.398Z" },
 ]
 
 [[package]]
@@ -268,7 +268,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.5.2"
+version = "1.4.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "jsonpatch" },
@@ -281,21 +281,21 @@ dependencies = [
     { name = "typing-extensions" },
     { name = "uuid-utils" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/6e/58/3ad53096eee1e07728e8219ded30ae308b0f2b8b7b26b8ebb6371917c0f5/langchain_core-1.5.2.tar.gz", hash = "sha256:2d13ab35b42eec63d4669a483776b8cdd778ee764107149369fb369d84c08c41", size = 972322, upload-time = "2026-07-28T16:38:37.977Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/59/de/679a53472c25860837e32c0442c962fa86e95317a36460e2c9d5c91b17c2/langchain_core-1.4.0.tar.gz", hash = "sha256:1dc341eed802ed9c117c0df3923c991e5e9e226571e5725c194eeb5bd93d1a7f", size = 920260, upload-time = "2026-05-11T18:42:35.919Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/ca/e4/024e402a65f5ee2eb6ae9667b5ffc5f08776cb4e712f5a11ee1997d56083/langchain_core-1.5.2-py3-none-any.whl", hash = "sha256:a687dd7c3b22c6c1294e1c1eeb61fb6f3a308e6015a1d75b576b3836ad5b5aed", size = 561643, upload-time = "2026-07-28T16:38:36.38Z" },
+    { url = "https://files.pythonhosted.org/packages/0f/1a/86c38c27b81913a1c6c12448cab55defb5a1097c7dc9a4cea83f55477a2d/langchain_core-1.4.0-py3-none-any.whl", hash = "sha256:23cbbdb46e38ddd1dd5247e6167e96013eae74bea4c5949c550809970a9e565c", size = 548120, upload-time = "2026-05-11T18:42:33.992Z" },
 ]
 
 [[package]]
 name = "langchain-protocol"
-version = "0.0.18"
+version = "0.0.15"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "typing-extensions" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/d2/59/b5959aea96faa9146e2e49a7a22882b3528c62efafe9a6a95beab30c2305/langchain_protocol-0.0.18.tar.gz", hash = "sha256:ec3e11782f1ed0c9db38e5a9ed01b0e7a0d3fba406faa8aef6594b73c56a63e6", size = 6150, upload-time = "2026-06-18T17:08:26.959Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/4f/24/9777489d6fbbee64af0c8f96d4f840239c408cf694f3394672807dafc490/langchain_protocol-0.0.15.tar.gz", hash = "sha256:9ab2d11ee73944754f10e037e717098d3a6796f0e58afa9cadda6154e7655ade", size = 5862, upload-time = "2026-05-01T22:30:04.748Z" }
 wheels = [
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+    { url = "https://files.pythonhosted.org/packages/1d/7a/9c97a7b9cbe4c5dc6a44cdb1545450c28f0c8ce89b9c1f0ee7fbad896263/langchain_protocol-0.0.15-py3-none-any.whl", hash = "sha256:461eb794358f83d5e42635a5797799ffec7b4702314e34edf73ac21e75d3ef79", size = 6982, upload-time = "2026-05-01T22:30:03.877Z" },
 ]
 
 [[package]]
@@ -982,7 +982,7 @@ wheels = [
 
 [[package]]
 name = "pytest"
-version = "9.1.1"
+version = "9.0.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "colorama", marker = "sys_platform == 'win32'" },
@@ -993,9 +993,9 @@ dependencies = [
     { name = "pygments" },
     { name = "tomli", marker = "python_full_version < '3.11'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/e4/47/b9efed96c114afcfa3c9d3fe98a76a1d14c74a9e266d397cf6eb64be5e01/pytest-9.1.1.tar.gz", hash = "sha256:1088fbde8f2b49d95a549a195707afa7a76a3ce9bcadc26b6d71f0ffda5fe313", size = 1636369, upload-time = "2026-06-19T10:58:32.857Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/7d/0d/549bd94f1a0a402dc8cf64563a117c0f3765662e2e668477624baeec44d5/pytest-9.0.3.tar.gz", hash = "sha256:b86ada508af81d19edeb213c681b1d48246c1a91d304c6c81a427674c17eb91c", size = 1572165, upload-time = "2026-04-07T17:16:18.027Z" }
 wheels = [
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+    { url = "https://files.pythonhosted.org/packages/d4/24/a372aaf5c9b7208e7112038812994107bc65a84cd00e0354a88c2c77a617/pytest-9.0.3-py3-none-any.whl", hash = "sha256:2c5efc453d45394fdd706ade797c0a81091eccd1d6e4bccfcd476e2b8e0ab5d9", size = 375249, upload-time = "2026-04-07T17:16:16.13Z" },
 ]
 
 [[package]]
@@ -1124,14 +1124,14 @@ wheels = [
 
 [[package]]
 name = "redis"
-version = "8.0.1"
+version = "8.0.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
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 ]
 
 [[package]]

libs/cli/examples/graphs/storm.py

@@ -236,7 +236,7 @@ def swap_roles(state: InterviewState, name: str):
     converted = []
     for message in state["messages"]:
         if isinstance(message, AIMessage) and message.name != name:
-            message = HumanMessage(**message.model_dump(exclude={"type"}))
+            message = HumanMessage(**message.dict(exclude={"type"}))
         converted.append(message)
     return {"messages": converted}
 

libs/cli/js-examples/package.json

@@ -21,28 +21,25 @@
     "test:all": "yarn test && yarn test:int && yarn lint:langgraph"
   },
   "dependencies": {
-    "@langchain/core": "^1.2.4",
-    "@langchain/langgraph": "^1.4.8"
-  },
-  "resolutions": {
-    "@langchain/langgraph-checkpoint": "1.0.4"
+    "@langchain/core": "^1.1.48",
+    "@langchain/langgraph": "^1.3.3"
   },
   "devDependencies": {
-    "@eslint/eslintrc": "^3.3.6",
+    "@eslint/eslintrc": "^3.3.5",
     "@eslint/js": "^10.0.1",
     "@tsconfig/recommended": "^1.0.13",
     "@types/jest": "^30.0.0",
-    "@typescript-eslint/eslint-plugin": "^8.65.0",
-    "@typescript-eslint/parser": "^8.65.0",
+    "@typescript-eslint/eslint-plugin": "^8.60.1",
+    "@typescript-eslint/parser": "^8.60.1",
     "dotenv": "^17.4.2",
-    "eslint": "^10.8.0",
+    "eslint": "^10.4.1",
     "eslint-config-prettier": "^10.1.8",
     "eslint-plugin-import": "^2.32.0",
     "eslint-plugin-no-instanceof": "^1.0.1",
     "eslint-plugin-prettier": "^5.5.6",
     "jest": "^30.4.2",
-    "prettier": "^3.9.6",
-    "ts-jest": "^29.4.12",
-    "typescript": "^7.0.2"
+    "prettier": "^3.8.3",
+    "ts-jest": "^29.4.11",
+    "typescript": "^6.0.3"
   }
 }

libs/cli/js-examples/yarn.lock

@@ -412,10 +412,10 @@
     debug "^4.3.1"
     minimatch "^10.2.4"
 
-"@eslint/config-helpers@^0.7.0":
-  version "0.7.0"
-  resolved "https://registry.yarnpkg.com/@eslint/config-helpers/-/config-helpers-0.7.0.tgz#09ee4aa07b73f059ec2d4c74bf4b2ff02b322377"
-  integrity sha512-DObd/KKUsU+FaFv4PLxSRenpXfQWmPXXP3pPZ6/K1PCrMu2vQpMDMuQe/BqYeoLcz8ro0bVDF1RxOJgfVEdhUw==
+"@eslint/config-helpers@^0.6.0":
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/@eslint/config-helpers/-/config-helpers-0.6.0.tgz#ef9a36881d39dfd5dbeac22b0da997fabfb08b03"
+  integrity sha512-ii6Bw9jJ2zi2cWA2Z+9/QZ/+3DX6kwaV5Q986D/CdP3Lap3w/pgQZ373FV7byY/i7L4IRH/G43I5dz1ClsCbpA==
   dependencies:
     "@eslint/core" "^1.2.1"
 
@@ -426,10 +426,10 @@
   dependencies:
     "@types/json-schema" "^7.0.15"
 
-"@eslint/eslintrc@^3.3.6":
-  version "3.3.6"
-  resolved "https://registry.yarnpkg.com/@eslint/eslintrc/-/eslintrc-3.3.6.tgz#d22bfd6b3a7d8e1f2c0b2f2e6de111b53ec6e13e"
-  integrity sha512-l2Ul9PrHsPCKcEY/ac7VgFj9D80C7S68sOKc618SyHDPK36s1XcFebXY0iTzUVn4Yq+YbwvSnDmCz9yxjX+QrA==
+"@eslint/eslintrc@^3.3.5":
+  version "3.3.5"
+  resolved "https://registry.yarnpkg.com/@eslint/eslintrc/-/eslintrc-3.3.5.tgz#c131793cfc1a7b96f24a83e0a8bbd4b881558c60"
+  integrity sha512-4IlJx0X0qftVsN5E+/vGujTRIFtwuLbNsVUe7TO6zYPDR1O6nFwvwhIKEKSrl6dZchmYBITazxKoUYOjdtjlRg==
   dependencies:
     ajv "^6.14.0"
     debug "^4.3.2"
@@ -437,7 +437,7 @@
     globals "^14.0.0"
     ignore "^5.2.0"
     import-fresh "^3.2.1"
-    js-yaml "^4.3.0"
+    js-yaml "^4.1.1"
     minimatch "^3.1.5"
     strip-json-comments "^3.1.1"
 
@@ -835,10 +835,10 @@
     "@jridgewell/resolve-uri" "^3.1.0"
     "@jridgewell/sourcemap-codec" "^1.4.14"
 
-"@langchain/core@^1.2.4":
-  version "1.2.4"
-  resolved "https://registry.yarnpkg.com/@langchain/core/-/core-1.2.4.tgz#3916181e00f93b2e3b5801ab8273c07d144d75ce"
-  integrity sha512-GIrJktdsFPx8gM0C3VyikkeYGZAV7iRIzUJuS5tFatiKLExybou0LI0MuxH9kksN38quyfWdQDl20lIEAEVkVA==
+"@langchain/core@^1.1.48":
+  version "1.1.48"
+  resolved "https://registry.yarnpkg.com/@langchain/core/-/core-1.1.48.tgz#dfe7f6a64b0e3e79e5357ed4b402c021ee315a7f"
+  integrity sha512-fQU6Guyb1pwc2fEplmA8FPbKfOMAofjnyJzExevro0FxEiuGHE18Ov/ZHmT9trWCDTZRI9eW1VIc6aChxV8pAQ==
   dependencies:
     "@cfworker/json-schema" "^4.0.2"
     "@standard-schema/spec" "^1.1.0"
@@ -848,37 +848,39 @@
     p-queue "^6.6.2"
     zod "^3.25.76 || ^4"
 
-"@langchain/langgraph-checkpoint@1.0.4", "@langchain/langgraph-checkpoint@^1.1.3":
+"@langchain/langgraph-checkpoint@^1.0.4":
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/@langchain/langgraph-checkpoint/-/langgraph-checkpoint-1.0.4.tgz#893aa7255b2fe810fdeb50281f6750a3b0a6fef7"
   integrity sha512-1y5MgZ0gXXrtmoy56e3kaBChI3GwFPIKl27xkrHwN+VE/3iUsyr9gO3Jtp7kdKAe6diZGbcas5bdC/r0yUwTZA==
   dependencies:
     uuid "^14.0.0"
 
-"@langchain/langgraph-sdk@~1.9.26":
-  version "1.9.28"
-  resolved "https://registry.yarnpkg.com/@langchain/langgraph-sdk/-/langgraph-sdk-1.9.28.tgz#1664cc7b6f2c1509ddffecf17d805a26e70a7e1a"
-  integrity sha512-4j3XuM0PvtmAbL8mPfBS99ez3+ytRfgbOpAR/nOeaejTRF3Q9dNw2QnaGLGng8wLPtGLoSj+SYgUOVxy9Bv9vg==
+"@langchain/langgraph-sdk@~1.9.11":
+  version "1.9.11"
+  resolved "https://registry.yarnpkg.com/@langchain/langgraph-sdk/-/langgraph-sdk-1.9.11.tgz#d16f18b2c48e544436489172d86b3c78524eb679"
+  integrity sha512-mhadkZy4LQ97NJwvATiVIkSxVfOnauXNhrVHFgGnzyqr5zzPLS0VIKJW9xKT+pM8yLqW8Qj6+nPPNhwGUaxoRw==
   dependencies:
-    "@langchain/protocol" "^0.0.18"
+    "@langchain/protocol" "^0.0.16"
     "@types/json-schema" "^7.0.15"
     p-queue "^9.0.1"
     p-retry "^7.1.1"
+    uuid "^14.0.0"
 
-"@langchain/langgraph@^1.4.8":
-  version "1.4.8"
-  resolved "https://registry.yarnpkg.com/@langchain/langgraph/-/langgraph-1.4.8.tgz#65ef5635b5554cd32f502a3808b92d8371998a99"
-  integrity sha512-DN1Np1XefdBEbp1qBKlt39cwoL743AAGpR5Ipja0gY2YbWvsoQnOTIrjnj/orSAhaUYsdTKS8VSWdFzsHZo6Ig==
+"@langchain/langgraph@^1.3.3":
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/@langchain/langgraph/-/langgraph-1.3.3.tgz#c7bb19029e37971116e07101be3d8fd4b6483d50"
+  integrity sha512-8xbpGUQNBcWua7ivT5vUvDnQ+6Qbt0JO8RisgXZ8guPXNqh8plGVvrODW68S4AlJbOYY2yi0ROKtrL/1yN3MBQ==
   dependencies:
-    "@langchain/langgraph-checkpoint" "^1.1.3"
-    "@langchain/langgraph-sdk" "~1.9.26"
-    "@langchain/protocol" "^0.0.18"
+    "@langchain/langgraph-checkpoint" "^1.0.4"
+    "@langchain/langgraph-sdk" "~1.9.11"
+    "@langchain/protocol" "^0.0.16"
     "@standard-schema/spec" "1.1.0"
+    uuid "^14.0.0"
 
-"@langchain/protocol@^0.0.18":
-  version "0.0.18"
-  resolved "https://registry.yarnpkg.com/@langchain/protocol/-/protocol-0.0.18.tgz#6d96155e7263c958fbce6d4b7241b4725b72fbad"
-  integrity sha512-XW1egQtPfsGI41w2AMZNFZrUIwFSQHTjVMZs0OaTpCAvht/QLoaPN8FQcsysMVypOhupG28J29yOorrc70otBQ==
+"@langchain/protocol@^0.0.16":
+  version "0.0.16"
+  resolved "https://registry.yarnpkg.com/@langchain/protocol/-/protocol-0.0.16.tgz#68b63d58feaf4f0acf77405cb8fb16f9c3f09b60"
+  integrity sha512-ws+J7MaHyhO5dG7f0vdyHQiUn9hoCnki0f3crJPa4MCTGzcRC39jYSCghyrGtBPYQnZbUQiGyRVpW3z3M8IpJg==
 
 "@napi-rs/wasm-runtime@^0.2.11":
   version "0.2.12"
@@ -1044,212 +1046,102 @@
   dependencies:
     "@types/yargs-parser" "*"
 
-"@typescript-eslint/eslint-plugin@^8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.65.0.tgz#0a58df6fea8c0bf6b396f518077099bc8b762bb5"
-  integrity sha512-IEgob78X12rHpUmtcwFsXhZdVGJtwTVP8FiCLZkR6GlYVrl2PcuB+KhCE5BlVC/eQpQnu8WXRtkHZuPar+gCRA==
+"@typescript-eslint/eslint-plugin@^8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.60.1.tgz#c1060bb8fa4be80624d3f3dec8dd9caca373af76"
+  integrity sha512-JQ4S5GB0tfjO8BuJ4fcX+HodkzJjYBV+7OJ+wLygaX7OGQ7FudyHL4NSCA6ob+w3Yn+5MkKIozOwQhXeM7opVg==
   dependencies:
     "@eslint-community/regexpp" "^4.12.2"
-    "@typescript-eslint/scope-manager" "8.65.0"
-    "@typescript-eslint/type-utils" "8.65.0"
-    "@typescript-eslint/utils" "8.65.0"
-    "@typescript-eslint/visitor-keys" "8.65.0"
+    "@typescript-eslint/scope-manager" "8.60.1"
+    "@typescript-eslint/type-utils" "8.60.1"
+    "@typescript-eslint/utils" "8.60.1"
+    "@typescript-eslint/visitor-keys" "8.60.1"
     ignore "^7.0.5"
     natural-compare "^1.4.0"
     ts-api-utils "^2.5.0"
 
-"@typescript-eslint/parser@^8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-8.65.0.tgz#5295c1058c0a1dd746ef28baaf9c0341dbdf03dc"
-  integrity sha512-CZ4nMxWwgu1HEEFNkeaCptra9QCtkmKdgf3sWh1rl1trIhmxLilgTV4cwcbQ4wemnT4sWQN8CaKOmdYx+g2gMA==
+"@typescript-eslint/parser@^8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-8.60.1.tgz#a9d7f30850384d34b41f4687dd8944823c09e289"
+  integrity sha512-A0M6ua6H252bVjPvvtSgl2QA4+ET9S5Mtkb2GDyTxIhH/C4qDItT7RQNO5PhMC6NXGYXOR9dIalcDDgBKT7oFA==
   dependencies:
-    "@typescript-eslint/scope-manager" "8.65.0"
-    "@typescript-eslint/types" "8.65.0"
-    "@typescript-eslint/typescript-estree" "8.65.0"
-    "@typescript-eslint/visitor-keys" "8.65.0"
+    "@typescript-eslint/scope-manager" "8.60.1"
+    "@typescript-eslint/types" "8.60.1"
+    "@typescript-eslint/typescript-estree" "8.60.1"
+    "@typescript-eslint/visitor-keys" "8.60.1"
     debug "^4.4.3"
 
-"@typescript-eslint/project-service@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/project-service/-/project-service-8.65.0.tgz#65fbbc9a1591abffaeab5513200f848271cb0aa5"
-  integrity sha512-SxnPhbTsGahizDgbu7oqFH/xVtzIqMd/s+WtnSxNxJZJpLbdT5IPdzg8EZxO3+PoKahXmwJLeNQOpKJb3/bi7Q==
+"@typescript-eslint/project-service@8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/project-service/-/project-service-8.60.1.tgz#eb29712f58d72c222fc727162e92f2ab4670971b"
+  integrity sha512-eXkTH2bxmXlqD1RnOPmLZ9ZM9D3VwSx04JOwBnP9RQ+yUA5a2Mu7SfW8uaV2Aon53NJzZlZYuX7tn91Izf+xaw==
   dependencies:
-    "@typescript-eslint/tsconfig-utils" "^8.65.0"
-    "@typescript-eslint/types" "^8.65.0"
+    "@typescript-eslint/tsconfig-utils" "^8.60.1"
+    "@typescript-eslint/types" "^8.60.1"
     debug "^4.4.3"
 
-"@typescript-eslint/scope-manager@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-8.65.0.tgz#9547202ce7e608e7b6283df585703b980a0ea70d"
-  integrity sha512-Esbl8OSYiVxBokYgWPf7VVWg/BE798wXhimnn9ML9Pt5qoDf8bfQlgjlKXR/k98+AcNzlLKYrpCcrcuZ9DZLgg==
+"@typescript-eslint/scope-manager@8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-8.60.1.tgz#2f875962eaad0a0789cc3c36aea9b4ddeb2dd9c8"
+  integrity sha512-gvI5OQoptnxQnchOirukCuQ55svJSTuD/4k5+pC267xyBtYry748R9/c3tYUzb/iE6RZfllRz2lVulLCHkTm4w==
   dependencies:
-    "@typescript-eslint/types" "8.65.0"
-    "@typescript-eslint/visitor-keys" "8.65.0"
+    "@typescript-eslint/types" "8.60.1"
+    "@typescript-eslint/visitor-keys" "8.60.1"
 
-"@typescript-eslint/tsconfig-utils@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.65.0.tgz#36f168fcdbb1295f7446ff0379667f98c3cf1bf3"
-  integrity sha512-j6GzGqCiRdA7Qhur2VVmKZAkBLfnHFQfx4TaJGL9RMveZqCo48jSHHO0DTgizEnGhtWnqmbtCUSrqSkdiY/0Hg==
+"@typescript-eslint/tsconfig-utils@8.60.1", "@typescript-eslint/tsconfig-utils@^8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.60.1.tgz#bee8b942a13679a878101c9c74577d732062ed93"
+  integrity sha512-nh8w4qAteiKuZu3pSSzG/yGKpw0OlkrKnzFmbVRenKaD4qc+7i1GrmZaLVkr8rk4uipiPGMOW4YsM6WmKZ5CvA==
 
-"@typescript-eslint/tsconfig-utils@^8.65.0":
-  version "8.66.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.66.0.tgz#3a89066c507aa30541dc176804685b4b444e1e52"
-  integrity sha512-9D5gLYZG4rOjcoag8MQ/fWI8WqA9wcPDyOGyWtWFhvM1lHRbliqUSPIY5J3zqCU1tvSwzXxnnjhQhz5Ne7mJ4g==
-
-"@typescript-eslint/type-utils@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/type-utils/-/type-utils-8.65.0.tgz#d316d7522d93cff4cd14f305e02f3df2d804f9c1"
-  integrity sha512-YjaZ7PRI5qY7ax2L3PbvX0rRyGtipAReCWs0mhhDBHjH/vl0g0BonaGXrKdKpMbIIsMIwDgbk/xzkBTyAltS5g==
+"@typescript-eslint/type-utils@8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/type-utils/-/type-utils-8.60.1.tgz#1ae45f0f2a701354beea4a58c2161e40a5e3c379"
+  integrity sha512-sdwTrpjosW7ANQYJ39ZBF1ZyEMEGVB2UsikrserVM/30a/F1dTLnu9bGxEdosugyu5caigjLrR2qiD11asjI1A==
   dependencies:
-    "@typescript-eslint/types" "8.65.0"
-    "@typescript-eslint/typescript-estree" "8.65.0"
-    "@typescript-eslint/utils" "8.65.0"
+    "@typescript-eslint/types" "8.60.1"
+    "@typescript-eslint/typescript-estree" "8.60.1"
+    "@typescript-eslint/utils" "8.60.1"
     debug "^4.4.3"
     ts-api-utils "^2.5.0"
 
-"@typescript-eslint/types@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-8.65.0.tgz#3e86738416a777c8b8925ab46745f48ecf904c9f"
-  integrity sha512-JSSwWNy+H0E/01jJEM+hrX6N0OFDzFzeIhHFSAS01tlVaevpG8cFyYRPhS5yjGOvBUx3sqQHVMjCL1CAZZMxBg==
+"@typescript-eslint/types@8.60.1", "@typescript-eslint/types@^8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-8.60.1.tgz#ccdc482ba9e17f9723a10ce240b5e67dad3046c4"
+  integrity sha512-4h0tY8ppCkdCzcrl2YM5M3my0xsE1Tf8om3owEu5oPWmXwkKRmk0j0LGDzYBGUcAlesEbxBhazqu/K4cu3Ug7w==
 
-"@typescript-eslint/types@^8.65.0":
-  version "8.66.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-8.66.0.tgz#3cacab94d3b564c1d48c56eb37b89f89a6d48479"
-  integrity sha512-H6gcYaSDOyvL3AD/jHUtUFo2jqGgn/F6nuyuZSu0QTesxL+cP4dQoIMrODRofuJC09g64+WgZ6tE19Y1N2YIFQ==
-
-"@typescript-eslint/typescript-estree@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-8.65.0.tgz#f1f514808f6aa713e2d678ae8ff592a65e1632af"
-  integrity sha512-JboAE2swaYt4tb1fHhHTABE2K+OLy09XfcTbhnk4Pw96f9dd2e9iYsJ28gBggHlo5z5x1rkyWvcPoTuNTd4oGg==
+"@typescript-eslint/typescript-estree@8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-8.60.1.tgz#016630b119228bf483ddc652703a6a038f3fdd74"
+  integrity sha512-alpRkfG8hlVE5kdJW2GkfgDgXxold3e8e4l6EnmhRmRLbekgAPCCGDVD++sABy9FcgPFroq+uFcCSM1vR57Cew==
   dependencies:
-    "@typescript-eslint/project-service" "8.65.0"
-    "@typescript-eslint/tsconfig-utils" "8.65.0"
-    "@typescript-eslint/types" "8.65.0"
-    "@typescript-eslint/visitor-keys" "8.65.0"
+    "@typescript-eslint/project-service" "8.60.1"
+    "@typescript-eslint/tsconfig-utils" "8.60.1"
+    "@typescript-eslint/types" "8.60.1"
+    "@typescript-eslint/visitor-keys" "8.60.1"
     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@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/utils/-/utils-8.65.0.tgz#afedd974a0c8deeef553b509df5800bafd615a72"
-  integrity sha512-gXiwIHsYreboxeJucHKPvgwl7dXt50mF8s1/c00cP/WoVTyWKFdtfhRWwZiXYFU5H2O8vVoSLNrexFZjYS/SGA==
+"@typescript-eslint/utils@8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/utils/-/utils-8.60.1.tgz#31cf566095602d9fe8ad91837d2eb520b8de762b"
+  integrity sha512-h2MPBLoNtjc3qZWfY3Tl51yPorQ2McHn8pJfcMNTcIvrrZrr90Ykffit0yjrPFWQcRcUxzH20+6OcVdW4yHtUg==
   dependencies:
     "@eslint-community/eslint-utils" "^4.9.1"
-    "@typescript-eslint/scope-manager" "8.65.0"
-    "@typescript-eslint/types" "8.65.0"
-    "@typescript-eslint/typescript-estree" "8.65.0"
+    "@typescript-eslint/scope-manager" "8.60.1"
+    "@typescript-eslint/types" "8.60.1"
+    "@typescript-eslint/typescript-estree" "8.60.1"
 
-"@typescript-eslint/visitor-keys@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-8.65.0.tgz#e3704c13cb4a1c22454c1abf28ff4737e15018c6"
-  integrity sha512-8C71BQkGjiMmXtop7pHVJu1l2NNShFdkCyD6a2ezzs5vU/L3LRtb69EtcteFwz0mYMPzIgOw0n6OV4VBUWZd7A==
+"@typescript-eslint/visitor-keys@8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-8.60.1.tgz#165d1d8901137b944efaf18f00ab5ecb57f06995"
+  integrity sha512-EbGRQg4FhrmwLodl+t3JNAnXHWVr9Vp+Zl1QBZVPY4ByfkzIT8cX3K6QWODHtkIZqqJVEWvhHSx3v5PDHsaQag==
   dependencies:
-    "@typescript-eslint/types" "8.65.0"
+    "@typescript-eslint/types" "8.60.1"
     eslint-visitor-keys "^5.0.0"
 
-"@typescript/typescript-aix-ppc64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-aix-ppc64/-/typescript-aix-ppc64-7.0.2.tgz#cdc7ce81d60f1e09034960ddfb1fb880d7a776b6"
-  integrity sha512-MTKKkWB7p/0E9xi1d1tHtZ5PiLkGEMIq88pK2CubZjOsLtYTLqhgIgi6zepFa+9GHZ6h05NMCkQxGKiPXMxXtQ==
-
-"@typescript/typescript-darwin-arm64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-darwin-arm64/-/typescript-darwin-arm64-7.0.2.tgz#a55fdfcfa58df58d27db2237cde6a5c1e35a7235"
-  integrity sha512-gowzar9MwS/aRWp6f3a4KUqzRjAZjOsmGNCM6LcTgXum+dBfgsBVMN+AgvOCCbguXyick6LJhpBszxMebJ8syA==
-
-"@typescript/typescript-darwin-x64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-darwin-x64/-/typescript-darwin-x64-7.0.2.tgz#38d1c9172800a91d707bec64d2a370a016634db4"
-  integrity sha512-SZ9xZInqApNlNGc9s0W1VSsktYSOe9cFqNOIqmN1Gs8SmkjKZYFt017G4VwPxASInODuAdbTW7sXiFUf893RgA==
-
-"@typescript/typescript-freebsd-arm64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-freebsd-arm64/-/typescript-freebsd-arm64-7.0.2.tgz#f1ff8810030b35d2b5be0db6a2dc650460ea94fa"
-  integrity sha512-W5NH4y/J0plIIS5b2xvTEkU7JFxyqdMAOgf+Ilhl0vHQXKO5dZoxd+C/jEtq56c4F3wk71RB4BMRQ2XdI+bwYQ==
-
-"@typescript/typescript-freebsd-x64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-freebsd-x64/-/typescript-freebsd-x64-7.0.2.tgz#3d86b03f353c5b1ba95162eb6ce35533bfc294bd"
-  integrity sha512-UMGDx5sTpzNw3WiPebH7l90IWfJggEd+egHt/q6p7/Cm3zqoV7VxkGXt+3DxPIw8CcmvAB0j3sVVfbhX+M4Tpw==
-
-"@typescript/typescript-linux-arm64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-arm64/-/typescript-linux-arm64-7.0.2.tgz#d9334d96d6dac6ff85da9c865588948de939e91f"
-  integrity sha512-Qh4eU4/y3yDjnfjjyPYihMj5/ODIlmt+Bzu17OI+fiSRDW57QmU5SiN63exPRNJPKUzcc1INa1NXdrJ+MqHjUQ==
-
-"@typescript/typescript-linux-arm@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-arm/-/typescript-linux-arm-7.0.2.tgz#ad94b41e1aee2a4dcc6a298c7b67c43345fde32e"
-  integrity sha512-gffT3xPz9sR7j/YJExkyPntrI0P2EP9XbOyWzth2/Gs0RstK+90RBcO0ncXoXy/beYll1SXw846Nf2zdnEz0QQ==
-
-"@typescript/typescript-linux-loong64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-loong64/-/typescript-linux-loong64-7.0.2.tgz#2965aee4fc873360139d893daafe6397a29138ad"
-  integrity sha512-uEHck9i8hoAzXPiYRib1O7miOnz23SxIeVl6F4LXox+qov1K35jHcEW6VHKvZI+pyvl7fZEP4MCU5LYvIq1GuQ==
-
-"@typescript/typescript-linux-mips64el@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-mips64el/-/typescript-linux-mips64el-7.0.2.tgz#1a887a311bed3a833f80bfd4a9ed37c271936cf0"
-  integrity sha512-R4KvAMnE43W5Qeqb0Ly56O3mWMWIAgsMyz36DCaycd5nbg/9kzm0liw3JocfRqyJY0KPmzFjbswozXyW0DnIYA==
-
-"@typescript/typescript-linux-ppc64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-ppc64/-/typescript-linux-ppc64-7.0.2.tgz#8b63c9b2f445b393eb4e43ec21da225dade3577d"
-  integrity sha512-DORx5b3sd/4S7eayxm4FQv+A7CrkUIGRaHiwI8oiHTAI1fAPWhF4J0vAlkC8biAlHSVVwxMQ3tjZ2/DVbnQiiA==
-
-"@typescript/typescript-linux-riscv64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-riscv64/-/typescript-linux-riscv64-7.0.2.tgz#b6e8a35c289b3ea97a92a41d461aaeed0d3b36e1"
-  integrity sha512-wf0jqEDOjrPRnKwYRyyJDRo11KMbvMFrU+q4zqKyChODBzvlkbhNQfKvLxQCcwTpdDaXSHZTVuh0JoCrKCUMHQ==
-
-"@typescript/typescript-linux-s390x@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-s390x/-/typescript-linux-s390x-7.0.2.tgz#2ef96693be4861f6d17965427e5b009cbbed1a3e"
-  integrity sha512-IkwJc3L7yhytWd/ewjyxNDfOmswCm9GWMJT/ue/dU4aZNbwZeYAetq42VyLmsmSjvoX7z74X6ZaYCtzAr0EuGw==
-
-"@typescript/typescript-linux-x64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-x64/-/typescript-linux-x64-7.0.2.tgz#73269cb0baba50aea0ca060445a6b88e583f1ce2"
-  integrity sha512-EYdf2cNg7rgCWJnxCdJ+F3V39O8ihb37eHAu1LK8oAFizgTQbPOK7zHHXbPt8rX24COqODXeI3sIf0fCXG7H/A==
-
-"@typescript/typescript-netbsd-arm64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-netbsd-arm64/-/typescript-netbsd-arm64-7.0.2.tgz#3a3649f97fafa210b4e6e3798c15e06605c8a901"
-  integrity sha512-+polYF4MF04aPpO5FTkHran9yUQDSXqy5GiSDKpsll5jy3l3+g9QLhpf39T+ePtefhXLOGrLl0QIjkQP6VnelA==
-
-"@typescript/typescript-netbsd-x64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-netbsd-x64/-/typescript-netbsd-x64-7.0.2.tgz#47ec59491a40c470d2807dc4d2b825528fd979ab"
-  integrity sha512-8YIT0EHM/3dq10ZOVF/A7pc/YSMtbcecct4rWtexrnSCHOPcpC2KTLXfTCR6vDpnSiY12heNb1GiN/wu+T/FyA==
-
-"@typescript/typescript-openbsd-arm64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-openbsd-arm64/-/typescript-openbsd-arm64-7.0.2.tgz#796be8da0bd989d8a3fb96f2801e38a8365b4baf"
-  integrity sha512-APT8+ClYnuYm1u9+kgGXoMj2VzWzcymwh2gNSQVySHfkRDGOTVkoWLjCmOQSaO+PoqQ57B0flRp9SA+7GnnkzQ==
-
-"@typescript/typescript-openbsd-x64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-openbsd-x64/-/typescript-openbsd-x64-7.0.2.tgz#d37fe2a729eb942c076c454ee7f1815faf7d560f"
-  integrity sha512-yX7s+Q0Dln0Dt9tEzZsAjXXR/+ytBM7AlglaqyeMPxQszJ1JhlJdZ6jLA+IzldHtflX81em7lDao1xXu+aRRkg==
-
-"@typescript/typescript-sunos-x64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-sunos-x64/-/typescript-sunos-x64-7.0.2.tgz#aba8d3464c3565a7044789baba96916bd4ab2c88"
-  integrity sha512-dLJDGaLZ1D4HPQn62u1n8mBDkJREwMsAkCdkwd4Ieqw+x3TUyTsqY0YiBCtE6H6OzzgGk3iuZ3vFWRS+E8/d1g==
-
-"@typescript/typescript-win32-arm64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-win32-arm64/-/typescript-win32-arm64-7.0.2.tgz#b9de50a17196383f62620b5f9d0a2f34ad3b60d7"
-  integrity sha512-Gyl1Vy6OsWesLzmq+EP0Fb7b4Nid5232AvcA2SFcdYreldpNtYFFofPjnt62y9hQy7VTaZp65ICJjuAQRaVcIQ==
-
-"@typescript/typescript-win32-x64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-win32-x64/-/typescript-win32-x64-7.0.2.tgz#cf3b7b0d6ce5635daca4c8e01c189cdcde47ec3c"
-  integrity sha512-0BQ3HkAHHlKLSp1qRvf3SUhGpGsDuhB/jgFw75guyqbxJqEaS0Cw/VFO8i2nHglJUzQCRtMMR/IBAKE3ETMC4g==
-
 "@ungap/structured-clone@^1.3.0":
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/@ungap/structured-clone/-/structured-clone-1.3.0.tgz#d06bbb384ebcf6c505fde1c3d0ed4ddffe0aaff8"
@@ -1637,10 +1529,10 @@ brace-expansion@^2.0.2:
   dependencies:
     balanced-match "^1.0.0"
 
-brace-expansion@^5.0.8:
-  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==
+brace-expansion@^5.0.2:
+  version "5.0.2"
+  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-5.0.2.tgz#b6c16d0791087af6c2bc463f52a8142046c06b6f"
+  integrity sha512-Pdk8c9poy+YhOgVWw1JNN22/HcivgKWwpxKq04M/jTmHyCZn12WPJebZxdjSa5TmBqISrUSgNYU3eRORljfCCw==
   dependencies:
     balanced-match "^4.0.2"
 
@@ -2294,15 +2186,15 @@ 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@^10.8.0:
-  version "10.8.0"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-10.8.0.tgz#e6d19907a3f090a53a022261ba34c5ff6d04908b"
-  integrity sha512-nuKKvN+oIBO0koN7Tm7dlkmnkc21mtt0QJLwAKzjLq14y6lRTdVG36MZHJ8eQHwdJMwZbQNMlPOYedMq/oVJvQ==
+eslint@^10.4.1:
+  version "10.4.1"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-10.4.1.tgz#f6640b176e0912246d9ddbf8fcfa5e8b7f02445a"
+  integrity sha512-AyIKhnOBuOAdueD7RB3xB+YeAWScb9jHsJBgH2Hcde8InP5JYhqrRR6iTMHyTEwgENK54Cp44e4v8BwNhsuHuw==
   dependencies:
     "@eslint-community/eslint-utils" "^4.8.0"
     "@eslint-community/regexpp" "^4.12.2"
     "@eslint/config-array" "^0.23.5"
-    "@eslint/config-helpers" "^0.7.0"
+    "@eslint/config-helpers" "^0.6.0"
     "@eslint/core" "^1.2.1"
     "@eslint/plugin-kit" "^0.7.2"
     "@humanfs/node" "^0.16.6"
@@ -2326,7 +2218,7 @@ eslint@^10.8.0:
     imurmurhash "^0.1.4"
     is-glob "^4.0.0"
     json-stable-stringify-without-jsonify "^1.0.1"
-    minimatch "^10.2.5"
+    minimatch "^10.2.4"
     natural-compare "^1.4.0"
     optionator "^0.9.3"
 
@@ -3651,10 +3543,10 @@ js-yaml@^3.13.1:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
-js-yaml@^4.3.0:
-  version "4.3.1"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-4.3.1.tgz#01216c001d67f48e2cd560d708c7af21090a3848"
-  integrity sha512-CY6crGq313MX8GkwvB7tzgp99vjQxY1++5y10/BKN/GUfHqWaOGQMNZkBvqSzsZKWk/ijwHlWzzkLulsGHhjWQ==
+js-yaml@^4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-4.1.1.tgz#854c292467705b699476e1a2decc0c8a3458806b"
+  integrity sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==
   dependencies:
     argparse "^2.0.1"
 
@@ -3800,12 +3692,12 @@ mimic-fn@^2.1.0:
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-2.1.0.tgz#7ed2c2ccccaf84d3ffcb7a69b57711fc2083401b"
   integrity sha512-OqbOk5oEQeAZ8WXWydlu9HJjz9WVdEIvamMCcXmuqUYjTknH/sqsWvhQ3vgwKFRR1HpjvNBKQ37nbJgYzGqGcg==
 
-minimatch@^10.2.2, minimatch@^10.2.4, minimatch@^10.2.5:
-  version "10.2.6"
-  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-10.2.6.tgz#fd956bbe0b77241e9f15ac5dccb1c638060968ef"
-  integrity sha512-vpLQEs+VLCr1nU0BXS07maYoFwlDAH0gngQuuttxIwutDFEMHq2blX+8vpgxDdK3J1PwjCJiep77OitTZ4Ll1A==
+minimatch@^10.2.2, minimatch@^10.2.4:
+  version "10.2.4"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-10.2.4.tgz#465b3accbd0218b8281f5301e27cedc697f96fde"
+  integrity sha512-oRjTw/97aTBN0RHbYCdtF1MQfvusSIBQM0IZEgzl6426+8jSC0nF1a/GmnVLpfB9yyr6g6FTqWqiZVbxrtaCIg==
   dependencies:
-    brace-expansion "^5.0.8"
+    brace-expansion "^5.0.2"
 
 minimatch@^3.0.4, minimatch@^3.1.1, minimatch@^3.1.2, minimatch@^3.1.5:
   version "3.1.5"
@@ -4151,10 +4043,10 @@ prettier-linter-helpers@^1.0.1:
   dependencies:
     fast-diff "^1.1.2"
 
-prettier@^3.9.6:
-  version "3.9.6"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.9.6.tgz#b3ea5146515d40fc53f18aa63f74dfab1e10dbf6"
-  integrity sha512-OpN0zzVdiaiAhxpuuj5efpIS4sY9j7bY6uR5mnj5yPzGkdkjNKSJeUThPb60Jw29QuAZgA4o+/iB49kFiaBX6g==
+prettier@^3.8.3:
+  version "3.8.3"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.8.3.tgz#560f2de55bf01b4c0503bc629d5df99b9a1d09b0"
+  integrity sha512-7igPTM53cGHMW8xWuVTydi2KO233VFiTNyF5hLJqpilHfmn8C8gPf+PS7dUT64YcXFbiMGZxS9pCSxL/Dxm/Jw==
 
 pretty-format@30.2.0, pretty-format@^30.0.0:
   version "30.2.0"
@@ -4319,10 +4211,10 @@ semver@^6.3.1:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.1.tgz#556d2ef8689146e46dcea4bfdd095f3434dffcb4"
   integrity sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==
 
-semver@^7.5.3, semver@^7.5.4, semver@^7.7.2, semver@^7.7.3, semver@^7.8.5:
-  version "7.8.5"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-7.8.5.tgz#39b646037dd50c14fb451e7e4cac58ed8b863f69"
-  integrity sha512-Y7/KDsb8LjooZpwaqGyulO6DQlksgCncchHGk+sZIY4SBvUocMBEFH5Ur1fI4dV+Jvl0w6cjvucaIi40puRioA==
+semver@^7.5.3, semver@^7.5.4, semver@^7.7.2, semver@^7.7.3, semver@^7.8.0:
+  version "7.8.1"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.8.1.tgz#bf4970b5e70fda0686363cc18bfe8805d5ed957e"
+  integrity sha512-rkVq3IXh+4FDGch+KwzX3aV9W3kO54GyEgpvBzSyctDA6Xtd7RJQV1xmXbeQp5v7+VzLOfVqiutSE6GICgPFvg==
 
 set-function-length@^1.2.1, set-function-length@^1.2.2:
   version "1.2.2"
@@ -4655,10 +4547,10 @@ ts-api-utils@^2.5.0:
   resolved "https://registry.yarnpkg.com/ts-api-utils/-/ts-api-utils-2.5.0.tgz#4acd4a155e22734990a5ed1fe9e97f113bcb37c1"
   integrity sha512-OJ/ibxhPlqrMM0UiNHJ/0CKQkoKF243/AEmplt3qpRgkW8VG7IfOS41h7V8TjITqdByHzrjcS/2si+y4lIh8NA==
 
-ts-jest@^29.4.12:
-  version "29.4.12"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-29.4.12.tgz#c34cd91f02d364e9286d2c016843315fd0efff76"
-  integrity sha512-Ov6ClY53Fflh6BGAnY2DlTq1hYDrTycz2PVTXBWFW2CU+9zrEqAp9fWdGXl42EXO5RLSFAcAZ2JFKbP+zBTFfw==
+ts-jest@^29.4.11:
+  version "29.4.11"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-29.4.11.tgz#42f5de21c37ccc01a580253afae6955abbf4d0b3"
+  integrity sha512-IrFl7l9AuB/qrNw5quqvAv/hmKMb8dhWOH4jQOGo0Oq8tCeo1O86/iTFG1FaRimgUkF13l4PcepO8ATFT6Ns4g==
   dependencies:
     bs-logger "^0.2.6"
     fast-json-stable-stringify "^2.1.0"
@@ -4666,7 +4558,7 @@ ts-jest@^29.4.12:
     json5 "^2.2.3"
     lodash.memoize "^4.1.2"
     make-error "^1.3.6"
-    semver "^7.8.5"
+    semver "^7.8.0"
     type-fest "^4.41.0"
     yargs-parser "^21.1.1"
 
@@ -4796,31 +4688,10 @@ typed-array-length@^1.0.7:
     possible-typed-array-names "^1.0.0"
     reflect.getprototypeof "^1.0.6"
 
-typescript@^7.0.2:
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-7.0.2.tgz#9ec773d7954a8c182c17cc5bbd575aa28bc51582"
-  integrity sha512-8FYau96o3NKOhbjKi/qNvG/W5jhzxkbdm5sj9AbZ/5T5sWqn3hJgLfGx27sRKZWTvyzCP8dLRBTf5tBTSRVUNA==
-  optionalDependencies:
-    "@typescript/typescript-aix-ppc64" "7.0.2"
-    "@typescript/typescript-darwin-arm64" "7.0.2"
-    "@typescript/typescript-darwin-x64" "7.0.2"
-    "@typescript/typescript-freebsd-arm64" "7.0.2"
-    "@typescript/typescript-freebsd-x64" "7.0.2"
-    "@typescript/typescript-linux-arm" "7.0.2"
-    "@typescript/typescript-linux-arm64" "7.0.2"
-    "@typescript/typescript-linux-loong64" "7.0.2"
-    "@typescript/typescript-linux-mips64el" "7.0.2"
-    "@typescript/typescript-linux-ppc64" "7.0.2"
-    "@typescript/typescript-linux-riscv64" "7.0.2"
-    "@typescript/typescript-linux-s390x" "7.0.2"
-    "@typescript/typescript-linux-x64" "7.0.2"
-    "@typescript/typescript-netbsd-arm64" "7.0.2"
-    "@typescript/typescript-netbsd-x64" "7.0.2"
-    "@typescript/typescript-openbsd-arm64" "7.0.2"
-    "@typescript/typescript-openbsd-x64" "7.0.2"
-    "@typescript/typescript-sunos-x64" "7.0.2"
-    "@typescript/typescript-win32-arm64" "7.0.2"
-    "@typescript/typescript-win32-x64" "7.0.2"
+typescript@^6.0.3:
+  version "6.0.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-6.0.3.tgz#90251dc007916e972786cb94d74d15b185577d21"
+  integrity sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==
 
 uglify-js@^3.1.4:
   version "3.19.3"
@@ -4895,9 +4766,9 @@ uri-js@^4.2.2:
     punycode "^2.1.0"
 
 uuid@^14.0.0:
-  version "14.0.1"
-  resolved "https://registry.yarnpkg.com/uuid/-/uuid-14.0.1.tgz#8a5975b3e038902bfd169a10b5202f5ec0cf3faf"
-  integrity sha512-6ZxzVpzDXDa3bJWaHilVayA+BH/1zmxCJoVgvmqJnid/gPoKHxUrS/aC/T6LGQtNHT+XHG9fXPJB4d+IrU30Ew==
+  version "14.0.0"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-14.0.0.tgz#0af883220163d264ffe0c084f6b8a89b9666966d"
+  integrity sha512-Qo+uWgilfSmAhXCMav1uYFynlQO7fMFiMVZsQqZRMIXp0O7rR7qjkj+cPvBHLgBqi960QCoo/PH2/6ZtVqKvrg==
 
 v8-to-istanbul@^9.0.1:
   version "9.3.0"

libs/cli/js-monorepo-example/apps/agent/package.json

@@ -9,10 +9,10 @@
   },
   "dependencies": {
     "@js-monorepo-example/shared": "*",
-    "@langchain/core": "^1.2.4",
-    "@langchain/langgraph": "^1.4.8"
+    "@langchain/core": "^1.1.48",
+    "@langchain/langgraph": "^1.3.3"
   },
   "devDependencies": {
-    "typescript": "^7.0.2"
+    "typescript": "^6.0.3"
   }
 }

libs/cli/js-monorepo-example/libs/shared/package.json

@@ -9,6 +9,6 @@
     "clean": "rm -rf dist"
   },
   "devDependencies": {
-    "typescript": "^7.0.2"
+    "typescript": "^6.0.3"
   }
 }

libs/cli/js-monorepo-example/package.json

@@ -17,18 +17,18 @@
     "lint": "eslint 'apps/**/*.ts' 'libs/**/*.ts'"
   },
   "devDependencies": {
-    "turbo": "^2.10.8",
-    "typescript": "^7.0.2",
+    "turbo": "^2.9.16",
+    "typescript": "^6.0.3",
     "@tsconfig/recommended": "^1.0.13",
-    "@eslint/eslintrc": "^3.3.6",
+    "@eslint/eslintrc": "^3.3.5",
     "@eslint/js": "^10.0.1",
-    "eslint": "^10.8.0",
+    "eslint": "^10.4.1",
     "eslint-config-prettier": "^10.1.8",
     "eslint-plugin-import": "^2.27.5",
     "eslint-plugin-no-instanceof": "^1.0.1",
     "eslint-plugin-prettier": "^5.5.6",
-    "@typescript-eslint/eslint-plugin": "^8.65.0",
-    "@typescript-eslint/parser": "^8.65.0",
-    "prettier": "^3.9.6"
+    "@typescript-eslint/eslint-plugin": "^8.60.1",
+    "@typescript-eslint/parser": "^8.60.1",
+    "prettier": "^3.8.3"
   }
 }

libs/cli/js-monorepo-example/yarn.lock

@@ -28,10 +28,10 @@
     debug "^4.3.1"
     minimatch "^10.2.4"
 
-"@eslint/config-helpers@^0.7.0":
-  version "0.7.0"
-  resolved "https://registry.yarnpkg.com/@eslint/config-helpers/-/config-helpers-0.7.0.tgz#09ee4aa07b73f059ec2d4c74bf4b2ff02b322377"
-  integrity sha512-DObd/KKUsU+FaFv4PLxSRenpXfQWmPXXP3pPZ6/K1PCrMu2vQpMDMuQe/BqYeoLcz8ro0bVDF1RxOJgfVEdhUw==
+"@eslint/config-helpers@^0.6.0":
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/@eslint/config-helpers/-/config-helpers-0.6.0.tgz#ef9a36881d39dfd5dbeac22b0da997fabfb08b03"
+  integrity sha512-ii6Bw9jJ2zi2cWA2Z+9/QZ/+3DX6kwaV5Q986D/CdP3Lap3w/pgQZ373FV7byY/i7L4IRH/G43I5dz1ClsCbpA==
   dependencies:
     "@eslint/core" "^1.2.1"
 
@@ -42,10 +42,10 @@
   dependencies:
     "@types/json-schema" "^7.0.15"
 
-"@eslint/eslintrc@^3.3.6":
-  version "3.3.6"
-  resolved "https://registry.yarnpkg.com/@eslint/eslintrc/-/eslintrc-3.3.6.tgz#d22bfd6b3a7d8e1f2c0b2f2e6de111b53ec6e13e"
-  integrity sha512-l2Ul9PrHsPCKcEY/ac7VgFj9D80C7S68sOKc618SyHDPK36s1XcFebXY0iTzUVn4Yq+YbwvSnDmCz9yxjX+QrA==
+"@eslint/eslintrc@^3.3.5":
+  version "3.3.5"
+  resolved "https://registry.yarnpkg.com/@eslint/eslintrc/-/eslintrc-3.3.5.tgz#c131793cfc1a7b96f24a83e0a8bbd4b881558c60"
+  integrity sha512-4IlJx0X0qftVsN5E+/vGujTRIFtwuLbNsVUe7TO6zYPDR1O6nFwvwhIKEKSrl6dZchmYBITazxKoUYOjdtjlRg==
   dependencies:
     ajv "^6.14.0"
     debug "^4.3.2"
@@ -53,7 +53,7 @@
     globals "^14.0.0"
     ignore "^5.2.0"
     import-fresh "^3.2.1"
-    js-yaml "^4.3.0"
+    js-yaml "^4.1.1"
     minimatch "^3.1.5"
     strip-json-comments "^3.1.1"
 
@@ -103,10 +103,10 @@
   resolved "https://registry.yarnpkg.com/@isaacs/cliui/-/cliui-9.0.0.tgz#4d0a3f127058043bf2e7ee169eaf30ed901302f3"
   integrity sha512-AokJm4tuBHillT+FpMtxQ60n8ObyXBatq7jD2/JA9dxbDDokKQm8KMht5ibGzLVU9IJDIKK4TPKgMHEYMn3lMg==
 
-"@langchain/core@^1.2.4":
-  version "1.2.4"
-  resolved "https://registry.yarnpkg.com/@langchain/core/-/core-1.2.4.tgz#3916181e00f93b2e3b5801ab8273c07d144d75ce"
-  integrity sha512-GIrJktdsFPx8gM0C3VyikkeYGZAV7iRIzUJuS5tFatiKLExybou0LI0MuxH9kksN38quyfWdQDl20lIEAEVkVA==
+"@langchain/core@^1.1.48":
+  version "1.1.48"
+  resolved "https://registry.yarnpkg.com/@langchain/core/-/core-1.1.48.tgz#dfe7f6a64b0e3e79e5357ed4b402c021ee315a7f"
+  integrity sha512-fQU6Guyb1pwc2fEplmA8FPbKfOMAofjnyJzExevro0FxEiuGHE18Ov/ZHmT9trWCDTZRI9eW1VIc6aChxV8pAQ==
   dependencies:
     "@cfworker/json-schema" "^4.0.2"
     "@standard-schema/spec" "^1.1.0"
@@ -116,35 +116,39 @@
     p-queue "^6.6.2"
     zod "^3.25.76 || ^4"
 
-"@langchain/langgraph-checkpoint@^1.1.3":
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/@langchain/langgraph-checkpoint/-/langgraph-checkpoint-1.1.3.tgz#891f2f9a2e96cf2ab0920f9240f9ad1e0a86a4ab"
-  integrity sha512-wgzdQNeEsdw1e+4lvlj0tdq/RYR/k1vPin10g0ymGoehZDDgd9nvIllGXSXN4TFgF9sf5qQP/KTkOcLfeseIhA==
-
-"@langchain/langgraph-sdk@~1.9.26":
-  version "1.9.28"
-  resolved "https://registry.yarnpkg.com/@langchain/langgraph-sdk/-/langgraph-sdk-1.9.28.tgz#1664cc7b6f2c1509ddffecf17d805a26e70a7e1a"
-  integrity sha512-4j3XuM0PvtmAbL8mPfBS99ez3+ytRfgbOpAR/nOeaejTRF3Q9dNw2QnaGLGng8wLPtGLoSj+SYgUOVxy9Bv9vg==
+"@langchain/langgraph-checkpoint@^1.0.4":
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/@langchain/langgraph-checkpoint/-/langgraph-checkpoint-1.0.4.tgz#893aa7255b2fe810fdeb50281f6750a3b0a6fef7"
+  integrity sha512-1y5MgZ0gXXrtmoy56e3kaBChI3GwFPIKl27xkrHwN+VE/3iUsyr9gO3Jtp7kdKAe6diZGbcas5bdC/r0yUwTZA==
   dependencies:
-    "@langchain/protocol" "^0.0.18"
+    uuid "^14.0.0"
+
+"@langchain/langgraph-sdk@~1.9.11":
+  version "1.9.11"
+  resolved "https://registry.yarnpkg.com/@langchain/langgraph-sdk/-/langgraph-sdk-1.9.11.tgz#d16f18b2c48e544436489172d86b3c78524eb679"
+  integrity sha512-mhadkZy4LQ97NJwvATiVIkSxVfOnauXNhrVHFgGnzyqr5zzPLS0VIKJW9xKT+pM8yLqW8Qj6+nPPNhwGUaxoRw==
+  dependencies:
+    "@langchain/protocol" "^0.0.16"
     "@types/json-schema" "^7.0.15"
     p-queue "^9.0.1"
     p-retry "^7.1.1"
+    uuid "^14.0.0"
 
-"@langchain/langgraph@^1.4.8":
-  version "1.4.8"
-  resolved "https://registry.yarnpkg.com/@langchain/langgraph/-/langgraph-1.4.8.tgz#65ef5635b5554cd32f502a3808b92d8371998a99"
-  integrity sha512-DN1Np1XefdBEbp1qBKlt39cwoL743AAGpR5Ipja0gY2YbWvsoQnOTIrjnj/orSAhaUYsdTKS8VSWdFzsHZo6Ig==
+"@langchain/langgraph@^1.3.3":
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/@langchain/langgraph/-/langgraph-1.3.3.tgz#c7bb19029e37971116e07101be3d8fd4b6483d50"
+  integrity sha512-8xbpGUQNBcWua7ivT5vUvDnQ+6Qbt0JO8RisgXZ8guPXNqh8plGVvrODW68S4AlJbOYY2yi0ROKtrL/1yN3MBQ==
   dependencies:
-    "@langchain/langgraph-checkpoint" "^1.1.3"
-    "@langchain/langgraph-sdk" "~1.9.26"
-    "@langchain/protocol" "^0.0.18"
+    "@langchain/langgraph-checkpoint" "^1.0.4"
+    "@langchain/langgraph-sdk" "~1.9.11"
+    "@langchain/protocol" "^0.0.16"
     "@standard-schema/spec" "1.1.0"
+    uuid "^14.0.0"
 
-"@langchain/protocol@^0.0.18":
-  version "0.0.18"
-  resolved "https://registry.yarnpkg.com/@langchain/protocol/-/protocol-0.0.18.tgz#6d96155e7263c958fbce6d4b7241b4725b72fbad"
-  integrity sha512-XW1egQtPfsGI41w2AMZNFZrUIwFSQHTjVMZs0OaTpCAvht/QLoaPN8FQcsysMVypOhupG28J29yOorrc70otBQ==
+"@langchain/protocol@^0.0.16":
+  version "0.0.16"
+  resolved "https://registry.yarnpkg.com/@langchain/protocol/-/protocol-0.0.16.tgz#68b63d58feaf4f0acf77405cb8fb16f9c3f09b60"
+  integrity sha512-ws+J7MaHyhO5dG7f0vdyHQiUn9hoCnki0f3crJPa4MCTGzcRC39jYSCghyrGtBPYQnZbUQiGyRVpW3z3M8IpJg==
 
 "@pkgr/core@^0.3.6":
   version "0.3.6"
@@ -166,35 +170,35 @@
   resolved "https://registry.yarnpkg.com/@tsconfig/recommended/-/recommended-1.0.13.tgz#269fce3ad04ca70b93269ff44cca81b950f542da"
   integrity sha512-sySRuBfMKyKO/j2ZAhR8kSembhjuPEV4Ra3AHtmWLq51+iGaudr45crPSzNC5b7/Ctrh9dfUpBuTlYrH6rM58Q==
 
-"@turbo/darwin-64@2.10.8":
-  version "2.10.8"
-  resolved "https://registry.yarnpkg.com/@turbo/darwin-64/-/darwin-64-2.10.8.tgz#0ae7cde6b95b82b0a4fe406ffea64bdfcf68a0ee"
-  integrity sha512-po+7rfJfUnFXjWlcoN2RwhErgzCdRtBc1T26vYPcywHlggmCQiQe1uWaE4j+BibI2uY9/2pDoFzMN0rmSaPFOw==
+"@turbo/darwin-64@2.9.16":
+  version "2.9.16"
+  resolved "https://registry.yarnpkg.com/@turbo/darwin-64/-/darwin-64-2.9.16.tgz#f4146eab98e020d658a9a5d7feb846acba653546"
+  integrity sha512-jLjApWTSNd7JZ5JaLYfelW1ytnGQOvB7ivl+2RD1xQvJTbi8I9gBjzcga7tDZVPyaxpl10YTfJt3BrYXR18KDw==
 
-"@turbo/darwin-arm64@2.10.8":
-  version "2.10.8"
-  resolved "https://registry.yarnpkg.com/@turbo/darwin-arm64/-/darwin-arm64-2.10.8.tgz#18a9127c0a0d9c5ad7de49bdb27e7032f8946334"
-  integrity sha512-+zB2btDJ00lnPRuqOvpVvgl4x34k/djZQGZTTCfjn7JgNCl8QFY5Njo5+dqkY1g/+9gbbsnAvWm9CmJg9ebcXA==
+"@turbo/darwin-arm64@2.9.16":
+  version "2.9.16"
+  resolved "https://registry.yarnpkg.com/@turbo/darwin-arm64/-/darwin-arm64-2.9.16.tgz#1d01ca232fc189045d6a4dba4741f462e0343b8c"
+  integrity sha512-YPgrn+5HIGzrx0O2a631SV4MBQUe4W/DafMFUuBVgaU32PW9/OTT0ehviF0QSxTXuRJlHvW2eUTemddF5/spmw==
 
-"@turbo/linux-64@2.10.8":
-  version "2.10.8"
-  resolved "https://registry.yarnpkg.com/@turbo/linux-64/-/linux-64-2.10.8.tgz#1677672f5760d272c0a0608686fe8b8b29491fdb"
-  integrity sha512-K1dxqiVisyN7cViVsfQLs6xscQbYuI8aO2nbUhFURDACgEDfZRdP/b4CCxeosBJpcMfhYyiibWqJorCnvz9kKg==
+"@turbo/linux-64@2.9.16":
+  version "2.9.16"
+  resolved "https://registry.yarnpkg.com/@turbo/linux-64/-/linux-64-2.9.16.tgz#8db630e6e5681a2ea48f7df1bca57bbd9bdf3e25"
+  integrity sha512-vAEf1H6l26lTpl9FJ/peQo1NUB8RC0sbEJJz5mPcUhHA2bPDup2x3CZPgo/bH8S4cUcBLm4FN3UHd5iUO2RAew==
 
-"@turbo/linux-arm64@2.10.8":
-  version "2.10.8"
-  resolved "https://registry.yarnpkg.com/@turbo/linux-arm64/-/linux-arm64-2.10.8.tgz#dbdb5aef9e53bb4c88357dafc19f79138ec29253"
-  integrity sha512-Gi77ibVnrE1fEmvr+/wBD/yvRqhwp/RQuCp2+//lv1U1wNFFyVg0V7Wj8FG9FXPFAw5QHReo8rxc9+wBSDZjzA==
+"@turbo/linux-arm64@2.9.16":
+  version "2.9.16"
+  resolved "https://registry.yarnpkg.com/@turbo/linux-arm64/-/linux-arm64-2.9.16.tgz#d1de82fc8075c4774b214dd2f5e8e2570bb03643"
+  integrity sha512-xDBLR2PZg4BrQOchfG6svgpv5FCNJ2TOtT2psLdEJcdKo1BH+pnPs9Xj6pvUjgfkHbuvBOfeE4R6tvxMoQKDHQ==
 
-"@turbo/windows-64@2.10.8":
-  version "2.10.8"
-  resolved "https://registry.yarnpkg.com/@turbo/windows-64/-/windows-64-2.10.8.tgz#451c3b5421c9ce573c764b1efacae5ad4d1312ee"
-  integrity sha512-znnLO1haJPYTHoKMKwlAvlkjRiYbbhBzME6wIGaMd+fwir23U6jVd1ecaTWWi1fbnRVqxMfgDBKseQ/hLKb83g==
+"@turbo/windows-64@2.9.16":
+  version "2.9.16"
+  resolved "https://registry.yarnpkg.com/@turbo/windows-64/-/windows-64-2.9.16.tgz#e369c51edd737978651c2f6b4ce49b582976d66f"
+  integrity sha512-NBAJnaUiGdgkSzQwUIdOvkCkcpTSu58G/sBGa0mvBtzfvFOOgrQwepKOOQ8cp6sWM6OcKDNFj2p1dsZA1OWjPg==
 
-"@turbo/windows-arm64@2.10.8":
-  version "2.10.8"
-  resolved "https://registry.yarnpkg.com/@turbo/windows-arm64/-/windows-arm64-2.10.8.tgz#5661ca9b75713aece06d319493e48a366a4cd05c"
-  integrity sha512-VN30vh3b3Czh2WzYHNTfF1FE0YMZ5aHsLO8dBMGHJewA6792wX6iJR8ZxlzFW6WdOu0gEAKIvlYhfyT81Wkm4Q==
+"@turbo/windows-arm64@2.9.16":
+  version "2.9.16"
+  resolved "https://registry.yarnpkg.com/@turbo/windows-arm64/-/windows-arm64-2.9.16.tgz#dbb2b2863e80eb9ca8da8bd8da63e2cc457e470c"
+  integrity sha512-Y7SJppD0Z8wjO3Ec0ZGd9KQ4Yv0BMnA8CIowj5Vp+OEVsosXDG2weK6/t1RRLfJmc2Ozrnd6y4DOgQys+mn3WQ==
 
 "@types/esrecurse@^4.3.1":
   version "4.3.1"
@@ -216,212 +220,102 @@
   resolved "https://registry.yarnpkg.com/@types/json5/-/json5-0.0.29.tgz#ee28707ae94e11d2b827bcbe5270bcea7f3e71ee"
   integrity sha512-dRLjCWHYg4oaA77cxO64oO+7JwCwnIzkZPdrrC71jQmQtlhM556pwKo5bUzqvZndkVbeFLIIi+9TC40JNF5hNQ==
 
-"@typescript-eslint/eslint-plugin@^8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.65.0.tgz#0a58df6fea8c0bf6b396f518077099bc8b762bb5"
-  integrity sha512-IEgob78X12rHpUmtcwFsXhZdVGJtwTVP8FiCLZkR6GlYVrl2PcuB+KhCE5BlVC/eQpQnu8WXRtkHZuPar+gCRA==
+"@typescript-eslint/eslint-plugin@^8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.60.1.tgz#c1060bb8fa4be80624d3f3dec8dd9caca373af76"
+  integrity sha512-JQ4S5GB0tfjO8BuJ4fcX+HodkzJjYBV+7OJ+wLygaX7OGQ7FudyHL4NSCA6ob+w3Yn+5MkKIozOwQhXeM7opVg==
   dependencies:
     "@eslint-community/regexpp" "^4.12.2"
-    "@typescript-eslint/scope-manager" "8.65.0"
-    "@typescript-eslint/type-utils" "8.65.0"
-    "@typescript-eslint/utils" "8.65.0"
-    "@typescript-eslint/visitor-keys" "8.65.0"
+    "@typescript-eslint/scope-manager" "8.60.1"
+    "@typescript-eslint/type-utils" "8.60.1"
+    "@typescript-eslint/utils" "8.60.1"
+    "@typescript-eslint/visitor-keys" "8.60.1"
     ignore "^7.0.5"
     natural-compare "^1.4.0"
     ts-api-utils "^2.5.0"
 
-"@typescript-eslint/parser@^8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-8.65.0.tgz#5295c1058c0a1dd746ef28baaf9c0341dbdf03dc"
-  integrity sha512-CZ4nMxWwgu1HEEFNkeaCptra9QCtkmKdgf3sWh1rl1trIhmxLilgTV4cwcbQ4wemnT4sWQN8CaKOmdYx+g2gMA==
+"@typescript-eslint/parser@^8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-8.60.1.tgz#a9d7f30850384d34b41f4687dd8944823c09e289"
+  integrity sha512-A0M6ua6H252bVjPvvtSgl2QA4+ET9S5Mtkb2GDyTxIhH/C4qDItT7RQNO5PhMC6NXGYXOR9dIalcDDgBKT7oFA==
   dependencies:
-    "@typescript-eslint/scope-manager" "8.65.0"
-    "@typescript-eslint/types" "8.65.0"
-    "@typescript-eslint/typescript-estree" "8.65.0"
-    "@typescript-eslint/visitor-keys" "8.65.0"
+    "@typescript-eslint/scope-manager" "8.60.1"
+    "@typescript-eslint/types" "8.60.1"
+    "@typescript-eslint/typescript-estree" "8.60.1"
+    "@typescript-eslint/visitor-keys" "8.60.1"
     debug "^4.4.3"
 
-"@typescript-eslint/project-service@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/project-service/-/project-service-8.65.0.tgz#65fbbc9a1591abffaeab5513200f848271cb0aa5"
-  integrity sha512-SxnPhbTsGahizDgbu7oqFH/xVtzIqMd/s+WtnSxNxJZJpLbdT5IPdzg8EZxO3+PoKahXmwJLeNQOpKJb3/bi7Q==
+"@typescript-eslint/project-service@8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/project-service/-/project-service-8.60.1.tgz#eb29712f58d72c222fc727162e92f2ab4670971b"
+  integrity sha512-eXkTH2bxmXlqD1RnOPmLZ9ZM9D3VwSx04JOwBnP9RQ+yUA5a2Mu7SfW8uaV2Aon53NJzZlZYuX7tn91Izf+xaw==
   dependencies:
-    "@typescript-eslint/tsconfig-utils" "^8.65.0"
-    "@typescript-eslint/types" "^8.65.0"
+    "@typescript-eslint/tsconfig-utils" "^8.60.1"
+    "@typescript-eslint/types" "^8.60.1"
     debug "^4.4.3"
 
-"@typescript-eslint/scope-manager@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-8.65.0.tgz#9547202ce7e608e7b6283df585703b980a0ea70d"
-  integrity sha512-Esbl8OSYiVxBokYgWPf7VVWg/BE798wXhimnn9ML9Pt5qoDf8bfQlgjlKXR/k98+AcNzlLKYrpCcrcuZ9DZLgg==
+"@typescript-eslint/scope-manager@8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-8.60.1.tgz#2f875962eaad0a0789cc3c36aea9b4ddeb2dd9c8"
+  integrity sha512-gvI5OQoptnxQnchOirukCuQ55svJSTuD/4k5+pC267xyBtYry748R9/c3tYUzb/iE6RZfllRz2lVulLCHkTm4w==
   dependencies:
-    "@typescript-eslint/types" "8.65.0"
-    "@typescript-eslint/visitor-keys" "8.65.0"
+    "@typescript-eslint/types" "8.60.1"
+    "@typescript-eslint/visitor-keys" "8.60.1"
 
-"@typescript-eslint/tsconfig-utils@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.65.0.tgz#36f168fcdbb1295f7446ff0379667f98c3cf1bf3"
-  integrity sha512-j6GzGqCiRdA7Qhur2VVmKZAkBLfnHFQfx4TaJGL9RMveZqCo48jSHHO0DTgizEnGhtWnqmbtCUSrqSkdiY/0Hg==
+"@typescript-eslint/tsconfig-utils@8.60.1", "@typescript-eslint/tsconfig-utils@^8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.60.1.tgz#bee8b942a13679a878101c9c74577d732062ed93"
+  integrity sha512-nh8w4qAteiKuZu3pSSzG/yGKpw0OlkrKnzFmbVRenKaD4qc+7i1GrmZaLVkr8rk4uipiPGMOW4YsM6WmKZ5CvA==
 
-"@typescript-eslint/tsconfig-utils@^8.65.0":
-  version "8.66.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.66.0.tgz#3a89066c507aa30541dc176804685b4b444e1e52"
-  integrity sha512-9D5gLYZG4rOjcoag8MQ/fWI8WqA9wcPDyOGyWtWFhvM1lHRbliqUSPIY5J3zqCU1tvSwzXxnnjhQhz5Ne7mJ4g==
-
-"@typescript-eslint/type-utils@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/type-utils/-/type-utils-8.65.0.tgz#d316d7522d93cff4cd14f305e02f3df2d804f9c1"
-  integrity sha512-YjaZ7PRI5qY7ax2L3PbvX0rRyGtipAReCWs0mhhDBHjH/vl0g0BonaGXrKdKpMbIIsMIwDgbk/xzkBTyAltS5g==
+"@typescript-eslint/type-utils@8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/type-utils/-/type-utils-8.60.1.tgz#1ae45f0f2a701354beea4a58c2161e40a5e3c379"
+  integrity sha512-sdwTrpjosW7ANQYJ39ZBF1ZyEMEGVB2UsikrserVM/30a/F1dTLnu9bGxEdosugyu5caigjLrR2qiD11asjI1A==
   dependencies:
-    "@typescript-eslint/types" "8.65.0"
-    "@typescript-eslint/typescript-estree" "8.65.0"
-    "@typescript-eslint/utils" "8.65.0"
+    "@typescript-eslint/types" "8.60.1"
+    "@typescript-eslint/typescript-estree" "8.60.1"
+    "@typescript-eslint/utils" "8.60.1"
     debug "^4.4.3"
     ts-api-utils "^2.5.0"
 
-"@typescript-eslint/types@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-8.65.0.tgz#3e86738416a777c8b8925ab46745f48ecf904c9f"
-  integrity sha512-JSSwWNy+H0E/01jJEM+hrX6N0OFDzFzeIhHFSAS01tlVaevpG8cFyYRPhS5yjGOvBUx3sqQHVMjCL1CAZZMxBg==
+"@typescript-eslint/types@8.60.1", "@typescript-eslint/types@^8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-8.60.1.tgz#ccdc482ba9e17f9723a10ce240b5e67dad3046c4"
+  integrity sha512-4h0tY8ppCkdCzcrl2YM5M3my0xsE1Tf8om3owEu5oPWmXwkKRmk0j0LGDzYBGUcAlesEbxBhazqu/K4cu3Ug7w==
 
-"@typescript-eslint/types@^8.65.0":
-  version "8.66.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-8.66.0.tgz#3cacab94d3b564c1d48c56eb37b89f89a6d48479"
-  integrity sha512-H6gcYaSDOyvL3AD/jHUtUFo2jqGgn/F6nuyuZSu0QTesxL+cP4dQoIMrODRofuJC09g64+WgZ6tE19Y1N2YIFQ==
-
-"@typescript-eslint/typescript-estree@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-8.65.0.tgz#f1f514808f6aa713e2d678ae8ff592a65e1632af"
-  integrity sha512-JboAE2swaYt4tb1fHhHTABE2K+OLy09XfcTbhnk4Pw96f9dd2e9iYsJ28gBggHlo5z5x1rkyWvcPoTuNTd4oGg==
+"@typescript-eslint/typescript-estree@8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-8.60.1.tgz#016630b119228bf483ddc652703a6a038f3fdd74"
+  integrity sha512-alpRkfG8hlVE5kdJW2GkfgDgXxold3e8e4l6EnmhRmRLbekgAPCCGDVD++sABy9FcgPFroq+uFcCSM1vR57Cew==
   dependencies:
-    "@typescript-eslint/project-service" "8.65.0"
-    "@typescript-eslint/tsconfig-utils" "8.65.0"
-    "@typescript-eslint/types" "8.65.0"
-    "@typescript-eslint/visitor-keys" "8.65.0"
+    "@typescript-eslint/project-service" "8.60.1"
+    "@typescript-eslint/tsconfig-utils" "8.60.1"
+    "@typescript-eslint/types" "8.60.1"
+    "@typescript-eslint/visitor-keys" "8.60.1"
     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@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/utils/-/utils-8.65.0.tgz#afedd974a0c8deeef553b509df5800bafd615a72"
-  integrity sha512-gXiwIHsYreboxeJucHKPvgwl7dXt50mF8s1/c00cP/WoVTyWKFdtfhRWwZiXYFU5H2O8vVoSLNrexFZjYS/SGA==
+"@typescript-eslint/utils@8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/utils/-/utils-8.60.1.tgz#31cf566095602d9fe8ad91837d2eb520b8de762b"
+  integrity sha512-h2MPBLoNtjc3qZWfY3Tl51yPorQ2McHn8pJfcMNTcIvrrZrr90Ykffit0yjrPFWQcRcUxzH20+6OcVdW4yHtUg==
   dependencies:
     "@eslint-community/eslint-utils" "^4.9.1"
-    "@typescript-eslint/scope-manager" "8.65.0"
-    "@typescript-eslint/types" "8.65.0"
-    "@typescript-eslint/typescript-estree" "8.65.0"
+    "@typescript-eslint/scope-manager" "8.60.1"
+    "@typescript-eslint/types" "8.60.1"
+    "@typescript-eslint/typescript-estree" "8.60.1"
 
-"@typescript-eslint/visitor-keys@8.65.0":
-  version "8.65.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-8.65.0.tgz#e3704c13cb4a1c22454c1abf28ff4737e15018c6"
-  integrity sha512-8C71BQkGjiMmXtop7pHVJu1l2NNShFdkCyD6a2ezzs5vU/L3LRtb69EtcteFwz0mYMPzIgOw0n6OV4VBUWZd7A==
+"@typescript-eslint/visitor-keys@8.60.1":
+  version "8.60.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-8.60.1.tgz#165d1d8901137b944efaf18f00ab5ecb57f06995"
+  integrity sha512-EbGRQg4FhrmwLodl+t3JNAnXHWVr9Vp+Zl1QBZVPY4ByfkzIT8cX3K6QWODHtkIZqqJVEWvhHSx3v5PDHsaQag==
   dependencies:
-    "@typescript-eslint/types" "8.65.0"
+    "@typescript-eslint/types" "8.60.1"
     eslint-visitor-keys "^5.0.0"
 
-"@typescript/typescript-aix-ppc64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-aix-ppc64/-/typescript-aix-ppc64-7.0.2.tgz#cdc7ce81d60f1e09034960ddfb1fb880d7a776b6"
-  integrity sha512-MTKKkWB7p/0E9xi1d1tHtZ5PiLkGEMIq88pK2CubZjOsLtYTLqhgIgi6zepFa+9GHZ6h05NMCkQxGKiPXMxXtQ==
-
-"@typescript/typescript-darwin-arm64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-darwin-arm64/-/typescript-darwin-arm64-7.0.2.tgz#a55fdfcfa58df58d27db2237cde6a5c1e35a7235"
-  integrity sha512-gowzar9MwS/aRWp6f3a4KUqzRjAZjOsmGNCM6LcTgXum+dBfgsBVMN+AgvOCCbguXyick6LJhpBszxMebJ8syA==
-
-"@typescript/typescript-darwin-x64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-darwin-x64/-/typescript-darwin-x64-7.0.2.tgz#38d1c9172800a91d707bec64d2a370a016634db4"
-  integrity sha512-SZ9xZInqApNlNGc9s0W1VSsktYSOe9cFqNOIqmN1Gs8SmkjKZYFt017G4VwPxASInODuAdbTW7sXiFUf893RgA==
-
-"@typescript/typescript-freebsd-arm64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-freebsd-arm64/-/typescript-freebsd-arm64-7.0.2.tgz#f1ff8810030b35d2b5be0db6a2dc650460ea94fa"
-  integrity sha512-W5NH4y/J0plIIS5b2xvTEkU7JFxyqdMAOgf+Ilhl0vHQXKO5dZoxd+C/jEtq56c4F3wk71RB4BMRQ2XdI+bwYQ==
-
-"@typescript/typescript-freebsd-x64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-freebsd-x64/-/typescript-freebsd-x64-7.0.2.tgz#3d86b03f353c5b1ba95162eb6ce35533bfc294bd"
-  integrity sha512-UMGDx5sTpzNw3WiPebH7l90IWfJggEd+egHt/q6p7/Cm3zqoV7VxkGXt+3DxPIw8CcmvAB0j3sVVfbhX+M4Tpw==
-
-"@typescript/typescript-linux-arm64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-arm64/-/typescript-linux-arm64-7.0.2.tgz#d9334d96d6dac6ff85da9c865588948de939e91f"
-  integrity sha512-Qh4eU4/y3yDjnfjjyPYihMj5/ODIlmt+Bzu17OI+fiSRDW57QmU5SiN63exPRNJPKUzcc1INa1NXdrJ+MqHjUQ==
-
-"@typescript/typescript-linux-arm@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-arm/-/typescript-linux-arm-7.0.2.tgz#ad94b41e1aee2a4dcc6a298c7b67c43345fde32e"
-  integrity sha512-gffT3xPz9sR7j/YJExkyPntrI0P2EP9XbOyWzth2/Gs0RstK+90RBcO0ncXoXy/beYll1SXw846Nf2zdnEz0QQ==
-
-"@typescript/typescript-linux-loong64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-loong64/-/typescript-linux-loong64-7.0.2.tgz#2965aee4fc873360139d893daafe6397a29138ad"
-  integrity sha512-uEHck9i8hoAzXPiYRib1O7miOnz23SxIeVl6F4LXox+qov1K35jHcEW6VHKvZI+pyvl7fZEP4MCU5LYvIq1GuQ==
-
-"@typescript/typescript-linux-mips64el@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-mips64el/-/typescript-linux-mips64el-7.0.2.tgz#1a887a311bed3a833f80bfd4a9ed37c271936cf0"
-  integrity sha512-R4KvAMnE43W5Qeqb0Ly56O3mWMWIAgsMyz36DCaycd5nbg/9kzm0liw3JocfRqyJY0KPmzFjbswozXyW0DnIYA==
-
-"@typescript/typescript-linux-ppc64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-ppc64/-/typescript-linux-ppc64-7.0.2.tgz#8b63c9b2f445b393eb4e43ec21da225dade3577d"
-  integrity sha512-DORx5b3sd/4S7eayxm4FQv+A7CrkUIGRaHiwI8oiHTAI1fAPWhF4J0vAlkC8biAlHSVVwxMQ3tjZ2/DVbnQiiA==
-
-"@typescript/typescript-linux-riscv64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-riscv64/-/typescript-linux-riscv64-7.0.2.tgz#b6e8a35c289b3ea97a92a41d461aaeed0d3b36e1"
-  integrity sha512-wf0jqEDOjrPRnKwYRyyJDRo11KMbvMFrU+q4zqKyChODBzvlkbhNQfKvLxQCcwTpdDaXSHZTVuh0JoCrKCUMHQ==
-
-"@typescript/typescript-linux-s390x@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-s390x/-/typescript-linux-s390x-7.0.2.tgz#2ef96693be4861f6d17965427e5b009cbbed1a3e"
-  integrity sha512-IkwJc3L7yhytWd/ewjyxNDfOmswCm9GWMJT/ue/dU4aZNbwZeYAetq42VyLmsmSjvoX7z74X6ZaYCtzAr0EuGw==
-
-"@typescript/typescript-linux-x64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-linux-x64/-/typescript-linux-x64-7.0.2.tgz#73269cb0baba50aea0ca060445a6b88e583f1ce2"
-  integrity sha512-EYdf2cNg7rgCWJnxCdJ+F3V39O8ihb37eHAu1LK8oAFizgTQbPOK7zHHXbPt8rX24COqODXeI3sIf0fCXG7H/A==
-
-"@typescript/typescript-netbsd-arm64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-netbsd-arm64/-/typescript-netbsd-arm64-7.0.2.tgz#3a3649f97fafa210b4e6e3798c15e06605c8a901"
-  integrity sha512-+polYF4MF04aPpO5FTkHran9yUQDSXqy5GiSDKpsll5jy3l3+g9QLhpf39T+ePtefhXLOGrLl0QIjkQP6VnelA==
-
-"@typescript/typescript-netbsd-x64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-netbsd-x64/-/typescript-netbsd-x64-7.0.2.tgz#47ec59491a40c470d2807dc4d2b825528fd979ab"
-  integrity sha512-8YIT0EHM/3dq10ZOVF/A7pc/YSMtbcecct4rWtexrnSCHOPcpC2KTLXfTCR6vDpnSiY12heNb1GiN/wu+T/FyA==
-
-"@typescript/typescript-openbsd-arm64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-openbsd-arm64/-/typescript-openbsd-arm64-7.0.2.tgz#796be8da0bd989d8a3fb96f2801e38a8365b4baf"
-  integrity sha512-APT8+ClYnuYm1u9+kgGXoMj2VzWzcymwh2gNSQVySHfkRDGOTVkoWLjCmOQSaO+PoqQ57B0flRp9SA+7GnnkzQ==
-
-"@typescript/typescript-openbsd-x64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-openbsd-x64/-/typescript-openbsd-x64-7.0.2.tgz#d37fe2a729eb942c076c454ee7f1815faf7d560f"
-  integrity sha512-yX7s+Q0Dln0Dt9tEzZsAjXXR/+ytBM7AlglaqyeMPxQszJ1JhlJdZ6jLA+IzldHtflX81em7lDao1xXu+aRRkg==
-
-"@typescript/typescript-sunos-x64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-sunos-x64/-/typescript-sunos-x64-7.0.2.tgz#aba8d3464c3565a7044789baba96916bd4ab2c88"
-  integrity sha512-dLJDGaLZ1D4HPQn62u1n8mBDkJREwMsAkCdkwd4Ieqw+x3TUyTsqY0YiBCtE6H6OzzgGk3iuZ3vFWRS+E8/d1g==
-
-"@typescript/typescript-win32-arm64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-win32-arm64/-/typescript-win32-arm64-7.0.2.tgz#b9de50a17196383f62620b5f9d0a2f34ad3b60d7"
-  integrity sha512-Gyl1Vy6OsWesLzmq+EP0Fb7b4Nid5232AvcA2SFcdYreldpNtYFFofPjnt62y9hQy7VTaZp65ICJjuAQRaVcIQ==
-
-"@typescript/typescript-win32-x64@7.0.2":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@typescript/typescript-win32-x64/-/typescript-win32-x64-7.0.2.tgz#cf3b7b0d6ce5635daca4c8e01c189cdcde47ec3c"
-  integrity sha512-0BQ3HkAHHlKLSp1qRvf3SUhGpGsDuhB/jgFw75guyqbxJqEaS0Cw/VFO8i2nHglJUzQCRtMMR/IBAKE3ETMC4g==
-
 acorn-jsx@^5.3.2:
   version "5.3.2"
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-5.3.2.tgz#7ed5bb55908b3b2f1bc55c6af1653bada7f07937"
@@ -557,10 +451,10 @@ brace-expansion@^1.1.7:
     balanced-match "^1.0.0"
     concat-map "0.0.1"
 
-brace-expansion@^5.0.8:
-  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==
+brace-expansion@^5.0.2:
+  version "5.0.2"
+  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-5.0.2.tgz#b6c16d0791087af6c2bc463f52a8142046c06b6f"
+  integrity sha512-Pdk8c9poy+YhOgVWw1JNN22/HcivgKWwpxKq04M/jTmHyCZn12WPJebZxdjSa5TmBqISrUSgNYU3eRORljfCCw==
   dependencies:
     balanced-match "^4.0.2"
 
@@ -881,15 +775,15 @@ 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@^10.8.0:
-  version "10.8.0"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-10.8.0.tgz#e6d19907a3f090a53a022261ba34c5ff6d04908b"
-  integrity sha512-nuKKvN+oIBO0koN7Tm7dlkmnkc21mtt0QJLwAKzjLq14y6lRTdVG36MZHJ8eQHwdJMwZbQNMlPOYedMq/oVJvQ==
+eslint@^10.4.1:
+  version "10.4.1"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-10.4.1.tgz#f6640b176e0912246d9ddbf8fcfa5e8b7f02445a"
+  integrity sha512-AyIKhnOBuOAdueD7RB3xB+YeAWScb9jHsJBgH2Hcde8InP5JYhqrRR6iTMHyTEwgENK54Cp44e4v8BwNhsuHuw==
   dependencies:
     "@eslint-community/eslint-utils" "^4.8.0"
     "@eslint-community/regexpp" "^4.12.2"
     "@eslint/config-array" "^0.23.5"
-    "@eslint/config-helpers" "^0.7.0"
+    "@eslint/config-helpers" "^0.6.0"
     "@eslint/core" "^1.2.1"
     "@eslint/plugin-kit" "^0.7.2"
     "@humanfs/node" "^0.16.6"
@@ -913,7 +807,7 @@ eslint@^10.8.0:
     imurmurhash "^0.1.4"
     is-glob "^4.0.0"
     json-stable-stringify-without-jsonify "^1.0.1"
-    minimatch "^10.2.5"
+    minimatch "^10.2.4"
     natural-compare "^1.4.0"
     optionator "^0.9.3"
 
@@ -1385,10 +1279,10 @@ js-tiktoken@^1.0.12:
   dependencies:
     base64-js "^1.5.1"
 
-js-yaml@^4.3.0:
-  version "4.3.1"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-4.3.1.tgz#01216c001d67f48e2cd560d708c7af21090a3848"
-  integrity sha512-CY6crGq313MX8GkwvB7tzgp99vjQxY1++5y10/BKN/GUfHqWaOGQMNZkBvqSzsZKWk/ijwHlWzzkLulsGHhjWQ==
+js-yaml@^4.1.1:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-4.2.0.tgz#2bd9e85682dd91bd469afb809d816043b3d49524"
+  integrity sha512-ePWsvanv0DWuDRsW8dnt+R4jQ31SCRCQ7hhNcPXZPsoBZiemuZNYGf7adZdqX2D86j6rvKp3RpCxVTSb8WQlOw==
   dependencies:
     argparse "^2.0.1"
 
@@ -1448,12 +1342,12 @@ math-intrinsics@^1.1.0:
   resolved "https://registry.yarnpkg.com/math-intrinsics/-/math-intrinsics-1.1.0.tgz#a0dd74be81e2aa5c2f27e65ce283605ee4e2b7f9"
   integrity sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==
 
-minimatch@^10.2.2, minimatch@^10.2.4, minimatch@^10.2.5:
-  version "10.2.6"
-  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-10.2.6.tgz#fd956bbe0b77241e9f15ac5dccb1c638060968ef"
-  integrity sha512-vpLQEs+VLCr1nU0BXS07maYoFwlDAH0gngQuuttxIwutDFEMHq2blX+8vpgxDdK3J1PwjCJiep77OitTZ4Ll1A==
+minimatch@^10.2.2, minimatch@^10.2.4:
+  version "10.2.4"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-10.2.4.tgz#465b3accbd0218b8281f5301e27cedc697f96fde"
+  integrity sha512-oRjTw/97aTBN0RHbYCdtF1MQfvusSIBQM0IZEgzl6426+8jSC0nF1a/GmnVLpfB9yyr6g6FTqWqiZVbxrtaCIg==
   dependencies:
-    brace-expansion "^5.0.8"
+    brace-expansion "^5.0.2"
 
 minimatch@^3.1.2, minimatch@^3.1.5:
   version "3.1.5"
@@ -1652,10 +1546,10 @@ prettier-linter-helpers@^1.0.1:
   dependencies:
     fast-diff "^1.1.2"
 
-prettier@^3.9.6:
-  version "3.9.6"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.9.6.tgz#b3ea5146515d40fc53f18aa63f74dfab1e10dbf6"
-  integrity sha512-OpN0zzVdiaiAhxpuuj5efpIS4sY9j7bY6uR5mnj5yPzGkdkjNKSJeUThPb60Jw29QuAZgA4o+/iB49kFiaBX6g==
+prettier@^3.8.3:
+  version "3.8.3"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.8.3.tgz#560f2de55bf01b4c0503bc629d5df99b9a1d09b0"
+  integrity sha512-7igPTM53cGHMW8xWuVTydi2KO233VFiTNyF5hLJqpilHfmn8C8gPf+PS7dUT64YcXFbiMGZxS9pCSxL/Dxm/Jw==
 
 punycode@^2.1.0:
   version "2.3.1"
@@ -1908,17 +1802,17 @@ tsconfig-paths@^3.15.0:
     minimist "^1.2.6"
     strip-bom "^3.0.0"
 
-turbo@^2.10.8:
-  version "2.10.8"
-  resolved "https://registry.yarnpkg.com/turbo/-/turbo-2.10.8.tgz#09457cb7db79710586da455a29bccc05f15b1b72"
-  integrity sha512-9+8YX5QOkGXzZxcIykTHgaooRHGMWO+jfdyRK0o+rN0U7hBIig2MrJ8r/aNzIPDPhdA73SGb0O+tIztaModTMg==
+turbo@^2.9.16:
+  version "2.9.16"
+  resolved "https://registry.yarnpkg.com/turbo/-/turbo-2.9.16.tgz#ed72ff679c2c54bde0e3a2e40107416181e203a4"
+  integrity sha512-NqgRQy6j6dPYcdSdv0q1g9QsZg7SWg87RERM8otw/1AtKU2yTFVClOM7cbwKzOonZr/Ek1blTBucw64L9H0Bwg==
   optionalDependencies:
-    "@turbo/darwin-64" "2.10.8"
-    "@turbo/darwin-arm64" "2.10.8"
-    "@turbo/linux-64" "2.10.8"
-    "@turbo/linux-arm64" "2.10.8"
-    "@turbo/windows-64" "2.10.8"
-    "@turbo/windows-arm64" "2.10.8"
+    "@turbo/darwin-64" "2.9.16"
+    "@turbo/darwin-arm64" "2.9.16"
+    "@turbo/linux-64" "2.9.16"
+    "@turbo/linux-arm64" "2.9.16"
+    "@turbo/windows-64" "2.9.16"
+    "@turbo/windows-arm64" "2.9.16"
 
 type-check@^0.4.0, type-check@~0.4.0:
   version "0.4.0"
@@ -1972,31 +1866,10 @@ typed-array-length@^1.0.7:
     possible-typed-array-names "^1.0.0"
     reflect.getprototypeof "^1.0.6"
 
-typescript@^7.0.2:
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-7.0.2.tgz#9ec773d7954a8c182c17cc5bbd575aa28bc51582"
-  integrity sha512-8FYau96o3NKOhbjKi/qNvG/W5jhzxkbdm5sj9AbZ/5T5sWqn3hJgLfGx27sRKZWTvyzCP8dLRBTf5tBTSRVUNA==
-  optionalDependencies:
-    "@typescript/typescript-aix-ppc64" "7.0.2"
-    "@typescript/typescript-darwin-arm64" "7.0.2"
-    "@typescript/typescript-darwin-x64" "7.0.2"
-    "@typescript/typescript-freebsd-arm64" "7.0.2"
-    "@typescript/typescript-freebsd-x64" "7.0.2"
-    "@typescript/typescript-linux-arm" "7.0.2"
-    "@typescript/typescript-linux-arm64" "7.0.2"
-    "@typescript/typescript-linux-loong64" "7.0.2"
-    "@typescript/typescript-linux-mips64el" "7.0.2"
-    "@typescript/typescript-linux-ppc64" "7.0.2"
-    "@typescript/typescript-linux-riscv64" "7.0.2"
-    "@typescript/typescript-linux-s390x" "7.0.2"
-    "@typescript/typescript-linux-x64" "7.0.2"
-    "@typescript/typescript-netbsd-arm64" "7.0.2"
-    "@typescript/typescript-netbsd-x64" "7.0.2"
-    "@typescript/typescript-openbsd-arm64" "7.0.2"
-    "@typescript/typescript-openbsd-x64" "7.0.2"
-    "@typescript/typescript-sunos-x64" "7.0.2"
-    "@typescript/typescript-win32-arm64" "7.0.2"
-    "@typescript/typescript-win32-x64" "7.0.2"
+typescript@^6.0.3:
+  version "6.0.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-6.0.3.tgz#90251dc007916e972786cb94d74d15b185577d21"
+  integrity sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==
 
 unbox-primitive@^1.1.0:
   version "1.1.0"
@@ -2015,6 +1888,11 @@ uri-js@^4.2.2:
   dependencies:
     punycode "^2.1.0"
 
+uuid@^14.0.0:
+  version "14.0.0"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-14.0.0.tgz#0af883220163d264ffe0c084f6b8a89b9666966d"
+  integrity sha512-Qo+uWgilfSmAhXCMav1uYFynlQO7fMFiMVZsQqZRMIXp0O7rR7qjkj+cPvBHLgBqi960QCoo/PH2/6ZtVqKvrg==
+
 which-boxed-primitive@^1.1.0, which-boxed-primitive@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/which-boxed-primitive/-/which-boxed-primitive-1.1.1.tgz#d76ec27df7fa165f18d5808374a5fe23c29b176e"

libs/cli/langgraph_cli/__init__.py

@@ -1 +1 @@
-__version__ = "0.4.31"
+__version__ = "0.4.30"

libs/cli/langgraph_cli/deploy.py

@@ -1786,12 +1786,8 @@ def deploy_list(api_key: str | None, host_url: str | None, name_contains: str) -
         client,
         lambda c: c.list_deployments(name_contains=name_contains),
     )
-    resources = response.get("resources") if isinstance(response, dict) else None
-    deployments = (
-        [item for item in resources if isinstance(item, dict)]
-        if isinstance(resources, list)
-        else []
-    )
+    resources = response.get("resources", []) if isinstance(response, dict) else []
+    deployments = [item for item in resources if isinstance(item, dict)]
     if not deployments:
         click.echo("No deployments found.")
         return
@@ -1835,12 +1831,8 @@ def deploy_revisions_list(
         client,
         lambda c: c.list_revisions(deployment_id, limit=limit),
     )
-    resources = response.get("resources") if isinstance(response, dict) else None
-    revisions = (
-        [item for item in resources if isinstance(item, dict)]
-        if isinstance(resources, list)
-        else []
-    )
+    resources = response.get("resources", []) if isinstance(response, dict) else []
+    revisions = [item for item in resources if isinstance(item, dict)]
     if not revisions:
         click.echo(f"No revisions found for deployment {deployment_id}.")
         return

libs/cli/pyproject.toml

@@ -23,7 +23,7 @@ dependencies = [
 path = "langgraph_cli/__init__.py"
 [project.optional-dependencies]
 inmem = [
-    "langgraph-api>=0.5.35,<1.0.0 ; python_version >= '3.11'",
+    "langgraph-api>=0.5.35,<0.12.0 ; python_version >= '3.11'",
     "langgraph-runtime-inmem>=0.7 ; python_version >= '3.11'",
 ]
 
@@ -72,15 +72,9 @@ lint.select = [
   "UP", # pyupgrade
   "B",  # flake8-bugbear
   "I",  # isort
-  "PLC0415",  # import-outside-top-level
-  "RUF100",  # unused noqa directive
   "UP", # pyupgrade
 ]
 lint.ignore = ["E501", "B008"]
-# PLC0415 (import-outside-top-level) is enforced in tests only. Library code
-# still has deferred imports that have not been reviewed, so it stays exempt
-# for now.
-lint.per-file-ignores = { "langgraph_cli/**" = ["PLC0415"], "generate_schema.py" = ["PLC0415"] }
 target-version = "py310"
 
 [tool.ty.rules]

libs/cli/tests/unit_tests/test_archive.py

@@ -11,7 +11,6 @@ from langgraph_cli.archive import (
     _tar_filter,
     create_archive,
 )
-from langgraph_cli.config import LocalDeps
 
 # ---------------------------------------------------------------------------
 # _tar_filter
@@ -199,6 +198,7 @@ class TestCreateArchive:
 
     @patch("langgraph_cli.archive._assemble_local_deps")
     def test_yields_archive_with_config(self, mock_deps, tmp_path):
+        from langgraph_cli.config import LocalDeps
 
         config_file = self._make_project(tmp_path)
         mock_deps.return_value = LocalDeps(
@@ -218,6 +218,7 @@ class TestCreateArchive:
 
     @patch("langgraph_cli.archive._assemble_local_deps")
     def test_excludes_pycache(self, mock_deps, tmp_path):
+        from langgraph_cli.config import LocalDeps
 
         config_file = self._make_project(tmp_path)
         mock_deps.return_value = LocalDeps(
@@ -231,6 +232,7 @@ class TestCreateArchive:
 
     @patch("langgraph_cli.archive._assemble_local_deps")
     def test_cleans_up_tmp_dir_on_normal_exit(self, mock_deps, tmp_path):
+        from langgraph_cli.config import LocalDeps
 
         config_file = self._make_project(tmp_path)
         mock_deps.return_value = LocalDeps(
@@ -245,6 +247,7 @@ class TestCreateArchive:
 
     @patch("langgraph_cli.archive._assemble_local_deps")
     def test_cleans_up_tmp_dir_on_exception(self, mock_deps, tmp_path):
+        from langgraph_cli.config import LocalDeps
 
         config_file = self._make_project(tmp_path)
         mock_deps.return_value = LocalDeps(
@@ -261,6 +264,7 @@ class TestCreateArchive:
     @patch("langgraph_cli.archive._assemble_local_deps")
     @patch("langgraph_cli.archive._MAX_SIZE", 10)
     def test_raises_on_oversized_archive(self, mock_deps, tmp_path):
+        from langgraph_cli.config import LocalDeps
 
         config_file = self._make_project(tmp_path)
         mock_deps.return_value = LocalDeps(
@@ -274,6 +278,7 @@ class TestCreateArchive:
     @patch("langgraph_cli.archive._assemble_local_deps")
     def test_handles_extra_contexts(self, mock_deps, tmp_path):
         """Monorepo case: project + sibling dependency directory."""
+        from langgraph_cli.config import LocalDeps
 
         project = tmp_path / "myproject"
         project.mkdir()

libs/cli/tests/unit_tests/test_deploy_helpers.py

@@ -347,6 +347,7 @@ class TestCallHostBackendWithOptionalTenant:
 
     def test_workspace_prompt_blocked_by_no_input(self, monkeypatch):
         """With _no_input=True, 403 requiring workspace should raise ClickException."""
+        import langgraph_cli.deploy as deploy_mod
 
         monkeypatch.setattr(deploy_mod, "_no_input", True)
 
@@ -514,6 +515,7 @@ class TestEmitterTextMode:
 
 class TestCreateHostBackendClientNoInput:
     def test_raises_when_no_api_key_and_no_input(self, monkeypatch, tmp_path):
+        import langgraph_cli.deploy as deploy_mod
 
         monkeypatch.setattr(deploy_mod, "_no_input", True)
         monkeypatch.delenv("LANGSMITH_API_KEY", raising=False)
@@ -528,6 +530,7 @@ class TestCreateHostBackendClientNoInput:
             )
 
     def test_succeeds_with_api_key_in_env(self, monkeypatch, tmp_path):
+        import langgraph_cli.deploy as deploy_mod
 
         monkeypatch.setattr(deploy_mod, "_no_input", True)
         monkeypatch.setenv("LANGSMITH_API_KEY", "lsv2_test")

libs/cli/uv.lock

@@ -158,7 +158,7 @@ name = "blockbuster"
 version = "1.5.26"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "forbiddenfruit", marker = "implementation_name == 'cpython'" },
+    { name = "forbiddenfruit", marker = "python_full_version >= '3.11' and implementation_name == 'cpython'" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/55/e0/dcbab602790a576b0b94108c07e2c048e5897df7cc83722a89582d733987/blockbuster-1.5.26.tar.gz", hash = "sha256:cc3ce8c70fa852a97ee3411155f31e4ad2665cd1c6c7d2f8bb1851dab61dc629", size = 36085, upload-time = "2025-12-05T10:43:47.735Z" }
 wheels = [
@@ -363,14 +363,14 @@ wheels = [
 
 [[package]]
 name = "click"
-version = "8.4.2"
+version = "8.4.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "colorama", marker = "sys_platform == 'win32'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/76/d4/81420972a676e8ffea40450d8c8c92943e7218a78fe9b64359836cc9876b/click-8.4.2.tar.gz", hash = "sha256:9a6cea6e60b17ebe0a44c5cc636d94f09bd66142c1cd7d8b4cd731c4917a15f6", size = 338000, upload-time = "2026-06-24T17:45:15.148Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/9b/98/518d8e5081007684232226f475082b30087d0f585e8457db087298259f49/click-8.4.1.tar.gz", hash = "sha256:918b5633eddf6b41c32d4f454bf0de810065c74e3f7dbf8ee5452f8be88d3e96", size = 353007, upload-time = "2026-05-22T04:08:37.769Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/fb/e2/79c688af8b210d232694e31e59da9f6ec747bae31c3f5946e4e9b98860d5/click-8.4.2-py3-none-any.whl", hash = "sha256:e6f9f66136c816745b9d65817da91d61d957fb16e02e4dcd0552553c5a197b76", size = 119243, upload-time = "2026-06-24T17:45:13.73Z" },
+    { url = "https://files.pythonhosted.org/packages/c7/0d/67e5b4109ea4a837e80daa87c2c696711955e40449a97e8926672534def2/click-8.4.1-py3-none-any.whl", hash = "sha256:482be17c6991b8c19c5429a1e995d9b0efdbb63172824c41f99965dc0ade8ec2", size = 116639, upload-time = "2026-05-22T04:08:35.26Z" },
 ]
 
 [[package]]
@@ -384,11 +384,11 @@ wheels = [
 
 [[package]]
 name = "codespell"
-version = "2.4.3"
+version = "2.4.2"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/80/19/45e941380f69c042b43423513d201e6592346f992394347f5e7174c31407/codespell-2.4.3.tar.gz", hash = "sha256:cbe085e331227b37bb86ef8bddd08dc768c704ee9a07ca869852c093fa2793e2", size = 352773, upload-time = "2026-07-15T11:51:54.159Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/2d/9d/1d0903dff693160f893ca6abcabad545088e7a2ee0a6deae7c24e958be69/codespell-2.4.2.tar.gz", hash = "sha256:3c33be9ae34543807f088aeb4832dfad8cb2dae38da61cac0a7045dd376cfdf3", size = 352058, upload-time = "2026-03-05T18:10:42.936Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/8b/bf/bdb951d34eb169140b546f44be9ec4525d1acefb9eb5572071f5492b19fc/codespell-2.4.3-py3-none-any.whl", hash = "sha256:af2505b335e8573dbd2d384d1c4ef498f4006f4ba2d6fceca01e55b91f52628a", size = 340736, upload-time = "2026-07-15T11:51:52.925Z" },
+    { url = "https://files.pythonhosted.org/packages/42/a1/52fa05533e95fe45bcc09bcf8a503874b1c08f221a4e35608017e0938f55/codespell-2.4.2-py3-none-any.whl", hash = "sha256:97e0c1060cf46bd1d5db89a936c98db8c2b804e1fdd4b5c645e82a1ec6b1f886", size = 353715, upload-time = "2026-03-05T18:10:41.398Z" },
 ]
 
 [[package]]
@@ -405,7 +405,7 @@ name = "croniter"
 version = "6.2.2"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "python-dateutil" },
+    { name = "python-dateutil", marker = "python_full_version >= '3.11'" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/df/de/5832661ed55107b8a09af3f0a2e71e0957226a59eb1dcf0a445cce6daf20/croniter-6.2.2.tar.gz", hash = "sha256:ba60832a5ec8e12e51b8691c3309a113d1cf6526bdf1a48150ce8ec7a532d0ab", size = 113762, upload-time = "2026-03-15T08:43:48.112Z" }
 wheels = [
@@ -414,59 +414,62 @@ wheels = [
 
 [[package]]
 name = "cryptography"
-version = "50.0.0"
+version = "48.0.1"
 source = { registry = "https://pypi.org/simple" }
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     { name = "typing-extensions", marker = "python_full_version < '3.11'" },
 ]
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+sdist = { url = "https://files.pythonhosted.org/packages/12/45/870e7f4bef50e5f53b9f51d4428aee5290eedf58ba443f16b1ebb7ab8e66/cryptography-48.0.1.tar.gz", hash = "sha256:266f4ee051abb2f725b74ef8072b521ce1feacf685a3364fa6a6b45548db791a", size = 832989, upload-time = "2026-06-09T22:32:31.8Z" }
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 ]
 
 [[package]]
@@ -2226,7 +2190,7 @@ name = "typing-inspection"
 version = "0.4.2"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "typing-extensions" },
+    { name = "typing-extensions", marker = "python_full_version >= '3.11'" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/55/e3/70399cb7dd41c10ac53367ae42139cf4b1ca5f36bb3dc6c9d33acdb43655/typing_inspection-0.4.2.tar.gz", hash = "sha256:ba561c48a67c5958007083d386c3295464928b01faa735ab8547c5692e87f464", size = 75949, upload-time = "2025-10-01T02:14:41.687Z" }
 wheels = [
@@ -2314,8 +2278,8 @@ name = "uvicorn"
 version = "0.44.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "click" },
-    { name = "h11" },
+    { name = "click", marker = "python_full_version >= '3.11'" },
+    { name = "h11", marker = "python_full_version >= '3.11'" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/5e/da/6eee1ff8b6cbeed47eeb5229749168e81eb4b7b999a1a15a7176e51410c9/uvicorn-0.44.0.tar.gz", hash = "sha256:6c942071b68f07e178264b9152f1f16dfac5da85880c4ce06366a96d70d4f31e", size = 86947, upload-time = "2026-04-06T09:23:22.826Z" }
 wheels = [
@@ -2419,7 +2383,7 @@ name = "watchfiles"
 version = "1.1.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "anyio" },
+    { name = "anyio", marker = "python_full_version >= '3.11'" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/c2/c9/8869df9b2a2d6c59d79220a4db37679e74f807c559ffe5265e08b227a210/watchfiles-1.1.1.tar.gz", hash = "sha256:a173cb5c16c4f40ab19cecf48a534c409f7ea983ab8fed0741304a1c0a31b3f2", size = 94440, upload-time = "2025-10-14T15:06:21.08Z" }
 wheels = [

libs/langgraph/langgraph/_internal/_pydantic.py

@@ -68,7 +68,7 @@ def _create_root_model(
 
     def schema(
         cls: type[BaseModel],
-        by_alias: bool = True,
+        by_alias: bool = True,  # noqa: FBT001,FBT002
         ref_template: str = DEFAULT_REF_TEMPLATE,
     ) -> dict[str, Any]:
         # Complains about schema not being defined in superclass
@@ -80,7 +80,7 @@ def _create_root_model(
 
     def model_json_schema(
         cls: type[BaseModel],
-        by_alias: bool = True,
+        by_alias: bool = True,  # noqa: FBT001,FBT002
         ref_template: str = DEFAULT_REF_TEMPLATE,
         schema_generator: type[GenerateJsonSchema] = GenerateJsonSchema,
         mode: JsonSchemaMode = "validation",

libs/langgraph/langgraph/_internal/_serde.py

@@ -22,7 +22,7 @@ from pydantic import BaseModel
 from typing_extensions import NotRequired, Required, is_typeddict
 
 try:
-    from langgraph.checkpoint.serde._msgpack import (
+    from langgraph.checkpoint.serde._msgpack import (  # noqa: F401
         STRICT_MSGPACK_ENABLED,
     )
 except ImportError:

libs/langgraph/langgraph/channels/binop.py

@@ -29,25 +29,11 @@ def _strip_extras(t):  # type: ignore[no-untyped-def]
 
 
 def _get_overwrite(value: Any) -> tuple[bool, Any]:
-    """Inspects the given value and returns (is_overwrite, overwrite_value).
-
-    Recognises three forms:
-
-    * The typed `Overwrite` dataclass instance.
-    * The sentinel-keyed `{"__overwrite__": value}` dict form.
-    * The dataclass-erased `{"value": ..., "type": "__overwrite__"}` form that
-      results from JSON-serialising an `Overwrite` (e.g. an `orjson`-encoded
-      state update routed through the LangGraph API server). This keeps the
-      `Overwrite` semantics intact across JSON boundaries that strip dataclass
-      types.
-    """
+    """Inspects the given value and returns (is_overwrite, overwrite_value)."""
     if isinstance(value, Overwrite):
         return True, value.value
-    if isinstance(value, dict):
-        if len(value) == 1 and OVERWRITE in value:
-            return True, value[OVERWRITE]
-        if value.get("type") == OVERWRITE and "value" in value:
-            return True, value["value"]
+    if isinstance(value, dict) and len(value) == 1 and OVERWRITE in value:
+        return True, value[OVERWRITE]
     return False, None
 
 

libs/langgraph/langgraph/channels/delta.py

@@ -172,11 +172,13 @@ class DeltaChannel(Generic[Value], BaseChannel[Any, Any, Any]):
                 overwrite_idx = i
         if overwrite_idx is not None:
             _, overwrite_value = _get_overwrite(values[overwrite_idx])
-            self.value = (
+            base = (
                 _copy.copy(overwrite_value)
                 if overwrite_value is not None
                 else self.typ()
             )
+            remaining = [v for i, v in enumerate(values) if i != overwrite_idx]
+            self.value = self.reducer(base, remaining) if remaining else base
             return True
         base = self.typ() if self.value is MISSING else self.value
         self.value = self.reducer(base, list(values))

libs/langgraph/langgraph/errors.py

@@ -7,7 +7,7 @@ from typing import Any, Literal
 from warnings import warn
 
 # EmptyChannelError is re-exported from langgraph.channels.base
-from langgraph.checkpoint.base import EmptyChannelError
+from langgraph.checkpoint.base import EmptyChannelError  # noqa: F401
 from typing_extensions import deprecated
 
 from langgraph.types import Command, Interrupt

libs/langgraph/langgraph/graph/state.py

@@ -995,7 +995,7 @@ class StateGraph(Generic[StateT, ContextT, InputT, OutputT]):
             Without type hints on the `path` function's return value (e.g., `-> Literal["foo", "__end__"]:`)
             or a path_map, the graph visualization assumes the edge could transition to any node in the graph.
 
-        """
+        """  # noqa: E501
         if self.compiled:
             logger.warning(
                 "Adding an edge to a graph that has already been compiled. This will "

libs/langgraph/langgraph/pregel/_checkpoint.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 import uuid
-from collections.abc import Callable, Iterable, Mapping
+from collections.abc import Callable, Mapping
 from datetime import datetime, timezone
 from typing import Any, cast
 
@@ -14,7 +14,6 @@ from langgraph.checkpoint.base.id import uuid6
 from langgraph.checkpoint.serde.types import _DeltaSnapshot
 
 from langgraph._internal._config import DELTA_MAX_SUPERSTEPS_SINCE_SNAPSHOT
-from langgraph._internal._constants import PUSH
 from langgraph._internal._typing import MISSING
 from langgraph.channels.base import BaseChannel
 from langgraph.channels.delta import DeltaChannel
@@ -71,81 +70,6 @@ def delta_channels_to_snapshot(
     return result
 
 
-def get_updated_channels_from_tasks(
-    run_tasks: Iterable[Any],
-) -> set[str]:
-    """Channel names written by an update_state superstep (excluding PUSH)."""
-    return {c for task in run_tasks for c, _ in task.writes if c != PUSH}
-
-
-def get_delta_channels_from_all_channels(
-    channels: Mapping[str, BaseChannel],
-) -> set[str]:
-    """DeltaChannels to snapshot on the first update_state of a fresh thread."""
-    return {
-        k
-        for k, ch in channels.items()
-        if isinstance(ch, DeltaChannel) and ch.is_available()
-    }
-
-
-def create_metadata_for_update_state_api(
-    channels: Mapping[str, BaseChannel],
-    updated_channels: set[str],
-    *,
-    prev_metadata: Mapping[str, Any] | None,
-) -> dict[str, tuple[int, int]]:
-    """Advance ``counters_since_delta_snapshot`` for update_state on a non-fresh thread.
-
-    Mirrors the per-superstep counter bump in ``_loop._put_checkpoint``.
-    """
-    prev_counters = dict(
-        (prev_metadata or {}).get("counters_since_delta_snapshot") or {}
-    )
-    new_counters: dict[str, tuple[int, int]] = {}
-    for ch_name, ch in channels.items():
-        if not isinstance(ch, DeltaChannel):
-            continue
-        u, s = prev_counters.get(ch_name, (0, 0))
-        s += 1
-        if ch_name in updated_channels:
-            u += 1
-        new_counters[ch_name] = (u, s)
-    return new_counters
-
-
-def create_checkpoint_plan_for_update_state_api(
-    channels: Mapping[str, BaseChannel],
-    updated_channels: set[str],
-    *,
-    step: int,
-    parents: dict[str, Any],
-    saved_metadata: Mapping[str, Any] | None,
-    is_fresh_thread: bool,
-) -> tuple[set[str], dict[str, Any]]:
-    """Return ``(channels_to_snapshot, metadata)`` for an update_state head."""
-    metadata: dict[str, Any] = {
-        "source": "update",
-        "step": step,
-        "parents": parents,
-    }
-    if is_fresh_thread:
-        return get_delta_channels_from_all_channels(channels), metadata
-
-    new_counters = create_metadata_for_update_state_api(
-        channels,
-        updated_channels,
-        prev_metadata=saved_metadata,
-    )
-    channels_to_snapshot = delta_channels_to_snapshot(channels, new_counters)
-    for k in channels_to_snapshot:
-        new_counters[k] = (0, 0)
-    non_zero = {k: v for k, v in new_counters.items() if v != (0, 0)}
-    if non_zero:
-        metadata["counters_since_delta_snapshot"] = non_zero
-    return channels_to_snapshot, metadata
-
-
 def create_checkpoint(
     checkpoint: Checkpoint,
     channels: Mapping[str, BaseChannel] | None,
@@ -178,11 +102,6 @@ def create_checkpoint(
                 continue
             ch = channels[k]
             if k in channels_to_snapshot:
-                # Callers force a full snapshot blob here: exit mode when a
-                # delta channel reaches its snapshot cadence, and update_state
-                # on a fresh thread (no ancestor to replay writes from). The
-                # manual version-bump below only applies to the exit-mode case.
-                #
                 # In exit mode, the snapshot decision is deferred to exit
                 # time (intermediate steps have do_checkpoint=False). The
                 # channel's count may have reached snapshot_frequency over

libs/langgraph/langgraph/pregel/_loop.py

@@ -70,7 +70,6 @@ from langgraph.callbacks import (
     GraphResumeEvent,
 )
 from langgraph.channels.base import BaseChannel
-from langgraph.channels.binop import _get_overwrite
 from langgraph.channels.delta import DeltaChannel
 from langgraph.channels.untracked_value import UntrackedValue
 from langgraph.constants import TAG_HIDDEN
@@ -222,11 +221,6 @@ class PregelLoop:
     # under the saver's `ORDER BY task_id, idx` sorting.
     _exit_delta_writes: list[tuple[int, str, str, Any]] | None = None
 
-    # Delta channels that saw an Overwrite since the last checkpoint. These
-    # channels must snapshot after live update applies overwrite semantics so
-    # sparse replay starts from the same post-overwrite value.
-    _delta_channels_with_overwrite: set[str]
-
     # The checkpoint_config that points at the parent loaded at `__enter__`
     # (or the synthetic-empty checkpoint, on first run). We capture it
     # eagerly because every `_put_checkpoint` advances `self.checkpoint_config`
@@ -683,11 +677,6 @@ class PregelLoop:
     def after_tick(self) -> None:
         # finish superstep
         writes = [w for t in self.tasks.values() for w in t.writes]
-        self._delta_channels_with_overwrite.update(
-            ch
-            for ch, v in writes
-            if isinstance(self.specs.get(ch), DeltaChannel) and _get_overwrite(v)[0]
-        )
         # all tasks have finished
         self.updated_channels = apply_writes(
             self.checkpoint,
@@ -991,11 +980,6 @@ class PregelLoop:
                 manager=None,
                 updated_channels=updated_channels,
             )
-            self._delta_channels_with_overwrite.update(
-                c
-                for c, v in input_writes
-                if isinstance(self.specs.get(c), DeltaChannel) and _get_overwrite(v)[0]
-            )
             # apply input writes
             updated_channels = apply_writes(
                 self.checkpoint,
@@ -1136,7 +1120,6 @@ class PregelLoop:
         # create new checkpoint
         channels_to_snapshot = (
             delta_channels_to_snapshot(self.channels, new_counters)
-            | self._delta_channels_with_overwrite
             if do_checkpoint
             else set()
         )
@@ -1153,8 +1136,6 @@ class PregelLoop:
         )
         for k in channels_to_snapshot:
             new_counters[k] = (0, 0)
-        if do_checkpoint:
-            self._delta_channels_with_overwrite.difference_update(channels_to_snapshot)
         non_zero = {k: v for k, v in new_counters.items() if v != (0, 0)}
         if non_zero:
             self.checkpoint_metadata["counters_since_delta_snapshot"] = non_zero
@@ -1237,10 +1218,7 @@ class PregelLoop:
         counters = dict(
             self.checkpoint_metadata.get("counters_since_delta_snapshot") or {}
         )
-        channels_to_snapshot = (
-            delta_channels_to_snapshot(self.channels, counters)
-            | self._delta_channels_with_overwrite
-        )
+        channels_to_snapshot = delta_channels_to_snapshot(self.channels, counters)
 
         pending = [
             (step, tid, ch, v)
@@ -1684,7 +1662,6 @@ class SyncPregelLoop(PregelLoop, AbstractContextManager):
         )
         self._delta_write_futs = []
         self._error_handler_write_futs = []
-        self._delta_channels_with_overwrite = set()
         self._exit_delta_writes = (
             [] if self.durability == "exit" and self.checkpointer is not None else None
         )
@@ -1942,7 +1919,6 @@ class AsyncPregelLoop(PregelLoop, AbstractAsyncContextManager):
         )
         self._delta_write_futs = []
         self._error_handler_write_futs = []
-        self._delta_channels_with_overwrite = set()
         self._exit_delta_writes = (
             [] if self.durability == "exit" and self.checkpointer is not None else None
         )

libs/langgraph/langgraph/pregel/main.py

@@ -108,6 +108,7 @@ from langgraph.callbacks import (
     get_sync_graph_callback_manager_for_config,
 )
 from langgraph.channels.base import BaseChannel
+from langgraph.channels.delta import DeltaChannel
 from langgraph.channels.topic import Topic
 from langgraph.config import get_config
 from langgraph.constants import END
@@ -132,9 +133,7 @@ from langgraph.pregel._checkpoint import (
     channels_from_checkpoint,
     copy_checkpoint,
     create_checkpoint,
-    create_checkpoint_plan_for_update_state_api,
     empty_checkpoint,
-    get_updated_channels_from_tasks,
 )
 from langgraph.pregel._draw import draw_graph
 from langgraph.pregel._io import map_input, read_channels
@@ -1997,14 +1996,35 @@ class Pregel(
                         },
                     ),
                 )
-            updated_channels = get_updated_channels_from_tasks(run_tasks)
-            if saved is not None:
-                for task_id, task in zip(run_task_ids, run_tasks):
-                    channel_writes = [w for w in task.writes if w[0] != PUSH]
-                    if channel_writes:
-                        checkpointer.put_writes(
-                            checkpoint_config, channel_writes, task_id
-                        )
+            # save task writes
+            has_delta_writes = any(
+                isinstance(channels.get(c), DeltaChannel)
+                for task in run_tasks
+                for c, _ in task.writes
+            )
+            should_put_writes = saved is not None or has_delta_writes
+
+            if saved is None and has_delta_writes:
+                # If there is no previous checkpoint, we need to create a stub checkpoint
+                # so the first delta writes has a parent to anchor under.
+                # This is the model of DeltaChannel.
+                stub = empty_checkpoint()
+                checkpoint_config = checkpointer.put(
+                    patch_configurable(
+                        checkpoint_config, {CONFIG_KEY_CHECKPOINT_ID: None}
+                    ),
+                    stub,
+                    {"source": "update", "step": -1, "parents": {}},
+                    {},
+                )
+
+            for task_id, task in zip(run_task_ids, run_tasks):
+                # channel writes are saved to current checkpoint
+                channel_writes = [w for w in task.writes if w[0] != PUSH]
+                if should_put_writes and channel_writes:
+                    checkpointer.put_writes(checkpoint_config, channel_writes, task_id)
+
+            # apply to checkpoint and save
             apply_writes(
                 checkpoint,
                 channels,
@@ -2012,35 +2032,21 @@ class Pregel(
                 checkpointer.get_next_version,
                 self.trigger_to_nodes,
             )
-            channels_to_snapshot, checkpoint_metadata = (
-                create_checkpoint_plan_for_update_state_api(
-                    channels,
-                    updated_channels,
-                    step=step + 1,
-                    parents=saved.metadata.get("parents", {}) if saved else {},
-                    saved_metadata=saved.metadata if saved else None,
-                    is_fresh_thread=saved is None,
-                )
-            )
-            checkpoint = create_checkpoint(
-                checkpoint,
-                channels,
-                step + 1,
-                updated_channels=updated_channels if channels_to_snapshot else None,
-                get_next_version=checkpointer.get_next_version
-                if channels_to_snapshot
-                else None,
-                channels_to_snapshot=channels_to_snapshot,
-            )
+            checkpoint = create_checkpoint(checkpoint, channels, step + 1)
             next_config = checkpointer.put(
                 checkpoint_config,
                 checkpoint,
-                checkpoint_metadata,
+                {
+                    "source": "update",
+                    "step": step + 1,
+                    "parents": saved.metadata.get("parents", {}) if saved else {},
+                },
                 get_new_channel_versions(
                     checkpoint_previous_versions, checkpoint["channel_versions"]
                 ),
             )
             for task_id, task in zip(run_task_ids, run_tasks):
+                # save push writes
                 if push_writes := [w for w in task.writes if w[0] == PUSH]:
                     checkpointer.put_writes(next_config, push_writes, task_id)
 
@@ -2457,14 +2463,36 @@ class Pregel(
                         },
                     ),
                 )
-            updated_channels = get_updated_channels_from_tasks(run_tasks)
-            if saved is not None:
-                for task_id, task in zip(run_task_ids, run_tasks):
-                    channel_writes = [w for w in task.writes if w[0] != PUSH]
-                    if channel_writes:
-                        await checkpointer.aput_writes(
-                            checkpoint_config, channel_writes, task_id
-                        )
+            # save task writes
+            has_delta_writes = any(
+                isinstance(channels.get(c), DeltaChannel)
+                for task in run_tasks
+                for c, _ in task.writes
+            )
+            should_put_writes = saved is not None or has_delta_writes
+
+            if saved is None and has_delta_writes:
+                # If there is no previous checkpoint, we need to create a stub checkpoint
+                # so the first delta writes has a parent to anchor under.
+                # This is the model of DeltaChannel.
+                stub = empty_checkpoint()
+                checkpoint_config = await checkpointer.aput(
+                    patch_configurable(
+                        checkpoint_config, {CONFIG_KEY_CHECKPOINT_ID: None}
+                    ),
+                    stub,
+                    {"source": "update", "step": -1, "parents": {}},
+                    {},
+                )
+
+            for task_id, task in zip(run_task_ids, run_tasks):
+                # channel writes are saved to current checkpoint
+                channel_writes = [w for w in task.writes if w[0] != PUSH]
+                if should_put_writes and channel_writes:
+                    await checkpointer.aput_writes(
+                        checkpoint_config, channel_writes, task_id
+                    )
+            # apply to checkpoint and save
             apply_writes(
                 checkpoint,
                 channels,
@@ -2472,35 +2500,22 @@ class Pregel(
                 checkpointer.get_next_version,
                 self.trigger_to_nodes,
             )
-            channels_to_snapshot, checkpoint_metadata = (
-                create_checkpoint_plan_for_update_state_api(
-                    channels,
-                    updated_channels,
-                    step=step + 1,
-                    parents=saved.metadata.get("parents", {}) if saved else {},
-                    saved_metadata=saved.metadata if saved else None,
-                    is_fresh_thread=saved is None,
-                )
-            )
-            checkpoint = create_checkpoint(
-                checkpoint,
-                channels,
-                step + 1,
-                updated_channels=updated_channels if channels_to_snapshot else None,
-                get_next_version=checkpointer.get_next_version
-                if channels_to_snapshot
-                else None,
-                channels_to_snapshot=channels_to_snapshot,
-            )
+            checkpoint = create_checkpoint(checkpoint, channels, step + 1)
+            # save checkpoint, after applying writes
             next_config = await checkpointer.aput(
                 checkpoint_config,
                 checkpoint,
-                checkpoint_metadata,
+                {
+                    "source": "update",
+                    "step": step + 1,
+                    "parents": saved.metadata.get("parents", {}) if saved else {},
+                },
                 get_new_channel_versions(
                     checkpoint_previous_versions, checkpoint["channel_versions"]
                 ),
             )
             for task_id, task in zip(run_task_ids, run_tasks):
+                # save push writes
                 if push_writes := [w for w in task.writes if w[0] == PUSH]:
                     await checkpointer.aput_writes(next_config, push_writes, task_id)
             return patch_checkpoint_map(next_config, saved.metadata if saved else None)
@@ -3512,7 +3527,7 @@ class Pregel(
         control: RunControl | None = None,
         transformers: Sequence[Callable[[tuple[str, ...]], Any]] | None = None,
         **kwargs: Any,
-    ) -> GraphRunStream:
+    ) -> Any:
         """Internal v3 sync streaming implementation. Public entry: stream_events(version='v3').
 
         Extra keyword arguments are forwarded to the underlying ``stream(...)``
@@ -3568,7 +3583,7 @@ class Pregel(
         control: RunControl | None = None,
         transformers: Sequence[Callable[[tuple[str, ...]], Any]] | None = None,
         **kwargs: Any,
-    ) -> AsyncGraphRunStream:
+    ) -> Any:
         """Internal v3 async streaming implementation. Public entry: astream_events(version='v3').
 
         Extra keyword arguments are forwarded to the underlying ``astream(...)``
@@ -3633,7 +3648,7 @@ class Pregel(
         control: RunControl | None = None,
         transformers: Sequence[Callable[[tuple[str, ...]], Any]] | None = None,
         **kwargs: Any,
-    ) -> GraphRunStream: ...
+    ) -> Any: ...
 
     def stream_events(
         self,
@@ -3738,7 +3753,7 @@ class Pregel(
         control: RunControl | None = None,
         transformers: Sequence[Callable[[tuple[str, ...]], Any]] | None = None,
         **kwargs: Any,
-    ) -> Awaitable[AsyncGraphRunStream]: ...
+    ) -> Awaitable[Any]: ...
 
     def astream_events(
         self,

libs/langgraph/langgraph/stream/run_stream.py

@@ -12,13 +12,7 @@ from langgraph.stream._mux import StreamMux
 from langgraph.stream._types import ProtocolEvent
 
 if TYPE_CHECKING:
-    from langchain_core.language_models.chat_model_stream import (
-        AsyncChatModelStream,
-        ChatModelStream,
-    )
-
-    from langgraph.stream.stream_channel import StreamChannel
-    from langgraph.stream.transformers import LifecyclePayload, SubgraphStatus
+    from langgraph.stream.transformers import SubgraphStatus
 
 
 def _drive_until_done(pump: Callable[[], bool]) -> None:
@@ -54,16 +48,6 @@ class GraphRunStream:
         experimental and may change.
     """
 
-    # Native projections always registered by `stream_events(version="v3")`.
-    # Attached dynamically by the `setattr` loop in `__init__`; declared here
-    # so type checkers see them. Opt-in native projections (`updates`,
-    # `custom`, `checkpoints`, `debug`, `tasks`) are only present when their
-    # transformer is registered, so they are reached via `extensions[...]`.
-    values: StreamChannel[dict[str, Any]]
-    messages: StreamChannel[ChatModelStream]
-    lifecycle: StreamChannel[LifecyclePayload]
-    subgraphs: StreamChannel[SubgraphRunStream]
-
     def __init__(
         self,
         graph_iter: Iterator[Any] | None,
@@ -345,16 +329,6 @@ class AsyncGraphRunStream:
         experimental and may change.
     """
 
-    # Native projections always registered by `astream_events(version="v3")`.
-    # Attached dynamically by the `setattr` loop in `__init__`; declared here
-    # so type checkers see them. Opt-in native projections (`updates`,
-    # `custom`, `checkpoints`, `debug`, `tasks`) are only present when their
-    # transformer is registered, so they are reached via `extensions[...]`.
-    values: StreamChannel[dict[str, Any]]
-    messages: StreamChannel[AsyncChatModelStream]
-    lifecycle: StreamChannel[LifecyclePayload]
-    subgraphs: StreamChannel[AsyncSubgraphRunStream]
-
     def __init__(
         self,
         graph_aiter: AsyncIterator[Any] | None,

libs/langgraph/langgraph/types.py

@@ -976,9 +976,3 @@ class Overwrite:
 
     value: Any
     """The value to write directly to the channel, bypassing any reducer."""
-
-    type: Literal["__overwrite__"] = "__overwrite__"
-    """Discriminator field. Lets the channel reducer recognise an `Overwrite`
-    even after its dataclass form is JSON-serialised and the typed instance
-    is lost (e.g. an `orjson`-encoded state update routed through the
-    LangGraph API server)."""

libs/langgraph/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "langgraph"
-version = "1.2.10"
+version = "1.2.6"
 description = "Building stateful, multi-actor applications with LLMs"
 authors = []
 requires-python = ">=3.10"
@@ -89,12 +89,8 @@ langgraph-sdk = { path = "../sdk-py", editable = true }
 langgraph-cli = { path = "../cli", editable = true }
 
 [tool.ruff]
-lint.select = [ "E", "F", "I", "PLC0415", "RUF100", "TID251", "UP" ]
+lint.select = [ "E", "F", "I", "TID251", "UP" ]
 lint.ignore = [ "E501" ]
-# PLC0415 (import-outside-top-level) is enforced in tests only. Library code
-# still has deferred imports that have not been reviewed, so it stays exempt
-# for now.
-lint.per-file-ignores = { "langgraph/**" = ["PLC0415"] }
 line-length = 88
 indent-width = 4
 extend-include = ["*.ipynb"]

libs/langgraph/tests/memory_assert.py

@@ -1,6 +1,5 @@
 import os
 import tempfile
-import time
 from collections import defaultdict
 from functools import partial
 from typing import Any
@@ -74,6 +73,8 @@ class MemorySaverAssertImmutable(InMemorySaver):
         new_versions: ChannelVersions,
     ) -> None:
         if self.put_sleep:
+            import time
+
             time.sleep(self.put_sleep)
         # assert checkpoint hasn't been modified since last written
         thread_id = config["configurable"]["thread_id"]

libs/langgraph/tests/test_channels.py

@@ -2,16 +2,14 @@ import operator
 from collections.abc import Sequence
 from typing import Annotated
 
-import orjson
 import pytest
 from langchain_core.messages import AIMessage, HumanMessage, RemoveMessage
 from langgraph.checkpoint.memory import InMemorySaver
 from langgraph.checkpoint.serde.types import _DeltaSnapshot
 from typing_extensions import NotRequired, TypedDict
 
-from langgraph._internal._constants import OVERWRITE
 from langgraph._internal._typing import MISSING
-from langgraph.channels.binop import BinaryOperatorAggregate, _get_overwrite
+from langgraph.channels.binop import BinaryOperatorAggregate
 from langgraph.channels.delta import DeltaChannel
 from langgraph.channels.last_value import LastValue
 from langgraph.channels.topic import Topic
@@ -188,43 +186,6 @@ def test_delta_channel_overwrite() -> None:
     assert ch.get()[0].content == "new"
 
 
-def test_overwrite_dataclass_form_survives_json_roundtrip() -> None:
-    """`Overwrite` serialised with `orjson` collapses to a plain dict but
-    must still be recognised as an overwrite by the channel reducer.
-
-    Without the `type` discriminator the dataclass-erased shape (`{"value":
-    ...}`) is indistinguishable from a literal channel value, and downstream
-    reducers raise `MESSAGE_COERCION_FAILURE` (or similar) on read.
-    """
-
-    ow = Overwrite(value=[HumanMessage(content="new", id="h2")])
-    erased = orjson.loads(orjson.dumps(ow, default=lambda o: o.model_dump()))
-
-    assert erased["type"] == OVERWRITE
-    is_overwrite, value = _get_overwrite(erased)
-    assert is_overwrite
-    assert isinstance(value, list)
-    assert value[0]["content"] == "new"
-
-
-def test_overwrite_sentinel_dict_still_recognised() -> None:
-    """The pre-existing `{"__overwrite__": value}` dict form continues to be
-    recognised. This is the canonical sentinel emitted by producers that do
-    not have an `Overwrite` dataclass available."""
-
-    is_overwrite, value = _get_overwrite({OVERWRITE: ["b"]})
-    assert is_overwrite
-    assert value == ["b"]
-
-
-def test_overwrite_non_matching_dict_not_recognised() -> None:
-    """Dicts that resemble the erased shape but do not carry the
-    `__overwrite__` discriminator must not be misclassified as overwrites."""
-
-    assert _get_overwrite({"value": ["b"]}) == (False, None)
-    assert _get_overwrite({"type": "human", "value": "hi"}) == (False, None)
-
-
 def test_delta_channel_remove_message_and_replay() -> None:
     """RemoveMessage must round-trip correctly when writes are replayed."""
     spec = DeltaChannel(_messages_delta_reducer, list)
@@ -436,93 +397,6 @@ def test_delta_channel_inmemory_saver_assembles_writes() -> None:
     assert len(state.values["messages"]) == 4  # 2 human + 2 AI
 
 
-def test_delta_channel_overwrite_superstep_snapshots() -> None:
-    def reducer(state: list[str], writes: Sequence[list[str]]) -> list[str]:
-        result = list(state)
-        for write in writes:
-            result.extend(write)
-        return result
-
-    class State(TypedDict):
-        items: Annotated[
-            list[str], DeltaChannel(reducer, list, snapshot_frequency=1000)
-        ]
-
-    def node_a(state: State) -> dict:
-        return {"items": ["a"]}
-
-    def node_b(state: State) -> dict:
-        return {"items": Overwrite(["b"])}
-
-    def node_c(state: State) -> dict:
-        return {"items": ["c"]}
-
-    builder = StateGraph(State)
-    builder.add_node("node_a", node_a)
-    builder.add_node("node_b", node_b)
-    builder.add_node("node_c", node_c)
-    builder.add_edge(START, "node_a")
-    builder.add_edge("node_a", "node_b")
-    builder.add_edge("node_a", "node_c")
-
-    saver = InMemorySaver()
-    graph = builder.compile(checkpointer=saver)
-    config = {"configurable": {"thread_id": "overwrite-snapshot"}}
-
-    result = graph.invoke({"items": ["START"]}, config)
-    assert result == {"items": ["b"]}
-
-    saved = saver.get_tuple(config)
-    assert saved is not None
-    snapshot = saved.checkpoint["channel_values"].get("items")
-    assert isinstance(snapshot, _DeltaSnapshot)
-    assert snapshot.value == ["b"]
-    assert saved.metadata.get("counters_since_delta_snapshot", {}).get("items") is None
-
-
-def test_delta_channel_replay_after_overwrite_snapshot() -> None:
-    def reducer(state: list[str], writes: Sequence[list[str]]) -> list[str]:
-        result = list(state)
-        for write in writes:
-            result.extend(write)
-        return result
-
-    class State(TypedDict):
-        items: Annotated[
-            list[str], DeltaChannel(reducer, list, snapshot_frequency=1000)
-        ]
-
-    calls = 0
-
-    def node(state: State) -> dict:
-        nonlocal calls
-        calls += 1
-        if calls == 1:
-            return {"items": Overwrite(["reset"])}
-        return {"items": ["after"]}
-
-    builder = StateGraph(State)
-    builder.add_node("node", node)
-    builder.add_edge(START, "node")
-
-    saver = InMemorySaver()
-    graph = builder.compile(checkpointer=saver)
-    config = {"configurable": {"thread_id": "overwrite-replay"}}
-
-    assert graph.invoke({"items": ["before"]}, config) == {"items": ["reset"]}
-    first_saved = saver.get_tuple(config)
-    assert first_saved is not None
-    assert isinstance(
-        first_saved.checkpoint["channel_values"].get("items"), _DeltaSnapshot
-    )
-
-    assert graph.invoke({"items": []}, config) == {"items": ["reset", "after"]}
-    second_saved = saver.get_tuple(config)
-    assert second_saved is not None
-    assert "items" not in second_saved.checkpoint["channel_values"]
-    assert graph.get_state(config).values == {"items": ["reset", "after"]}
-
-
 # ---------------------------------------------------------------------------
 # DeltaChannel — dict reducer
 # ---------------------------------------------------------------------------

libs/langgraph/tests/test_config_async.py

@@ -24,7 +24,7 @@ class _TrackingCallback(BaseCallbackHandler):
     def __init__(self) -> None:
         self.called = False
 
-    def on_chain_start(self, *args, **kwargs) -> None:
+    def on_chain_start(self, *args, **kwargs) -> None:  # noqa: ANN002, ANN003
         self.called = True
 
 
@@ -55,7 +55,7 @@ async def test_with_config_configurable_preserved_on_invoke() -> None:
     builder = StateGraph(dict)
     captured: dict = {}
 
-    def node(state, config):
+    def node(state, config):  # noqa: ANN001
         captured.update(config.get("configurable") or {})
         return state
 
@@ -79,7 +79,7 @@ async def test_with_config_metadata_preserved_on_invoke() -> None:
     builder = StateGraph(dict)
     captured: dict = {}
 
-    def node(state, config):
+    def node(state, config):  # noqa: ANN001
         captured.update(config.get("metadata") or {})
         return state
 
@@ -104,7 +104,7 @@ async def test_with_config_tags_preserved_on_invoke() -> None:
     builder = StateGraph(dict)
     captured: list = []
 
-    def node(state, config):
+    def node(state, config):  # noqa: ANN001
         captured.extend(config.get("tags") or [])
         return state
 

libs/langgraph/tests/test_delta_channel_benchmark.py

@@ -220,7 +220,7 @@ def _checkpointers() -> list[tuple[str, Any]]:
     result: list[tuple[str, Any]] = [("InMemory", None)]
     if _POSTGRES_AVAILABLE:
         try:
-            import psycopg  # noqa: PLC0415
+            import psycopg
 
             psycopg.connect(_POSTGRES_URI).close()
             result.append(("Postgres", "postgres"))

libs/langgraph/tests/test_delta_channel_parallel_order.py

@@ -1,184 +0,0 @@
-"""Tests that `DeltaChannel` replay preserves live parallel-write order.
-
-Regression suite for #8382.
-
-`apply_writes` sorts a super-step's tasks by `task_path_str(task.path[:3])`
-before handing their values to `channel.update`, so the order a reducer sees is
-deterministic and independent of which parallel task finishes first. Replay has
-to recover that same order. Ordering a checkpoint's writes by `(task_id, idx)`
-does not: `task_id` is a hash of the path, so for two or more tasks writing one
-`DeltaChannel` in a single super-step it yields an effectively arbitrary
-permutation. Reducers are required to be batching-invariant, not
-order-invariant, so the permutation changes the reconstructed value.
-
-Every test runs against the full `async_checkpointer` matrix — memory, sqlite,
-and postgres in three pool modes — because each saver reconstructs delta
-channels through its own `aget_delta_channel_history` override rather than a
-shared code path, and the three stored `task_path` differently before this fix.
-"""
-
-from itertools import pairwise
-from typing import Annotated, Any
-
-import pytest
-from langgraph.checkpoint.base import BaseCheckpointSaver
-from typing_extensions import TypedDict
-
-from langgraph.channels.delta import DeltaChannel
-from langgraph.graph import END, START, StateGraph
-
-pytestmark = pytest.mark.anyio
-
-# Node names double as the values written. They are listed in sorted order,
-# which is also the order live execution applies them: each node is a PULL task
-# whose path is `("__pregel_pull", name)`, so sorting paths sorts by name.
-FAN_OUT_NAMES = ["a", "b", "c", "d", "e", "f", "g", "h"]
-
-
-def _append_reducer(current: list, updates: list) -> list:
-    """Order-sensitive list accumulation, as in the `DeltaChannel` docstring."""
-    result = list(current)
-    for update in updates:
-        if isinstance(update, list):
-            result.extend(update)
-        else:
-            result.append(update)
-    return result
-
-
-def _build_graph(checkpointer: BaseCheckpointSaver, *, sequential: bool = False) -> Any:
-    """Compile a `DeltaChannel`-backed `items` graph over `FAN_OUT_NAMES`.
-
-    By default every node is wired off `START`, so they all write `items` in one
-    super-step — the shape #8382 is about. `sequential=True` chains them
-    instead, giving one writer per super-step as a control.
-
-    `snapshot_frequency` is far above the number of updates these tests make, so
-    no snapshot is ever written and the value has to come from replaying
-    ancestor writes — the path under test.
-    """
-
-    class State(TypedDict):
-        items: Annotated[
-            list, DeltaChannel(_append_reducer, list, snapshot_frequency=10_000)
-        ]
-
-    def make_node(label: str) -> Any:
-        def node(state: State) -> dict:
-            return {"items": [label]}
-
-        return node
-
-    builder = StateGraph(State)
-    for name in FAN_OUT_NAMES:
-        builder.add_node(name, make_node(name))
-    if sequential:
-        for source, target in pairwise([START, *FAN_OUT_NAMES, END]):
-            builder.add_edge(source, target)
-    else:
-        for name in FAN_OUT_NAMES:
-            builder.add_edge(START, name)
-            builder.add_edge(name, END)
-    return builder.compile(checkpointer=checkpointer)
-
-
-async def test_get_state_matches_live_invoke_order(
-    async_checkpointer: BaseCheckpointSaver,
-) -> None:
-    """A cold read reports the same order `invoke` returned."""
-    graph = _build_graph(async_checkpointer)
-    config = {"configurable": {"thread_id": "1"}}
-
-    live = (await graph.ainvoke({"items": []}, config))["items"]
-    replayed = (await graph.aget_state(config)).values["items"]
-
-    assert live == FAN_OUT_NAMES
-    assert replayed == live
-
-
-async def test_continuing_thread_preserves_committed_prefix(
-    async_checkpointer: BaseCheckpointSaver,
-) -> None:
-    """A second run appends without reordering the first run's items.
-
-    The more serious half of #8382: the reordered replay becomes the base that
-    later writes build on, so the corruption is persisted rather than confined
-    to a read.
-    """
-    graph = _build_graph(async_checkpointer)
-    config = {"configurable": {"thread_id": "1"}}
-
-    first = (await graph.ainvoke({"items": []}, config))["items"]
-    second = (await graph.ainvoke({"items": []}, config))["items"]
-
-    assert second == first + first
-    assert (await graph.aget_state(config)).values["items"] == second
-
-
-async def test_order_stable_across_many_supersteps(
-    async_checkpointer: BaseCheckpointSaver,
-) -> None:
-    """Order holds over a chain spanning several supersteps with no snapshot."""
-    runs = 5
-    graph = _build_graph(async_checkpointer)
-    config = {"configurable": {"thread_id": "1"}}
-
-    for _ in range(runs):
-        live = (await graph.ainvoke({"items": []}, config))["items"]
-
-    assert live == FAN_OUT_NAMES * runs
-    assert (await graph.aget_state(config)).values["items"] == live
-
-
-async def test_state_history_reports_live_order_at_every_step(
-    async_checkpointer: BaseCheckpointSaver,
-) -> None:
-    """Every checkpoint in the history replays in live order.
-
-    Guards the walk at intermediate depths, not just from the head. Entries are
-    checked against the order live execution produced rather than against the
-    replayed head — comparing replayed values only to each other passes even
-    when every one of them is permuted the same wrong way.
-    """
-    runs = 3
-    graph = _build_graph(async_checkpointer)
-    config = {"configurable": {"thread_id": "1"}}
-
-    for _ in range(runs):
-        await graph.ainvoke({"items": []}, config)
-    live_expected = FAN_OUT_NAMES * runs
-
-    seen = [
-        snapshot.values["items"]
-        async for snapshot in graph.aget_state_history(config)
-        if "items" in snapshot.values
-    ]
-
-    assert seen, "expected at least one snapshot carrying `items`"
-    # The deepest entry is the head, so the matrix below covers the full value
-    # as well as every partial prefix.
-    assert max(len(values) for values in seen) == len(live_expected)
-    for values in seen:
-        assert values == live_expected[: len(values)], (
-            f"history entry {values} is not the live order "
-            f"{live_expected[: len(values)]}"
-        )
-
-
-async def test_sequential_graph_unaffected(
-    async_checkpointer: BaseCheckpointSaver,
-) -> None:
-    """One writer per super-step replays correctly with or without the fix.
-
-    Control: it localises #8382 to multiple tasks writing one channel in a
-    single super-step, rather than to delta replay in general. This is the one
-    test here that passes on main.
-    """
-    graph = _build_graph(async_checkpointer, sequential=True)
-    config = {"configurable": {"thread_id": "1"}}
-
-    live = (await graph.ainvoke({"items": []}, config))["items"]
-    replayed = (await graph.aget_state(config)).values["items"]
-
-    assert live == FAN_OUT_NAMES
-    assert replayed == live

libs/langgraph/tests/test_delta_channel_update_state.py

@@ -1,19 +1,20 @@
 """Tests for `update_state` / `aupdate_state` against `DeltaChannel`.
 
-Regression suite for deepagents#3774 and Postgres read-path compatibility.
-
-Fresh-thread ``update_state`` force-snapshots DeltaChannels (1.2.8). Non-fresh
-``update_state`` persists ``checkpoint_writes`` on the parent, advances
-``counters_since_delta_snapshot`` on the new head, and snapshots when a
-channel reaches ``snapshot_frequency`` (mirroring normal run cadence).
+Originally a regression suite for deepagents#3774 — `update_state` on a *fresh*
+thread silently dropped the first write to a `DeltaChannel`-backed channel
+because channel writes were only persisted when a previous checkpoint existed.
+Fixed by lazily persisting an empty stub checkpoint on a fresh thread so the
+first write has a parent to anchor under (mirrors the exit-mode lazy-stub
+pattern in `_loop._put_exit_delta_writes`).
 
 Coverage:
 
-* fresh-thread regression: single ``update_state`` writes a message and reads back
-* non-fresh thread: ``update_state`` after ``invoke``, after another ``update_state``,
-  and ``bulk_update_state`` with multiple per-superstep updates
-* update-by-id end-to-end via ``update_state`` (DeltaChannel reducer semantics)
-* fresh-thread head is snapshotted; non-fresh heads carry delta replay counters
+* fresh-thread regression: single `update_state` writes a message and reads back
+* non-fresh thread: `update_state` after `invoke`, after another `update_state`,
+  and `bulk_update_state` with multiple per-superstep updates
+* update-by-id end-to-end via `update_state` (DeltaChannel reducer semantics)
+* state-history chain shape on a fresh thread (lazy stub + update checkpoint
+  with correct parent linking)
 """
 
 from typing import Annotated, Any
@@ -21,31 +22,22 @@ from typing import Annotated, Any
 import pytest
 from langchain_core.messages import HumanMessage
 from langgraph.checkpoint.memory import InMemorySaver
-from langgraph.checkpoint.serde.types import _DeltaSnapshot
 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
-from langgraph.types import StateUpdate
 
 pytestmark = pytest.mark.anyio
 
 
-def _build_graph(
-    checkpointer: InMemorySaver,
-    *,
-    two_nodes: bool = False,
-    snapshot_frequency: int = 1000,
-) -> Any:
+def _build_graph(checkpointer: InMemorySaver, *, two_nodes: bool = False) -> Any:
     """Compile a minimal DeltaChannel-backed `messages` graph.
 
     `two_nodes=True` adds a second writer node so `bulk_update_state` can route
     distinct updates to different `as_node` values within a single superstep.
     """
-    channel = DeltaChannel(
-        _messages_delta_reducer, snapshot_frequency=snapshot_frequency
-    )
+    channel = DeltaChannel(_messages_delta_reducer)
     State = TypedDict("State", {"messages": Annotated[list, channel]})  # type: ignore[call-overload]  # noqa: UP013
 
     def model(state: dict) -> dict:
@@ -95,30 +87,14 @@ async def test_aupdate_state_fresh_thread_delta_channel() -> None:
     assert [m.content for m in state.values["messages"]] == ["hello"]
 
 
-def test_fresh_update_state_head_snapshots_delta_channel() -> None:
-    saver = InMemorySaver()
-    graph = _build_graph(saver)
-    config = {"configurable": {"thread_id": "fresh-head-snapshot"}}
-
-    graph.update_state(
-        config,
-        {"messages": [HumanMessage(content="hello", id="m1")]},
-        as_node="model",
-    )
-
-    head = saver.get_tuple(config)
-    assert head is not None
-    assert isinstance(head.checkpoint["channel_values"].get("messages"), _DeltaSnapshot)
-    assert head.metadata is not None
-    assert "counters_since_delta_snapshot" not in head.metadata
-
-
 # ---------------------------------------------------------------------------
 # Non-fresh thread: update_state after invoke
 # ---------------------------------------------------------------------------
 
 
 def test_update_state_after_invoke_delta_channel() -> None:
+    """The non-fresh-thread path was already working before the fix; pin it
+    down so the lazy-stub change for fresh threads doesn't regress it."""
     saver = InMemorySaver()
     graph = _build_graph(saver)
     config = {"configurable": {"thread_id": "after-invoke-sync"}}
@@ -134,12 +110,6 @@ def test_update_state_after_invoke_delta_channel() -> None:
     assert [m.content for m in state.values["messages"]] == ["seed", "appended"]
     assert [m.id for m in state.values["messages"]] == ["m1", "m2"]
 
-    head = saver.get_tuple(config)
-    assert head is not None
-    assert "messages" not in head.checkpoint["channel_values"]
-    assert head.metadata is not None
-    assert head.metadata["counters_since_delta_snapshot"]["messages"] == [2, 4]
-
 
 async def test_aupdate_state_after_invoke_delta_channel() -> None:
     saver = InMemorySaver()
@@ -163,6 +133,9 @@ async def test_aupdate_state_after_invoke_delta_channel() -> None:
 
 
 def test_consecutive_update_states_delta_channel() -> None:
+    """First update_state lazily persists a stub; the second sees a real
+    parent (`saved is not None`) and takes the original write path. Both
+    messages must round-trip in chronological order."""
     saver = InMemorySaver()
     graph = _build_graph(saver)
     config = {"configurable": {"thread_id": "consecutive-sync"}}
@@ -182,39 +155,6 @@ def test_consecutive_update_states_delta_channel() -> None:
     assert [m.content for m in state.values["messages"]] == ["first", "second"]
     assert [m.id for m in state.values["messages"]] == ["m1", "m2"]
 
-    head = saver.get_tuple(config)
-    assert head is not None
-    assert "messages" not in head.checkpoint["channel_values"]
-    assert head.metadata is not None
-    assert head.metadata["counters_since_delta_snapshot"]["messages"] == [1, 1]
-
-
-def test_update_state_snapshots_at_frequency() -> None:
-    """Non-fresh update_state snapshots when counters reach snapshot_frequency."""
-    saver = InMemorySaver()
-    graph = _build_graph(saver, snapshot_frequency=1)
-    config = {"configurable": {"thread_id": "snapshot-at-freq"}}
-
-    graph.update_state(
-        config,
-        {"messages": [HumanMessage(content="first", id="m1")]},
-        as_node="model",
-    )
-    graph.update_state(
-        config,
-        {"messages": [HumanMessage(content="second", id="m2")]},
-        as_node="model",
-    )
-
-    state = graph.get_state(config)
-    assert [m.content for m in state.values["messages"]] == ["first", "second"]
-
-    head = saver.get_tuple(config)
-    assert head is not None
-    assert isinstance(head.checkpoint["channel_values"].get("messages"), _DeltaSnapshot)
-    assert head.metadata is not None
-    assert "counters_since_delta_snapshot" not in head.metadata
-
 
 async def test_aconsecutive_update_states_delta_channel() -> None:
     saver = InMemorySaver()
@@ -278,6 +218,7 @@ def test_bulk_update_state_multi_task_per_superstep_delta_channel() -> None:
     different `StateUpdate`s targeting the same node — otherwise both share
     the deterministic interrupt-derived id and collide in the saver.
     """
+    from langgraph.types import StateUpdate
 
     saver = InMemorySaver()
     graph = _build_graph(saver)
@@ -311,14 +252,14 @@ def test_bulk_update_state_multi_task_per_superstep_delta_channel() -> None:
 
 
 # ---------------------------------------------------------------------------
-# Public-API observation of fresh-thread checkpoint shape
+# Public-API observation of the lazy-stub mechanism
 # ---------------------------------------------------------------------------
 
 
 def test_state_history_chain_after_fresh_update_state_delta_channel() -> None:
-    """A fresh-thread `update_state` should produce a single self-contained
-    checkpoint visible via `get_state_history`: step=0, `source='update'`,
-    no parent, with the DeltaChannel value snapshotted inline."""
+    """A fresh-thread `update_state` should produce two checkpoints visible
+    via `get_state_history`: a stub (step=-1, no parent) and the update
+    (step=0, parent=stub). Both attributed `source='update'`."""
     saver = InMemorySaver()
     graph = _build_graph(saver)
     config = {"configurable": {"thread_id": "history-chain"}}
@@ -329,12 +270,25 @@ def test_state_history_chain_after_fresh_update_state_delta_channel() -> None:
         as_node="model",
     )
 
+    # Newest first per `get_state_history` ordering.
     history = list(graph.get_state_history(config))
-    assert len(history) == 1
+    assert len(history) == 2
+
+    update_snapshot, stub_snapshot = history
 
-    (update_snapshot,) = history
     assert update_snapshot.metadata is not None
     assert update_snapshot.metadata["source"] == "update"
     assert update_snapshot.metadata["step"] == 0
-    assert update_snapshot.parent_config is None
     assert [m.content for m in update_snapshot.values["messages"]] == ["hello"]
+
+    assert stub_snapshot.metadata is not None
+    assert stub_snapshot.metadata["source"] == "update"
+    assert stub_snapshot.metadata["step"] == -1
+    assert stub_snapshot.parent_config is None
+
+    # The update checkpoint's parent is the stub.
+    assert update_snapshot.parent_config is not None
+    assert (
+        update_snapshot.parent_config["configurable"]["checkpoint_id"]
+        == stub_snapshot.config["configurable"]["checkpoint_id"]
+    )

libs/langgraph/tests/test_deprecation.py

@@ -88,13 +88,13 @@ def test_constants_deprecation() -> None:
         LangGraphDeprecatedSinceV10,
         match="Importing Send from langgraph.constants is deprecated. Please use 'from langgraph.types import Send' instead.",
     ):
-        from langgraph.constants import Send  # noqa: PLC0415, F401
+        from langgraph.constants import Send  # noqa: F401
 
     with pytest.warns(
         LangGraphDeprecatedSinceV10,
         match="Importing Interrupt from langgraph.constants is deprecated. Please use 'from langgraph.types import Interrupt' instead.",
     ):
-        from langgraph.constants import Interrupt  # noqa: PLC0415, F401
+        from langgraph.constants import Interrupt  # noqa: F401
 
 
 def test_pregel_types_deprecation() -> None:
@@ -102,7 +102,7 @@ def test_pregel_types_deprecation() -> None:
         LangGraphDeprecatedSinceV10,
         match="Importing from langgraph.pregel.types is deprecated. Please use 'from langgraph.types import ...' instead.",
     ):
-        from langgraph.pregel.types import StateSnapshot  # noqa: PLC0415, F401
+        from langgraph.pregel.types import StateSnapshot  # noqa: F401
 
 
 def test_config_schema_deprecation() -> None:
@@ -195,7 +195,7 @@ def test_deprecated_import() -> None:
         LangGraphDeprecatedSinceV10,
         match="Importing PREVIOUS from langgraph.constants is deprecated. This constant is now private and should not be used directly.",
     ):
-        from langgraph.constants import PREVIOUS  # noqa: PLC0415, F401
+        from langgraph.constants import PREVIOUS  # noqa: F401
 
 
 @pytest.mark.filterwarnings(

libs/langgraph/tests/test_graph_callbacks.py

@@ -13,7 +13,6 @@ from langgraph.callbacks import (
     GraphCallbackHandler,
     GraphInterruptEvent,
     GraphResumeEvent,
-    _GraphCallbackManager,
 )
 from langgraph.graph import START, StateGraph
 from langgraph.types import Command, Interrupt, interrupt
@@ -287,6 +286,7 @@ def test_non_graph_handler_via_add_handler_does_not_crash() -> None:
     GraphCallbackHandler. They must be silently accepted — graph lifecycle
     events will simply not be dispatched to them.
     """
+    from langgraph.callbacks import _GraphCallbackManager
 
     manager = _GraphCallbackManager()
     plain_handler = _LangChainCustomEventHandler()

libs/langgraph/tests/test_large_cases.py

@@ -2,26 +2,11 @@ import json
 import operator
 import re
 import time
-from copy import deepcopy
 from dataclasses import replace
 from typing import Annotated, Any, Literal, cast
 
 import pytest
-from langchain_core.callbacks import CallbackManagerForLLMRun
-from langchain_core.language_models.fake import FakeStreamingListLLM
-from langchain_core.language_models.fake_chat_models import (
-    FakeMessagesListChatModel,
-)
-from langchain_core.messages import (
-    AIMessage,
-    AnyMessage,
-    BaseMessage,
-    HumanMessage,
-    ToolCall,
-    ToolMessage,
-)
-from langchain_core.outputs import ChatGeneration, ChatResult
-from langchain_core.prompts import PromptTemplate
+from langchain_core.messages import AIMessage, AnyMessage, ToolCall
 from langchain_core.runnables import RunnableConfig, RunnableMap, RunnablePick
 from langchain_core.tools import tool
 from langchain_core.version import VERSION as LANGCHAIN_CORE_VERSION
@@ -499,6 +484,9 @@ def test_conditional_state_graph(
     snapshot: SnapshotAssertion,
     sync_checkpointer: BaseCheckpointSaver,
 ) -> None:
+    from langchain_core.language_models.fake import FakeStreamingListLLM
+    from langchain_core.prompts import PromptTemplate
+    from langchain_core.tools import tool
 
     class AgentState(TypedDict, total=False):
         input: Annotated[str, UntrackedValue]
@@ -1273,6 +1261,8 @@ def test_conditional_state_graph(
 
 
 def test_prebuilt_tool_chat(snapshot: SnapshotAssertion) -> None:
+    from langchain_core.messages import AIMessage, HumanMessage
+    from langchain_core.tools import tool
 
     @tool()
     def search_api(query: str) -> str:
@@ -1636,6 +1626,17 @@ def test_prebuilt_tool_chat(snapshot: SnapshotAssertion) -> None:
 def test_state_graph_packets(
     sync_checkpointer: BaseCheckpointSaver, mocker: MockerFixture
 ) -> None:
+    from langchain_core.language_models.fake_chat_models import (
+        FakeMessagesListChatModel,
+    )
+    from langchain_core.messages import (
+        AIMessage,
+        BaseMessage,
+        HumanMessage,
+        ToolCall,
+        ToolMessage,
+    )
+    from langchain_core.tools import tool
 
     class AgentState(TypedDict):
         messages: Annotated[list[BaseMessage], add_messages]
@@ -2380,6 +2381,15 @@ def test_message_graph(
     deterministic_uuids: MockerFixture,
     sync_checkpointer: BaseCheckpointSaver,
 ) -> None:
+    from copy import deepcopy
+
+    from langchain_core.callbacks import CallbackManagerForLLMRun
+    from langchain_core.language_models.fake_chat_models import (
+        FakeMessagesListChatModel,
+    )
+    from langchain_core.messages import AIMessage, BaseMessage, HumanMessage
+    from langchain_core.outputs import ChatGeneration, ChatResult
+    from langchain_core.tools import tool
 
     class FakeFunctionChatModel(FakeMessagesListChatModel):
         def bind_functions(self, functions: list):
@@ -3089,6 +3099,20 @@ def test_root_graph(
     deterministic_uuids: MockerFixture,
     sync_checkpointer: BaseCheckpointSaver,
 ) -> None:
+    from copy import deepcopy
+
+    from langchain_core.callbacks import CallbackManagerForLLMRun
+    from langchain_core.language_models.fake_chat_models import (
+        FakeMessagesListChatModel,
+    )
+    from langchain_core.messages import (
+        AIMessage,
+        BaseMessage,
+        HumanMessage,
+        ToolMessage,
+    )
+    from langchain_core.outputs import ChatGeneration, ChatResult
+    from langchain_core.tools import tool
 
     class FakeFunctionChatModel(FakeMessagesListChatModel):
         def bind_functions(self, functions: list):
@@ -5813,6 +5837,7 @@ def test_send_to_nested_graphs(sync_checkpointer: BaseCheckpointSaver) -> None:
 def test_send_react_interrupt(
     sync_checkpointer: BaseCheckpointSaver,
 ) -> None:
+    from langchain_core.messages import AIMessage, HumanMessage, ToolCall, ToolMessage
 
     ai_message = AIMessage(
         "",
@@ -6203,6 +6228,7 @@ def test_send_react_interrupt(
 def test_send_react_interrupt_control(
     sync_checkpointer: BaseCheckpointSaver, snapshot: SnapshotAssertion
 ) -> None:
+    from langchain_core.messages import AIMessage, HumanMessage, ToolCall, ToolMessage
 
     ai_message = AIMessage(
         "",
@@ -6429,6 +6455,9 @@ def test_send_react_interrupt_control(
 def test_weather_subgraph(
     sync_checkpointer: BaseCheckpointSaver, snapshot: SnapshotAssertion
 ) -> None:
+    from langchain_core.language_models.fake_chat_models import (
+        FakeMessagesListChatModel,
+    )
 
     # setup subgraph
 

libs/langgraph/tests/test_large_cases_async.py

@@ -9,22 +9,8 @@ from typing import (
 )
 
 import pytest
-from langchain_core.agents import AgentAction, AgentFinish
-from langchain_core.language_models.fake import FakeStreamingListLLM
-from langchain_core.language_models.fake_chat_models import (
-    FakeMessagesListChatModel,
-)
-from langchain_core.messages import (
-    AIMessage,
-    AnyMessage,
-    BaseMessage,
-    HumanMessage,
-    ToolCall,
-    ToolMessage,
-)
-from langchain_core.prompts import PromptTemplate
+from langchain_core.messages import AnyMessage, ToolCall
 from langchain_core.runnables import RunnableConfig, RunnablePick
-from langchain_core.tools import tool
 from langchain_core.version import VERSION as LANGCHAIN_CORE_VERSION
 from langgraph.checkpoint.base import BaseCheckpointSaver
 from langgraph.prebuilt.chat_agent_executor import create_react_agent
@@ -36,7 +22,6 @@ from langgraph._internal._constants import PULL, PUSH
 from langgraph.channels.last_value import LastValue
 from langgraph.channels.untracked_value import UntrackedValue
 from langgraph.constants import END, START
-from langgraph.graph import MessagesState
 from langgraph.graph.message import add_messages
 from langgraph.graph.state import StateGraph
 from langgraph.pregel import NodeBuilder, Pregel
@@ -494,6 +479,10 @@ async def test_fork_always_re_runs_nodes(
 
 
 async def test_conditional_graph_state(async_checkpointer: BaseCheckpointSaver) -> None:
+    from langchain_core.agents import AgentAction, AgentFinish
+    from langchain_core.language_models.fake import FakeStreamingListLLM
+    from langchain_core.prompts import PromptTemplate
+    from langchain_core.tools import tool
 
     class AgentState(TypedDict):
         input: Annotated[str, UntrackedValue]
@@ -1028,6 +1017,8 @@ async def test_conditional_graph_state(async_checkpointer: BaseCheckpointSaver)
 
 
 async def test_prebuilt_tool_chat() -> None:
+    from langchain_core.messages import AIMessage, HumanMessage
+    from langchain_core.tools import tool
 
     model = FakeChatModel(
         messages=[
@@ -1367,6 +1358,16 @@ async def test_prebuilt_tool_chat() -> None:
 
 
 async def test_state_graph_packets(async_checkpointer: BaseCheckpointSaver) -> None:
+    from langchain_core.language_models.fake_chat_models import (
+        FakeMessagesListChatModel,
+    )
+    from langchain_core.messages import (
+        AIMessage,
+        BaseMessage,
+        HumanMessage,
+        ToolMessage,
+    )
+    from langchain_core.tools import tool
 
     class AgentState(TypedDict):
         messages: Annotated[list[BaseMessage], add_messages]
@@ -2071,6 +2072,11 @@ async def test_state_graph_packets(async_checkpointer: BaseCheckpointSaver) -> N
 
 
 async def test_message_graph(async_checkpointer: BaseCheckpointSaver) -> None:
+    from langchain_core.language_models.fake_chat_models import (
+        FakeMessagesListChatModel,
+    )
+    from langchain_core.messages import AIMessage, HumanMessage
+    from langchain_core.tools import tool
 
     class FakeFunctionChatModel(FakeMessagesListChatModel):
         def bind_functions(self, functions: list):
@@ -3531,6 +3537,13 @@ async def test_send_to_nested_graphs(async_checkpointer: BaseCheckpointSaver) ->
 async def test_weather_subgraph(
     async_checkpointer: BaseCheckpointSaver,
 ) -> None:
+    from langchain_core.language_models.fake_chat_models import (
+        FakeMessagesListChatModel,
+    )
+    from langchain_core.messages import AIMessage, ToolCall
+    from langchain_core.tools import tool
+
+    from langgraph.graph import MessagesState
 
     # setup subgraph
 

libs/langgraph/tests/test_pregel.py

@@ -4,39 +4,25 @@ import gc
 import json
 import logging
 import operator
-import random
 import threading
 import time
 import uuid
-from collections import Counter, defaultdict, deque
+from collections import Counter, deque
 from collections.abc import Sequence
 from concurrent.futures import ThreadPoolExecutor
 from dataclasses import dataclass, field
 from random import randrange
 from typing import Annotated, Any, Literal, get_type_hints
-from unittest.mock import patch
 
 import pytest
 from langchain_core.language_models import GenericFakeChatModel
-from langchain_core.language_models.fake import FakeStreamingListLLM
-from langchain_core.language_models.fake_chat_models import (
-    FakeMessagesListChatModel,
-)
-from langchain_core.messages import (
-    AIMessage,
-    AnyMessage,
-    BaseMessage,
-    HumanMessage,
-    RemoveMessage,
-)
-from langchain_core.prompts import ChatPromptTemplate, PromptTemplate
+from langchain_core.messages import AIMessage, AnyMessage, HumanMessage, RemoveMessage
 from langchain_core.runnables import (
     RunnableConfig,
     RunnableLambda,
     RunnablePassthrough,
 )
 from langchain_core.runnables.graph import Edge
-from langchain_core.tools import tool
 from langchain_core.version import VERSION as LANGCHAIN_CORE_VERSION
 from langgraph.cache.base import BaseCache
 from langgraph.checkpoint.base import (
@@ -70,9 +56,8 @@ from langgraph.pregel import (
     NodeBuilder,
     Pregel,
 )
-from langgraph.pregel._loop import PregelLoop, SyncPregelLoop
+from langgraph.pregel._loop import SyncPregelLoop
 from langgraph.pregel._runner import PregelRunner
-from langgraph.runtime import RunControl
 from langgraph.types import (
     CachePolicy,
     Command,
@@ -140,6 +125,7 @@ def test_graph_validation() -> None:
 def test_request_drain_allows_inflight_call_scheduling(
     sync_checkpointer: BaseCheckpointSaver,
 ) -> None:
+    from langgraph.runtime import RunControl
 
     @task
     def child(x: int) -> int:
@@ -1783,6 +1769,9 @@ def test_conditional_state_graph_with_list_edge_inputs(snapshot: SnapshotAsserti
 
 
 def test_state_graph_w_config_inherited_state_keys(snapshot: SnapshotAssertion) -> None:
+    from langchain_core.language_models.fake import FakeStreamingListLLM
+    from langchain_core.prompts import PromptTemplate
+    from langchain_core.tools import tool
 
     class BaseState(TypedDict):
         input: str
@@ -2766,26 +2755,23 @@ def test_in_one_fan_out_state_graph_waiting_edge_plus_regular(
         "answer": "doc1,doc2,doc3,doc4",
     }
 
-    rewrite = {"rewrite_query": {"query": "query: what is weather in sf"}}
-    analyzer = {"analyzer_one": {"query": "analyzed: query: what is weather in sf"}}
-    empty_qa = {"qa": {"answer": ""}}
-    retriever_one_result = {"retriever_one": {"docs": ["doc1", "doc2"]}}
-    retriever_two_result = {"retriever_two": {"docs": ["doc3", "doc4"]}}
-
-    def assert_valid_stream_order(
-        chunks: list[dict[str, Any]], terminal: dict[str, Any]
-    ) -> None:
-        assert chunks[0] == rewrite
-        assert chunks[-1] == terminal
-        middle = chunks[1:-1]
-        assert sorted(middle, key=repr) == sorted(
-            [empty_qa, analyzer, retriever_one_result, retriever_two_result], key=repr
-        )
-        assert middle.index(analyzer) < middle.index(retriever_one_result)
-
-    assert_valid_stream_order(
-        [*app.stream({"query": "what is weather in sf"})],
-        {"qa": {"answer": "doc1,doc2,doc3,doc4"}},
+    assert [*app.stream({"query": "what is weather in sf"})] in (
+        [
+            {"rewrite_query": {"query": "query: what is weather in sf"}},
+            {"qa": {"answer": ""}},
+            {"analyzer_one": {"query": "analyzed: query: what is weather in sf"}},
+            {"retriever_two": {"docs": ["doc3", "doc4"]}},
+            {"retriever_one": {"docs": ["doc1", "doc2"]}},
+            {"qa": {"answer": "doc1,doc2,doc3,doc4"}},
+        ],
+        [
+            {"rewrite_query": {"query": "query: what is weather in sf"}},
+            {"analyzer_one": {"query": "analyzed: query: what is weather in sf"}},
+            {"qa": {"answer": ""}},
+            {"retriever_two": {"docs": ["doc3", "doc4"]}},
+            {"retriever_one": {"docs": ["doc1", "doc2"]}},
+            {"qa": {"answer": "doc1,doc2,doc3,doc4"}},
+        ],
     )
 
     app_w_interrupt = workflow.compile(
@@ -2794,9 +2780,25 @@ def test_in_one_fan_out_state_graph_waiting_edge_plus_regular(
     )
     config = {"configurable": {"thread_id": "1"}}
 
-    assert_valid_stream_order(
-        [c for c in app_w_interrupt.stream({"query": "what is weather in sf"}, config)],
-        {"__interrupt__": ()},
+    assert [
+        c for c in app_w_interrupt.stream({"query": "what is weather in sf"}, config)
+    ] in (
+        [
+            {"rewrite_query": {"query": "query: what is weather in sf"}},
+            {"qa": {"answer": ""}},
+            {"analyzer_one": {"query": "analyzed: query: what is weather in sf"}},
+            {"retriever_two": {"docs": ["doc3", "doc4"]}},
+            {"retriever_one": {"docs": ["doc1", "doc2"]}},
+            {"__interrupt__": ()},
+        ],
+        [
+            {"rewrite_query": {"query": "query: what is weather in sf"}},
+            {"analyzer_one": {"query": "analyzed: query: what is weather in sf"}},
+            {"qa": {"answer": ""}},
+            {"retriever_two": {"docs": ["doc3", "doc4"]}},
+            {"retriever_one": {"docs": ["doc1", "doc2"]}},
+            {"__interrupt__": ()},
+        ],
     )
 
     assert [c for c in app_w_interrupt.stream(None, config)] == [
@@ -3780,6 +3782,12 @@ def test_checkpoint_metadata(sync_checkpointer: BaseCheckpointSaver) -> None:
     previous checkpoint config for each step in the run.
     """
     # set up test
+    from langchain_core.language_models.fake_chat_models import (
+        FakeMessagesListChatModel,
+    )
+    from langchain_core.messages import AIMessage, AnyMessage
+    from langchain_core.prompts import ChatPromptTemplate
+    from langchain_core.tools import tool
 
     # graph state
     class BaseState(TypedDict):
@@ -3945,6 +3953,7 @@ def test_checkpoint_metadata(sync_checkpointer: BaseCheckpointSaver) -> None:
 def test_remove_message_via_state_update(
     sync_checkpointer: BaseCheckpointSaver,
 ) -> None:
+    from langchain_core.messages import AIMessage, HumanMessage, RemoveMessage
 
     workflow = StateGraph(state_schema=Annotated[list[AnyMessage], add_messages])  # type: ignore[arg-type]
     workflow.add_node(
@@ -3977,6 +3986,7 @@ def test_remove_message_via_state_update(
 
 
 def test_remove_message_from_node():
+    from langchain_core.messages import AIMessage, HumanMessage, RemoveMessage
 
     workflow = StateGraph(state_schema=Annotated[list[AnyMessage], add_messages])  # type: ignore[arg-type]
     workflow.add_node(
@@ -4002,6 +4012,7 @@ def test_remove_message_from_node():
 
 
 def test_xray_lance(snapshot: SnapshotAssertion):
+    from langchain_core.messages import AnyMessage, HumanMessage
 
     class Analyst(BaseModel):
         affiliation: str = Field(
@@ -4485,6 +4496,7 @@ def test_debug_subgraphs(
 def test_debug_nested_subgraphs(
     sync_checkpointer: BaseCheckpointSaver, durability: Durability
 ):
+    from collections import defaultdict
 
     class State(TypedDict):
         messages: Annotated[list[str], operator.add]
@@ -4744,6 +4756,8 @@ def test_runnable_passthrough_node_graph() -> None:
 def test_parent_command(
     sync_checkpointer: BaseCheckpointSaver, subgraph_persist: bool
 ) -> None:
+    from langchain_core.messages import BaseMessage
+    from langchain_core.tools import tool
 
     @tool(return_direct=True)
     def get_user_name() -> Command:
@@ -5163,6 +5177,7 @@ def test_command_with_static_breakpoints(
 
 
 def test_multistep_plan(sync_checkpointer: BaseCheckpointSaver):
+    from langchain_core.messages import AnyMessage
 
     class State(TypedDict, total=False):
         plan: list[str | list[str]]
@@ -5908,6 +5923,9 @@ def test_no_redundant_put_writes_for_cached_task(
     sync_checkpointer: BaseCheckpointSaver,
 ) -> None:
     """Cached @tasks on resume must not trigger redundant put_writes."""
+    from unittest.mock import patch
+
+    from langgraph.pregel._loop import PregelLoop
 
     @task
     def setup(x: int) -> int:
@@ -6273,15 +6291,14 @@ def test_sync_streaming_with_functional_api() -> None:
     rather than have all the results arrive at once after the graph has completed.
 
     The time of arrival between the two updates corresponding to the two `slow` tasks
-    should be roughly the task delay. If results are buffered until graph completion,
-    the two updates arrive back-to-back instead.
+    should be greater than the time delay between the two tasks.
     """
 
     time_delay = 0.05
 
     @task()
     def slow() -> dict:
-        time.sleep(time_delay)
+        time.sleep(time_delay)  # Simulate a delay of 10 ms
         return {"tic": time.monotonic()}
 
     @entrypoint()
@@ -6299,9 +6316,8 @@ def test_sync_streaming_with_functional_api() -> None:
 
     assert len(arrival_times) == 2
     delta = arrival_times[1] - arrival_times[0]
-    # Allow a small amount of scheduler jitter while still verifying the chunks
-    # arrived separately rather than back-to-back after graph completion.
-    assert delta > time_delay * 0.8
+    # Delta cannot be less than 10 ms if it is streaming as results are generated.
+    assert delta > time_delay
 
 
 def test_entrypoint_without_checkpointer() -> None:
@@ -6970,6 +6986,7 @@ def test_configurable_propagates_to_stream_metadata() -> None:
 
 
 def test_stream_mode_messages_command() -> None:
+    from langchain_core.messages import HumanMessage
 
     def my_node(state):
         return {"messages": HumanMessage(content="foo")}
@@ -7237,6 +7254,7 @@ def test_get_stream_writer() -> None:
 
 
 def test_stream_messages_dedupe_inputs() -> None:
+    from langchain_core.messages import AIMessage
 
     def call_model(state):
         return {"messages": AIMessage("hi", id="1")}
@@ -7274,6 +7292,7 @@ def test_stream_messages_dedupe_inputs() -> None:
 
 
 def test_stream_messages_dedupe_state(sync_checkpointer: BaseCheckpointSaver) -> None:
+    from langchain_core.messages import AIMessage
 
     to_emit = [AIMessage("bye", id="1"), AIMessage("bye again", id="2")]
 
@@ -8245,6 +8264,7 @@ def test_get_graph_loop(snapshot: SnapshotAssertion) -> None:
 
 
 def test_get_graph_self_loop(snapshot: SnapshotAssertion) -> None:
+    import random
 
     subgraph_builder = StateGraph(MessagesState)
     subgraph_builder.add_node("agent", lambda x: x)

libs/langgraph/tests/test_pregel_async.py

@@ -7,7 +7,7 @@ import operator
 import random
 import sys
 import uuid
-from collections import Counter, defaultdict, deque
+from collections import Counter, deque
 from dataclasses import replace
 from time import perf_counter
 from typing import (
@@ -21,20 +21,8 @@ from uuid import UUID
 
 import pytest
 from langchain_core.language_models import GenericFakeChatModel
-from langchain_core.language_models.fake_chat_models import (
-    FakeMessagesListChatModel,
-)
-from langchain_core.messages import (
-    AIMessage,
-    AnyMessage,
-    BaseMessage,
-    HumanMessage,
-    ToolCall,
-    ToolMessage,
-)
-from langchain_core.prompts import ChatPromptTemplate
+from langchain_core.messages import HumanMessage
 from langchain_core.runnables import RunnableConfig, RunnableLambda, RunnablePassthrough
-from langchain_core.tools import tool
 from langchain_core.utils.aiter import aclosing
 from langchain_core.version import VERSION as LANGCHAIN_CORE_VERSION
 from langgraph.cache.base import BaseCache
@@ -57,7 +45,6 @@ from typing_extensions import NotRequired, TypedDict
 from langgraph._internal._constants import CONFIG_KEY_NODE_FINISHED, ERROR, PULL
 from langgraph._internal._queue import AsyncQueue
 from langgraph.channels.binop import BinaryOperatorAggregate
-from langgraph.channels.delta import DeltaChannel
 from langgraph.channels.last_value import LastValue
 from langgraph.channels.topic import Topic
 from langgraph.errors import (
@@ -68,11 +55,10 @@ from langgraph.errors import (
 )
 from langgraph.func import entrypoint, task
 from langgraph.graph import END, START, StateGraph
-from langgraph.graph.message import MessagesState, _messages_delta_reducer, add_messages
+from langgraph.graph.message import MessagesState, add_messages
 from langgraph.pregel import NodeBuilder, Pregel
-from langgraph.pregel._loop import AsyncPregelLoop, PregelLoop
+from langgraph.pregel._loop import AsyncPregelLoop
 from langgraph.pregel._runner import PregelRunner
-from langgraph.runtime import RunControl
 from langgraph.types import (
     CachePolicy,
     Command,
@@ -236,6 +222,7 @@ async def test_checkpoint_errors() -> None:
 async def test_request_drain_allows_inflight_acall_scheduling(
     async_checkpointer: BaseCheckpointSaver,
 ) -> None:
+    from langgraph.runtime import RunControl
 
     @task
     async def child(x: int) -> int:
@@ -2881,6 +2868,7 @@ async def test_send_dedupe_on_resume(
 
 
 async def test_send_react_interrupt(async_checkpointer: BaseCheckpointSaver) -> None:
+    from langchain_core.messages import AIMessage, HumanMessage, ToolCall, ToolMessage
 
     ai_message = AIMessage(
         "",
@@ -3271,6 +3259,7 @@ async def test_send_react_interrupt(async_checkpointer: BaseCheckpointSaver) ->
 async def test_send_react_interrupt_control(
     async_checkpointer: BaseCheckpointSaver, snapshot: SnapshotAssertion
 ) -> None:
+    from langchain_core.messages import AIMessage, HumanMessage, ToolCall, ToolMessage
 
     ai_message = AIMessage(
         "",
@@ -5549,6 +5538,12 @@ async def test_checkpoint_metadata(async_checkpointer: BaseCheckpointSaver) -> N
     previous checkpoint config for each step in the run.
     """
     # set up test
+    from langchain_core.language_models.fake_chat_models import (
+        FakeMessagesListChatModel,
+    )
+    from langchain_core.messages import AIMessage, AnyMessage
+    from langchain_core.prompts import ChatPromptTemplate
+    from langchain_core.tools import tool
 
     # graph state
     class BaseState(TypedDict):
@@ -5949,6 +5944,7 @@ async def test_debug_subgraphs(
 async def test_debug_nested_subgraphs(
     async_checkpointer: BaseCheckpointSaver, durability: Durability
 ) -> None:
+    from collections import defaultdict
 
     class State(TypedDict):
         messages: Annotated[list[str], operator.add]
@@ -6065,6 +6061,8 @@ async def test_debug_nested_subgraphs(
 async def test_parent_command(
     async_checkpointer: BaseCheckpointSaver, subgraph_persist: bool
 ) -> None:
+    from langchain_core.messages import BaseMessage
+    from langchain_core.tools import tool
 
     @tool(return_direct=True)
     def get_user_name() -> Command:
@@ -6132,6 +6130,10 @@ async def test_parent_command(
 
 async def test_delta_channel_durability_exit_stores_snapshot_async() -> None:
     """DeltaChannel must reload from an async durability='exit' checkpoint."""
+    from langchain_core.messages import AIMessage
+
+    from langgraph.channels.delta import DeltaChannel
+    from langgraph.graph.message import _messages_delta_reducer
 
     class State(TypedDict):
         messages: Annotated[list, DeltaChannel(_messages_delta_reducer)]
@@ -6418,6 +6420,7 @@ async def test_command_with_static_breakpoints(
 
 
 async def test_multistep_plan(async_checkpointer: BaseCheckpointSaver) -> None:
+    from langchain_core.messages import AnyMessage
 
     class State(TypedDict, total=False):
         plan: list[str | list[str]]
@@ -6755,6 +6758,7 @@ async def test_multiple_interrupts_functional(
     async_checkpointer: BaseCheckpointSaver,
 ) -> None:
     """Test multiple interrupts with functional API."""
+    from langgraph.func import entrypoint, task
 
     counter = 0
 
@@ -7670,6 +7674,7 @@ async def test_configurable_propagates_to_stream_metadata() -> None:
 
 
 async def test_stream_mode_messages_command() -> None:
+    from langchain_core.messages import HumanMessage
 
     async def my_node(state):
         return {"messages": HumanMessage(content="foo")}
@@ -7718,6 +7723,7 @@ async def test_stream_mode_messages_command() -> None:
 
 
 async def test_stream_messages_dedupe_inputs() -> None:
+    from langchain_core.messages import AIMessage
 
     async def call_model(state):
         return {"messages": AIMessage("hi", id="1")}
@@ -7757,6 +7763,7 @@ async def test_stream_messages_dedupe_inputs() -> None:
 async def test_stream_messages_dedupe_state(
     async_checkpointer: BaseCheckpointSaver,
 ) -> None:
+    from langchain_core.messages import AIMessage
 
     to_emit = [AIMessage("bye", id="1"), AIMessage("bye again", id="2")]
 
@@ -8135,6 +8142,9 @@ async def test_no_redundant_put_writes_for_cached_task(
     async_checkpointer: BaseCheckpointSaver,
 ) -> None:
     """Cached @tasks on resume must not trigger redundant put_writes."""
+    from unittest.mock import patch
+
+    from langgraph.pregel._loop import PregelLoop
 
     @task
     async def setup(x: int) -> int:
@@ -8636,6 +8646,7 @@ async def test_batch_update_as_input(
 
 
 async def test_draw_invalid():
+    from langchain_core.messages import BaseMessage
 
     class AgentState(TypedDict):
         messages: Annotated[list[BaseMessage], add_messages]

libs/langgraph/tests/test_pydantic.py

@@ -4,13 +4,10 @@ import ipaddress
 import pathlib
 import re
 import sys
-import typing
 import uuid
 from enum import Enum
 from typing import Annotated, Literal, Optional
 
-import pydantic
-import typing_extensions
 from langgraph.checkpoint.base import BaseCheckpointSaver
 from pydantic import (
     BaseModel,
@@ -35,6 +32,10 @@ from tests.any_str import AnyStr
 
 def test_is_supported_by_pydantic() -> None:
     """Test if types are supported by pydantic."""
+    import typing
+
+    import pydantic
+    import typing_extensions
 
     class TypedDictExtensions(typing_extensions.TypedDict):
         x: int

libs/langgraph/tests/test_remote_graph.py

@@ -10,14 +10,12 @@ from langchain_core.messages import AnyMessage, BaseMessage
 from langchain_core.runnables import RunnableConfig
 from langchain_core.runnables.graph import Edge as DrawableEdge
 from langchain_core.runnables.graph import Node as DrawableNode
-from langgraph.checkpoint.memory import InMemorySaver
-from langgraph_sdk.client import get_client, get_sync_client
 from langgraph_sdk.schema import StreamPart
 from pydantic import BaseModel
 from typing_extensions import TypedDict
 
 from langgraph.errors import GraphInterrupt
-from langgraph.graph import END, START, MessagesState, StateGraph, add_messages
+from langgraph.graph import StateGraph, add_messages
 from langgraph.pregel import Pregel
 from langgraph.pregel.remote import RemoteGraph
 from langgraph.types import Interrupt, StateSnapshot
@@ -1099,6 +1097,10 @@ def test_stream_context_base_model():
 )
 @pytest.mark.anyio
 async def test_langgraph_cloud_integration():
+    from langgraph.checkpoint.memory import InMemorySaver
+    from langgraph_sdk.client import get_client, get_sync_client
+
+    from langgraph.graph import END, START, MessagesState, StateGraph
 
     # create RemotePregel instance
     client = get_client(url="http://localhost:8123")

libs/langgraph/tests/test_remote_graph_v3.py

@@ -4,7 +4,6 @@ from unittest.mock import AsyncMock, MagicMock
 
 import pytest
 
-from langgraph.pregel import remote as remote_mod
 from langgraph.pregel._remote_run_stream import (
     _AsyncRemoteGraphRunStream,
     _ChannelProjection,
@@ -578,6 +577,7 @@ def test_stream_events_v3_strips_checkpoint_keys_from_configurable():
 def test_stream_events_v3_merges_tracing_headers_when_distributed_tracing(
     monkeypatch,
 ):
+    from langgraph.pregel import remote as remote_mod
 
     sync_client = MagicMock()
     sync_client.threads.stream.return_value = MagicMock()

libs/langgraph/tests/test_retry.py

@@ -11,9 +11,7 @@ from typing import Annotated, Any
 from unittest.mock import Mock, patch
 from uuid import uuid4
 
-import httpx
 import pytest
-import requests
 from langchain_core.callbacks import AsyncCallbackManagerForLLMRun, BaseCallbackHandler
 from langchain_core.language_models.fake_chat_models import GenericFakeChatModel
 from langchain_core.messages import AIMessage, AIMessageChunk, BaseMessage, HumanMessage
@@ -65,7 +63,6 @@ from langgraph.types import (
     RetryPolicy,
     Send,
     TimeoutPolicy,
-    interrupt,
 )
 
 NEEDS_CONTEXTVARS = pytest.mark.skipif(
@@ -174,6 +171,8 @@ def test_checkpoint_ns_for_parent_command() -> None:
 
 def test_should_retry_default_retry_on():
     """Test the default retry_on function."""
+    import httpx
+    import requests
 
     # Create a RetryPolicy with default_retry_on
     policy = RetryPolicy()
@@ -2199,6 +2198,7 @@ def test_graph_error_handler_does_not_swallow_interrupt_concurrent():
     """When a graph error handler is configured and a node calls interrupt()
     concurrently with other nodes, the interrupt must still be raised — not
     silently swallowed."""
+    from langgraph.types import interrupt
 
     class State(TypedDict):
         foo: str
@@ -2587,6 +2587,8 @@ async def test_set_node_defaults_timeout():
         .compile()
     )
 
+    from langgraph.errors import NodeTimeoutError
+
     with pytest.raises(NodeTimeoutError):
         await graph.ainvoke({"foo": ""})
 

libs/langgraph/tests/test_runtime.py

@@ -6,11 +6,9 @@ from typing import Any
 
 import pytest
 from langgraph.checkpoint.memory import MemorySaver
-from langgraph.store.memory import InMemoryStore
 from pydantic import BaseModel, ValidationError
 from typing_extensions import TypedDict
 
-from langgraph._internal._constants import CONFIG_KEY_RUNTIME
 from langgraph.errors import GraphDrained
 from langgraph.graph import END, START, StateGraph
 from langgraph.runtime import (
@@ -1179,6 +1177,9 @@ def test_foreign_object_in_runtime_slot_is_coerced() -> None:
     `merge` when no per-run `context` is provided. `store` is resolved
     separately, so it is not read off the foreign object in the coercion.
     """
+    from langgraph.store.memory import InMemoryStore
+
+    from langgraph._internal._constants import CONFIG_KEY_RUNTIME
 
     store = InMemoryStore()
     graph_level_context = {"source": "graph-level"}

libs/langgraph/tests/test_serde_allowlist.py

@@ -79,7 +79,7 @@ class DummyChannel:
 
 def test_curated_core_allowlist_includes_messages() -> None:
     try:
-        from langchain_core.messages import BaseMessage  # noqa: PLC0415
+        from langchain_core.messages import BaseMessage
     except Exception:
         pytest.skip("langchain_core not available")
     allowlist = curated_core_allowlist()

libs/langgraph/tests/test_stream_data_transformers.py

@@ -13,10 +13,8 @@ import operator
 import time
 from typing import Annotated, Any
 
-from langgraph.checkpoint.memory import InMemorySaver
 from typing_extensions import TypedDict
 
-from langgraph.config import get_stream_writer
 from langgraph.constants import END, START
 from langgraph.graph import StateGraph
 from langgraph.stream._mux import StreamMux
@@ -490,6 +488,7 @@ class _State(TypedDict):
 
 
 def _my_node(state: _State) -> dict[str, Any]:
+    from langgraph.config import get_stream_writer
 
     writer = get_stream_writer()
     writer({"status": "working", "node": "my_node"})
@@ -607,6 +606,7 @@ def test_stream_events_v3_all_transformers_interleaved() -> None:
 
 def test_stream_events_v3_all_transformers_with_checkpointer() -> None:
     """All transformers with a checkpointer — run.checkpoints populated."""
+    from langgraph.checkpoint.memory import InMemorySaver
 
     builder = StateGraph(_State, input_schema=_State)
     builder.add_node("my_node", _my_node)
@@ -645,6 +645,7 @@ def test_stream_events_v3_all_transformers_with_checkpointer() -> None:
 
 def test_stream_events_v3_checkpoints_projection_opt_in() -> None:
     """run.checkpoints surfaces checkpoint data when opted in with a checkpointer."""
+    from langgraph.checkpoint.memory import InMemorySaver
 
     builder = StateGraph(_State, input_schema=_State)
     builder.add_node("my_node", _my_node)

libs/langgraph/tests/test_stream_events_v3.py

@@ -12,10 +12,6 @@ from dataclasses import dataclass
 from typing import Annotated, Any, TypeVar
 
 import pytest
-from langchain_core.language_models.chat_model_stream import (
-    AsyncChatModelStream,
-    ChatModelStream,
-)
 from langchain_core.messages import AIMessage, BaseMessage
 from langgraph.checkpoint.memory import InMemorySaver
 from pydantic import BaseModel, ValidationError
@@ -28,14 +24,6 @@ from langgraph.func import entrypoint
 from langgraph.graph import StateGraph
 from langgraph.graph.message import MessagesState
 from langgraph.runtime import RunControl
-from langgraph.stream import (
-    AsyncGraphRunStream,
-    AsyncSubgraphRunStream,
-    GraphRunStream,
-    LifecyclePayload,
-    StreamChannel,
-    SubgraphRunStream,
-)
 from langgraph.types import (
     CheckpointPayload,
     CheckpointStreamPart,
@@ -1162,7 +1150,7 @@ class TestV2ValidationErrors:
 
 
 # --- type narrowing compile-time checks ---
-# These assert_type calls verify that mypy narrows the union correctly.
+# These assert_type calls verify that the type checker narrows the union correctly.
 
 
 _OutputT = TypeVar("_OutputT")
@@ -1190,32 +1178,3 @@ def _check_type_narrowing(part: StreamPart[_StateT, _OutputT]) -> None:
         assert_type(part, DebugStreamPart[_StateT])
         assert_type(part["data"], DebugPayload[_StateT])
     assert_type(part["ns"], tuple[str, ...])
-
-
-# --- v3 stream_events return / projection typing checks ---
-# These functions are never called at runtime; `ty` validates the
-# assert_type calls. They pin the public typing surface of
-# stream_events(version="v3") / astream_events(version="v3"): the handle
-# type and the always-registered native projections.
-
-
-def _check_stream_events_v3_typing() -> None:
-    """Compile-time checks for sync v3 typing — never called at runtime."""
-    graph = _make_simple_graph().compile()
-    run = graph.stream_events(_SIMPLE_INPUT, version="v3")
-    assert_type(run, GraphRunStream)
-    assert_type(run.values, StreamChannel[dict[str, Any]])
-    assert_type(run.messages, StreamChannel[ChatModelStream])
-    assert_type(run.lifecycle, StreamChannel[LifecyclePayload])
-    assert_type(run.subgraphs, StreamChannel[SubgraphRunStream])
-
-
-async def _check_astream_events_v3_typing() -> None:
-    """Compile-time checks for async v3 typing — never called at runtime."""
-    graph = _make_simple_graph().compile()
-    run = await graph.astream_events(_SIMPLE_INPUT, version="v3")
-    assert_type(run, AsyncGraphRunStream)
-    assert_type(run.values, StreamChannel[dict[str, Any]])
-    assert_type(run.messages, StreamChannel[AsyncChatModelStream])
-    assert_type(run.lifecycle, StreamChannel[LifecyclePayload])
-    assert_type(run.subgraphs, StreamChannel[AsyncSubgraphRunStream])

libs/langgraph/tests/test_stream_messages_transformer.py

@@ -3,10 +3,8 @@ legacy v1 chunk filtering, and end-to-end via stream_events(version="v3") / astr
 
 from __future__ import annotations
 
-import asyncio
 import time
 from typing import Any
-from uuid import uuid4
 
 import pytest
 from langchain_core.language_models import GenericFakeChatModel
@@ -15,13 +13,11 @@ from langchain_core.language_models.chat_model_stream import (
     ChatModelStream,
 )
 from langchain_core.messages import AIMessage, AIMessageChunk, ToolMessage
-from langchain_core.outputs import ChatGeneration, ChatGenerationChunk, LLMResult
 from langchain_core.runnables import RunnableConfig
 from typing_extensions import TypedDict
 
 from langgraph.constants import END, START
 from langgraph.graph import MessagesState, StateGraph
-from langgraph.pregel._messages import StreamMessagesHandlerV2
 from langgraph.stream._mux import StreamMux
 from langgraph.stream.run_stream import GraphRunStream
 from langgraph.stream.stream_channel import StreamChannel
@@ -611,6 +607,7 @@ class TestEndToEnd:
     @pytest.mark.anyio
     async def test_nested_async_iteration_yields_text_deltas(self) -> None:
         """Inner stream.text drives the shared graph pump via the async pump binding."""
+        import asyncio
 
         model = GenericFakeChatModel(messages=iter(["hello world"]))
 
@@ -873,6 +870,11 @@ class TestDirectMessagesModeStaysV1:
 class TestStreamMessagesHandlerV2Unit:
     def test_on_llm_new_token_is_noop(self) -> None:
         """v2 handler must not emit v1 chunks even when on_llm_new_token fires."""
+        from uuid import uuid4
+
+        from langchain_core.outputs import ChatGenerationChunk
+
+        from langgraph.pregel._messages import StreamMessagesHandlerV2
 
         emitted: list[Any] = []
         handler = StreamMessagesHandlerV2(emitted.append, subgraphs=False)
@@ -888,6 +890,9 @@ class TestStreamMessagesHandlerV2Unit:
         assert emitted == []
 
     def test_on_chain_end_does_not_emit_tool_messages(self) -> None:
+        from uuid import uuid4
+
+        from langgraph.pregel._messages import StreamMessagesHandlerV2
 
         emitted: list[Any] = []
         handler = StreamMessagesHandlerV2(emitted.append, subgraphs=False)
@@ -904,6 +909,11 @@ class TestStreamMessagesHandlerV2Unit:
     def test_on_llm_end_dedupes_when_final_message_id_differs(self) -> None:
         """A streamed v2 message should not be emitted again from the final
         AIMessage fallback when its final id does not match `message-start`."""
+        from uuid import uuid4
+
+        from langchain_core.outputs import ChatGeneration, LLMResult
+
+        from langgraph.pregel._messages import StreamMessagesHandlerV2
 
         emitted: list[Any] = []
         handler = StreamMessagesHandlerV2(emitted.append, subgraphs=False)

libs/langgraph/tests/test_utils.py

@@ -2,7 +2,6 @@ import functools
 import sys
 import uuid
 from collections.abc import Callable
-from dataclasses import dataclass
 from typing import (
     Annotated,
     Any,
@@ -18,10 +17,7 @@ import langsmith
 import pytest
 from langchain_core.callbacks import BaseCallbackHandler, CallbackManager
 from langchain_core.runnables import RunnableConfig
-from langchain_core.runnables.config import var_child_runnable_config
 from langchain_core.tracers import LangChainTracer
-from langsmith import get_current_run_tree  # type: ignore
-from pydantic import BaseModel, Field
 from typing_extensions import NotRequired, Required, TypedDict
 
 from langgraph._internal._config import (
@@ -122,6 +118,7 @@ def rt_graph() -> CompiledStateGraph:
         node_run_id: int
 
     def node(_: State):
+        from langsmith import get_current_run_tree  # type: ignore
 
         return {"node_run_id": get_current_run_tree().id}  # type: ignore
 
@@ -246,6 +243,10 @@ def test_is_required():
 
 
 def test_enhanced_type_hints() -> None:
+    from dataclasses import dataclass
+    from typing import Annotated
+
+    from pydantic import BaseModel, Field
 
     class MyTypedDict(TypedDict):
         val_1: str
@@ -509,6 +510,7 @@ def test_ensure_config_explicit_configurable_replaces_ambient() -> None:
     # An explicit checkpoint coordinate (here a new thread_id) starts a fresh
     # lineage and drops the ambient run context (e.g. a parent task's
     # checkpoint_ns), so a child graph does not inherit it.
+    from langchain_core.runnables.config import var_child_runnable_config
 
     token = var_child_runnable_config.set(
         {"configurable": {"checkpoint_ns": "p:parent-task", "checkpoint_id": "cid"}}
@@ -525,6 +527,7 @@ def test_ensure_config_explicit_configurable_replaces_ambient() -> None:
 def test_ensure_config_ambient_inherited_when_no_explicit_configurable() -> None:
     # With no explicit configurable, the ambient run context is inherited
     # unchanged (stateless subgraph / interrupt-resume pattern).
+    from langchain_core.runnables.config import var_child_runnable_config
 
     token = var_child_runnable_config.set(
         {"configurable": {"checkpoint_ns": "p:parent-task"}}
@@ -540,6 +543,7 @@ def test_ensure_config_explicit_configurables_still_merge_over_ambient() -> None
     # A new thread_id drops the ambient, but explicit configs still shallow-merge
     # among themselves, so a with_config(...) value (ls_agent_type) survives
     # alongside an invoke-time thread_id.
+    from langchain_core.runnables.config import var_child_runnable_config
 
     token = var_child_runnable_config.set(
         {"configurable": {"checkpoint_ns": "p:parent-task"}}
@@ -560,6 +564,7 @@ def test_ensure_config_non_coordinate_config_keeps_ambient_checkpoint_ns() -> No
     # A nested subagent is invoked with a non-coordinate configurable key
     # (ls_agent_type) and no thread_id; it must keep the inherited checkpoint_ns
     # so it stays a discoverable child of the parent run (deepagents `task` tool).
+    from langchain_core.runnables.config import var_child_runnable_config
 
     token = var_child_runnable_config.set(
         {"configurable": {"thread_id": "parent", "checkpoint_ns": "p:parent-task"}}
@@ -577,6 +582,7 @@ def test_ensure_config_same_thread_id_still_clears_ambient() -> None:
     # A child that reuses the parent's thread_id is still addressing its own root
     # namespace on that thread, so the parent task's checkpoint_ns must not leak
     # in; otherwise the child writes state that get_state cannot read back.
+    from langchain_core.runnables.config import var_child_runnable_config
 
     token = var_child_runnable_config.set(
         {"configurable": {"thread_id": "shared", "checkpoint_ns": "p:parent-task"}}