build(cli): use API inmem extra

.github/workflows/ci.yml

@@ -31,7 +31,7 @@ jobs:
       sdk_py: ${{ steps.filter.outputs.sdk_py || 'true' }}
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: dorny/paths-filter@ceb8a2b8f2d89434be7ff52d3de7ec3738c5cc9d # v4
+      - uses: dorny/paths-filter@7b450fff21473bca461d4b92ce414b9d0420d706 # v4
         if: github.event_name != 'workflow_dispatch'
         id: filter
         with:

.gitignore

@@ -76,7 +76,6 @@ __pypackages__/
 
 # Environments
 .env
-.env.*
 .envrc
 *.crt
 *.key

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

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

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

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

libs/checkpoint/README.md

@@ -39,12 +39,7 @@ You must pass these when invoking the graph as part of the configurable part of
 
 ```python
 {"configurable": {"thread_id": "1"}}  # valid config
-{
-    "configurable": {
-        "thread_id": "1",
-        "checkpoint_id": "0c62ca34-ac19-445d-bbb0-5b4984975b2a",
-    }
-}  # also valid config
+{"configurable": {"thread_id": "1", "checkpoint_id": "0c62ca34-ac19-445d-bbb0-5b4984975b2a"}}  # also valid config
 ```
 
 ### Serde
@@ -84,12 +79,24 @@ checkpoint = {
     "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},
+      "__input__": {},
+      "__start__": {
+        "__start__": 1
+      },
+      "node": {
+        "start:node": 2
+      }
     },
 }
 

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

@@ -10,7 +10,6 @@ from typing import (
     NamedTuple,
     TypedDict,
     TypeVar,
-    cast,
 )
 
 from langchain_core.runnables import RunnableConfig
@@ -782,7 +781,7 @@ def get_serializable_checkpoint_metadata(
     """Get checkpoint metadata in a backwards-compatible manner."""
     checkpoint_metadata = get_checkpoint_metadata(config, metadata)
     if "writes" in checkpoint_metadata:
-        cast(dict[str, Any], checkpoint_metadata).pop("writes")
+        checkpoint_metadata.pop("writes")
     return checkpoint_metadata
 
 

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

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

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

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

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

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

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

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

libs/checkpoint/tests/test_store.py

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

libs/cli/js-examples/package.json

@@ -21,8 +21,8 @@
     "test:all": "yarn test && yarn test:int && yarn lint:langgraph"
   },
   "dependencies": {
-    "@langchain/core": "^1.2.9",
-    "@langchain/langgraph": "^1.4.13"
+    "@langchain/core": "^1.2.4",
+    "@langchain/langgraph": "^1.4.8"
   },
   "resolutions": {
     "@langchain/langgraph-checkpoint": "1.0.4"
@@ -32,15 +32,15 @@
     "@eslint/js": "^10.0.1",
     "@tsconfig/recommended": "^1.0.13",
     "@types/jest": "^30.0.0",
-    "@typescript-eslint/eslint-plugin": "^8.68.0",
-    "@typescript-eslint/parser": "^8.68.0",
+    "@typescript-eslint/eslint-plugin": "^8.65.0",
+    "@typescript-eslint/parser": "^8.65.0",
     "dotenv": "^17.4.2",
-    "eslint": "^10.9.1",
+    "eslint": "^10.8.0",
     "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": "^30.5.0",
+    "jest": "^30.4.2",
     "prettier": "^3.9.6",
     "ts-jest": "^29.4.12",
     "typescript": "^7.0.2"

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

@@ -9,8 +9,8 @@
   },
   "dependencies": {
     "@js-monorepo-example/shared": "*",
-    "@langchain/core": "^1.2.9",
-    "@langchain/langgraph": "^1.4.13"
+    "@langchain/core": "^1.2.4",
+    "@langchain/langgraph": "^1.4.8"
   },
   "devDependencies": {
     "typescript": "^7.0.2"

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

@@ -17,18 +17,18 @@
     "lint": "eslint 'apps/**/*.ts' 'libs/**/*.ts'"
   },
   "devDependencies": {
-    "turbo": "^2.10.12",
+    "turbo": "^2.10.8",
     "typescript": "^7.0.2",
     "@tsconfig/recommended": "^1.0.13",
     "@eslint/eslintrc": "^3.3.6",
     "@eslint/js": "^10.0.1",
-    "eslint": "^10.9.1",
+    "eslint": "^10.8.0",
     "eslint-config-prettier": "^10.1.8",
     "eslint-plugin-import": "^2.27.5",
     "eslint-plugin-no-instanceof": "^1.0.1",
     "eslint-plugin-prettier": "^5.5.6",
-    "@typescript-eslint/eslint-plugin": "^8.68.0",
-    "@typescript-eslint/parser": "^8.68.0",
+    "@typescript-eslint/eslint-plugin": "^8.65.0",
+    "@typescript-eslint/parser": "^8.65.0",
     "prettier": "^3.9.6"
   }
 }

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

@@ -103,10 +103,10 @@
   resolved "https://registry.yarnpkg.com/@isaacs/cliui/-/cliui-9.0.0.tgz#4d0a3f127058043bf2e7ee169eaf30ed901302f3"
   integrity sha512-AokJm4tuBHillT+FpMtxQ60n8ObyXBatq7jD2/JA9dxbDDokKQm8KMht5ibGzLVU9IJDIKK4TPKgMHEYMn3lMg==
 
-"@langchain/core@^1.2.9":
-  version "1.2.9"
-  resolved "https://registry.yarnpkg.com/@langchain/core/-/core-1.2.9.tgz#4f5fb27ba07c51ce4fb8e1dc32eb36945737afa1"
-  integrity sha512-conzSEj9Zu1AyXJLXsSbgrtxtxinmI1yGqQ5CIJZSoV5rvv+yvQE/vgBnoySpBQ/bl3YPgj2FL/gbDjWykLSfg==
+"@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==
   dependencies:
     "@cfworker/json-schema" "^4.0.2"
     "@standard-schema/spec" "^1.1.0"
@@ -116,28 +116,28 @@
     p-queue "^6.6.2"
     zod "^3.25.76 || ^4"
 
-"@langchain/langgraph-checkpoint@^1.1.5":
-  version "1.1.5"
-  resolved "https://registry.yarnpkg.com/@langchain/langgraph-checkpoint/-/langgraph-checkpoint-1.1.5.tgz#c793177f9afcce31a1e9922f317f88fec1254282"
-  integrity sha512-BwDwl5VeTOh6CVuiIPgsUgfK51vTJDMSbFcSCUfjJWsl8/DPdK/mbv+ejxJstkSk/BlSPMP4JfXWcN6jD2ea2Q==
+"@langchain/langgraph-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@~1.10.0":
-  version "1.10.0"
-  resolved "https://registry.yarnpkg.com/@langchain/langgraph-sdk/-/langgraph-sdk-1.10.0.tgz#6ec1364a97caf615983161ae1f00b196897b9cd6"
-  integrity sha512-cPPkh+hMNgeOaGtJRrqs1AjZde45cG2+Ma9Sc10wz2RyvT8SKToCKS+VvkS18SsLajnmq6/FKVmthq6rnUVYOw==
+"@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==
   dependencies:
-    "@langchain/protocol" "^0.0.19"
+    "@langchain/protocol" "^0.0.18"
     "@types/json-schema" "^7.0.15"
     p-queue "^9.0.1"
     p-retry "^7.1.1"
 
-"@langchain/langgraph@^1.4.13":
-  version "1.4.13"
-  resolved "https://registry.yarnpkg.com/@langchain/langgraph/-/langgraph-1.4.13.tgz#168ab4f05c212fd5ab4b2816bcad2e963b345101"
-  integrity sha512-LO1ak6jNQ9jR13tm7Ay4Yh2/otrH7LNVUwWTAI7WJigVdW5Fb6LuYSZUzVn4S7sVSiyVFfnrUcDTd8c7eAzPrQ==
+"@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==
   dependencies:
-    "@langchain/langgraph-checkpoint" "^1.1.5"
-    "@langchain/langgraph-sdk" "~1.10.0"
+    "@langchain/langgraph-checkpoint" "^1.1.3"
+    "@langchain/langgraph-sdk" "~1.9.26"
     "@langchain/protocol" "^0.0.18"
     "@standard-schema/spec" "1.1.0"
 
@@ -146,11 +146,6 @@
   resolved "https://registry.yarnpkg.com/@langchain/protocol/-/protocol-0.0.18.tgz#6d96155e7263c958fbce6d4b7241b4725b72fbad"
   integrity sha512-XW1egQtPfsGI41w2AMZNFZrUIwFSQHTjVMZs0OaTpCAvht/QLoaPN8FQcsysMVypOhupG28J29yOorrc70otBQ==
 
-"@langchain/protocol@^0.0.19":
-  version "0.0.19"
-  resolved "https://registry.yarnpkg.com/@langchain/protocol/-/protocol-0.0.19.tgz#7fe43fed115dc34b3b4c246e8d5283fbcbfab7b0"
-  integrity sha512-9hKcRrH7cBX6gfutdfXPoft1OCchHe4FEpALoDJMl5Qu+n/YG5ynZmyu8+8cxORlPwHBoKTxggvXz+76M1yX1Q==
-
 "@pkgr/core@^0.3.6":
   version "0.3.6"
   resolved "https://registry.yarnpkg.com/@pkgr/core/-/core-0.3.6.tgz#3569708bd4be4d8870ba32bf1c456dac81600d97"
@@ -171,35 +166,35 @@
   resolved "https://registry.yarnpkg.com/@tsconfig/recommended/-/recommended-1.0.13.tgz#269fce3ad04ca70b93269ff44cca81b950f542da"
   integrity sha512-sySRuBfMKyKO/j2ZAhR8kSembhjuPEV4Ra3AHtmWLq51+iGaudr45crPSzNC5b7/Ctrh9dfUpBuTlYrH6rM58Q==
 
-"@turbo/darwin-64@2.10.12":
-  version "2.10.12"
-  resolved "https://registry.yarnpkg.com/@turbo/darwin-64/-/darwin-64-2.10.12.tgz#719ac12ae47caf7b4be855d672582cdbfde177ea"
-  integrity sha512-9nKgKoF6ZOUsM+or0OtNf+TTJSfGvDNP7ZFv/ZGWVwOSCkumyctQiTeHwB4UNljHTnC41AqylgbunLDHoccNrA==
+"@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-arm64@2.10.12":
-  version "2.10.12"
-  resolved "https://registry.yarnpkg.com/@turbo/darwin-arm64/-/darwin-arm64-2.10.12.tgz#ac2d3dde3a2407f8359ca2e3152690280cff2714"
-  integrity sha512-H4Elb1jqTZVeIC9bbcNwjSzemZ6RegoTOVHeuV5Osirt2Z8UguTyisMEkvZjPVZgMeN9J4ERZBFad40tFnkb7w==
+"@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/linux-64@2.10.12":
-  version "2.10.12"
-  resolved "https://registry.yarnpkg.com/@turbo/linux-64/-/linux-64-2.10.12.tgz#264a0ec88a1f69f93cf57dab20be1b4c50bf226c"
-  integrity sha512-lr7KIotukvjZwEXiFSYAeOH3BWzjFVBbSzTbv0fuGFsNukYyH0+g1hB5ecqnJkgkYU+KHEMG1edOhnjiKON1wQ==
+"@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-arm64@2.10.12":
-  version "2.10.12"
-  resolved "https://registry.yarnpkg.com/@turbo/linux-arm64/-/linux-arm64-2.10.12.tgz#3ee53d1f930d2bb65708e904971be0e765381e37"
-  integrity sha512-f0pZDTtvzB5SuNwuXBaKbZHUCMCukgc8nMlHEuvLmj91Fzec+MEbr3cAvGNor5htEDqZnO6Lxt9N/GPI/77oGA==
+"@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/windows-64@2.10.12":
-  version "2.10.12"
-  resolved "https://registry.yarnpkg.com/@turbo/windows-64/-/windows-64-2.10.12.tgz#ac0a0b7794f9a541e68e930383f48747f7e648ab"
-  integrity sha512-SDOueJRjS/QcykWf2KCRtTLmIl5YMKsLbXkXQGhDwcTXvKXZiS5ih5lBl/gkwZIpYFjqA/rAlfMzlAFcVHNe0g==
+"@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-arm64@2.10.12":
-  version "2.10.12"
-  resolved "https://registry.yarnpkg.com/@turbo/windows-arm64/-/windows-arm64-2.10.12.tgz#50eb6c20a20d0aab216d2b6aa13cc3100ea44106"
-  integrity sha512-0i0mVUa4kKk+/B3RwEwPMf9CB+T7ul56hn5FFHNA4VUNTOoLBEd6aNf3FaKfCatDNZ6cicCEf6if9QUTVyzzcA==
+"@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==
 
 "@types/esrecurse@^4.3.1":
   version "4.3.1"
@@ -221,110 +216,110 @@
   resolved "https://registry.yarnpkg.com/@types/json5/-/json5-0.0.29.tgz#ee28707ae94e11d2b827bcbe5270bcea7f3e71ee"
   integrity sha512-dRLjCWHYg4oaA77cxO64oO+7JwCwnIzkZPdrrC71jQmQtlhM556pwKo5bUzqvZndkVbeFLIIi+9TC40JNF5hNQ==
 
-"@typescript-eslint/eslint-plugin@^8.68.0":
-  version "8.68.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.68.0.tgz#a8fbdb1cf49aafaf16071b646daad890151bd149"
-  integrity sha512-WASHDpCm6qO5jj9g1a+8NiW5+GCkAyLReR56/4VruYmNgfUmqpxOfZ2Yfb8xGfJPWv5Qi6LSD8sXdces3vbp/Q==
+"@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==
   dependencies:
     "@eslint-community/regexpp" "^4.12.2"
-    "@typescript-eslint/scope-manager" "8.68.0"
-    "@typescript-eslint/type-utils" "8.68.0"
-    "@typescript-eslint/utils" "8.68.0"
-    "@typescript-eslint/visitor-keys" "8.68.0"
+    "@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"
     ignore "^7.0.5"
     natural-compare "^1.4.0"
     ts-api-utils "^2.5.0"
 
-"@typescript-eslint/parser@^8.68.0":
-  version "8.68.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-8.68.0.tgz#61de31481354c50457bc9621a7ed746779f09ee7"
-  integrity sha512-fHq2VC1kpyYfvEcbiMjOpySY4WS7voEp89yAThrHRX5sm9j2lzYppCb2umFMEed4fWcyeLjHxrz0mpjNBaBxMQ==
+"@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==
   dependencies:
-    "@typescript-eslint/scope-manager" "8.68.0"
-    "@typescript-eslint/types" "8.68.0"
-    "@typescript-eslint/typescript-estree" "8.68.0"
-    "@typescript-eslint/visitor-keys" "8.68.0"
+    "@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"
     debug "^4.4.3"
 
-"@typescript-eslint/project-service@8.68.0":
-  version "8.68.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/project-service/-/project-service-8.68.0.tgz#ea4b2869f59165c420cd7a4bbebc38039794e8cc"
-  integrity sha512-5GQtWZCXFcFYux955pvoS02WLc49pXNlvIxocKjS0clvwo3in1RdlzVKyiqQH9vE5AKWFLTaUgeQkOrTS+0Qxw==
+"@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==
   dependencies:
-    "@typescript-eslint/tsconfig-utils" "^8.68.0"
-    "@typescript-eslint/types" "^8.68.0"
+    "@typescript-eslint/tsconfig-utils" "^8.65.0"
+    "@typescript-eslint/types" "^8.65.0"
     debug "^4.4.3"
 
-"@typescript-eslint/scope-manager@8.68.0":
-  version "8.68.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-8.68.0.tgz#e5a13a1159497faeab4e48279bf07576045b1499"
-  integrity sha512-T5eXpcaJNg8bhjHJ8Rjp68Vq/QBteYtTKY8TZqVNPaUbuz0f6jI9t6aDkylwvalpAB9XTTFeFOjrjXAZ3YvmVA==
+"@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==
   dependencies:
-    "@typescript-eslint/types" "8.68.0"
-    "@typescript-eslint/visitor-keys" "8.68.0"
+    "@typescript-eslint/types" "8.65.0"
+    "@typescript-eslint/visitor-keys" "8.65.0"
 
-"@typescript-eslint/tsconfig-utils@8.68.0":
-  version "8.68.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.68.0.tgz#594d7a3c5952055b3c431fc563ca7fd1defcce18"
-  integrity sha512-F7zrGQfiJHojPwi8vhxZQC1tWtJzvL74cK/nqri2lk8YUXvYaYwl263xOJ69jDWPUk1hmcdoayFwk9lX09npVw==
+"@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@^8.68.0":
-  version "8.69.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.69.0.tgz#d3b0ccc781ab252a90a0b3989b9d1eb85ab59469"
-  integrity sha512-xNqK7YTDZsLniQMV/4rpFR8Z5JlqeRvVjuG1YgF/mdPVH84HSD19L8CczMA0qg2RfwEV231GHH3VnToJDo4MfQ==
+"@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@8.68.0":
-  version "8.68.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/type-utils/-/type-utils-8.68.0.tgz#8f3e838dbd740909db27053857468cd037b00220"
-  integrity sha512-X77zqoY1EjeWGs/0JNxeaMfp5C5lIz4Tw8y66F1Ne8Faq6g424sBNYM6xBAqElfGZPLpWS+CZAp0DXyKDzWiHg==
+"@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==
   dependencies:
-    "@typescript-eslint/types" "8.68.0"
-    "@typescript-eslint/typescript-estree" "8.68.0"
-    "@typescript-eslint/utils" "8.68.0"
+    "@typescript-eslint/types" "8.65.0"
+    "@typescript-eslint/typescript-estree" "8.65.0"
+    "@typescript-eslint/utils" "8.65.0"
     debug "^4.4.3"
     ts-api-utils "^2.5.0"
 
-"@typescript-eslint/types@8.68.0":
-  version "8.68.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-8.68.0.tgz#3f9d4e62fbe5728f09403cdc7b4d58af842ac1af"
-  integrity sha512-9RnpsGJjrAllCMefGVVsImJM24YurhC0Q1h4UbvivtvOqXmR/vEJge2OoE++z9m6hyg8T1Q8t5SNT6tHSbrxcg==
+"@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@^8.68.0":
-  version "8.69.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-8.69.0.tgz#5d9ad3f707c2e4f70a2db540031104df3e63bcf5"
-  integrity sha512-K3VrubUPhlo9VDBS6QdI8YB5j7ClpqLRdefcz6PFrhnwicehBweqQ9Evhl4l+FYz0HdDmMqIiSX0aldGRYtDCA==
+"@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@8.68.0":
-  version "8.68.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-8.68.0.tgz#bf4165029825138ac27231a3ff02923ecd977f38"
-  integrity sha512-OKKsD0tYmoNiU5PW2zehO1yO56jYOm1ShYlxon/Z0SJNidAkdVg86eg9ruRuoXf8xfnuWZGbwDsStkoXbZtIIA==
+"@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==
   dependencies:
-    "@typescript-eslint/project-service" "8.68.0"
-    "@typescript-eslint/tsconfig-utils" "8.68.0"
-    "@typescript-eslint/types" "8.68.0"
-    "@typescript-eslint/visitor-keys" "8.68.0"
+    "@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"
     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@8.68.0":
-  version "8.68.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/utils/-/utils-8.68.0.tgz#00547f2c8de8aca2a3c21752a9711f73206fd36d"
-  integrity sha512-PB5gJMMOg0Q5P1tsgWtEAqQacJXq0qEqRHDX/YJ4FaTMLfZPpHB3gjl2EJuiZyPABxmj4ZQYiY9m1bdAJ5y7tQ==
+"@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==
   dependencies:
     "@eslint-community/eslint-utils" "^4.9.1"
-    "@typescript-eslint/scope-manager" "8.68.0"
-    "@typescript-eslint/types" "8.68.0"
-    "@typescript-eslint/typescript-estree" "8.68.0"
+    "@typescript-eslint/scope-manager" "8.65.0"
+    "@typescript-eslint/types" "8.65.0"
+    "@typescript-eslint/typescript-estree" "8.65.0"
 
-"@typescript-eslint/visitor-keys@8.68.0":
-  version "8.68.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-8.68.0.tgz#78db3c9bb258a0309d9e2b1b617127c3a8fb1f54"
-  integrity sha512-YR65gGdGvTUAWLldC3xLOvOzamdGzB4A5/N8rehEaHs3Zvoe39BhgY+u0SPch1OvrVTfLcc55wsSgK2NcnTS/A==
+"@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==
   dependencies:
-    "@typescript-eslint/types" "8.68.0"
+    "@typescript-eslint/types" "8.65.0"
     eslint-visitor-keys "^5.0.0"
 
 "@typescript/typescript-aix-ppc64@7.0.2":
@@ -886,10 +881,10 @@ eslint-visitor-keys@^5.0.0, eslint-visitor-keys@^5.0.1:
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-5.0.1.tgz#9e3c9489697824d2d4ce3a8ad12628f91e9f59be"
   integrity sha512-tD40eHxA35h0PEIZNeIjkHoDR4YjjJp34biM0mDvplBe//mB+IHCqHDGV7pxF+7MklTvighcCPPZC7ynWyjdTA==
 
-eslint@^10.9.1:
-  version "10.9.1"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-10.9.1.tgz#409da5c41a5536d5a849f8555a18ca7ef1eb963b"
-  integrity sha512-9VaAkDURekixUQJy0oJYl2DcN6oKMfxay7XzaGYAWQwsb6qfKf+x76R2k1L8kb1boc+FyCAaTA9GmiKaaiaF+A==
+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==
   dependencies:
     "@eslint-community/eslint-utils" "^4.8.0"
     "@eslint-community/regexpp" "^4.12.2"
@@ -1913,17 +1908,17 @@ tsconfig-paths@^3.15.0:
     minimist "^1.2.6"
     strip-bom "^3.0.0"
 
-turbo@^2.10.12:
-  version "2.10.12"
-  resolved "https://registry.yarnpkg.com/turbo/-/turbo-2.10.12.tgz#22f552bd88182d58365960a02e5f45e628fb965b"
-  integrity sha512-AswgMPnpOoaVZHrrSBejETzEbuIA69OVGwfkHwfrY0A23VjWXBANzgq9+OymWOHAIArB7D1+1z498WY8fGg1Jw==
+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==
   optionalDependencies:
-    "@turbo/darwin-64" "2.10.12"
-    "@turbo/darwin-arm64" "2.10.12"
-    "@turbo/linux-64" "2.10.12"
-    "@turbo/linux-arm64" "2.10.12"
-    "@turbo/windows-64" "2.10.12"
-    "@turbo/windows-arm64" "2.10.12"
+    "@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"
 
 type-check@^0.4.0, type-check@~0.4.0:
   version "0.4.0"

libs/cli/pyproject.toml

@@ -23,8 +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-runtime-inmem>=0.7 ; python_version >= '3.11'",
+    "langgraph-api[inmem]>=0.15.0.dev0,<1.0.0 ; python_version >= '3.11'",
 ]
 
 [project.urls]
@@ -58,6 +57,10 @@ dev = [
 [tool.uv]
 default-groups = ['dev']
 
+[tool.uv.sources]
+langgraph-api = { git = "https://github.com/langchain-ai/langgraph-api.git", branch = "cwlbraa/embed-core-local-dev", subdirectory = "api" }
+langgraph-core-bin = { git = "https://github.com/langchain-ai/langgraph-api.git", branch = "cwlbraa/embed-core-local-dev", subdirectory = "core_python" }
+
 [tool.hatch.build.targets.wheel]
 include = ["langgraph_cli"]
 

libs/langgraph/langgraph/pregel/protocol.py

@@ -2,7 +2,7 @@ from __future__ import annotations
 
 from abc import abstractmethod
 from collections.abc import AsyncIterator, Callable, Iterator, Sequence
-from typing import Any, Generic, Literal, overload
+from typing import Any, Generic, Literal, cast, overload
 
 from langchain_core.runnables import Runnable, RunnableConfig
 from langchain_core.runnables.graph import Graph as DrawableGraph
@@ -277,12 +277,12 @@ class StreamProtocol:
 
     modes: set[StreamMode]
 
-    __call__: Callable[[StreamChunk], None]
+    __call__: Callable[[Self, StreamChunk], None]
 
     def __init__(
         self,
         __call__: Callable[[StreamChunk], None],
         modes: set[StreamMode],
     ) -> None:
-        self.__call__ = __call__
+        self.__call__ = cast(Callable[[Self, StreamChunk], None], __call__)
         self.modes = modes

libs/langgraph/langgraph/stream/run_stream.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 import asyncio
 from collections.abc import AsyncIterator, Awaitable, Callable, Iterator, Mapping
 from types import MappingProxyType, TracebackType
-from typing import TYPE_CHECKING, Any, NoReturn
+from typing import TYPE_CHECKING, Any
 
 from langchain_core._api import beta
 
@@ -33,26 +33,6 @@ async def _adrive_until_done(pump: Callable[[], Awaitable[bool]]) -> None:
         pass
 
 
-def _raise_missing_projection(run: object, name: str) -> NoReturn:
-    """Raise after normal attribute lookup fails for a projection.
-
-    Registered native projections are installed directly on the run instance
-    during `__init__`, so `__getattr__` is never called for them. At this point
-    the requested name is necessarily missing; the mux is inspected only to
-    include the valid registered projection names in the error message.
-
-    Read `_mux` directly from `__dict__` because it may not exist yet on a
-    partially initialized instance. Accessing `run._mux` in that case would
-    invoke `__getattr__` again and recurse indefinitely.
-    """
-    mux = run.__dict__.get("_mux")
-    registered = sorted(mux.native_keys) if mux is not None else []
-    raise AttributeError(
-        f"{type(run).__name__!r} object has no attribute {name!r} "
-        f"(registered projections: {', '.join(registered) or 'none'})"
-    )
-
-
 @beta(message="The v3 streaming protocol on Pregel is experimental.")
 class GraphRunStream:
     """Sync run stream with caller-driven pumping.
@@ -74,32 +54,15 @@ class GraphRunStream:
         experimental and may change.
     """
 
-    # Native projections, attached dynamically by the `setattr` loop in
-    # `__init__` and declared here so type checkers see them.
-    #
-    # Always registered by `stream_events(version="v3")`:
+    # 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]
-    # Registered on demand via `compile(transformers=...)` or
-    # `stream_events(transformers=...)`; reading one whose transformer was not
-    # registered raises AttributeError. Projections contributed by transformers
-    # outside this package are covered by `__getattr__` instead.
-    updates: StreamChannel[dict[str, Any]]
-    custom: StreamChannel[Any]
-    checkpoints: StreamChannel[dict[str, Any]]
-    debug: StreamChannel[dict[str, Any]]
-    tasks: StreamChannel[dict[str, Any]]
-
-    def __getattr__(self, name: str) -> StreamChannel[Any]:
-        """Type the projections of transformers declared outside this package.
-
-        Projection names come from a registry, so no annotation here can name
-        them all. The cost is that a misspelling type-checks too, and fails at
-        runtime instead.
-        """
-        _raise_missing_projection(self, name)
 
     def __init__(
         self,
@@ -382,24 +345,15 @@ class AsyncGraphRunStream:
         experimental and may change.
     """
 
-    # Native projections, attached dynamically by the `setattr` loop in
-    # `__init__` and declared here so type checkers see them.
-    #
-    # Always registered by `astream_events(version="v3")`:
+    # 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]
-    # Registered on demand; see `GraphRunStream`.
-    updates: StreamChannel[dict[str, Any]]
-    custom: StreamChannel[Any]
-    checkpoints: StreamChannel[dict[str, Any]]
-    debug: StreamChannel[dict[str, Any]]
-    tasks: StreamChannel[dict[str, Any]]
-
-    def __getattr__(self, name: str) -> StreamChannel[Any]:
-        """Type projections declared elsewhere. See `GraphRunStream`."""
-        _raise_missing_projection(self, name)
 
     def __init__(
         self,

libs/langgraph/tests/test_stream_events_v3.py

@@ -6,7 +6,6 @@ Type-narrowing is validated via `assert_type` calls in `_check_type_narrowing`.
 
 from __future__ import annotations
 
-import copy
 import operator
 import sys
 from dataclasses import dataclass
@@ -35,10 +34,8 @@ from langgraph.stream import (
     GraphRunStream,
     LifecyclePayload,
     StreamChannel,
-    StreamTransformer,
     SubgraphRunStream,
 )
-from langgraph.stream._types import ProtocolEvent
 from langgraph.types import (
     CheckpointPayload,
     CheckpointStreamPart,
@@ -1202,29 +1199,6 @@ def _check_type_narrowing(part: StreamPart[_StateT, _OutputT]) -> None:
 # type and the always-registered native projections.
 
 
-class _MarkerTransformer(StreamTransformer):
-    """Native transformer contributing a key this module doesn't declare.
-
-    Stands in for any transformer defined outside this package — projections
-    whose names `GraphRunStream` can't enumerate, so they resolve through
-    `__getattr__` instead of a class annotation.
-    """
-
-    _native = True
-
-    def __init__(self, scope: tuple[str, ...] = ()) -> None:
-        super().__init__(scope)
-        self._log: StreamChannel[str] = StreamChannel()
-
-    def init(self) -> dict[str, Any]:
-        return {"marker": self._log}
-
-    def process(self, event: ProtocolEvent) -> bool:
-        if event["method"] == "values":
-            self._log.push("saw_values")
-        return True
-
-
 def _check_stream_events_v3_typing() -> None:
     """Compile-time checks for sync v3 typing — never called at runtime."""
     graph = _make_simple_graph().compile()
@@ -1234,16 +1208,6 @@ def _check_stream_events_v3_typing() -> None:
     assert_type(run.messages, StreamChannel[ChatModelStream])
     assert_type(run.lifecycle, StreamChannel[LifecyclePayload])
     assert_type(run.subgraphs, StreamChannel[SubgraphRunStream])
-    # Opt-in projections from transformers this package ships carry their real
-    # item type even though they are only present once registered.
-    assert_type(run.updates, StreamChannel[dict[str, Any]])
-    assert_type(run.custom, StreamChannel[Any])
-    assert_type(run.checkpoints, StreamChannel[dict[str, Any]])
-    assert_type(run.debug, StreamChannel[dict[str, Any]])
-    assert_type(run.tasks, StreamChannel[dict[str, Any]])
-    # Projections this module can't enumerate resolve through `__getattr__`
-    # as `StreamChannel[Any]` rather than failing with attr-defined.
-    assert_type(run.marker, StreamChannel[Any])
 
 
 async def _check_astream_events_v3_typing() -> None:
@@ -1255,66 +1219,3 @@ async def _check_astream_events_v3_typing() -> None:
     assert_type(run.messages, StreamChannel[AsyncChatModelStream])
     assert_type(run.lifecycle, StreamChannel[LifecyclePayload])
     assert_type(run.subgraphs, StreamChannel[AsyncSubgraphRunStream])
-    assert_type(run.updates, StreamChannel[dict[str, Any]])
-    assert_type(run.custom, StreamChannel[Any])
-    assert_type(run.checkpoints, StreamChannel[dict[str, Any]])
-    assert_type(run.debug, StreamChannel[dict[str, Any]])
-    assert_type(run.tasks, StreamChannel[dict[str, Any]])
-    assert_type(run.marker, StreamChannel[Any])
-
-
-def test_undeclared_native_projection_is_attached() -> None:
-    """A native projection this module doesn't declare still works at runtime.
-
-    `__getattr__` is a type-checker fallback only — it must not shadow the
-    `setattr` loop that attaches registered native projections.
-    """
-    graph = _make_simple_graph().compile()
-    run = graph.stream_events(
-        _SIMPLE_INPUT, version="v3", transformers=[_MarkerTransformer]
-    )
-
-    marker_iter = iter(run.marker)
-    assert run.output is not None
-    assert run.marker is run.extensions["marker"]
-    assert "saw_values" in list(marker_iter)
-
-
-def test_unregistered_projection_raises_attribute_error() -> None:
-    """An unregistered projection name still fails at runtime.
-
-    The `__getattr__` fallback exists to satisfy type checkers; it must not
-    make unknown names resolve to anything. The message lists what *is*
-    registered so a typo is diagnosable from the traceback alone.
-    """
-    graph = _make_simple_graph().compile()
-    run = graph.stream_events(_SIMPLE_INPUT, version="v3")
-
-    # `marker` type-checks via `__getattr__` but was never registered here.
-    with pytest.raises(AttributeError) as exc_info:
-        run.marker
-
-    message = str(exc_info.value)
-    assert "marker" in message
-    # The always-registered natives are listed as the alternatives.
-    assert "messages" in message
-
-    # Registered projections still resolve, and the run is unaffected.
-    assert isinstance(run.messages, StreamChannel)
-    assert run.output is not None
-
-
-def test_getattr_fallback_does_not_recurse_before_init() -> None:
-    """`__getattr__` reads the mux from `__dict__`, so it is safe pre-init.
-
-    `self._mux` would re-enter `__getattr__` and overflow the stack when the
-    attribute is missing, which is reachable via `hasattr` / `copy` / pickle
-    probing on a partially constructed instance.
-    """
-    bare = GraphRunStream.__new__(GraphRunStream)
-
-    with pytest.raises(AttributeError, match="anything"):
-        bare.anything
-
-    assert hasattr(bare, "anything") is False
-    assert copy.copy(bare) is not None

libs/sdk-py/pyproject.toml

@@ -36,7 +36,7 @@ test = [
     "pytest-watch",
 ]
 lint = [
-    "ruff==0.16.5",
+    "ruff==0.16.1",
     "codespell",
     "ty",
     "starlette",

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

@@ -590,10 +590,10 @@ def test_v3_streaming_sync_surface_smoke():
     assert results["values"] == fake.state["values"]
     messages_result = results["messages"]
     assert isinstance(messages_result, list)
-    assert [str(m.text) for m in messages_result] == ["hi"]
+    assert [str(m.text) for m in messages_result] == ["hi"]  # ty: ignore[unresolved-attribute]
     tools_result = results["tools"]
     assert isinstance(tools_result, list)
-    assert tools_result[0].name == "search"
+    assert tools_result[0].name == "search"  # ty: ignore[unresolved-attribute]
     assert results["progress"] == [{"name": "progress", "step": 1}]
     assert final == {"final": True}