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Author SHA1 Message Date
ccurme
85012ae601 chore(infra): update default lib on release workflow (#34256) 2025-12-08 14:35:43 -05:00
ccurme
aa0f4fb927 release(langchain): 1.1.3 (#34255) langchain==1.1.3 2025-12-08 14:29:40 -05:00
Sydney Runkle
d18cdc6f32 feat: add agent name to AIMessage (#34254) 2025-12-08 14:23:12 -05:00
Mason Daugherty
8a5f46322b feat(anthropic): tool search support (#34119) 2025-12-08 10:46:37 -05:00
Mason Daugherty
a0e86b18bf release(core): 1.1.2 (#34253) 
and bump deps
langchain-core==1.1.2 		2025-12-08 10:24:03 -05:00
Nhan Nguyen
6affec92ce fix(core): pass tool_call_id to on_tool_start callback (#34235) 
## Summary

When invoking a tool with a `ToolCall`, the `tool_call_id` is extracted
but was **not forwarded** to callback handlers in `on_tool_start`. This
made it impossible for callback handlers to correlate tool executions
with the original LLM tool calls.

This fix adds `tool_call_id=tool_call_id` to both:
- Sync `run()` method's `on_tool_start` call
- Async `arun()` method's `on_tool_start` call

## Changes

- **`libs/core/langchain_core/tools/base.py`**: Added `tool_call_id`
parameter to `on_tool_start` calls (2 lines)
- **`libs/core/tests/unit_tests/test_tools.py`**: Added 6 comprehensive
tests covering:
  - Sync tool invocation via `invoke()`
  - Async tool invocation via `ainvoke()`
  - `tool_call_id` is `None` when invoked without a ToolCall
  - Empty string `tool_call_id` edge case
  - Direct `run()` method
  - Direct `arun()` method

## Test plan

- [x] All 147 existing tests pass
- [x] 6 new tests added and passing
- [x] Linting passes

Fixes #34168

---

This PR was developed with AI assistance (Claude).

---------

Co-authored-by: Mason Daugherty <github@mdrxy.com>
Co-authored-by: Mason Daugherty <mason@langchain.dev>
 2025-12-08 10:15:18 -05:00
Christophe Bornet
a64aee310c chore(core): improve typing of messages utils functions (#34225) 
With this we get the correct types for `_runnable_support` annotated
functions.
* return list[BaseMessage] when messages is not None
* return Runnable when messages is None
* typing of function args
 2025-12-08 09:59:43 -05:00
Paul
ba6c2590ae fix(core): prevent async task garbage collection (RUF006) (#34238) 
# PR Title: fix(core): prevent async task garbage collection (RUF006)

## Description
This PR addresses a cryptic issue (flagged by Ruff rule RUF006) where
`asyncio` tasks created via `loop.create_task` could be garbage
collected mid-execution because no strong reference was maintained.

In `libs/core/langchain_core/language_models/llms.py`, the retry
decorator's `_before_sleep` hook creates a fire-and-forget task for
logging/callbacks. If the garbage collector runs before this task
completes, the task may be destroyed, leading to silent failures.

## Changes
- Introduced a module-level set `_background_tasks` to hold strong
references to running tasks.
- Updated `_before_sleep` to add new tasks to this set.
- Added a `done_callback` to remove the task from the set upon
completion, preventing memory leaks.

## Verification
- Verified logic with a standalone script to ensure tasks are
added/removed from the set correctly.
- This is a standard pattern recommended in the Python `asyncio`
documentation.

## Checklist
- [x] I have read the contributing guidelines.
- [x] I have run tests locally (logic verification).

---------

Co-authored-by: Mason Daugherty <mason@langchain.dev>
Co-authored-by: Mason Daugherty <github@mdrxy.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
 2025-12-08 09:50:55 -05:00
Christophe Bornet
bb71f53585 chore(core): use anext and deprecate py_anext (#34211) 
LangChain uses Python 3.10+ so `py_anext` isn't needed anymore.

---------

Co-authored-by: Mason Daugherty <mason@langchain.dev>
 2025-12-08 09:50:40 -05:00
Mason Daugherty
9875ffbabc feat(core): support google maps grounding in genai block translator (#34244) 
https://github.com/langchain-ai/langchain-google/pull/1330

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
 2025-12-08 09:44:43 -05:00
ccurme
b5efafe80c release(openai): 1.1.1 (#34252) langchain-openai==1.1.1 2025-12-08 09:23:13 -05:00
Marlene
ff3353f02f fix(openai): Fixing error that comes up using the Responses API with built-in tools and custom tools (#34136) 2025-12-08 09:10:44 -05:00
Mason Daugherty
3ace4e3680 docs(core,groq,openai): nits for ref docs (#34243) 2025-12-07 19:45:38 -05:00
Mason Daugherty
80c397019f docs(core): improve style for refs (#34227) 2025-12-05 15:41:22 -05:00
Mason Daugherty
4a42158e6c feat(anthropic): add effort support (#34116) 2025-12-05 13:44:42 -05:00
Mason Daugherty
7ba3e80057 test(openai): mark test_structured_output_and_tools flaky (#34223) 
Often raises `KeyError: 'explanation'`
 2025-12-05 11:26:17 -05:00
김주호
50e27a447b feat(langchain): add support for Upstage (Solar) in init_chat_model (#34220) 2025-12-05 09:37:37 -05:00
Sydney Runkle
78c10f8790 chore: update core dep in lockfiles (#34216) 2025-12-04 15:30:42 -05:00
Mason Daugherty
ccfc9f795a chore(infra): delete duplicate forum link (#34214) 2025-12-04 14:53:49 -05:00
Mason Daugherty
b21926fe6c docs(core): update StrOutputParser docstring (#34213) 2025-12-04 14:53:36 -05:00
Sydney Runkle
f1ad0da8f5 release: langchain-core 1.1.1 (#34212) langchain-core==1.1.1 2025-12-04 14:44:18 -05:00
Sydney Runkle
f67af34ea0 release: langchain 1.1.2 (#34210) langchain==1.1.2 2025-12-04 12:57:59 -05:00
Sydney Runkle
3030ffc248 fix: simplify summarization cutoff logic (#34195) 
This PR changes how we find the cutoff for summarization, summarizing
content more eagerly if the initial cutoff point isn't safe (ie, would
break apart AI + tool message pairs)

This new algorithm is quite simple - it looks at the initial cutoff
point, if it's not safe, moves forward through the message list until it
finds the first non tool message.

For example:

```
H
AI
TM
--- theoretical cutoff based keep=('messages', 3)
TM
AI
TM
```

```
H
AI
TM
TM
--- actual cutoff, more aggressive summarization
AI
TM
```
 2025-12-04 12:44:50 -05:00
Sydney Runkle
1ad9de4b45 release: langchain 1.1.1 (#34206) langchain==1.1.1 2025-12-04 10:46:30 -05:00
Mason Daugherty
b95cb770e8 docs(standard-tests): ensure first admonition is expanded (#34194) 
better UX
 2025-12-03 15:03:11 -05:00
William FH
1867521d1a feat: Use uuid7 for run ids (#34172) 
Co-authored-by: Sydney Runkle <54324534+sydney-runkle@users.noreply.github.com>
Co-authored-by: Sydney Runkle <sydneymarierunkle@gmail.com>
 2025-12-03 10:09:10 -08:00
Sydney Runkle
8e3ca21bd3 fix: tool call id bug introduced w/ runtime injection (#34185) 
Fixes https://github.com/langchain-ai/langchain/issues/34169

Patching logic introduced in
https://github.com/langchain-ai/langchain/pull/33999
 2025-12-03 12:18:04 -05:00
William FH
e92c817518 chore: update test to be compatible with mem-optimized runtree (#34176) 2025-12-03 08:40:06 -08:00
Sydney Runkle
28727618b3 chore: disable blockbuster for langchain-classic (#34186) 
Blockbuster failing w/ blocking sqlalchemy calls and not worth the
maintenance burden right now in `langchain-classic`
 2025-12-03 10:47:51 -05:00
Mason Daugherty
3108b14164 docs(standard-tests): fix supports_json_mode docstring (#34181) 2025-12-03 00:12:57 -05:00
Mason Daugherty
1922adc092 docs(standard-tests): fix formatting bug, rearrange admonition (#34180) 2025-12-02 23:40:11 -05:00
Mason Daugherty
4a242a8a4f docs(standard-tests): enrich doc to indicate missing default values (#34179) 2025-12-02 23:32:21 -05:00
Mason Daugherty
064b37f90e docs(standard-tests): improve doc for structured_output_kwargs and supports_json_mode (#34178) 2025-12-02 23:18:53 -05:00
Mason Daugherty
062678fa18 fix(standard-tests): fix broken links (#34175) 2025-12-02 20:52:27 -05:00
Mason Daugherty
5d3e3d3f31 fix(standard-tests): remove broken code block docstring title (#34173) 2025-12-02 20:18:31 -05:00
Mason Daugherty
5a7cf87626 style(standard-tests): some fencing (#34171) 2025-12-02 14:42:26 -05:00
ccurme
c63f23d233 revert(model-profiles): update docs link (#34162) 2025-12-01 17:29:45 +00:00
Mason Daugherty
b7091d391d feat(anthropic): auto append relevant beta headers (#34113) 2025-12-01 12:20:41 -05:00
ccurme
7a2952210e fix(langchain): (SummarizationMiddleware) adjust token counts based on model (#34161) 2025-12-01 16:22:44 +00:00
ccurme
7549845d82 chore(anthropic): vcr integration test (#34160) 2025-12-01 15:28:28 +00:00
Mason Daugherty
878f033ed7 docs(langchain): docstrings for summariziation middleware types (#34158) 
improving devx :)
 2025-12-01 09:39:33 -05:00
Steffen Hausmann
4065106c2e fix(langchain): add types to human_in_the_loop middleware (#34137) 
The `HumanInTheLoopMiddleware` is missing a type annotation for the
context schema. Without the fix in this PR, the following code does not
type check:

```
graph = create_agent(
    "gpt-5",
    tools=[send_email_tool, read_email_tool],
    middleware=[
        HumanInTheLoopMiddleware(
            interrupt_on={
                # Require approval or rejection for sending emails
                "send_email_tool": {
                    "allowed_decisions": ["approve", "reject"],
                },
                # Auto-approve reading emails
                "read_email_tool": False,
            }
        ),
    ],
    context_schema=ContextSchema,
)
```

```
Argument of type "list[HumanInTheLoopMiddleware]" cannot be assigned to parameter "middleware" of type "Sequence[AgentMiddleware[StateT_co@create_agent, ContextT@create_agent]]" in function "create_agent"
  "HumanInTheLoopMiddleware" is not assignable to "AgentMiddleware[AgentState[Unknown], ContextSchema | None]"
    Type parameter "ContextT@AgentMiddleware" is invariant, but "None" is not the same as "ContextSchema | None"
```
 2025-12-01 08:46:38 -05:00
Mason Daugherty
12df938ace docs(core): update docstrings in RunnableConfig, dereference_refs (#34131) 2025-11-28 03:55:37 -05:00
Mason Daugherty
65ee43cc10 chore(infra): update agent files, remove top-level pyproject (#34128) 2025-11-27 21:06:43 -05:00
Mason Daugherty
fe7c000fc1 fix(model-profiles): update docs link (#34127) 2025-11-28 00:19:36 +00:00
Mason Daugherty
dad50e5624 chore(infra): updated allowed scopes in PR lint configuration (#34115) 2025-11-27 00:34:15 -05:00
Mason Daugherty
0a6d01e61d docs(anthropic,core,langchain): updates (#34106) 2025-11-25 17:58:09 -05:00
Mason Daugherty
c6f8b0875a style(core,langchain,qdrant): fix some docstrings for refs (#34105) 2025-11-25 13:58:53 -05:00
Mason Daugherty
4c3800d743 chore(infra): update PR template, agent files (#34104) 2025-11-25 13:58:41 -05:00
dependabot[bot]
7fe1c4b78f chore(deps): bump actions/checkout from 5 to 6 (#34083) 
Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to
6.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/checkout/releases">actions/checkout's
releases</a>.</em></p>
<blockquote>
<h2>v6.0.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Update README to include Node.js 24 support details and requirements
by <a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/2248">actions/checkout#2248</a></li>
<li>Persist creds to a separate file by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2286">actions/checkout#2286</a></li>
<li>v6-beta by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2298">actions/checkout#2298</a></li>
<li>update readme/changelog for v6 by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2311">actions/checkout#2311</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/checkout/compare/v5.0.0...v6.0.0">https://github.com/actions/checkout/compare/v5.0.0...v6.0.0</a></p>
<h2>v6-beta</h2>
<h2>What's Changed</h2>
<p>Updated persist-credentials to store the credentials under
<code>$RUNNER_TEMP</code> instead of directly in the local git
config.</p>
<p>This requires a minimum Actions Runner version of <a
href="https://github.com/actions/runner/releases/tag/v2.329.0">v2.329.0</a>
to access the persisted credentials for <a
href="https://docs.github.com/en/actions/tutorials/use-containerized-services/create-a-docker-container-action">Docker
container action</a> scenarios.</p>
<h2>v5.0.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Port v6 cleanup to v5 by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2301">actions/checkout#2301</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/checkout/compare/v5...v5.0.1">https://github.com/actions/checkout/compare/v5...v5.0.1</a></p>
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<summary>Changelog</summary>
<p><em>Sourced from <a
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<blockquote>
<h1>Changelog</h1>
<h2>V6.0.0</h2>
<ul>
<li>Persist creds to a separate file by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2286">actions/checkout#2286</a></li>
<li>Update README to include Node.js 24 support details and requirements
by <a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/2248">actions/checkout#2248</a></li>
</ul>
<h2>V5.0.1</h2>
<ul>
<li>Port v6 cleanup to v5 by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2301">actions/checkout#2301</a></li>
</ul>
<h2>V5.0.0</h2>
<ul>
<li>Update actions checkout to use node 24 by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2226">actions/checkout#2226</a></li>
</ul>
<h2>V4.3.1</h2>
<ul>
<li>Port v6 cleanup to v4 by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2305">actions/checkout#2305</a></li>
</ul>
<h2>V4.3.0</h2>
<ul>
<li>docs: update README.md by <a
href="https://github.com/motss"><code>@​motss</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1971">actions/checkout#1971</a></li>
<li>Add internal repos for checking out multiple repositories by <a
href="https://github.com/mouismail"><code>@​mouismail</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1977">actions/checkout#1977</a></li>
<li>Documentation update - add recommended permissions to Readme by <a
href="https://github.com/benwells"><code>@​benwells</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2043">actions/checkout#2043</a></li>
<li>Adjust positioning of user email note and permissions heading by <a
href="https://github.com/joshmgross"><code>@​joshmgross</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2044">actions/checkout#2044</a></li>
<li>Update README.md by <a
href="https://github.com/nebuk89"><code>@​nebuk89</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2194">actions/checkout#2194</a></li>
<li>Update CODEOWNERS for actions by <a
href="https://github.com/TingluoHuang"><code>@​TingluoHuang</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/2224">actions/checkout#2224</a></li>
<li>Update package dependencies by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2236">actions/checkout#2236</a></li>
</ul>
<h2>v4.2.2</h2>
<ul>
<li><code>url-helper.ts</code> now leverages well-known environment
variables by <a href="https://github.com/jww3"><code>@​jww3</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/1941">actions/checkout#1941</a></li>
<li>Expand unit test coverage for <code>isGhes</code> by <a
href="https://github.com/jww3"><code>@​jww3</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1946">actions/checkout#1946</a></li>
</ul>
<h2>v4.2.1</h2>
<ul>
<li>Check out other refs/* by commit if provided, fall back to ref by <a
href="https://github.com/orhantoy"><code>@​orhantoy</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1924">actions/checkout#1924</a></li>
</ul>
<h2>v4.2.0</h2>
<ul>
<li>Add Ref and Commit outputs by <a
href="https://github.com/lucacome"><code>@​lucacome</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1180">actions/checkout#1180</a></li>
<li>Dependency updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>- <a
href="https://redirect.github.com/actions/checkout/pull/1777">actions/checkout#1777</a>,
<a
href="https://redirect.github.com/actions/checkout/pull/1872">actions/checkout#1872</a></li>
</ul>
<h2>v4.1.7</h2>
<ul>
<li>Bump the minor-npm-dependencies group across 1 directory with 4
updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
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<li>Pin actions/checkout's own workflows to a known, good, stable
version. by <a href="https://github.com/jww3"><code>@​jww3</code></a> in
<a
href="https://redirect.github.com/actions/checkout/pull/1776">actions/checkout#1776</a></li>
</ul>
<h2>v4.1.6</h2>
<ul>
<li>Check platform to set archive extension appropriately by <a
href="https://github.com/cory-miller"><code>@​cory-miller</code></a> in
<a
href="https://redirect.github.com/actions/checkout/pull/1732">actions/checkout#1732</a></li>
</ul>
<h2>v4.1.5</h2>
<ul>
<li>Update NPM dependencies by <a
href="https://github.com/cory-miller"><code>@​cory-miller</code></a> in
<a
href="https://redirect.github.com/actions/checkout/pull/1703">actions/checkout#1703</a></li>
<li>Bump github/codeql-action from 2 to 3 by <a
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<li>Bump actions/upload-artifact from 2 to 4 by <a
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<!-- raw HTML omitted -->
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<p>... (truncated)</p>
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<details>
<summary>Commits</summary>
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<li><a
href="1af3b93b68"><code>1af3b93</code></a>
update readme/changelog for v6 (<a
href="https://redirect.github.com/actions/checkout/issues/2311">#2311</a>)</li>
<li><a
href="71cf2267d8"><code>71cf226</code></a>
v6-beta (<a
href="https://redirect.github.com/actions/checkout/issues/2298">#2298</a>)</li>
<li><a
href="069c695914"><code>069c695</code></a>
Persist creds to a separate file (<a
href="https://redirect.github.com/actions/checkout/issues/2286">#2286</a>)</li>
<li><a
href="ff7abcd0c3"><code>ff7abcd</code></a>
Update README to include Node.js 24 support details and requirements (<a
href="https://redirect.github.com/actions/checkout/issues/2248">#2248</a>)</li>
<li>See full diff in <a
href="https://github.com/actions/checkout/compare/v5...v6">compare
view</a></li>
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Mason Daugherty <mason@langchain.dev>
 2025-11-24 19:10:28 -05:00