Commit Graph

14335 Commits

Author SHA1 Message Date
ccurme
002d623f2d feat: (core, standard-tests) support PDF inputs in ToolMessages (#33183) 2025-10-01 10:16:16 -04:00
Mohammad Mohtashim
34f8031bd9 feat(langchain): Using Structured Response as Key in Output Schema for Middleware Agent (#33159)
- **Description:** Changing the key from `response` to
`structured_response` for middleware agent to keep it sync with agent
without middleware. This a breaking change.
 - **Issue:** #33154
2025-10-01 03:24:59 +00:00
Mason Daugherty
a541b5bee1 chore(infra): rfc README.md for better presentation (#33172) 2025-09-30 17:44:42 -04:00
Mason Daugherty
3e970506ba chore(core): remove runnable section from README.md (#33171) 2025-09-30 17:15:31 -04:00
Mason Daugherty
d1b0196faa chore(infra): whitespace fix (#33170) 2025-09-30 17:14:55 -04:00
ccurme
aac69839a9 release(openai): 0.3.34 (#33169) 2025-09-30 16:48:39 -04:00
ccurme
64141072a3 feat(openai): support openai sdk 2.0 (#33168) 2025-09-30 16:34:00 -04:00
Mason Daugherty
0795be2a04 docs(core): remove non-existent param from as_tool docstring (#33165) 2025-09-30 19:43:34 +00:00
Eugene Yurtsev
9c97597175 chore(langchain_v1): expose middleware decorators and selected messages (#33163)
* Make it easy to improve the middleware shortcuts
* Export the messages that we're confident we'll expose
2025-09-30 14:14:57 -04:00
Sydney Runkle
eed0f6c289 feat(langchain): todo middleware (#33152)
Porting the [planning
middleware](39c0138d0f/src/deepagents/middleware.py (L21))
over from deepagents.

Also adding the ability to configure:
* System prompt
* Tool description

```py
from langchain.agents.middleware.planning import PlanningMiddleware
from langchain.agents import create_agent

agent = create_agent("openai:gpt-4o", middleware=[PlanningMiddleware()])

result = await agent.invoke({"messages": [HumanMessage("Help me refactor my codebase")]})

print(result["todos"])  # Array of todo items with status tracking
```
2025-09-30 02:23:26 +00:00
ccurme
729637a347 docs(anthropic): document support for memory tool and context management (#33149) 2025-09-29 16:38:01 -04:00
Mason Daugherty
3325196be1 fix(langchain): handle gpt-5 model name in init_chat_model (#33148)
expand to match any `gpt-*` model to openai
2025-09-29 16:16:17 -04:00
Mason Daugherty
f402fdcea3 fix(langchain): add context_management to Anthropic chat model init (#33150) 2025-09-29 16:13:47 -04:00
ccurme
ca9217c02d release(anthropic): 0.3.21 (#33147) langchain-anthropic==0.3.21 2025-09-29 19:56:28 +00:00
ccurme
f9bae40475 feat(anthropic): support memory and context management features (#33146)
https://docs.claude.com/en/docs/build-with-claude/context-editing

---------

Co-authored-by: Mason Daugherty <mason@langchain.dev>
2025-09-29 15:42:38 -04:00
ccurme
839a18e112 fix(openai): remove __future__.annotations import from test files (#33144)
Breaks schema conversion in places.
2025-09-29 16:23:32 +00:00
Mohammad Mohtashim
33a6def762 fix(core): Support of 'reasoning' type in 'convert_to_openai_messages' (#33050) langchain==1.0.0a10 2025-09-29 09:17:05 -04:00
nhuang-lc
c456c8ae51 fix(langchain): fix response action for HITL (#33131)
Multiple improvements to HITL flow:

* On a `response` type resume, we should still append the tool call to
the last AIMessage (otherwise we have a ToolResult without a
corresponding ToolCall)
* When all interrupts have `response` types (so there's no pending tool
calls), we should jump back to the first node (instead of end) as we
enforced in the previous `post_model_hook_router`
* Added comments to `model_to_tools` router so clarify all of the
potential exit conditions

Additionally:
* Lockfile update to use latest LG alpha release
* Added test for `jump_to` behaving ephemerally, this was fixed in LG
but surfaced as a bug w/ `jump_to`.
* Bump version to v1.0.0a10 to prep for alpha release

---------

Co-authored-by: Sydney Runkle <sydneymarierunkle@gmail.com>
Co-authored-by: Sydney Runkle <54324534+sydney-runkle@users.noreply.github.com>
2025-09-29 13:08:18 +00:00
Eugene Yurtsev
54ea62050b chore(langchain_v1): move tool node to tools namespace (#33132)
* Move ToolNode to tools namespace
* Expose injected variable as well in tools namespace
* Update doc-strings throughout
2025-09-26 15:23:57 -04:00
Mason Daugherty
986302322f docs: more standardization (#33124) 2025-09-25 20:46:20 -04:00
Mason Daugherty
a5137b0a3e refactor(langchain): resolve pydantic deprecation warnings (#33125) 2025-09-25 17:33:18 -04:00
Mason Daugherty
5bea28393d docs: standardize .. code-block directive usage (#33122)
and fix typos
2025-09-25 16:49:56 -04:00
Mason Daugherty
c3fed20940 docs: correct ported over directives (#33121)
Match rest of repo
2025-09-25 15:54:54 -04:00
Mason Daugherty
6d418ba983 test(mistralai): add xfail for structured output test (#33119)
In rare cases (difficult to reproduce), Mistral's API fails to return
valid bodies, leading to failures from `PydanticToolsParser`
2025-09-25 13:05:31 -04:00
Mason Daugherty
12daba63ff test(openai): raise token limit for o1 test (#33118)
`test_o1[False-False]` was sometimes failing because the OpenAI o1 model
was hitting a token limit with only 100 tokens
2025-09-25 12:57:33 -04:00
Christophe Bornet
eaf8dce7c2 chore: bump ruff version to 0.13 (#33043)
Co-authored-by: Mason Daugherty <mason@langchain.dev>
2025-09-25 12:27:39 -04:00
Mason Daugherty
f82de1a8d7 chore: bump locks (#33114) 2025-09-25 01:46:01 -04:00
Mason Daugherty
e3efd1e891 test(text-splitters): capture beta warnings (#33113) 2025-09-25 01:30:20 -04:00
Mason Daugherty
d6769cf032 test(text-splitters): resolve pytest marker warning (#33112)
#33111
2025-09-25 01:29:42 -04:00
Mason Daugherty
7ab2e0dd3b test(core): resolve pytest marker warning (#33111)
Remove redundant/outdated `@pytest.mark.requires("jinja2")` decorator

Pytest marks (like `@pytest.mark.requires(...)`) applied directly to
fixtures have no effect and are deprecated.
2025-09-25 01:08:54 -04:00
Mason Daugherty
81319ad3f0 test(core): resolve pydantic_v1 deprecation warning (#33110)
Excluded pydantic_v1 module from import testing

Acceptable since this pydantic_v1 is explicitly deprecated. Testing its
importability at this stage serves little purpose since users should
migrate away from it.
2025-09-25 01:08:03 -04:00
Mason Daugherty
e3f3c13b75 refactor(core): use aadd_documents in vectorstores unit tests (#33109)
Don't use the deprecated `upsert()` and `aupsert()`

Instead use the recommended alternatives
2025-09-25 00:57:08 -04:00
Mason Daugherty
c30844fce4 fix(core): use version agnostic get_fields (#33108)
Resolves a warning
2025-09-25 00:54:29 -04:00
Mason Daugherty
c9eb3bdb2d test(core): use secure hash algorithm in indexing test to eliminate SHA-1 warning (#33107)
Finish work from #33101
2025-09-25 00:49:11 -04:00
Mason Daugherty
e97baeb9a6 test(core): suppress pydantic_v1 deprecation warnings during import tests (#33106)
We intentionally import these. Hide warnings to reduce testing noise.
2025-09-25 00:37:40 -04:00
Mason Daugherty
3a6046b157 test(core): don't use deprecated input_variables param in from_file (#33105)
finish #33104
2025-09-25 04:29:31 +00:00
Mason Daugherty
8fdc619f75 refactor(core): don't use deprecated input_variables param in from_file (#33104)
Missed awhile back; causes warnings during tests
2025-09-25 00:14:17 -04:00
Ali Ismail
729bfe8369 test(core): enhance stringify_value test coverage for nested structures (#33099)
## Summary
Adds test coverage for the `stringify_value` utility function to handle
complex nested data structures that weren't previously tested.

## Changes
- Added `test_stringify_value_nested_structures()` to `test_strings.py`
- Tests nested dictionaries within lists
- Tests mixed-type lists with various data types
- Verifies proper stringification of complex nested structures

## Why This Matters
- Fills a gap in test coverage for edge cases
- Ensures `stringify_value` handles complex data structures correctly  
- Improves confidence in string utility functions used throughout the
codebase
- Low risk addition that strengthens existing test suite

## Testing
```bash
uv run --group test pytest libs/core/tests/unit_tests/utils/test_strings.py::test_stringify_value_nested_structures -v
```

This test addition follows the project's testing patterns and adds
meaningful coverage without introducing any breaking changes.

---------

Co-authored-by: Mason Daugherty <mason@langchain.dev>
2025-09-25 00:04:47 -04:00
Mason Daugherty
9b624a79b2 test(core): suppress deprecation warnings in PipelinePromptTemplate (#33102)
We're intentionally testing this still so as not to regress. Reduce
warning noise.
2025-09-25 04:03:27 +00:00
Mason Daugherty
c60c5a91cb fix(core): use secure hash algorithm in indexing test to eliminate SHA-1 warning (#33101)
Use SHA-256 (collision-resistant) instead of the default SHA-1. No
functional changes to test behavior.
2025-09-25 00:02:11 -04:00
Mason Daugherty
d9e0c212e0 chore(infra): add tests to label mapping (#33103) 2025-09-25 00:01:53 -04:00
Sydney Runkle
f015526e42 release(langchain): v1.0.0a9 (#33098) langchain==1.0.0a9 2025-09-24 21:02:53 +00:00
Sydney Runkle
57d931532f fix(langchain): extra arg for anthropic caching, __end__ -> end for jump_to (#33097)
Also updating `jump_to` to use `end` instead of `__end__`
2025-09-24 17:00:40 -04:00
Mason Daugherty
50012d95e2 chore: update pull_request_target types, harden (#33096)
Enhance the pull request workflows by updating the `pull_request_target`
types and ensuring safety by avoiding checkout of the PR's head. Update
the action to use a specific commit from the archived repository.
2025-09-24 16:37:16 -04:00
Mason Daugherty
33f06875cb fix(langchain_v1): version equality check (#33095) 2025-09-24 16:27:55 -04:00
dependabot[bot]
e5730307e7 chore: bump actions/setup-node from 4 to 5 (#32952)
Bumps [actions/setup-node](https://github.com/actions/setup-node) from 4
to 5.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/setup-node/releases">actions/setup-node's
releases</a>.</em></p>
<blockquote>
<h2>v5.0.0</h2>
<h2>What's Changed</h2>
<h3>Breaking Changes</h3>
<ul>
<li>Enhance caching in setup-node with automatic package manager
detection by <a
href="https://github.com/priya-kinthali"><code>@​priya-kinthali</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/1348">actions/setup-node#1348</a></li>
</ul>
<p>This update, introduces automatic caching when a valid
<code>packageManager</code> field is present in your
<code>package.json</code>. This aims to improve workflow performance and
make dependency management more seamless.
To disable this automatic caching, set <code>package-manager-cache:
false</code></p>
<pre lang="yaml"><code>steps:
- uses: actions/checkout@v5
- uses: actions/setup-node@v5
  with:
    package-manager-cache: false
</code></pre>
<ul>
<li>Upgrade action to use node24 by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/setup-node/pull/1325">actions/setup-node#1325</a></li>
</ul>
<p>Make sure your runner is on version v2.327.1 or later to ensure
compatibility with this release. <a
href="https://github.com/actions/runner/releases/tag/v2.327.1">See
Release Notes</a></p>
<h3>Dependency Upgrades</h3>
<ul>
<li>Upgrade <code>@​octokit/request-error</code> and
<code>@​actions/github</code> by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1227">actions/setup-node#1227</a></li>
<li>Upgrade uuid from 9.0.1 to 11.1.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1273">actions/setup-node#1273</a></li>
<li>Upgrade undici from 5.28.5 to 5.29.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1295">actions/setup-node#1295</a></li>
<li>Upgrade form-data to bring in fix for critical vulnerability by <a
href="https://github.com/gowridurgad"><code>@​gowridurgad</code></a> in
<a
href="https://redirect.github.com/actions/setup-node/pull/1332">actions/setup-node#1332</a></li>
<li>Upgrade actions/checkout from 4 to 5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1345">actions/setup-node#1345</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/priya-kinthali"><code>@​priya-kinthali</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/1348">actions/setup-node#1348</a></li>
<li><a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/1325">actions/setup-node#1325</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-node/compare/v4...v5.0.0">https://github.com/actions/setup-node/compare/v4...v5.0.0</a></p>
<h2>v4.4.0</h2>
<h2>What's Changed</h2>
<h3>Bug fixes:</h3>
<ul>
<li>Make eslint-compact matcher compatible with Stylelint by <a
href="https://github.com/FloEdelmann"><code>@​FloEdelmann</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/98">actions/setup-node#98</a></li>
<li>Add support for indented eslint output by <a
href="https://github.com/fregante"><code>@​fregante</code></a> in <a
href="https://redirect.github.com/actions/setup-node/pull/1245">actions/setup-node#1245</a></li>
</ul>
<h3>Enhancement:</h3>
<ul>
<li>Support private mirrors by <a
href="https://github.com/marco-ippolito"><code>@​marco-ippolito</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/1240">actions/setup-node#1240</a></li>
</ul>
<h3>Dependency update:</h3>
<ul>
<li>Upgrade <code>@​action/cache</code> from 4.0.2 to 4.0.3 by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/1262">actions/setup-node#1262</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/FloEdelmann"><code>@​FloEdelmann</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/98">actions/setup-node#98</a></li>
<li><a href="https://github.com/fregante"><code>@​fregante</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/1245">actions/setup-node#1245</a></li>
<li><a
href="https://github.com/marco-ippolito"><code>@​marco-ippolito</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/1240">actions/setup-node#1240</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-node/compare/v4...v4.4.0">https://github.com/actions/setup-node/compare/v4...v4.4.0</a></p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="a0853c2454"><code>a0853c2</code></a>
Bump actions/checkout from 4 to 5 (<a
href="https://redirect.github.com/actions/setup-node/issues/1345">#1345</a>)</li>
<li><a
href="b7234cc9fe"><code>b7234cc</code></a>
Upgrade action to use node24 (<a
href="https://redirect.github.com/actions/setup-node/issues/1325">#1325</a>)</li>
<li><a
href="d7a11313b5"><code>d7a1131</code></a>
Enhance caching in setup-node with automatic package manager detection
(<a
href="https://redirect.github.com/actions/setup-node/issues/1348">#1348</a>)</li>
<li><a
href="5e2628c959"><code>5e2628c</code></a>
Bumps form-data (<a
href="https://redirect.github.com/actions/setup-node/issues/1332">#1332</a>)</li>
<li><a
href="65beceff8e"><code>65becef</code></a>
Bump undici from 5.28.5 to 5.29.0 (<a
href="https://redirect.github.com/actions/setup-node/issues/1295">#1295</a>)</li>
<li><a
href="7e24a656e1"><code>7e24a65</code></a>
Bump uuid from 9.0.1 to 11.1.0 (<a
href="https://redirect.github.com/actions/setup-node/issues/1273">#1273</a>)</li>
<li><a
href="08f58d1471"><code>08f58d1</code></a>
Bump <code>@​octokit/request-error</code> and
<code>@​actions/github</code> (<a
href="https://redirect.github.com/actions/setup-node/issues/1227">#1227</a>)</li>
<li>See full diff in <a
href="https://github.com/actions/setup-node/compare/v4...v5">compare
view</a></li>
</ul>
</details>
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2025-09-24 16:26:05 -04:00
Mason Daugherty
4783a9c18e style: update workflow name for version equality check (#33094) 2025-09-24 20:11:30 +00:00
Mason Daugherty
ee4d84de7c style(core): typo/docs lint pass (#33093) 2025-09-24 16:11:21 -04:00
Mason Daugherty
092dd5e174 chore: update link for monorepo structure (#33091) 2025-09-24 19:55:00 +00:00
Sydney Runkle
dd81e1c3fb release(langchain): 1.0.0a8 (#33090) langchain==1.0.0a8 2025-09-24 15:31:29 -04:00