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7921 Commits

Author SHA1 Message Date
Sydney Runkle
0c8cbfb7de chore(langchain_v1): switch order of params in ToolRuntime (#33518) 
To match `Runtime`
 2025-10-16 12:09:05 +00:00
Sydney Runkle
89c3428d85 feat(langchain_v1): injected runtime (#33500) 
Goal here is 2 fold

1. Improved devx for injecting args into tools
2. Support runtime injection for Python 3.10 async

One consequence of this PR is that `ToolNode` now expects `config`
available with `runtime`, which only happens in LangGraph execution
contexts. Hence the config patch for tests.

Are we ok reserving `tool_runtime`?

before, eek:
```py
from langchain.agents import create_agent
from langchain.tools import tool, InjectedState, InjectedStore
from langgraph.runtime import get_runtime
from typing_extensions import Annotated
from langgraph.store.base import BaseStore

@tool
def do_something(
    arg: int,
    state: Annotated[dict, InjectedState],
    store: Annotated[BaseStore, InjectedStore],
) -> None:
    """does something."""
    print(state)
    print(store)
    print(get_runtime().context)
    ...
```

after, woo!
```py
from langchain.agents import create_agent
from langchain.tools import tool, ToolRuntime

@tool
def do_something_better(
    arg: int,
    tool_runtime: ToolRuntime,
) -> None:
    """does something better."""
    print(tool_runtime.state)
    print(tool_runtime.store)
    print(tool_runtime.context)
    ...
```

```python
@dataclass
class ToolRuntime(InjectedToolArg, Generic[StateT, ContextT]):
    state: StateT
    context: ContextT
    config: RunnableConfig
    tool_call_id: str
    stream_writer: StreamWriter
    context: ContextT
    store: BaseStore | None
 2025-10-16 07:41:09 -04:00
Mason Daugherty
707e96c541 style: more sweeping refs work (#33513) 2025-10-15 23:33:39 -04:00
Mason Daugherty
26e0a00c4c style: more work for refs (#33508) 
Largely:
- Remove explicit `"Default is x"` since new refs show default inferred
from sig
- Inline code (useful for eventual parsing)
- Fix code block rendering (indentations)
 2025-10-15 18:46:55 -04:00
Eugene Yurtsev
d0f8f00e7e release(anthropic): 1.0.0a5 (#33507) 
Release anthropic
 2025-10-15 21:31:52 +00:00
Eugene Yurtsev
a39132787c feat(anthropic): add async implementation to middleware (#33506) 
Add async implementation to middleware
 2025-10-15 17:05:39 -04:00
Sydney Runkle
296994ebf0 release(langchain_v1): 1.0.0a15 (#33505) 2025-10-15 20:48:18 +00:00
ccurme
b5b31eec88 feat(core): include original block type in server tool results for google-genai (#33502) 2025-10-15 16:26:54 -04:00
Sydney Runkle
8f6851c349 fix(langchain_v1): keep state to relevant middlewares for tool/model call limits (#33493) 
The one risk point that I can see here is that model + tool call
counting now occurs in the `after_model` hook which introduces order
dependency (what if you have HITL execute before this hook and we jump
early to `model`, for example).

This is something users can work around at the moment and we can
document. We could also introduce a priority concept to middleware.
 2025-10-15 14:24:59 -04:00
Nuno Campos
0788461abd feat(openai): Add openai moderation middleware (#33492) 2025-10-15 13:59:49 -04:00
ccurme
3bfd1f6d8a release(core): 1.0.0rc1 (#33497) 2025-10-15 13:02:35 -04:00
Mason Daugherty
d83c3a12bf chore(core): delete BaseMemory, move to langchain-classic (#33373) 2025-10-15 12:55:23 -04:00
Mason Daugherty
79200cf3c2 docs: update package READMEs (#33488) 2025-10-15 10:49:35 -04:00
ccurme
bcb6789888 fix(anthropic): set langgraph-prebuilt dep explicitly (#33495) 2025-10-15 14:44:37 +00:00
ccurme
89b7933ef1 feat(standard-tests): parametrize tool calling test (#33496) 2025-10-15 14:43:09 +00:00
ccurme
4da5a8081f fix(core): propagate extras when aggregating tool calls in v1 content (#33494) 2025-10-15 10:38:16 -04:00
Mason Daugherty
53e9f00804 chore(core): delete items marked for removal in schemas.py (#33375) 2025-10-15 09:56:27 -04:00
Chenyang Li
6e25e185f6 fix(docs): Fix several typos and grammar (#33487) 
Just typo changes

Co-authored-by: Mason Daugherty <mason@langchain.dev>
 2025-10-14 20:04:14 -04:00
Mason Daugherty
68ceeb64f6 chore(core): delete function_calling.py utils marked for removal (#33376) 2025-10-14 16:13:19 -04:00
Mason Daugherty
edae976b81 chore(core): delete pydantic_v1/ (#33374) 2025-10-14 16:08:24 -04:00
ccurme
9f4366bc9d feat(mistralai): support reasoning feature and v1 content (#33485) 
Not yet supported: server-side tool calls
 2025-10-14 15:19:44 -04:00
Eugene Yurtsev
99e0a60aab chore(langchain_v1): remove invocation request (#33482) 
Remove ToolNode primitives from langchain
 2025-10-14 15:07:30 -04:00
Eugene Yurtsev
d38729fbac feat(langchain_v1): add async implementations to wrap_model_call (#33467) 
Add async implementations to wrap_model_call for prebuilt middleware
 2025-10-14 17:39:38 +00:00
gsmini
ff0d21cfd5 fix(langchain_v1): can not import "wrap_tool_call" from agents.… (#33472) 
fix can not import `wrap_tool_call` from ` langchain.agents.middleware
import `
```python

from langchain.agents import create_agent
from langchain.agents.middleware import wrap_tool_call # here !
from langchain_core.messages import ToolMessage

@wrap_tool_call
def handle_tool_errors(request, handler):
    """Handle tool execution errors with custom messages."""
    try:
        return handler(request)
    except Exception as e:
        # Return a custom error message to the model
        return ToolMessage(
            content=f"Tool error: Please check your input and try again. ({str(e)})",
            tool_call_id=request.tool_call["id"]
        )

agent = create_agent(
    model="openai:gpt-4o",
    tools=[search, calculate],
    middleware=[handle_tool_errors]
)
```
> example code from:
https://docs.langchain.com/oss/python/langchain/agents#tool-error-handling
 2025-10-14 13:39:25 -04:00
Eugene Yurtsev
9140a7cb86 feat(langchain_v1): add override to model request and tool call request (#33465) 
Add override to model request and tool call request
 2025-10-14 10:31:46 -04:00
ccurme
41fe18bc80 chore(groq): fix integration tests (#33478) 
- add missing cassette
- update streaming metadata test for v1
 2025-10-14 14:16:34 +00:00
Mason Daugherty
9105573cb3 docs: create_agent style and clarify system_prompt (#33470) 2025-10-14 09:56:54 -04:00
Sydney Runkle
fff87e95d1 fix(langchain): rename PlanningMiddleware to TodoListMiddleware (#33476) 2025-10-14 09:06:06 -04:00
ccurme
9beb29a34c chore(mistralai): delete redundant tests (#33468) 2025-10-13 21:28:51 +00:00
ChoYongHo | 조용호
ca00f5aed9 fix(langchain_v1): export ModelResponse from agents.middleware (#33453) (#33454) 
## Description

  Fixes #33453

`ModelResponse` was defined in `types.py` and included in its `__all__`
list, but was not exported from the middleware package's `__init__.py`.
This caused `ImportError` when attempting to import it directly
from `langchain.agents.middleware`, despite being documented as a public
export.

  ## Changes

- Added `ModelResponse` to the import statement in
`langchain/agents/middleware/__init__.py`
- Added `ModelResponse` to the `__all__` list in
`langchain/agents/middleware/__init__.py`
- Added comprehensive unit tests in `test_imports.py` to verify the
import works correctly

  ## Issue

  The original issue reported that the following import failed:

  ```python
  from langchain.agents.middleware import ModelResponse
# ImportError: cannot import name 'ModelResponse' from
'langchain.agents.middleware'

  The workaround was to import from the submodule:

from langchain.agents.middleware.types import ModelResponse # Workaround

  Solution

  After this fix, ModelResponse can be imported directly as documented:

  from langchain.agents.middleware import ModelResponse  # Now works!

  Testing

- ✅ Added 3 unit tests in
tests/unit_tests/agents/middleware/test_imports.py
  - ✅ All tests pass locally: make format, make lint, make test
  - ✅ Verified ModelResponse is properly exported and importable
  - ✅ Verified ModelResponse appears in __all__ list

  Dependencies

  None. This is a simple export fix with no new dependencies.

---------

Co-authored-by: Eugene Yurtsev <eugene@langchain.dev>
Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>
 2025-10-13 16:02:30 -04:00
Eugene Yurtsev
1cf851e054 chore(langchain_v1,anthropic): migrate anthropic middleware to langchain_anthropic (#33463) 
Migrate prompt caching implementation into langchain_anthropic.middleware
 2025-10-13 15:12:54 -04:00
ccurme
961f965f0c feat(groq): support built-in tools in message content (#33459) 2025-10-13 15:06:01 -04:00
Sydney Runkle
760fc3bc12 chore(langchain_v1): use args for HITL (#33442) 2025-10-11 07:12:46 -04:00
Eugene Yurtsev
e3fc7d8aa6 chore(langchain_v1): bump release version (#33440) 
bump v1 for release
 2025-10-10 21:51:00 -04:00
Eugene Yurtsev
2b3b209e40 chore(langchain_v1): improve error message (#33433) 
Make error messages actionable for sync / async decorators
 2025-10-10 17:18:20 -04:00
ccurme
78903ac285 fix(openai): conditionally skip test (#33431) 2025-10-10 21:04:18 +00:00
ccurme
f361acc11c chore(anthropic): speed up integration tests (#33430) 2025-10-10 20:57:44 +00:00
Eugene Yurtsev
ed185c0026 chore(langchain_v1): remove langchain_text_splitters from test group (#33425) 
Remove langchain_text_splitters from test group in langchain_v1
 2025-10-10 16:56:14 -04:00
Eugene Yurtsev
6dc34beb71 chore(langchain_v1): stricter handling of sync vs. async for wrap_model_call and wrap_tool_call (#33429) 
Wrap model call and wrap tool call
 2025-10-10 16:54:42 -04:00
Eugene Yurtsev
c2205f88e6 chore(langchain_v1): further namespace clean up (#33428) 
Reduce exposed namespace for now
 2025-10-10 20:48:24 +00:00
ccurme
abdbe185c5 release(anthropic): 1.0.0a4 (#33427) 2025-10-10 16:39:58 -04:00
ccurme
c1b816cb7e fix(fireworks): parse standard blocks in input (#33426) 2025-10-10 16:18:37 -04:00
Eugene Yurtsev
0559558715 feat(langchain_v1): add async implementation for wrap_tool_call (#33420) 
Add async implementation. No automatic delegation to sync at the moment.
 2025-10-10 15:07:19 -04:00
Eugene Yurtsev
75965474fc chore(langchain_v1): tool error exceptions (#33424) 
Tool error exceptions
 2025-10-10 15:06:40 -04:00
Mason Daugherty
5dc014fdf4 chore(core): delete get_relevant_documents (#33378) 
Co-authored-by: Chester Curme <chester.curme@gmail.com>
 2025-10-10 14:51:54 -04:00
Mason Daugherty
291a9fcea1 style: llm -> model (#33423) 2025-10-10 13:19:13 -04:00
Christophe Bornet
dd994b9d7f chore(langchain): remove arg types from docstrings (#33413) 
Co-authored-by: Mason Daugherty <mason@langchain.dev>
 2025-10-10 11:51:00 -04:00
Christophe Bornet
83901b30e3 chore(text-splitters): remove arg types from docstrings (#33406) 
Co-authored-by: Mason Daugherty <mason@langchain.dev>
 2025-10-10 11:37:53 -04:00
ccurme
af1da28459 feat(langchain_v1): expand message exports (#33419) 2025-10-10 15:14:51 +00:00
Mason Daugherty
ed2ee4e8cc style: fix tables, capitalization (#33417) 2025-10-10 11:09:59 -04:00