Sydney Runkle 35b89b8b10 fix: shell tool middleware (#33589) ...

the fact that this was broken showcases that we need significantly
better test coverage, this is literally the most minimalistic usage of
this middleware there could be 😿

will document these two gotchas better for custom middleware

```py
from langchain.agents.middleware.shell_tool import ShellToolMiddleware
from langchain.agents import create_agent

agent = create_agent(model="openai:gpt-4",middleware = [ShellToolMiddleware()])
agent.invoke({"messages":[{"role": "user", "content": "hi"}]})
```

2025-10-17 16:48:30 -04:00

..

integration_tests

fix: shell tool middleware (#33589)

2025-10-17 16:48:30 -04:00

unit_tests

feat(langchain_v1): Python 3.14 support (#33560)

2025-10-17 15:10:01 -04:00

__init__.py

…