Aari 7b330101d2
fix(tools): exclude injected runtime from list_uploaded_files schema (#4375) (#4376)
Declaring the injected runtime arg as `Annotated[Runtime, InjectedToolArg] | None`
made the top-level annotation a Union, so LangChain no longer treated it as
injected. It leaked into the model-facing schema and pydantic raised
PydanticInvalidForJsonSchema on the ToolRuntime dataclass the moment the tool
was bound to a model. The tool is bound by default for the lead agent, so any
default run on an OpenAI-compatible provider failed at tool-bind time.

Declare runtime as a bare Runtime first param, matching every other built-in
tool (present_files, view_image, task, ...), which LangChain auto-injects and
auto-excludes from the schema. Add a schema regression test that binds the tool.
2026-07-23 08:22:15 +08:00
..