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Add output schema to tool decorator

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This commit is contained in:
Jeremiah Lowin 2025-06-20 18:58:23 -04:00
commit cc69e56758
3 changed files with 120 additions and 0 deletions
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6
src/fastmcp/server/server.py
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@ -768,6 +768,7 @@ class FastMCP(Generic[LifespanResultT]):
name: str | None = None,
description: str | None = None,
tags: set[str] | None = None,
output_schema: dict[str, Any] | None = None,
annotations: ToolAnnotations | dict[str, Any] | None = None,
exclude_args: list[str] | None = None,
enabled: bool | None = None,
@ -781,6 +782,7 @@ class FastMCP(Generic[LifespanResultT]):
name: str | None = None,
description: str | None = None,
tags: set[str] | None = None,
output_schema: dict[str, Any] | None = None,
annotations: ToolAnnotations | dict[str, Any] | None = None,
exclude_args: list[str] | None = None,
enabled: bool | None = None,
@ -793,6 +795,7 @@ class FastMCP(Generic[LifespanResultT]):
name: str | None = None,
description: str | None = None,
tags: set[str] | None = None,
output_schema: dict[str, Any] | None = None,
annotations: ToolAnnotations | dict[str, Any] | None = None,
exclude_args: list[str] | None = None,
enabled: bool | None = None,
@ -815,6 +818,7 @@ class FastMCP(Generic[LifespanResultT]):
name: Optional name for the tool (keyword-only, alternative to name_or_fn)
description: Optional description of what the tool does
tags: Optional set of tags for categorizing the tool
output_schema: Optional JSON schema for the tool's output
annotations: Optional annotations about the tool's behavior (e.g. {"is_async": True})
exclude_args: Optional list of argument names to exclude from the tool schema
enabled: Optional boolean to enable or disable the tool
@ -867,6 +871,7 @@ class FastMCP(Generic[LifespanResultT]):
name=tool_name,
description=description,
tags=tags,
output_schema=output_schema,
annotations=annotations,
exclude_args=exclude_args,
serializer=self._tool_serializer,
@ -897,6 +902,7 @@ class FastMCP(Generic[LifespanResultT]):
name=tool_name,
description=description,
tags=tags,
output_schema=output_schema,
annotations=annotations,
exclude_args=exclude_args,
enabled=enabled,