mirror of
https://github.com/PrefectHQ/fastmcp.git
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114 lines
4.8 KiB
Text
114 lines
4.8 KiB
Text
---
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title: tool
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sidebarTitle: tool
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---
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# `fastmcp.tools.tool`
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## Functions
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### `default_serializer` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L55" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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default_serializer(data: Any) -> str
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```
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## Classes
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### `ToolResult` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L59" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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**Methods:**
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#### `to_mcp_result` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L90" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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to_mcp_result(self) -> list[ContentBlock] | tuple[list[ContentBlock], dict[str, Any]]
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```
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### `Tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L98" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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Internal tool registration info.
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**Methods:**
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#### `enable` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L116" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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enable(self) -> None
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```
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#### `disable` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L124" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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disable(self) -> None
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```
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#### `to_mcp_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L132" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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to_mcp_tool(self, **overrides: Any) -> MCPTool
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```
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#### `from_function` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L157" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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from_function(fn: Callable[..., Any], name: str | None = None, title: str | None = None, description: str | None = None, tags: set[str] | None = None, annotations: ToolAnnotations | None = None, exclude_args: list[str] | None = None, output_schema: dict[str, Any] | None | NotSetT = NotSet, serializer: Callable[[Any], str] | None = None, meta: dict[str, Any] | None = None, enabled: bool | None = None) -> FunctionTool
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```
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Create a Tool from a function.
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#### `run` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L185" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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run(self, arguments: dict[str, Any]) -> ToolResult
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```
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Run the tool with arguments.
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This method is not implemented in the base Tool class and must be
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implemented by subclasses.
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`run()` can EITHER return a list of ContentBlocks, or a tuple of
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(list of ContentBlocks, dict of structured output).
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#### `from_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L198" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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from_tool(cls, tool: Tool) -> TransformedTool
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```
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### `FunctionTool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L232" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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**Methods:**
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#### `from_function` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L236" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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from_function(cls, fn: Callable[..., Any], name: str | None = None, title: str | None = None, description: str | None = None, tags: set[str] | None = None, annotations: ToolAnnotations | None = None, exclude_args: list[str] | None = None, output_schema: dict[str, Any] | None | NotSetT = NotSet, serializer: Callable[[Any], str] | None = None, meta: dict[str, Any] | None = None, enabled: bool | None = None) -> FunctionTool
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```
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Create a Tool from a function.
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#### `run` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L284" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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run(self, arguments: dict[str, Any]) -> ToolResult
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```
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Run the tool with arguments.
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### `ParsedFunction` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L330" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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**Methods:**
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#### `from_function` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L338" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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from_function(cls, fn: Callable[..., Any], exclude_args: list[str] | None = None, validate: bool = True, wrap_non_object_output_schema: bool = True) -> ParsedFunction
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```
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