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Fix breaking change: restore output_schema=False compatibility (#1482)

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Jeremiah Lowin 2025-08-13 18:07:50 -04:00 • committed by GitHub
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28
docs/python-sdk/fastmcp-client-transports.mdx
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@ -7,7 +7,7 @@ sidebarTitle: transports
## Functions
### `infer_transport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L904" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `infer_transport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L903" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
infer_transport(transport: ClientTransport | FastMCP | FastMCP1Server | AnyUrl | Path | MCPConfig | dict[str, Any] | str) -> ClientTransport
@ -161,61 +161,61 @@ transports like Python, Node, Uvx, etc.
connect_session(self, **session_kwargs: Unpack[SessionKwargs]) -> AsyncIterator[ClientSession]
```
#### `connect` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L357" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `connect` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L356" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
connect(self, **session_kwargs: Unpack[SessionKwargs]) -> ClientSession | None
```
#### `disconnect` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L408" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `disconnect` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L407" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
disconnect(self)
```
#### `close` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L423" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `close` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L422" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
close(self)
```
### `PythonStdioTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L432" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `PythonStdioTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L431" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Transport for running Python scripts.
### `FastMCPStdioTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L478" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `FastMCPStdioTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L477" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Transport for running FastMCP servers using the FastMCP CLI.
### `NodeStdioTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L505" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `NodeStdioTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L504" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Transport for running Node.js scripts.
### `UvStdioTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L547" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `UvStdioTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L546" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Transport for running commands via the uv tool.
### `UvxStdioTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L604" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `UvxStdioTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L603" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Transport for running commands via the uvx tool.
### `NpxStdioTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L668" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `NpxStdioTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L667" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Transport for running commands via the npx tool.
### `FastMCPTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L730" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `FastMCPTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L729" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
In-memory transport for FastMCP servers.
@ -228,13 +228,13 @@ tests or scenarios where client and server run in the same runtime.
**Methods:**
#### `connect_session` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L749" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `connect_session` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L748" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
connect_session(self, **session_kwargs: Unpack[SessionKwargs]) -> AsyncIterator[ClientSession]
```
### `MCPConfigTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L784" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `MCPConfigTransport` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L783" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Transport for connecting to one or more MCP servers defined in an MCPConfig.
@ -287,7 +287,7 @@ async with client:
**Methods:**
#### `connect_session` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L856" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `connect_session` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/transports.py#L855" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
connect_session(self, **session_kwargs: Unpack[SessionKwargs]) -> AsyncIterator[ClientSession]

34
docs/python-sdk/fastmcp-tools-tool.mdx
View file

@ -7,7 +7,7 @@ sidebarTitle: tool
## Functions
### `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>
### `default_serializer` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L58" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
default_serializer(data: Any) -> str
@ -15,17 +15,17 @@ default_serializer(data: Any) -> str
## Classes
### `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>
### `ToolResult` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L62" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
**Methods:**
#### `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>
#### `to_mcp_result` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L93" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
to_mcp_result(self) -> list[ContentBlock] | tuple[list[ContentBlock], dict[str, Any]]
```
### `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>
### `Tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L101" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Internal tool registration info.
@ -33,34 +33,34 @@ Internal tool registration info.
**Methods:**
#### `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>
#### `enable` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L119" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
enable(self) -> None
```
#### `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>
#### `disable` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L127" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
disable(self) -> None
```
#### `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>
#### `to_mcp_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L135" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
to_mcp_tool(self, **overrides: Any) -> MCPTool
```
#### `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>
#### `from_function` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L160" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
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
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 | Literal[False] = NotSet, serializer: Callable[[Any], str] | None = None, meta: dict[str, Any] | None = None, enabled: bool | None = None) -> FunctionTool
```
Create a Tool from a function.
#### `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>
#### `run` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L188" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
run(self, arguments: dict[str, Any]) -> ToolResult
@ -75,26 +75,26 @@ implemented by subclasses.
(list of ContentBlocks, dict of structured output).
#### `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>
#### `from_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L201" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
from_tool(cls, tool: Tool) -> TransformedTool
```
### `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>
### `FunctionTool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L235" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
**Methods:**
#### `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>
#### `from_function` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L239" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
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
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 | Literal[False] = NotSet, serializer: Callable[[Any], str] | None = None, meta: dict[str, Any] | None = None, enabled: bool | None = None) -> FunctionTool
```
Create a Tool from a function.
#### `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>
#### `run` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L297" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
run(self, arguments: dict[str, Any]) -> ToolResult
@ -103,11 +103,11 @@ run(self, arguments: dict[str, Any]) -> ToolResult
Run the tool with arguments.
### `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>
### `ParsedFunction` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L343" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
**Methods:**
#### `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>
#### `from_function` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool.py#L351" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
from_function(cls, fn: Callable[..., Any], exclude_args: list[str] | None = None, validate: bool = True, wrap_non_object_output_schema: bool = True) -> ParsedFunction

24
docs/python-sdk/fastmcp-tools-tool_transform.mdx
View file

@ -7,7 +7,7 @@ sidebarTitle: tool_transform
## Functions
### `forward` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L35" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `forward` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L37" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
forward(**kwargs) -> ToolResult
@ -36,7 +36,7 @@ tool has args `a` and `b`, and an `transform_args` was provided that maps `x` to
- `TypeError`: If provided arguments don't match the transformed schema.
### `forward_raw` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L65" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `forward_raw` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L67" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
forward_raw(**kwargs) -> ToolResult
@ -62,7 +62,7 @@ y=2)` will call the parent tool with `x=1` and `y=2`.
- `RuntimeError`: If called outside a transformed tool context.
### `apply_transformations_to_tools` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L904" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `apply_transformations_to_tools` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L915" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
apply_transformations_to_tools(tools: dict[str, Tool], transformations: dict[str, ToolTransformConfig]) -> dict[str, Tool]
@ -75,7 +75,7 @@ are left unchanged.
## Classes
### `ArgTransform` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L92" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ArgTransform` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L94" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Configuration for transforming a parent tool's argument.
@ -137,7 +137,7 @@ ArgTransform(name="new_name", description="New desc", default=None, type=int)
```
### `ArgTransformConfig` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L206" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ArgTransformConfig` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L208" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A model for requesting a single argument transform.
@ -145,7 +145,7 @@ A model for requesting a single argument transform.
**Methods:**
#### `to_arg_transform` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L224" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `to_arg_transform` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L226" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
to_arg_transform(self) -> ArgTransform
@ -154,7 +154,7 @@ to_arg_transform(self) -> ArgTransform
Convert the argument transform to a FastMCP argument transform.
### `TransformedTool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L230" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `TransformedTool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L232" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A tool that is transformed from another tool.
@ -171,7 +171,7 @@ inherited from the parent tool but can be overridden or disabled.
**Methods:**
#### `run` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L257" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `run` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L259" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
run(self, arguments: dict[str, Any]) -> ToolResult
@ -190,10 +190,10 @@ functions.
- ToolResult object containing content and optional structured output.
#### `from_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L362" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `from_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L364" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
from_tool(cls, tool: Tool, name: str | None = None, title: str | None | NotSetT = NotSet, description: str | None | NotSetT = NotSet, tags: set[str] | None = None, transform_fn: Callable[..., Any] | None = None, transform_args: dict[str, ArgTransform] | None = None, annotations: ToolAnnotations | None | NotSetT = NotSet, output_schema: dict[str, Any] | None | NotSetT = NotSet, serializer: Callable[[Any], str] | None | NotSetT = NotSet, meta: dict[str, Any] | None | NotSetT = NotSet, enabled: bool | None = None) -> TransformedTool
from_tool(cls, tool: Tool, name: str | None = None, title: str | None | NotSetT = NotSet, description: str | None | NotSetT = NotSet, tags: set[str] | None = None, transform_fn: Callable[..., Any] | None = None, transform_args: dict[str, ArgTransform] | None = None, annotations: ToolAnnotations | None | NotSetT = NotSet, output_schema: dict[str, Any] | None | NotSetT | Literal[False] = NotSet, serializer: Callable[[Any], str] | None | NotSetT = NotSet, meta: dict[str, Any] | None | NotSetT = NotSet, enabled: bool | None = None) -> TransformedTool
```
Create a transformed tool from a parent tool.
@ -272,7 +272,7 @@ async def custom_output(**kwargs) -> ToolResult:
```
### `ToolTransformConfig` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L858" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ToolTransformConfig` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L869" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Provides a way to transform a tool.
@ -280,7 +280,7 @@ Provides a way to transform a tool.
**Methods:**
#### `apply` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L890" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `apply` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L901" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
apply(self, tool: Tool) -> TransformedTool