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74eb8a0645Co-authored-by: marvin-context-protocol[bot] <225465937+marvin-context-protocol[bot]@users.noreply.github.com>
91 lines
3.4 KiB
Text
91 lines
3.4 KiB
Text
---
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title: tool_injection
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sidebarTitle: tool_injection
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---
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# `fastmcp.server.middleware.tool_injection`
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A middleware for injecting tools into the MCP server context.
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## Functions
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### `list_prompts` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/tool_injection.py#L54" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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list_prompts(context: Context) -> list[Prompt]
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```
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List prompts available on the server.
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### `get_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/tool_injection.py#L64" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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get_prompt(context: Context, name: Annotated[str, 'The name of the prompt to render.'], arguments: Annotated[dict[str, Any] | None, 'The arguments to pass to the prompt.'] = None) -> mcp.types.GetPromptResult
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```
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Render a prompt available on the server.
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### `list_resources` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/tool_injection.py#L88" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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list_resources(context: Context) -> list[mcp.types.Resource]
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```
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List resources available on the server.
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### `read_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/tool_injection.py#L98" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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read_resource(context: Context, uri: Annotated[AnyUrl | str, 'The URI of the resource to read.']) -> ResourceResult
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```
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Read a resource available on the server.
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## Classes
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### `ToolInjectionMiddleware` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/tool_injection.py#L21" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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A middleware for injecting tools into the context.
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**Methods:**
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#### `on_list_tools` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/tool_injection.py#L32" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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on_list_tools(self, context: MiddlewareContext[mcp.types.ListToolsRequest], call_next: CallNext[mcp.types.ListToolsRequest, Sequence[Tool]]) -> Sequence[Tool]
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```
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Inject tools into the response.
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#### `on_call_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/tool_injection.py#L41" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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on_call_tool(self, context: MiddlewareContext[mcp.types.CallToolRequestParams], call_next: CallNext[mcp.types.CallToolRequestParams, ToolResult]) -> ToolResult
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```
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Intercept tool calls to injected tools.
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### `PromptToolMiddleware` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/tool_injection.py#L80" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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A middleware for injecting prompts as tools into the context.
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### `ResourceToolMiddleware` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/tool_injection.py#L111" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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A middleware for injecting resources as tools into the context.
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