Function call_tool

tests/interaction/lowlevel/test_roots.py:31–35

(ctx: ServerRequestContext, params: types.CallToolRequestParams)

        return types.ListToolsResult(tools=[types.Tool(name="show_roots", input_schema={"type": "object"})])

    async def call_tool(ctx: ServerRequestContext, params: types.CallToolRequestParams) -> CallToolResult:
        assert params.name == "show_roots"
        result = await ctx.session.list_roots()  # pyright: ignore[reportDeprecated]
        lines = [f"{root.uri} name={root.name}" for root in result.roots]
        return CallToolResult(content=[TextContent(text="\n".join(lines))])

    server = Server("rooted", on_list_tools=list_tools, on_call_tool=call_tool)