wehub-resource-sync
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37 lines
1.3 KiB
Python
37 lines
1.3 KiB
Python
"""Roots primitive (lowlevel API): the same server→client round-trip, hand-built."""
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from typing import Any
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import mcp_types as types
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from mcp.server.context import ServerRequestContext
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from mcp.server.lowlevel import Server
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from stories._hosting import run_server_from_args
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def build_server() -> Server[Any]:
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async def list_tools(
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ctx: ServerRequestContext[Any], params: types.PaginatedRequestParams | None
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) -> types.ListToolsResult:
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return types.ListToolsResult(
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tools=[
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types.Tool(
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name="show_roots",
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description="Return the filesystem roots the client has exposed.",
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input_schema={"type": "object"},
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),
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]
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)
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async def call_tool(ctx: ServerRequestContext[Any], params: types.CallToolRequestParams) -> types.CallToolResult:
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assert params.name == "show_roots"
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result = await ctx.session.list_roots() # pyright: ignore[reportDeprecated]
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lines = [f"{root.uri} ({root.name or 'unnamed'})" for root in result.roots]
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return types.CallToolResult(content=[types.TextContent(text="\n".join(lines))])
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return Server("roots-example", on_list_tools=list_tools, on_call_tool=call_tool)
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if __name__ == "__main__":
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run_server_from_args(build_server)
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