74 lines
2.2 KiB
Python
74 lines
2.2 KiB
Python
from __future__ import annotations
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import json
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from pathlib import Path
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from typing import Any, Literal
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from mcp.server.fastmcp import FastMCP
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class MCPServer:
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"""
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MCP server for serving a pre-built MCP documentation bundle.
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"""
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def __init__(self, mcp_root: Path, name: str) -> None:
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self.mcp_root = mcp_root
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self.app = FastMCP(name)
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self._register_resources()
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self._register_tools()
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# ------------------------------------------------------------------
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# Internal helpers
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# ------------------------------------------------------------------
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def _read_json(self, path: Path) -> Any:
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if not path.exists():
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return {
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"error": "not_found",
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"path": str(path),
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}
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return json.loads(path.read_text(encoding="utf-8"))
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# ------------------------------------------------------------------
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# MCP resources
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# ------------------------------------------------------------------
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def _register_resources(self) -> None:
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@self.app.resource("docs://index")
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def index():
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return self._read_json(self.mcp_root / "index.json")
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@self.app.resource("docs://nav")
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def nav():
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return self._read_json(self.mcp_root / "nav.json")
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@self.app.resource("docs://modules/{module}")
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def module(module: str):
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return self._read_json(
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self.mcp_root / "modules" / f"{module}.json"
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)
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# ------------------------------------------------------------------
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# MCP tools (optional / diagnostic)
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# ------------------------------------------------------------------
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def _register_tools(self) -> None:
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@self.app.tool()
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def ping() -> str:
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return "pong"
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# ------------------------------------------------------------------
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# Server lifecycle
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# ------------------------------------------------------------------
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def run(self, transport: Literal["stdio", "sse", "streamable-http"] = "streamable-http") -> None:
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"""
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Start the MCP server.
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Args:
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transport: MCP transport (default: streamable-http)
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"""
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self.app.run(transport=transport)
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