Stata MCP Server

# MCP Transport Fix - Separate Server Instances ## Problem When sharing a single MCP server instance between SSE and HTTP transports: 1. Requests come through `/mcp-streamable` (HTTP transport) 2. Tool executes using `mcp.server.request_context.session` 3. Session is from SSE transport (managed by fastapi_mcp) 4. Notifications sent via `session.send_log_message()` go to SSE transport 5. Claude Code listening on HTTP transport never receives them ## Solution Create **separate MCP server instances** for each transport: ```python # SSE Transport (via fastapi_mcp) mcp_sse = FastApiMCP(app, ...) # Manages SSE at /mcp # HTTP Transport (pure MCP SDK) from mcp.server import Server http_server = Server("Stata MCP Server - HTTP") # Register tools on HTTP server @http_server.call_tool() async def stata_run_file_http(name: str, arguments: dict): # Tool implementation pass # Create HTTP session manager with dedicated server http_session_manager = StreamableHTTPSessionManager( app=http_server, # Uses its own server, not shared ... ) ``` This ensures: - HTTP requests → HTTP server → HTTP sessions → notifications via HTTP - SSE requests → SSE server → SSE sessions → notifications via SSE No cross-contamination!