{"jsonrpc": "2.0", "id": "server-error", "error": {"code": -32600, "message": "Not Acceptable: /mcp requires Accept: application/json, text/event-stream (both types are required for MCP streamable-http). Example: curl -X POST https://intel.twzrd.xyz/mcp -H 'Accept: application/json, text/event-stream' -H 'Content-Type: application/json' -d '{\"jsonrpc\":\"2.0\",\"method\":\"initialize\",\"id\":1,\"params\":{\"protocolVersion\":\"2024-11-05\",\"capabilities\":{},\"clientInfo\":{\"name\":\"agent\",\"version\":\"0\"}}}' -- see https://intel.twzrd.xyz/llms.txt for full integration guide."}}