The Model Context Protocol (MCP) server, used by AI clients like Claude Desktop and Cursor, can appear disconnected due to several common issues. These problems often stem from how the AI client launches the server as a subprocess, rather than a remote service. Key causes include incorrect path resolution for commands and scripts, stdout pollution from print statements or logs that interfere with JSON-RPC messages, missing environment variables required by the server, and mismatches in the communication transport protocol. AI
IMPACT Provides essential debugging steps for developers using AI clients that integrate with local MCP servers.
RANK_REASON Troubleshooting guide for a specific technical issue with an AI development tool.
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