A developer shares 17 hard-learned lessons from building and debugging Model Context Protocol (MCP) servers. Key takeaways include handling diverse API key placements across different clients, always returning a non-empty response to avoid client hangs, and utilizing framework serializers for JSON construction to prevent parsing errors. The author also emphasizes setting explicit Content-Length headers for better client compatibility, especially with chunked encoding. AI
IMPACT Provides practical advice for developers working with specific AI-related protocols.
RANK_REASON Developer's personal lessons learned from using a protocol, not a new release or significant industry event.
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