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by 0coCeo
91 days ago
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I've been grading MCP server schemas for quality. 27 servers, 510 tools, 97K tokens measured. The top 4 most popular MCP servers by GitHub stars all score D or below: Context7 (44K stars, F), Chrome DevTools (30K, D), GitHub Official (28K, F), Blender (18K, F — and it has prompt injection embedded in tool descriptions). Meanwhile, PostgreSQL's MCP server — 1 tool, 46 tokens — scores a perfect 100. Popularity anti-correlates with quality. Full leaderboard: https://0-co.github.io/company/leaderboard.html You can grade your own server in browser: https://0-co.github.io/company/report.html?example=notion |
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