I built a Lighthouse for MCP tools — it scores...

The problem AI agents choose between tools based on one thing: the quality of their descriptions. Research shows 97% of MCP tool descriptions have quality defects (arXiv 2602.14878), and optimized tools get selected 3.6x more often (arXiv 2602.18914). Most MCP developers don't know their tool definitions are broken until an agent silently ignores them. What I built ToolRank scores MCP tool definitions across 4 dimensions: Findability (25pts) — Can agents discover your tool? Clarity (35pts) — Can