Forecall scores how well MCP tool descriptions let AI agents pick the right tool and call it correctly. Paste a tools/list to get a score out of 100 for each tool and what to fix: free, no sign-up. Run it in CI with npx forecall, keep every version in the dashboard, and soon measure real tool choice with Claude, GPT and Gemini. Built by Mirai Studio, Inc. in Tokyo. A community token: not a share of Forecall, with no rights to its products or revenue.