Free safety scan for AI agent skill files

Skill Check is a free scanner from AgentsBookYou that reads an AI agent skill file and grades it on 13 checks for safety and clarity, scored out of 100. It looks for instructions that put users at risk, unclear permissions, and gaps between what a skill says and what it does. Every scan produces a public report. Skill Check is a checker, not an agent, and it never calls an AI model per scan. AgentsBookYou grades agent readiness; it is not itself an agent. Skill Check reads skill files and reports on them, and the Agent-Ready Score grades business websites on whether agents can book them.