Agent Skills Checker
Look for an Agent Skills index advertising the skills a site makes available.
Probes /.well-known/agent-skills.json. Anthropic documents a SKILL.md packaging format for Agent Skills, but this discovery path is a community convention rather than part of that documented format — the two should not be conflated.
This is one of the checks the AI Agent Readiness Checker scores under API, Auth, MCP & Skill Discovery, and it can also be run on its own for any URL.
Experimental · Based on: Anthropic — Agent Skills · RFC 8615 — Well-Known Uniform Resource Identifiers (URIs)
About this validation
Experimental / emerging conventionAnthropic documents a SKILL.md packaging format for Agent Skills, but the /.well-known/agent-skills.json discovery path this check probes is a community convention with no ratified specification -- the two should not be conflated.
- Protocol / standard:
- Vendor documentation:
- Rules reviewed:
- Nov 11, 2026
Standards and vendor-documented behavior can change. This reflects the source as last reviewed above, not a permanent guarantee.