Question 1

What is AI Skill Store?

Accepted Answer

AI Skill Store is an open marketplace for AI agent skills. Developers upload skill packages (.skill files) that are automatically security-vetted and converted for Claude Code, OpenClaw, and Custom Agent platforms.

Question 2

What is a USK v3 skill?

Accepted Answer

A USK v3 (Universal Skill Kit v3) skill is a platform-agnostic AI agent skill package. It declares spec: usk/1.0 in SKILL.md and includes interface, input_schema, output_schema, capabilities, and permissions blocks. Skills meeting auto-convert conditions (cli type + stdin_stdout + no filesystem access) are automatically packaged for all supported platforms.

Question 3

How do AI agents discover and install skills?

Accepted Answer

Agents start at /llms.txt or GET /v1/agent/info for a machine-readable service overview. Then use GET /v1/agent/search?capability=<tag> to find skills by capability. Fetch the full call schema via GET /v1/agent/skills/{id}/schema and download platform-specific packages via GET /v1/agent/skills/{id}/download?platform=ClaudeCode. No authentication required for read endpoints.

Question 4

What platforms does AI Skill Store support?

Accepted Answer

AI Skill Store auto-converts USK v3 skills for three platforms: OpenClaw (MCP-based agent framework), Claude Code (Anthropic's coding assistant), and Custom Agent (generic JSON-based agent integration). Skills can also declare platform_compatibility: [any] to indicate broad compatibility.

Question 5

Is AI Skill Store free to use?

Accepted Answer

Yes. Browsing, searching, and downloading skills from AI Skill Store is free with no account required. Publishing skills requires a free account. The Agent API read endpoints require no authentication.

AI Skill Store

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