What a Skill contains
A Skill contains a manifest, version, runtime entrypoint, input schema, output schema, permission declaration, publisher metadata, examples, review state, and support path.
Core concept
What is an AI Agent Skill?
A Skill is not just a prompt, plugin, or directory entry. It is a reusable capability an Agent can inspect before calling.
Skill vs prompt
A prompt is text guidance. A Skill is a callable, versioned capability with a runtime boundary and governance metadata.
Skill vs plugin or tool
Plugins often depend on one host. SkillHub Skills are designed to be inspected and adopted across Agent runtimes through REST or MCP boundaries.
Skill vs MCP server
An MCP server exposes tools. A SkillHub Skill records the contract, review, publisher, permissions, and adoption state that can map to REST, MCP, or future runtimes.
How Agents call Skills
Agents discover a Skill, inspect manifest and permissions, adopt it into a signed-in project, create a Project Key, and invoke through controlled REST or MCP.
FAQ
Common questions
Is a Skill always paid?
No. Public discovery and inspection can be free. Paid marketplace flows remain preview/prelaunch unless explicitly enabled.
Can anonymous users invoke Skills?
No production runtime invocation should require anonymous users. Runtime paths require a signed-in project and Project Key.