Agent Skills Kit
An SDK and command-line surface for authoring, validating, evaluating and syncing skills for Codex and other AI coding agents, currently being split into a separate Skills SDK and a Skills Foundry.
Agent Skills Kit is described as a transitional repository being separated into two products: a Skills Foundry that holds permitted skills and plugins awaiting SDK processing, and a Skills SDK that owns the agent-facing workflow for creating, updating, checking and installing skills, including the required registry and runtime adapters.
The repository's command-line tool is the current transitional command surface. It bootstraps and diagnoses the repo-local tooling, and reports a catalog parity marker tracking the count of canonical skills. Generated runtime projections live under one directory, while authored guidance is tracked separately.
It requires Git, Bash and either uv or Python 3.12 or newer, and is Apache-2.0 licensed.