AAS Core
AAS Core is a local control plane and catalog of more than 2,400 installable SKILL.md playbooks that lets Codex or Claude search, inspect and select skills for a project, then preview a plan before anything actually changes.
A read-only tool validates the chosen skill IDs and structure entirely in memory, and either the agent or a companion CLI can persist the resulting manifest, validate it again, and write an immutable plan file for a person to review; a manifest is capped at 128 skills. The project states plainly that Core does not rank or recommend skills on its own, and that applying a plan and recovering from it remain experimental, outside its supported preview path.
A companion browser-based Workbench reviews stack and plan artifacts held in local browser memory without touching the filesystem. It describes itself as an independent community project not affiliated with Google, despite referencing Google product names such as Antigravity and Gemini for compatibility.
MIT licensed.