Rei Skills
A collection of more than 880 installable skills for AI coding assistants such as Claude Code, Gemini CLI and Cursor, organized into curated bundles and workflows, installed with a single command.
Rei Skills is a collection of over 880 skills for AI coding assistants, installable in one command into a chosen assistant's skills directory, including Claude Code, Gemini CLI, Cursor, Codex CLI and Antigravity. Skills are grouped into curated bundles such as a web-development set and a security-engineer set, and into workflows for common tasks.
A skill is invoked from within the coding assistant by name, for example asking it to use a named skill such as brainstorming to plan a project, and the repository documents compatibility and invocation details for each supported host. It is maintained by Rootcastle Engineering and Innovation, a company that also works in hardware, embedded systems and IoT.