← ARC Skills
Docs
A free, open library of production-ready agent skills. Each one is a self-contained SKILL.md package — name, description, steps, and guardrails — written to drop into Claude, Cursor, or any Agent Skills runtime. No account, no lock-in.
What's in the catalog
20 skills across 12 categories: AI, Architecture, Data, Delivery, DevOps, Engineering, Growth, Operations, Productivity, Quality, Security, Support. Each package is a directory with a SKILL.md that follows the Agent Skills specification.
Install a skill
- Open the skill and read When to use and Guardrails first.
- Copy
SKILL.mdinto your runtime:- Cursor personal:
~/.cursor/skills/<slug>/SKILL.md - Cursor project:
.cursor/skills/<slug>/SKILL.md - Claude Code:
.claude/skills/<slug>/SKILL.md
- Cursor personal:
- Keep the guardrails verbatim. Adapt trigger phrases to how your users actually ask.
API
Read-only JSON, no key required:
GET /api/catalog GET /api/catalog?category=Engineering GET /api/catalog?q=review GET /api/catalog?slug=pr-review-summary GET /api/catalog?slug=pr-review-summary&format=raw
CLI
npm run catalog npm run catalog -- "incident" npm run catalog -- --category="Engineering" npm run catalog -- --json npm run validate
Contributing
Add a directory under skills/<slug>/ with a valid SKILL.md (YAML frontmatter: name + description, plus a ## Guardrails section). Run npm run validate and open a PR. See CONTRIBUTING.md.