#88th of 31 in Skills, plugins and rules
agent-skills
Markdown engineering skills and slash commands for AI coding agents
- Stars
- 104.4k
- License
- MIT
- Last commit
- Oct 2026
- Last release
- Oct 2026
- Language
- JavaScript
Overview
A pack of 25 SKILL.md workflows covering spec, planning, build, test, review and ship, plus 9 slash commands and 4 reviewer personas. Each skill has steps, verification gates and a table of excuses agents use to skip steps. It installs through the skills CLI (`npx skills add addyosmani/agent-skills`) or native plugin routes for Claude Code, Codex, Gemini CLI and others.
Who it is for: Developers who want repeatable, gated workflows from AI coding agents
Strengths
- Installs into 70+ agents via one `npx skills add` command
- Native plugin installs for Claude Code, Codex, Gemini CLI, Antigravity and Command Code
- Plain Markdown, so it works with any agent that reads instruction files
- Every skill ends with evidence requirements such as passing tests or build output
Weaknesses
- Single-skill npx install omits the shared references/ directory (issue #361)
- Antigravity CLI: wrapper commands from legacy TOMLs are not discoverable in affected releases
- Testing reference examples target JavaScript/TypeScript only
- Claude Code marketplace install clones over SSH, which fails without GitHub keys
What it needs
- no GPU
Also in Skills, plugins and rules
See all 31| Rank | Project | Score |
|---|---|---|
| 1 | skillsAgent skills for planning, TDD, debugging and code review | 94 out of 100 |
| 2 | eccSkills, agents, hooks and rules that add a workflow to coding agents | 93 out of 100 |
| 3 | superpowersSkill library that enforces a plan-then-TDD workflow in coding agents | 89 out of 100 |
| #4 | ponytailPrompt skill that makes coding agents write less, safer code | 89 out of 100 |
| #5 | cavemanProxy and skill that cut token use in coding agents | 89 out of 100 |