agent-skills: Production-grade engineering skills for AI coding agents

by addyosmani · Codex Skill · ★ 112.5k

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

Featured in: Claude Code Skills

How to install agent-skills

git clone https://github.com/addyosmani/agent-skills.git

Taken from the project's README on GitHub. Check the security audit before running it.

Security audit verdict: SAFE · quality 73/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

🧪 Tested by Agent Skills Hub

One of 36 tools we ran end to end on the same task for our Claude Code Skills page (2026-10-11).

Result: 25 distinct skills · 100% meet the format · installed whole, every skill keeps its description

See the count → · See the whole test →

agent-skillsantigravityclaude-codecodexcursorskills

Quick Facts

Stars112,517
Forks11,779
LanguageJavaScript
CategoryCodex Skill
LicenseMIT
Quality Score73/100
Open Issues122
Last Updated2026-11-01
Created2026-02-15
Platformsclaude-code, codex, node
Est. Tokens~16k

About agent-skills

Agent Skills Production-grade engineering skills for AI coding agents. Skills encode the workflows, quality gates, and best practices that senior engineers use when building software. These ones are packaged so AI agents follow them consistently across every phase of development. Commands 7 slash commands that map to the development lifecycle.

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

View on GitHub → Browse Codex Skill tools