skills: A plugin of cross-agent skills for AI coding agents — GitHub Copilot, Claude, and Codex

by jongio · Codex Skill · ★ 18

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

Security audit verdict: SAFE · quality 67/100

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.

agent-skillsai-agentsclaudecodexcopilot-clideveloper-toolsgithub-copilotskillsskills-plugin

Quick Facts

Stars18
Forks5
LanguageJavaScript
CategoryCodex Skill
LicenseMIT
Quality Score67/100
Open Issues3
Last Updated2026-10-22
Created2026-05-22
Platformsclaude-code, cli, codex, node
Est. Tokens~14k

About skills

A plugin of cross-agent skills for AI coding agents — GitHub Copilot, Claude, and Codex — installable with the skills CLI (npx skills add). Includes create-canvas-kit for building Copilot canvas extensions.

skills alternative? Top 6 similar tools

Looking for a skills alternative? If you're comparing skills with other codex skill tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

  • claude-emporium by Vvkmnn · ⭐ 82

    🏛 [UNDER CONSTRUCTION] A (roman) claude plugin marketplace

  • intellegix-code-agent-toolkit by intellegix · ⭐ 57

    Automated loop driver, slash commands, council automation, MCP browser bridge, and portfolio governance for Cl

  • mcpick by spences10 · ⭐ 95

    Vendor-neutral MCP configuration manager — one CLI to add, toggle, and audit MCP servers and skills across eve

  • swift-testing-agent-skill by bocato · ⭐ 81

    Agent Skill providing expert Swift Testing guidance for AI coding tools: covering test doubles, fixtures, asyn

  • deterministic-agent-control-protocol by elliot35 · ⭐ 88

    Governance gateway for AI agents — bounded, auditable, session-aware control with MCP proxy, shell proxy & HTT

  • mcp-steroid by jonnyzzz · ⭐ 78

    Give your AI Agent a whole IDE, not just the files

More Codex Skill Tools

Explore other popular codex skill tools:

View all Codex Skill tools →

Popular JavaScript Agent Tools

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