404labs

A growing collection of agent skills installable into 55+ AI coding CLIs via the Vercel Labs skills ecosystem — Claude Code, OpenAI Codex, Google Antigravity, Moonshot Kimi, Cursor, OpenCode, Gemini CLI, Cline, Roo, Windsurf, and more. Each skill lives in its own subdirectory with a SKILL.md at the root; skills with a runtime also ship as npm packages with a built-in installer for the four most common targets.

Skills

Skill	What it does	npm package
securitycheck	Pre-commit secret-leak gate: .gitignore audit, sensitive-file check, diff content scan for API keys, tokens, private keys, DB URIs.	@404labs/securitycheck

Installing a skill

Recommended — via the Vercel Labs skills CLI (55+ supported agent CLIs; auto-detects which one you have):

npx skills add SpectreMercury/404labs --skill <skill-name>            # current agent
npx skills add SpectreMercury/404labs --skill <skill-name> --all      # all agents
npx skills add SpectreMercury/404labs --skill <skill-name> -a codex   # specific agents

Alternative — via the skill's own npm package (skills that ship one; covers Claude Code, OpenAI Codex, Google Antigravity, Moonshot Kimi):

npx @404labs/<skill-name> install                # auto-detect
npx @404labs/<skill-name> install --target all   # install for all 4 supported
npx @404labs/<skill-name> install --list-targets # see all options

Through host CLIs for unsupported targets

• Zhipu GLM — no first-party skill loader; distribute via GLM-skills / clawhub
• MiniMax — use the MiniMax-AI/skills marketplace (which redistributes into Claude Code / Cursor)

Repo layout

404labs/
├── README.md
├── LICENSE
├── .gitignore
└── <skill-name>/
    ├── SKILL.md          # canonical instruction file (loaded by Claude)
    ├── references/       # extra docs the skill points the agent at
    ├── package.json      # if the skill ships a CLI
    ├── bin/  lib/  test/ # CLI source, where applicable
    └── README.md         # human-readable docs for the package

License

MIT — see LICENSE.