Webhook Relay
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DocumentationFundamentals

skills.sh — the Agent Skills CLI

skills.sh is the open-source CLI for installing Agent Skills into Claude and other agents. Use it to add the Webhook Relay skills with a single command.

What is skills.sh?

skills.sh is the open-source command-line tool for installing Agent Skills — the small instruction packs that teach Claude (and other skill-aware agents) how to perform a specific task. You run it with npx skills, point it at a GitHub repository, and it downloads the skills and drops them into your agent's skills directory.

In short, it:

  • Installs skills from any GitHub repo with one command — npx skills add <owner>/<repo>.
  • Works per-project or globally — keep skills next to a single project, or install with -g so every agent on your machine can use them.
  • Is open source and free — no account, no registry lock-in; it just pulls the skill files from the repository you point it at.

It's the fastest way to install the Webhook Relay skills, which is why the Agent Skills docs use it.

Add the Webhook Relay skills

The Webhook Relay skills live in the open-source webhookrelay/skills repository. Add all of them with:

npx skills add webhookrelay/skills

Install globally so every agent on your machine picks them up:

npx skills add webhookrelay/skills -g

Or install just one skill with --skill:

npx skills add webhookrelay/skills --skill webhook-debug

Once installed, your agent can drive Webhook Relay directly — forwarding webhooks, transforming them, debugging incoming requests, opening tunnels, and scheduling recurring webhooks. See Agent Skills for the full list of skills and what each one does.

Most skills use the relay CLI — see CLI installation, then run relay login. The webhook-debug skill needs nothing but curl.

Other ways to install

skills.sh is one distribution channel. The same skills are also available via the Claude Code plugin marketplace, the ClawHub registry, or a manual copy from the repo — see Agent Skills for every option.

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