Bought a skill on Sigrix? It can install straight into Claude Code and stay updated — no re-downloading files. One command, once, and every skill you own (or later buy) shows up as an installable plugin.
§ 01 One-time setup
- Open Settings → Claude Code plugin feed and hit Create feed URL.
- Copy the command it shows you. It looks like this:
/plugin marketplace add https://…/mp/<your-token>.git
- Paste it into Claude Code. Done — that's the whole setup.
Your feed URL is shown in full exactly once, at creation. Treat it like a private calendar link: anyone who has it can read the skills you own. If it ever leaks (shell history, a screen share), regenerate it in Settings — the old URL stops working immediately.
§ 02 Installing a skill
Every skill page and your library show the exact install command for skills you own:
/plugin install <skill-name>@sigrix
That's it. The skill is now invokable in Claude Code.
§ 03 Getting updates
When a seller ships an update, it flows through the feed:
- Manual: run
/plugin marketplace update sigrixany time. Unchanged skills are skipped; updated ones are fetched. - Automatic: in Claude Code, run
/plugin, open Marketplaces, selectsigrix, and enable auto-update. (Auto-update is off by default for third-party marketplaces.)
New purchases appear the same way — update the marketplace and install.
§ 04 Refunds, revocation, and your feed URL
- A refunded skill drops out of your feed on the next update. Anything already installed stays in your local plugin cache — please uninstall it; your license ended with the refund.
- Regenerate (Settings) replaces your feed URL. The old one dies on the very next request. You'll need to re-add the marketplace with the new URL.
- Revoke turns the feed off entirely until you create a new URL.
§ 05 Prefer plain files?
The portable SKILL.md download on every skill page is the same compiled content the feed serves. It works offline and in other tools that speak the agentskills.io format — Codex CLI, OpenCode, claude.ai projects, or the Claude API. The feed is the convenient path, not the only one.
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