mattstack marketplace

The first-party Claude Code plugin catalog for the mattstack estate. rt adds it on every machine it sets up; anyone can add it by hand.

Installation

Add the marketplace to Claude Code once:

claude plugin marketplace add https://github.com/m4ttstack/mattstack-marketplace

Usage

Install any plugin from the catalog:

$ claude plugin install mattstack@mattstack      # the mattstack skills pack
$ claude plugin install chat@mattstack           # rt chat presence skills and hooks
$ claude plugin install fast-browser@mattstack   # Chrome automation for Claude Code and Codex

Update later with claude plugin update <plugin>@mattstack.

Beyond the skills, the mattstack pack ships a UserPromptSubmit + PostToolUse hook that stamps each turn with local time, zone, and UTC. It arrives with the plugin... there is nothing separate to install and no settings.json edit.

This repo is generated

Its whole tree is published from marketplace/ in m4ttstack/mattstack by scripts/release/marketplace.sh, one commit per release that changes it. Edits made here are overwritten by the next release; change the catalog in rt.

Plugin sources

The mattstack and chat plugins publish from this repository's tree (plugins/mattstack, marketplace/plugins/chat); fast-browser is a pinned URL source. A plugin in its own repo is pinned to a commit, so a given catalog commit always installs the same plugin code:

"source": { "source": "url", "url": "https://github.com/…", "ref": "main", "sha": "<commit>" }

Claude Code resolves sha. ref records which branch the pin came from, so marketplace.sh --refresh can re-resolve it; bumping a pin is a reviewed commit in rt, never an implicit follow-the-branch.

License

MIT