Sources

Sources are plugin marketplace repositories — git repos or local directories containing agents and skills.

Adding sources

# Git repository (cloned automatically)
cmx source add team https://github.com/acme/agent-standards

# Local directory
cmx source add guidelines ~/Work/guidelines

Listing sources

cmx source list

Browsing a source

cmx source browse guidelines

Shows all agents and skills with their versions. Deprecated artifacts are marked with ⛔.

Updating sources

Git-backed sources are automatically updated when stale (>60 minutes since last fetch) during browse, install, and outdated operations.

To explicitly update:

# Update a specific source
cmx source update guidelines

# Update all git-backed sources
cmx source update

Removing sources

cmx source remove guidelines

For git-backed sources, this also deletes the local clone.

Marketplace format

cmx supports two source formats:

Marketplace repos — contain .claude-plugin/marketplace.json listing plugins with their agents and skills. Compatible with Claude Code's native plugin system.
Simple repos — any directory with .md agent files and skill directories containing SKILL.md. cmx auto-discovers these by walking the tree.

See Marketplace Structure for details on creating your own.