mjmendo

claude-plugins

Personal Claude Code plugin repository for mjmendo. Add new skills here and they'll be available across all machines after a quick install.

---

Quickstart: New Machine Setup

1. Register this repo as a marketplace

Add the following to ~/.claude/settings.json (create the file if it doesn't exist):

{
  "extraKnownMarketplaces": {
    "mjmendo": {
      "source": {
        "source": "github",
        "repo": "mjmendo/claude-plugins"
      }
    }
  }
}

2. Install the plugin

Open Claude Code and run:

/plugin install mjmendo-plugins@mjmendo

That's it. All skills are now available.

---

Using Skills

Skills are invoked with a slash command. After installation, the cmux skills are available as:

/cmux-agents
/cmux-agents-isolation
/cmux-agents-prompts

Claude also invokes skills automatically when relevant — e.g., if you ask to spin up parallel agents, it will use /cmux-agents without you having to call it explicitly.

---

Adding a New Skill

1. Create the skill directory and file

skills/
  my-skill/
    SKILL.md       ← required
    reference.md   ← optional supporting docs

2. Write SKILL.md

The frontmatter controls how Claude uses the skill:

---
description: One-line description — Claude uses this to decide when to invoke the skill.
allowed-tools: Read, Bash
---

Your instructions here. Use $ARGUMENTS to reference what the user passed.

3. Push to this repo

git add skills/my-skill/
git commit -m "Add my-skill"
git push

4. Update on your machines

/plugin update mjmendo-plugins@mjmendo

---

Repository Structure

.claude-plugin/
  plugin.json        ← plugin manifest (name, version, paths)
skills/
  cmux-agents/
    SKILL.md
  cmux-agents-isolation/
    SKILL.md
  cmux-agents-prompts/
    SKILL.md
README.md

---

Skills Reference

Skill	Invoke	Description
cmux-agents	/cmux-agents	Orchestrate parallel Claude subagents in cmux panes
cmux-agents-isolation	/cmux-agents-isolation	Pick the right isolation strategy (shared fs, file ownership, worktrees)
cmux-agents-prompts	/cmux-agents-prompts	Write self-contained prompts for subagents