Claude Code mod
muster
[Experimental] Unattended Claude workers over ACP — a coordinator dispatches headless workers with an optional permission fence, an event log, file-based escalation and report-file completion; a Claude Mod band shows in-flight workers (needs Claude Code 2.1.304+)
Install
/plugin marketplace add musingfox/cc-plugins
/plugin install muster@nick-personal-marketplaceMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L1Reads: reads files, reads env vars, reads mod state, draws
- Draws in
AbovePrompt- Hooks
session.startui.render
From a static scan of the mod's code by awesome-claude-code-mods. It shows what the code asks for, not a security review.
How Claude Code mods work
- A mod is a plugin with a JavaScript or TypeScript module that runs inside Claude Code (version 2.1.287 or later). It can draw panes beside the transcript, a band above the prompt, buttons and toasts, restyle the spinner and tool rows, and watch or rewrite tool calls and prompts.
- It installs like any plugin: add its marketplace with /plugin marketplace add owner/repo, then /plugin install name@marketplace.
- Check what a mod can reach before installing: it runs with your permissions. Reach goes from drawing only, to reading files, to writing files or running processes, to the network. Run claude plugin validate on a clone to list its hooks and calls without running it.
- Turn one off from the Installed tab in /plugin, or start Claude Code with --safe-mode to skip every customization for a session.
Details
- Repository
- musingfox/cc-plugins
- Folder
muster- Marketplace
nick-personal-marketplace- Author
- Nick Huang
- License
- MIT
- Last updated
- 30 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is muster?
[Experimental] Unattended Claude workers over ACP — a coordinator dispatches headless workers with an optional permission fence, an event log, file-based escalation and report-file completion; a Claude Mod band shows in-flight workers (needs Claude Code 2.1.304+) It is a mod for Claude Code, from musingfox/cc-plugins on GitHub.
What can the muster mod access?
Its widest reach is "reads" (reads files, reads env vars, reads mod state, draws). It draws in AbovePrompt. Like any mod, it runs with your permissions.
How do I install muster?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add musingfox/cc-plugins and then /plugin install muster@nick-personal-marketplace.
Is muster popular?
musingfox/cc-plugins has 2 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 30 October 2026.
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