cmux
cmux is a Developer environment & CLI skill for AI agents, published by glebis in the claude-skills repository on GitHub. Skillspace rates cmux D (66/100) and it passed the safety scan; the rating is based on static analysis only.
Controls the cmux macOS terminal app (Ghostty-based, AI-agent-aware) via its CLI socket API. Use this skill to: open browser preview panes when a dev server starts or an HTML file is created; spin up named workspaces for parallel subagents; show live sidebar progress/status during long tasks; open utility splits on demand (logs, URLs, terminals) in any direction. Also handles `/cmux demo` — an interactive walkthrough with 3 screens of options that runs personalized live demos. Trigger when: a server starts and needs previewing, an HTML/URL artifact is created, parallel subagents are dispatched, a long task needs visible progress, the user asks to open/show something in a split or tab, or the user invokes `/cmux demo`.
- Grade
- D
- Quality
- 66 / 100
- Safety
- Passed
- GitHub stars
- 374
Unproven: rated by static analysis only, not yet compared head-to-head.
Our two independent classifiers differ on this skill's category, so treat the placement as provisional.
This rating describes the version of the repository we crawled; it may have changed since, so go by its current files.
Our review
- Architecture
- 96 / 100
- Maturity
- Basic: a single SKILL.md
- Security scan
- No issues found
- License
- Not declared. Check the repository before reusing it.
Not checked yet
- Category is a classifier prediction; no model has read this skill yet
- Not judged on the rubric yet (not a contender in its category)
- No blind task eval yet
- Scope (portable / vendor / repo-internal) not assessed; only the top of each category is read for scope
- Sibling files (scripts, references) not fetched; security scan covers SKILL.md only
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