cmux — security grade SAFE, quality 62/100

Security audit verdict: SAFE · quality 62/100

No red flags found in any of the 11 categories — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →

by manaflow-ai · Codex Skill · ★ 27.3k

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

🔒 Is cmux safe to install? View the security audit →

About cmux

cmux A Ghostty-based macOS terminal with vertical tabs and notifications for AI coding agents English Türkçe ▶ Demo video · <a hr

ampclaude-codeclicodexcoding-agentsgeminighosttymacosmultiplexermultitasking

Quick Facts

Stars27,341
Forks2,388
LanguageSwift
CategoryCodex Skill
Quality Score61.8793069856514/100
Open Issues5294
Last Updated2026-09-23
Created2026-01-28
Platformsclaude-code, cli, codex, gemini
Est. Tokens~17k

Compatible Skills

These tools work well together with cmux for enhanced workflows:

  • agent-deck — semantic(0.33)+complementary+rare_topics+similar_pop+shared_platform (51%)
  • superset — semantic(0.22)+complementary+similar_pop+shared_platform (48%)
  • my-ai-tools — semantic(0.33)+complementary+rare_topics+shared_platform (46%)
  • agent-safehouse — semantic(0.17)+complementary+similar_pop+shared_platform (46%)
  • overstory — semantic(0.18)+complementary+rare_topics+similar_pop+shared_platform (46%)

cmux alternative? Top 6 similar tools

Looking for a cmux alternative? If you're comparing cmux with other codex skill tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

  • herdr by herdrdev · ⭐ 40.3k

    the runtime your coding agents live on

  • herdr by ogulcancelik · ⭐ 22.3k

    agent multiplexer that lives in your terminal.

  • superset by superset-sh · ⭐ 14.5k

    Superset is an agentic IDE to orchestrate 100+ coding agents in parallel. Run any agent with your own subscrip

  • orca by stablyai · ⭐ 75.7k

    Orca is the ADE for working with a fleet of parallel agents. Run any coding agent with your own subscription.

  • emdash by generalaction · ⭐ 5.8k

    Emdash is the Open-Source Agentic Development Environment (🧡 YC W26). Run multiple coding agents in parallel.

  • agents by wshobson · ⭐ 39.8k

    Multi-harness agentic plugin marketplace for Claude Code, Codex, Cursor, OpenCode, GitHub Copilot, Google Anti

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Frequently Asked Questions

What is cmux?

cmux is Open source Ghostty-based macOS terminal with vertical tabs and notifications for AI coding agents. Built for multitasking, organization, and programmability.. It is categorized as a Codex Skill with 27.3k GitHub stars.

What programming language is cmux written in?

cmux is primarily written in Swift. It covers topics such as amp, claude-code, cli.

How do I install or use cmux?

You can find installation instructions and usage details in the cmux GitHub repository at github.com/manaflow-ai/cmux. The project has 27.3k stars and 2388 forks, indicating an active community.

What are the best alternatives to cmux?

The top alternatives to cmux on Agent Skills Hub include herdr, herdr, superset. Each offers a different approach to the same problem space — compare them side-by-side by stars, quality score, and community activity.

How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy, covering 11 red-flag categories including credential harvesting, data exfiltration, and curl | sh installers. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

View on GitHub → Browse Codex Skill tools