Cmux Shared Behavior

Q: What is a Claude Code skill and how does the Cmux Shared Behavior skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Cmux Shared Behavior is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Product category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Product · Sub-category: ux-research · Last updated: 2026-06-17

Shared behavior and mutation-path rules for cmux. Use when a behavior is exposed through multiple entrypoints such as keyboard shortcuts, command palette, context menu, CLI, settings, debug menu, optimistic UI, or tests that previously missed a bug.

From the source SKILL.md

Use one shared action/model path when behavior is exposed through multiple entrypoints.

What this skill does

Cmux Shared Behavior is a community-contributed Claude Code skill in the ux-research sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/cmux-shared-behavior/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when a behavior is exposed through multiple entrypoints such as keyboard shortcuts, command palette, context menu, CLI, settings, debug menu, optimistic UI, or tests that previously missed a bug.

Who uses this skill

The Cmux Shared Behavior Claude Code skill is built for product managers, product designers, and cross-functional teams planning, shipping, and measuring product features. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 118,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/cmux-shared-behavior
curl -L https://claudskills.com/skills/cmux-shared-behavior/SKILL.md \
  -o ~/.claude/skills/cmux-shared-behavior/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/cmux-shared-behavior/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/cmux-shared-behavior/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\cmux-shared-behavior\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Cmux Shared Behavior Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/cmux-shared-behavior/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Cmux Shared Behavior skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Cmux Shared Behavior skill?

Use Cmux Shared Behavior when your Claude Code task falls under the Product category — specifically in the ux research area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Cmux Shared Behavior" or describe the task and let Claude pick). Browse related skills at /category/product/.

What is a Claude Code skill and how does the Cmux Shared Behavior skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Cmux Shared Behavior is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Product category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/manaflow-ai/cmux/blob/HEAD/skills/cmux-shared-behavior/SKILL.md
Author: manaflow-ai
Website: https://cmux.com

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

manaflow-ai. (2026). Cmux Shared Behavior [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/cmux-shared-behavior/

BibTeX

@misc{cmux-shared-behavior-2026,
  author    = {manaflow-ai},
  title     = {Cmux Shared Behavior [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/cmux-shared-behavior/}
}

Embed this skill

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Badge

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