Cmux

OrganizationPopular

manaflow-ai

cmux

End-user control of cmux topology and routing (windows, workspaces, panes/surfaces, focus, moves, reorder, identify, trigger flash). Use when automation needs deterministic placement and navigation in a multi-pane cmux layout.

Overview

Publisher	manaflow-ai
Repository	`cmux`
Skill name	`cmux`
Stars	27.5K
Forks	2.4K
Bundled files	5
Links	Skill source Repository Homepage

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
5 bundled files
Scripts, templates, and references the model can read while it works. Files are read-only and never executed.
Open source
Published by manaflow-ai on GitHub. Read the source before you install it.

Installation

Install the Cmux AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/manaflow-ai/cmux/tree/main/skills/cmux
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/manaflow-ai/cmux.git /tmp/cmux
mkdir -p .claude/skills
cp -r /tmp/cmux/skills/cmux .claude/skills/cmux

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Cmux in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Cmux on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Cmux is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

cmux Core Control

Non-browser cmux topology and routing.

Window: top-level macOS cmux window.
Workspace: tab-like group within a window.
Pane: split container in a workspace.
Surface: a tab within a pane (terminal or browser panel).

Fast start

bash
cmux identify --json                              # current caller context
cmux list-windows / list-workspaces / list-panes
cmux list-pane-surfaces --pane pane:1
cmux new-workspace
cmux new-split right --surface surface:1
cmux new-split down --command "npm run dev"       # new terminal runs the command in a live shell
cmux move-surface --surface surface:7 --pane pane:2 --focus true
cmux split-off --surface surface:7 right
cmux reorder-surface --surface surface:7 --before surface:3

# workspace context-menu actions (color, description, rename, pin, ...)
cmux workspace-action --action set-color --color Blue
cmux workspace-action --action set-description --description "Ship checklist"

# attention cue
cmux trigger-flash --surface surface:7

Handle model

Output defaults to short refs (window:N, workspace:N, pane:N, surface:N). UUIDs are accepted as input; request UUID output only when needed with --id-format uuids|both.

Initial command on new terminals

new-workspace, new-split, new-pane, and new-surface accept --command <text>. cmux starts the terminal's normal interactive shell and delivers the text plus one Enter at spawn time, so the command runs immediately and the shell stays alive after it exits. No follow-up send or send-key enter is needed, and the text is passed literally (quoting, &&, pipes, and $VARS are interpreted by the new shell). The flag is terminal-only: it is rejected with --type browser|simulator|agent-session, blank text is ignored, and new-workspace --layout ignores it because layout surfaces define their own commands. Details: references/panes-surfaces.md.

Settings

cmux-owned settings live in ~/.config/cmux/cmux.json. cmux docs settings prints the docs URL, schema URL, raw GitHub resources, cmux.json paths, and reload command. cmux settings, cmux settings cmux-json, and cmux settings shortcuts open the UI.

cmux reload-config reloads both cmux.json and ~/.config/ghostty/config, refreshing terminals in place with no app restart.

Terminal rendering (font, cursor style, theme, scrollback, background-opacity, background-blur) belongs in Ghostty config, not cmux settings. Everything else (app behavior, sidebar, notifications, browser behavior, automation, workspace colors, cmux-owned shortcuts) is cmux settings. Before editing, copy any existing cmux.json to a timestamped .bak next to it. Legacy ~/.config/cmux/settings.json and ~/Library/Application Support/com.cmuxterm.app/settings.json are read only as fallback for missing keys.

For a completed download, the CLI can inspect the bounded history owned by the target browser surface without consuming a waiter:

bash
cmux browser --surface <surface> download list
cmux browser --surface <surface> download list --limit 5 --json

Use the browser skill for the full response fields and wait/path compatibility details.

Deep-dive references

Reference	When to Use
references/handles-and-identify.md	Handle syntax, self-identify, caller targeting
references/windows-workspaces.md	Window/workspace lifecycle, reorder/move, and context-menu actions (color, description, rename)
references/panes-surfaces.md	Splits, surfaces, move/reorder, focus routing
references/trigger-flash-and-health.md	Flash cue and surface health checks
../cmux-workspace/SKILL.md	Current caller workspace rules and non-disruptive automation
../cmux-settings/SKILL.md	Safe cmux.json settings edits and validation
../cmux-browser/SKILL.md	Browser automation on surface-backed webviews
../cmux-markdown/SKILL.md	Markdown viewer panel with live file watching
../cmux-capture/SKILL.md	Screenshots and clips of a cmux window for evidence

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

Frequently asked questions

What does the Cmux AI skill do?

Why use Cmux on TypingMind?

Because you install it once and use it with any model. Cmux is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Cmux in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/manaflow-ai/cmux/tree/main/skills/cmux. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Cmux?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Cmux?

As many as you like. As long as a model supports skills, you can use Cmux with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Cmux AI skill free?

It is published on GitHub by manaflow-ai. Check the repository for licensing terms. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

cmux Core Control

Fast start

Handle model

Initial command on new terminals

Settings

Deep-dive references

Bundled files

Frequently asked questions

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