cmux▌
manaflow-ai/cmux · updated Jun 13, 2026
MDX-style export adds YAML metadata + attribution linking explainx.ai and this canonical listing URL.
Deterministic control of cmux window, workspace, pane, and surface topology for multi-pane layout automation.
- ›Commands cover window and workspace creation, pane splitting, surface movement and reordering, focus routing, and visual attention cues via flash triggers
- ›Uses short reference handles (window:N, workspace:N, pane:N, surface:N) by default; supports UUID input and output when needed
- ›Designed for automation workflows requiring precise, repeatable placement and navigation across
cmux Core Control
Use this skill to control non-browser cmux topology and routing.
Core Concepts
- 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
# identify current caller context
cmux identify --json
# list topology
cmux list-windows
cmux list-workspaces
cmux list-panes
cmux list-pane-surfaces --pane pane:1
# create/focus/move
cmux new-workspace
cmux new-split right --panel pane:1
cmux move-surface --surface surface:7 --pane pane:2 --focus true
cmux reorder-surface --surface surface:7 --before surface:3
# attention cue
cmux trigger-flash --surface surface:7
Handle Model
- Default output uses short refs:
window:N,workspace:N,pane:N,surface:N. - UUIDs are still accepted as inputs.
- Request UUID output only when needed:
--id-format uuids|both.
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 and reorder/move |
| references/panes-surfaces.md | Splits, surfaces, move/reorder, focus routing |
| references/trigger-flash-and-health.md | Flash cue and surface health checks |
| ../cmux-browser/SKILL.md | Browser automation on surface-backed webviews |
| ../cmux-markdown/SKILL.md | Markdown viewer panel with live file watching |
How to use cmux on Cursor
AI-first code editor with Composer
Prerequisites
Before installing skills in Cursor, ensure your development environment meets these requirements:
- ›Cursor installed and configured on your development machine
- ›Node.js version 16.0+ with npm package manager (verify with
node --version) - ›Active project directory or workspace where you want to add cmux
Execute installation command
Execute the skills CLI command in your project's root directory to begin installation:
The skills CLI fetches cmux from GitHub repository manaflow-ai/cmux and configures it for Cursor.
Select Cursor when prompted
The CLI will show a list of available agents. Use arrow keys to navigate and space to select Cursor:
Verify installation
Confirm successful installation by checking the skill directory location:
Reload or restart Cursor to activate cmux. Access the skill through slash commands (e.g., /cmux) or your agent's skill management interface.
Security & Verification Notice
We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.
Skills execute code in your development environment. Always verify the publisher's identity, review recent commits, and test in isolated environments before production deployment.
List & Monetize Your Skill
Submit your Claude Code skill and start earning
Use Cases▌
User Story & Requirements Generation
Create detailed user stories, acceptance criteria, and feature specs
Example
Generate user stories for 'password reset feature' with acceptance criteria, edge cases, and test scenarios
Reduce spec writing time by 50%, ensure comprehensive coverage
Competitive Analysis
Research competitors, compare features, identify gaps
Example
Analyze 5 competitor products, create feature comparison matrix, suggest differentiation opportunities
Complete competitive research in 2 hours instead of 2 days
Roadmap Prioritization
Evaluate features using frameworks (RICE, ICE, Kano) and create prioritized backlogs
Example
Score 20 feature ideas using RICE framework, generate prioritized roadmap with rationale
Make data-driven prioritization decisions faster
Stakeholder Communication
Draft PRDs, status updates, and stakeholder presentations
Example
Create executive summary of Q3 roadmap, monthly progress report, feature launch announcement
Save 3-5 hours/week on communication overhead
Implementation Guide▌
Prerequisites
- ›Claude Desktop or compatible AI client
- ›Access to product documentation and roadmap tools (Jira, Notion, etc.)
- ›Understanding of product management frameworks (RICE, Jobs-to-be-Done, etc.)
- ›Stakeholder contact information and communication channels
Time Estimate
30-60 minutes to see productivity improvements
Installation Steps
- 1.Install product management skill
- 2.Start with user story generation for known feature
- 3.Progress to competitive analysis: research 2-3 competitors
- 4.Use for roadmap prioritization: apply RICE/ICE scoring
- 5.Draft stakeholder communications and refine based on feedback
- 6.Build template library for recurring PM tasks
- 7.Share effective prompts with product team
Common Pitfalls
- ⚠Not validating competitive research—verify facts before sharing
- ⚠Accepting user stories without involving engineering team
- ⚠Over-relying on frameworks without qualitative judgment
- ⚠Not customizing outputs to company culture and communication style
- ⚠Skipping stakeholder validation of generated requirements
Best Practices▌
✓ Do
- +Validate research and competitive analysis with real data
- +Collaborate with engineering when generating technical requirements
- +Customize frameworks and templates to your company context
- +Use skill for first drafts, refine with stakeholder input
- +Document successful prompt patterns for PM tasks
- +Combine AI efficiency with human judgment and intuition
✗ Don't
- −Don't publish competitive analysis without fact-checking
- −Don't finalize user stories without engineering review
- −Don't make prioritization decisions solely on AI scoring
- −Don't skip customer validation of generated requirements
- −Don't ignore company-specific context and culture
💡 Pro Tips
- ★Provide context: company goals, constraints, customer feedback
- ★Ask for alternatives: 'Show 3 ways to prioritize this roadmap'
- ★Request stakeholder-specific formatting: 'Executive summary vs. engineering spec'
- ★Use skill for 70% generation + 30% customization to company needs
When to Use This▌
✓ Use When
Use for user story writing, competitive research, roadmap prioritization, stakeholder communication, and PRD drafting. Best for reducing repetitive documentation and research work.
✗ Avoid When
Avoid for strategic product vision (requires deep customer empathy), pricing decisions (needs market and financial expertise), or when face-to-face customer discovery is more valuable than speed.
Learning Path▌
- 1Basic: user stories, feature specs, status updates
- 2Intermediate: competitive analysis, prioritization frameworks, PRDs
- 3Advanced: product strategy, go-to-market planning, OKR setting
- 4Expert: product vision, market positioning, business model innovation
Discussion
Product Hunt–style comments (not star reviews)- No comments yet — start the thread.
Ratings
4.4★★★★★25 reviews- ★★★★★Amelia Nasser· Nov 15, 2024
Solid pick for teams standardizing on skills: cmux is focused, and the summary matches what you get after install.
- ★★★★★Arya Nasser· Oct 22, 2024
cmux reduced setup friction for our internal harness; good balance of opinion and flexibility.
- ★★★★★Amelia Chen· Oct 6, 2024
cmux has been reliable in day-to-day use. Documentation quality is above average for community skills.
- ★★★★★Zaid Nasser· Sep 17, 2024
Useful defaults in cmux — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
- ★★★★★Min Taylor· Sep 13, 2024
I recommend cmux for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
- ★★★★★Oshnikdeep· Sep 9, 2024
We added cmux from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
- ★★★★★Ganesh Mohane· Aug 28, 2024
cmux fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
- ★★★★★Aisha Agarwal· Aug 8, 2024
I recommend cmux for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
- ★★★★★Min Sethi· Aug 4, 2024
Useful defaults in cmux — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
- ★★★★★Yash Thakker· Jul 27, 2024
cmux has been reliable in day-to-day use. Documentation quality is above average for community skills.
showing 1-10 of 25