cmux-backend
Backend TypeScript and Cloud VM development rules for cmux. Use when editing web/app/api, web/services, backend scripts, Cloud VM lifecycle, provider integrations, Postgres, Stack Auth pricing gates, migrations, or provider image build scripts.
Before you install
- Last update
- Files in folder
- 4
- Scripts
- No script files found
- SKILL.md size
- 2.7 KB (about 681 tokens of context each time it loads)
- License
- No license file
- Source on GitHub
- manaflow-ai/cmux
Skills are plain text instructions the agent follows, sometimes with scripts. Check the source, prefer repositories with many installs and stars, and read any script it ships.
Install
npx skills add manaflow-ai/cmux@cmux-backendRuns in a terminal with Node.js 18 or newer. Add -y to skip the prompts and -g to install for every project instead of this one.
Install for your agent
npx skills add manaflow-ai/cmux@cmux-backend --agent claude-code -y- Project install writes to
.claude/skills/cmux-backend- Global install writes to
~/.claude/skills/cmux-backend
Start a new session afterwards so the agent picks the skill up. In Claude Code you can also call it directly with /cmux-backend.
What it does
cmux Backend Core rules - Default backend TypeScript to Effect under web/app/api/, web/services/, and backend scripts touching providers, databases, auth, rate limits, retries, timeouts, or telemetry. - Keep Next route handlers thin: parse the request, run one Effect program at the boundary, map typed errors to HTTP responses, treat unexpected defects separately. - Plain TypeScript is for trivial data shapes, constants, config files, frontend React, and small glue where Effect would add ceremony without improving failure handling. - Cloud VM backend logic stays in Vercel route handlers and…
Excerpt from the skill's own SKILL.md. Read the full file on GitHub before installing: skills run with your agent's permissions.
Categories
Related skills
- cmux
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.
- cmux-browser
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End-user browser automation with cmux. Use when you need to open sites, inspect or interact with browser surfaces, wait for page state, and extract data without stealing focus.
- cmux-markdown
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Open markdown files in a formatted viewer panel with live reload. Use when you need to display plans, documentation, or notes alongside the terminal with rich rendering (headings, code blocks, tables, lists).
- cmux-settings
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View and edit cmux settings in ~/.config/cmux/cmux.json, including terminal, browser, Markdown, diff, notes, HTML, file preview, and sidebar-tool behavior. Use when the user wants to change cmux preferences, set a value by JSON path, validate the file, open it in an editor, or look up which keys cmux recognizes. Triggers on '/cmux-settings', 'change cmux setting', 'customize viewer', 'set <something> in cmux', 'cmux config', 'cmux.json', or 'rebind a cmux shortcut'.
- cmux-workspace
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Work inside the current cmux workspace and terminal. Use for cmux workspace, current workspace, caller surface, panes, surfaces, socket targeting, and non-interfering cmux automation.
- cmux-customization
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Customize cmux for an end user, including terminal, browser, Markdown, diff, file preview, notes, HTML, and right-sidebar viewers. Use when changing cmux.json actions, custom commands, workspace layouts, plus-button behavior, surface tab bar buttons, Command Palette entries, Dock controls, sidebar and app settings, shortcuts, notifications, browser routing, examples-library presets, or Ghostty-backed terminal preferences.