Orchestrate cmux terminal panes — split terminals, run parallel processes, read output from other panes, and use the built-in browser. Use when working inside cmux and you need to run a dev server, watch tests, spawn sub-agents, or preview web pages.
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See how to installReview the instructions the agent will receive before you install.
You have access to cmux tools for managing terminal panes. Use them to run parallel processes, monitor output, and interact with other terminals.
| Tool | Purpose |
|---|---|
cmux_list | List all surfaces (panes) and workspaces |
cmux_split | Split pane right or down, optionally run a command |
cmux_read | Read terminal output from another pane |
cmux_send | Send text or keystrokes to another pane |
cmux_close | Close a pane |
cmux_notify | Send desktop notification |
cmux_browser | Open/navigate/snapshot/click/fill/eval in built-in browser |
1. cmux_split direction="down" command="npm run dev\n"
2. Note the surface ID from the result
3. Work on code in your main terminal (edit files, etc.)
4. cmux_read surface="surface:X" to check dev server output
5. cmux_close surface="surface:X" when done
1. cmux_split direction="right" command="npm test -- --watch\n"
2. Edit code in main pane
3. cmux_read surface="surface:X" to check test results
4. If tests fail, read the output and fix the code
1. cmux_split direction="right" command="pi \"Task description here\"\n"
2. Continue working on your own task
3. cmux_read surface="surface:X" to check sub-agent progress
4. cmux_close surface="surface:X" when sub-agent finishes
1. Start dev server: cmux_split direction="down" command="npm run dev\n"
2. Open browser: cmux_browser action="open" url="http://localhost:3000"
3. Get DOM: cmux_browser action="snapshot" surface="surface:X" compact=true
4. Interact: cmux_browser action="click" surface="surface:X" selector="button.submit"
5. Fill form: cmux_browser action="fill" surface="surface:X" selector="input[name=email]" value="test@example.com"
1. cmux_send surface="surface:X" key="ctrl+c"
2. Wait a moment, then cmux_read to confirm it stopped
cmux_list first if you don't know the surface IDs\n to commands in cmux_split and cmux_send to execute themcmux_read to check what happened in other panescmux_closecmux_notify for long-running tasks so the user knowssurface:2 — use the exact format from cmux_list or cmux_split resultsNo reviews yet. Tell others what you thought.
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Draft, edit, and publish blog posts for e9n.dev. Use when creating new posts, editing drafts, or refining existing content. Handles Eleventy frontmatter, Tailwind formatting, and Espen's authentic voice.
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Parse git history and produce or update a CHANGELOG.md following the Keep a Changelog convention. Supports Conventional Commits, basic prefix conventions, and unstructured commit messages. Intelligently categorizes changes, detects breaking changes, links to PRs/issues, and handles both initial generation and incremental updates. **Triggers — use this skill when:** - User asks to "generate", "create", "update", or "write" a changelog - User mentions "CHANGELOG", "changelog", "release notes" - User says "document changes", "what changed since last release" - User wants to "prepare a release" and needs a changelog entry - User asks to "clean up" or "reformat" an existing changelog **Covers:** Any git-based project. Handles Conventional Commits (feat/fix/chore), Angular convention, basic prefixes (Add/Fix/Remove), and freeform commit messages. Outputs Keep a Changelog format with optional Common Changelog enhancements.
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Review code for quality, security, performance, and maintainability. Use when reviewing PRs, auditing a codebase, or refactoring. Covers TypeScript, Node.js, infrastructure-as-code, and full-stack web apps.
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Generate and maintain AI-readable markdown documentation for a codebase in docs/. Use this skill whenever the user asks to document their codebase, generate project docs, create architecture docs, update documentation after code changes, build a knowledge base for AI agents, create onboarding docs, map out a codebase, or explain a project structure. Also trigger when users say things like "document this repo", "create docs for my project", "update the docs", "write architecture documentation", "help AI understand my code", "generate a codebase overview", or "maintain docs". This skill is specifically about creating structured markdown files in a docs/ directory that serve as a knowledge base — NOT about writing inline code comments, README files, or API reference docs from docstrings.
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