cmux Custom Sidebar

cmux renders custom sidebars from a small SwiftUI-style file at runtime: no Xcode, no build step, no signing. The file hot-reloads on save, binds to live cmux state (workspaces, tabs, git, PRs, clock), and can run real cmux commands on tap.

The person asking is usually describing a result ("a sidebar that shows my workspaces and lets me jump between them"), not an implementation. Turn that into a clean, native-looking sidebar and make the engineering decisions for them. Do not ask them about SwiftUI, files, or syntax.

Full reference

This skill is the workflow summary. The complete authoring contract (every supported view, modifier, language feature, and data field) is one command away; read it before writing a non-trivial sidebar:

cmux docs sidebars
curl -fsSL https://raw.githubusercontent.com/manaflow-ai/cmux/main/docs/custom-sidebars.md

Workflow