Show HN: Ccmux – Reduce context switching for parallel Claude Code sessions (github.com)

I’ve been running parallel Claude Code instances while working on different tasks. Two problems kept slowing me down:

  1. I was constantly jumping between terminals to see which session needed input.

  2. Using git worktrees added setup friction (installing deps, bootstrapping environments, etc.), which discouraged parallel work.

So I built ccmux.

It’s a thin layer on top of tmux that:

  - Adds a glanceable sidebar UI showing all Claude Code sessions

  - Surfaces attention-needed states with visible alerts

  - Wraps git worktrees with a lightweight workflow abstraction so spinning up parallel tasks feels cheap

Technical details:

  - tmux provides the pane/session orchestration

  - The sidebar is built with Python’s Textual (rich TUI)

  - Each Claude Code session runs as a window in a nested tmux session.

I now use it daily to juggle multiple AI coding sessions without losing context. Happy to answer questions or dive into implementation details.