What is tmux-slopchop-cc?

tmux-slopchop-cc is a keyboard driven terminal tool for reviewing code changes made by Claude Code, the AI coding assistant. It floats a review screen over your existing terminal session, showing you a git diff line by line, so you can walk through what changed without scrolling back through a chat conversation to find it. As you review the diff, you can mark specific lines with FIX, meaning you want Claude to change that part, or DISCUSS, meaning you want Claude to explain or justify what it did without changing it. Once you are done marking lines, you submit, and the tool builds a prompt from your notes and places it directly into Claude Code's text input inside the same terminal pane, using a tool called tmux that manages multiple terminal panes. Importantly, it only places the text there. It does not send it. You still read the prompt and press Enter yourself before anything happens. Setup requires Node.js version 18 or newer, tmux, and Claude Code itself running inside a tmux pane. After installing, you add a short snippet to your tmux configuration file that binds a keyboard shortcut to open the review popup over whichever pane you are working in. From there, number keys choose what to review, such as uncommitted changes or the last commit, and single letter keys move between lines, jump between changed sections, and mark FIX or DISCUSS. The tool can also run outside the popup from the command line, printing the built prompt to your terminal, copying it to your clipboard, or sending it to a specific tmux pane you name. This project is a fork of an existing tool called pi-slopchop, with its review screen and diff handling reused, but its backend swapped out so it works with Claude Code instead of the original Pi agent. As of this version, code inside the diff is not color highlighted by type, only marked as added or removed. It is released under the MIT license.