Claude Code editor integration

Rexmod

Turn Rex into a harness for your coding agent: see what it changed, review it in Neovim, send comments back. Claude Code, Codex, OpenCode, Pi.

Install

Install
brew install alpcanaydin/rexmod/rexmod

Found in the project README. Check it for setup steps after installing.

From source
git clone https://github.com/alpcanaydin/rexmod.git

From the README

# rexmod

  *Turn Rex into a harness for your coding agent.*

  The loop • Install • Usage • How it works • FAQ

https://github.com/user-attachments/assets/ac2e4950-17d7-4bd9-b16a-9bd8cb463f49

One minute, sped up while the agent works. No player? Download the video.

Rex already runs your agents. rexmod builds the harness around them: it records every turn, so you
see exactly what the agent changed; it opens a real editor beside the agent to read and review that
code; and it hands your review back to the agent as its next input. Prompt, change, review, feedback:
the whole loop stays in one Rex window, for Claude Code, Codex, OpenCode or Pi.

rexmod is an unofficial mod, not made by or affiliated with Superlogical. It patches your local copy
of Rex so Rex loads the panel; the uninstaller puts the official build back.

The loop

1. Prompt. Talk to your agent as usual. rexmod snapshots the working tree the moment you send.
2. Change. The *Changes panel* on the right, styled like Rex's own sidebar, fills in while the
   agent works. Its *Changes* tab shows *Last Turn*, exactly what this reply changed, next to
   *Uncommitted* (split into staged and unstaged) and *Branch*, as a list or a tree. The other tabs
   are *Info* (the agent's state and session, your plan usage, what runs in its pane and the ports it
   listens on) and a *Files* tree. The panel follows Rex's Interface style, Classic or Glass.
3. Review. Click a file and it opens in Neovim beside the agent, at the changed line, with LSP,
   completion and live diagnostics. Space r on a line or a selection leaves a review comment.
4. Feedback. Your comments ride along with your next message to the agent, or go right away
   from the panel. The agent answers them, and the next turn starts at step 2.

Around the…
Read the full README on GitHub

Details

Language
Go
License
MIT
Last updated
3 November 2026
Topics
claude-codecode-reviewcodexmacosneovimopencoderex

FAQ

What is Rexmod?

Turn Rex into a harness for your coding agent: see what it changed, review it in Neovim, send comments back. Claude Code, Codex, OpenCode, Pi. It is a editor integration for Claude Code, from alpcanaydin/rexmod on GitHub.

How do I install Rexmod?

Run brew install alpcanaydin/rexmod/rexmod, then follow the setup in the README.

Is Rexmod popular?

alpcanaydin/rexmod has 36 GitHub stars and 3 forks. It was last updated on 3 November 2026.

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