Bouncer: Review AI Code Changes

Nothing gets into your code without your OK.

Let Claude Code work without interruptions, then review everything it changed in one place. Bouncer lists every file Claude touched, shows a clear red/green diff, and lets you keep or undo each file, or all of them at once.

• ✅ Tracks every change: file edits and changes made through shell commands (sed, scripts, mv, rm).
• 🔍 Diff on click: the original on the left, Claude's version on the right.
• ↩️ Undo safely: restores the exact original bytes, deletes files Claude created, brings back files it deleted.
• 🔒 100% local: no account, no telemetry, nothing leaves your machine.

Bouncer is an unofficial, independent tool. It is not made by or affiliated with Anthropic.

Works with

Requires VS Code 1.90 or newer (or a fork based on it), on macOS, Linux, or Windows.

Getting started

1. Install Bouncer and open your project folder.
2. Click the Bouncer icon in the activity bar, then Enable Bouncer.
3. Start a new Claude Code session and ask it to change some files.
4. When Claude finishes you'll see "Bouncer stopped 3 files at the door." Click Review.
5. Click a file to see the diff. Use ✓ Keep or ↺ Undo on each file, or Keep All / Undo All at the top.

Requirements

• Claude Code running in the project folder.
• Node.js on your PATH (Claude Code runs Bouncer's hook with node).
• git on your PATH, to track changes made with shell commands.

Features

• Pending Changes list, with an N badge for new files.
• Diff on click. New files diff against an empty document; deleted files show what was removed.
• Keep / Undo per file, plus Keep All / Undo All. Undo All always asks first, and you're warned before undoing a file with unsaved edits.
• Status bar count (🛡 Bouncer: 3). Click it to jump to the list.
• "Claude finished" notification when files are waiting.
• The Bouncer himself: a tiny pixel-art doorman who watches while Claude works and holds up a sign when files are waiting. Follows your theme and respects reduced-motion settings.

Commands

All commands are in the Command Palette under Bouncer:.

How it works

• Before Claude edits a file, a Claude Code hook saves the original to .bouncer/snapshots/. This happens only the first time per file, so you always compare against the version from before Claude started.
• For shell commands, Bouncer compares the project before and after each command and saves the original of every changed, created, or deleted file. It uses git internally with a private index, so your staging area, branches, and history are never touched.
• Keep forgets the saved original. Undo restores it.
• The hook never blocks or slows down Claude's decisions. Errors go to .bouncer/hook.log.

Privacy

Bouncer runs entirely on your machine. It has no telemetry, makes no network requests, and needs no account. Saved originals stay in your project's .bouncer/ folder, which is kept out of git.

Good to know

• Bouncer's hooks live in your personal .claude/settings.local.json, so teammates are never affected.
• After an extension update, Bouncer updates its hooks automatically the next time it activates.
• Shell-command changes are tracked in git repositories only, and files ignored by .gitignore are skipped. Each shell command takes about 0.2 s longer while Bouncer compares the project.
• In a multi-root workspace, Bouncer uses the first folder.

Troubleshooting

Claude changed files but nothing shows up

• Start a new Claude Code session after enabling. Claude Code loads hooks when a session starts.
• Check that node (and git, for shell commands) work in a terminal.
• Look in .bouncer/hook.log for errors.

Bouncer says it isn't enabled: run Bouncer: Enable in this workspace.

Uninstalling

Run Bouncer: Disable in this workspace in each project first to remove its hooks, then uninstall. If you forget, the leftover hooks are harmless and do nothing. You can also delete the .bouncer/ folder.

Feedback

Found a bug or have an idea? Open an issue or email dev@heybiplab.in.

Roadmap

Per-hunk keep/undo, grouping changes by prompt, change summaries and stats, sensitive-file warnings.

License

MIT