wtf is rewind-properly?

rewind-properly fixes a gap in two popular AI coding tools: Cursor's checkpoint button and Claude Code's rewind feature. Both tools only track changes made through their own file-editing commands. If the AI agent instead runs a terminal command, like deleting a file, generating new files, or running a code generator, that change is invisible to the checkpoint system. Clicking restore or rewind rolls back the edits the agent made directly, but leaves anything done through the terminal completely untouched, which can quietly leave deleted files gone or unwanted generated files in place. This project is a small set of git hooks, written in bash and python3 with no extra dependencies, that plugs into both Cursor and Claude Code. After every turn where the agent changes anything, the entire workspace gets committed automatically as a journal entry. When you use the built in checkpoint or rewind button, the next message you send triggers a check: if the current state matches an earlier saved snapshot, the tool resets your whole project back to that point, including terminal-made changes, while safely backing up anything discarded first so nothing is permanently lost. A small marker file is bumped by the agent at the start of file-changing turns so even terminal-only changes get tracked precisely. Slash commands round out the workflow. One squashes the messy journal commits into clean, reviewable commits before you push. Another does a file-only rewind that keeps your conversation history intact, and another cleans up old backup data to save disk space. The project includes safeguards for real codebases, such as refusing to interfere during an in-progress merge or rebase, and automatically excluding directories that suddenly generate huge numbers of files, like a fresh npm install. This suits developers actively using Cursor or Claude Code on real projects who want their rewind or checkpoint button to genuinely undo everything the agent did, not just the parts it edited directly. Setup requires git and python3 on macOS or Linux, and the project is released under the MIT license.