commit-rewriter 0.1

Simon Willison's commit-rewriter provides a web interface for editing Git commit messages before publication. He built it after coding-agent text and private issue references appeared in the initial commits for the Datasette security releases. The release announcement describes a way to revise that history deliberately.

Submitting edits first creates a timestamped branch preserving the repository's current state. The tool then rewrites every commit from the earliest edited message through the latest commit. That scope matters: changing an older message affects the subsequent history, while the saved branch provides a route back.