Leo CardzClaude Code already records every file change in its session data. Every edit, every version, every diff. It was all there in the JSONL, just buried.
Built File History into Poirot. See exactly what changed across your session. Compare versions. Save as patch, export as image, to clipboard.
Open source, native macOS, under 6 MB, fully offline.
The data was always there. It just needed a window.
