Open-source Gage tool enables retroactive audit of Claude Code sessions for bugs and design flaws

According to a GitHub repository, a developer created Gage, an open-source CLI and terminal UI tool that scans Claude Code transcripts to identify issues with evidence. The tool caught a bug the developer had approved despite Claude flagging it during the session, highlighting the need for post-hoc review of autonomous code work. Gage enables developers to retroactively audit session logs for logic errors and architectural issues.