Developer builds lightweight tool to preserve AI coding session reasoning in git

A developer identified a recurring problem where the decision-making context from AI-assisted coding sessions was lost once chat windows closed, leaving only code changes without explanation. When a teammate questioned a SQLite caching choice over Redis, the original reasoning — documented only in a now-gone AI chat — could not be reconstructed. To address this, the developer built a small open-source CLI tool called Alpheon, written in a single Python file with no server or database dependency. The tool reads a git diff and generates a markdown 'Handoff Note' capturing what changed, why, what alternatives were rejected, and what remains unresolved. The note is appended to a HANDOFF.md file committed directly into the repository, making the reasoning portable across editors and AI agents.