Code review found three issues where transaction.go diverged from the main dependencies.go implementation: 1. Add relates-to exemption from cycle detection - bidirectional relationships are valid and should not trigger cycle errors 2. Add metadata and thread_id fields to INSERT - required for replies-to threading to work in transaction context 3. Update error message to match dependencies.go wording 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>