Two mechanisms, different purposes: - Pinned molecule (bd mol run) = What you are working on, tracked by beads - Handoff mail = Optional context notes for session restarts Updated templates, architecture.md, and builtin_molecules.go 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>