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Major architecture decision: rigs are now pure container directories, not git clones. This prevents agent confusion by ensuring each agent has exactly one place to work (their own /rig/ clone). Key changes: - Rig root is NOT a git repo - just a container - Rig-level .beads/ holds issues for all agents in that rig - Agents use BEADS_DIR env var to point to rig's beads - Refinery's clone is the authoritative "main branch" view - Added design decisions #6 (rig as container) and #7 (BEADS_DIR) See also: beads issue bd-411u for BEADS_DIR documentation. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>