Persistent worktrees (server, client, copy, audio, visual, ci, planning,
maintenance) caused agents crossing boundaries, stuck agents leaving
uncommitted work, and index.lock collisions. Replaced with ephemeral
sprint branches (sprint-{N}/{team}) and worktrees created on demand.
Changes:
- New start-sprint script replaces start-session (dynamic tabs per active team)
- Sprint teardown integrated into sprint-start skill (A1c step)
- SR_DB_PATH env var for database access from any directory
- CLAUDE.md team boundaries rewritten (scope-based, not directory-based)
- Agent Rule 0 updated to team scope dirs instead of worktree isolation
- PR review uses git show instead of cross-directory reads
- Briefing template updated for sprint-{N}/{team} branch naming
- Deleted worktree-update skill (obsolete)
- Removed WORKTREE_TEAM env var and cross-directory Read permissions
- All 8 persistent worktrees removed
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>