Glossary
Worktree
A separate working directory for a git branch, used to run parallel loops without lock contention.
Worktrees are git's mechanism for having multiple working directories attached to the same repository. ClosedLoop.ai uses them heavily for parallel feature development: each feature gets its own worktree, and loops are serialized by lock key per worktree.
Override the worktree parent with SYMPHONY_WORKTREE_PARENT_DIR.