The AI workforce engine's driver. One tick moves every ready task one step:
a turn, a gate, or a platform merge. The AI never runs git.
- scheduler.py: tick() over TURN_STAGES/MERGE_STAGES; selection caps
(per-org 3, global 8); optimistic advance so two workers cannot both win;
worktree created for code pipelines, released on completion/cancel/failure
(kept during error_review); budget pause before any turn is spent; merge
conflict back-off; transient-failure retries then the manager's error turn.
- gates.py: diff guard (empty/.git/CI/symlink/oversize), no-progress hash,
tests in the sandbox, green gate that only trusts a green tests row or an
explicit waiver. Every verdict is a gate_results row + a task.gate event.
Fixed forbidden_paths: lstrip("./") stripped all leading dots, hiding
.git and .github from the guard.
- container_engine.build_scheduler + worker drives the engine tick.
- ManagerOutcome.error_kind; TaskSpendRepository.spend_for_task.
- New settings engine_max_concurrent_turns, engine_max_turns_per_org,
engine_tests_timeout_seconds, engine_max_merge_conflicts,
engine_max_task_credits (+ .env.example).
- tests: test_engine_gates.py (13), test_engine_flow.py (11).
Checks: pytest 746 passed/1 skipped, ruff clean, mypy clean (160 files).
