# Requirements: v1.89 Hypothesis Route Transition Commitment Surface

## Milestone Goal

Close the next post-`v1.88` research-control gap so AITP can turn transition
resumption into one operator-visible commitment surface, instead of forcing
operators to infer whether a resumed route has become the durable committed
bounded lane.

## Final Requirements Status

### Route Transition-Commitment Surface

- [x] `REQ-HCOMMIT-01`: runtime surfaces can materialize a bounded route
  transition-commitment summary from route transition resumption plus current
  route state.
- [x] `REQ-HCOMMIT-02`: replay/read paths expose the commitment decision
  directly instead of leaving that commitment implicit.

### Coexistence Rule

- [x] `REQ-HCOMMIT-03`: the route transition-commitment surface coexists
  cleanly with the current route_transition_resumption surface and helper
  mechanisms instead of auto-triggering fresh runtime mutation.

### Verification

- [x] `REQ-VERIFY-01`: the milestone closes with one bounded isolated
  route transition-commitment acceptance path plus targeted regression coverage
  for the new commitment surface.

## Traceability

| Requirement | Phase | Status |
|-------------|-------|--------|
| REQ-HCOMMIT-01 | Phase 163 | Complete |
| REQ-HCOMMIT-02 | Phase 163 | Complete |
| REQ-HCOMMIT-03 | Phase 163 | Complete |
| REQ-VERIFY-01 | Phase 163 | Complete |
