# Requirements: v1.85 Hypothesis Route Transition Escalation Surface

## Milestone Goal

Close the next post-`v1.84` research-control gap so AITP can turn transition
repair into one operator-visible escalation surface, instead of forcing
operators to infer when repair should become a human checkpoint.

## Final Requirements Status

### Route Transition-Escalation Surface

- [x] `REQ-HESC-01`: runtime surfaces can materialize a bounded route
  transition-escalation summary from route transition repair plus
  operator-checkpoint context.
- [x] `REQ-HESC-02`: replay/read paths expose the escalation decision directly
  instead of leaving that escalation implicit.

### Coexistence Rule

- [x] `REQ-HESC-03`: the route transition-escalation surface coexists cleanly
  with the current route_transition_repair 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-escalation acceptance path plus targeted regression coverage
  for the new escalation surface.

## Traceability

| Requirement | Phase | Status |
|-------------|-------|--------|
| REQ-HESC-01 | Phase 159 | Complete |
| REQ-HESC-02 | Phase 159 | Complete |
| REQ-HESC-03 | Phase 159 | Complete |
| REQ-VERIFY-01 | Phase 159 | Complete |
