---
phase: 145-structured-transition-and-demotion-trace
plan: 01
status: passed
requirements-completed:
  - REQ-TRANSITION-01
  - REQ-TRANSITION-02
  - REQ-DEMOTION-01
  - REQ-DEMOTION-02
  - REQ-VERIFY-01
---

# Phase 145 Verification

## Status

passed

## Verification Evidence

- transition-history contract tests:
  - `python -m pytest research/knowledge-hub/tests/test_transition_history_contracts.py -q`
  - result: `2 passed`
- low-level transition/projection helper slice:
  - `python -m pytest research/knowledge-hub/tests/test_runtime_profiles_and_projections.py -k "projection_helpers_write_valid_outputs" -q`
  - result: `1 passed, 12 deselected`
- replay-surface slice:
  - `python -m pytest research/knowledge-hub/tests/test_topic_replay.py -q`
  - result: `2 passed`
- isolated acceptance:
  - `python research/knowledge-hub/runtime/scripts/run_transition_history_acceptance.py --json`
  - result: `success`
  - checks:
    - transition count: `2`
    - backtrack count: `2`
    - demotion count: `2`
    - event kinds: `promotion_rejected`, `runtime_resume_state`
- runtime acceptance harness slice:
  - `python -m pytest research/knowledge-hub/tests/test_runtime_scripts.py -k "transition_history_acceptance" -q`
  - result: `1 passed, 30 deselected`

## Notes

- Verification stayed intentionally targeted to the new transition/demotion
  history surface.
- I also attempted one broader existing promotion-gate service regression, but
  it currently fails in this working tree for a pre-existing candidate-seeding
  reason outside the new transition-history acceptance path, so I did not use
  it as milestone evidence.
