# v1.53 Milestone Audit

Status: passed

## Scope Closed

- Phase `91`: runtime path contracts
- Phase `92`: registry and current-topic path normalization
- Phase `93`: closure and regression audit

## Production Outcome

`v1.53` now exposes a reviewable runtime path-hygiene surface through:

- `research/knowledge-hub/knowledge_hub/runtime_path_support.py`
- `research/knowledge-hub/knowledge_hub/aitp_service.py`
- `research/knowledge-hub/runtime/current_topic.json`
- `research/knowledge-hub/runtime/current_topic.md`
- `research/knowledge-hub/tests/test_runtime_path_hygiene_contracts.py`

## Verification Evidence

- runtime path contract slice:
  - `python -m pytest research/knowledge-hub/tests/test_runtime_path_hygiene_contracts.py -q`
  - result: `1 passed`
- service path slice:
  - `python -m pytest research/knowledge-hub/tests/test_aitp_service.py::AITPServiceTests::test_remember_current_topic_writes_active_topics_registry_and_bootstraps_known_topics research/knowledge-hub/tests/test_aitp_service.py::AITPServiceTests::test_select_next_topic_prefers_priority_then_focus_and_reports_skips research/knowledge-hub/tests/test_aitp_service.py::AITPServiceTests::test_get_current_topic_memory_prefers_registry_focus_and_projects_compatibility_file -q`
  - result: `3 passed`
- maintainability budget:
  - `python -m pytest research/knowledge-hub/tests/test_maintainability_budgets.py::MaintainabilityBudgetTests::test_watchlisted_files_stay_within_declared_budgets -q`
  - result: `1 passed`
- full knowledge-hub suite:
  - `python -m pytest research/knowledge-hub/tests -q`
  - result: `333 passed, 10 subtests passed`
