# Phase 6 Runtime Hardening Progress

Status: In Progress
Related roadmap: `docs/transition_roadmap_locked.md`

## Scope
Phase T6 focuses on read-side/runtime hardening, not write-side refactoring.

## Completed in this slice
- Added deterministic output normalization in `memory.execute`:
  - results sorted by `score desc, bead_id, title`
  - chains sorted by `score desc, path, edge rel tuple`
- Normalized warning handling in confidence evaluation:
  - warnings are now deduplicated + sorted for deterministic diagnostics
- Added deterministic order regression test:
  - `tests/test_memory_execute_deterministic_order.py`

## Validation
- `tests.test_memory_execute_deterministic_order`
- `tests.test_memory_execute_contract`
- `tests.test_memory_execute_next_action_policy`
- `tests.test_memory_search_typed_confidence_unified`

All passing.

## Completed in this slice
- Added confidence edge-case calibration:
  - causal + ungrounded paths now prefer `ask_clarifying` over `broaden`
  - preserves deterministic calibration guardrails
- Added confidence edge-case regression tests:
  - `tests/test_memory_execute_confidence_edge_cases.py`
- Added contributor-facing runtime contract note:
  - `docs/runtime_contract_clarity.md`

## Completed in final sweep
- full regression suite slice executed across read-side + write-side compatibility tests (29 tests, all passing)
- eval executed (`eval/memory_execute_eval.py`) with stable quality metrics and surface-aware metrics
- phase closeout checklist authored (`docs/phase6_closeout_checklist.md`)

## Status
T6 complete.
