# Pipeline Report: DDD T4 Maturity Annotations

**Run:** run_a05a193c
**Project:** SwarmAI
**Profile:** full
**Status:** PUSH-READY

## Summary

Evidence-based maturity state machine for DDD document sections. 4 levels (Sparse→Growing→Mature→Evergreen) with graduated autonomy — sections must earn trust through production verification and decision usage before the agent relies on them fully.

## Delivery

| Metric | Value |
|--------|-------|
| Commits | 3 (f4acb6c7, 593d6e26, dfd20af4) |
| Lines added | ~1010 |
| Files changed | 3 (ddd_maturity.py NEW, context_health_hook.py ext, test_ddd_maturity.py NEW) |
| Tests new | 31 |
| Tests total green | 114 (DDD + hooks) |
| Regressions | 0 |
| Smoke tests | 5 (all pass) |

## TDD Cycle

- 8 acceptance criteria → 8 RED tests → 8 GREEN implementations
- Vertical tracer bullets (not horizontal slices)
- Adversarial review: 3 HIGH + 2 MEDIUM found and fixed

## Adversarial Review Findings (Fixed)

| # | Severity | Issue | Fix |
|---|----------|-------|-----|
| 1 | HIGH | inject_maturity drops trailing newline | Preserve + restore trailing \n |
| 2 | HIGH | days_at_level never incremented | Compute from last_promoted timestamp |
| 3 | HIGH | Promotion logs inflate source_count | Filter maturity_promotion from evidence |
| 4 | MEDIUM | Orphaned annotations ignored | Documented: must be first non-blank line after ## |
| 5 | MEDIUM | Invalid level in promote_section | Validate against LEVELS tuple |

## Quality Convergence (1 iteration)

- L1 Tests: ✅ 31/31 pass
- L2 Type-Safe: ✅ No runtime type errors
- L3 No Regressions: ✅ 114/114 pass
- L4 Adversarial: ✅ All findings resolved
- L5 DDD Conformance: ✅ No violations
- L6 Decisions: ✅ 4 classified (2 mechanical, 2 taste)

## Decisions

| Stage | Decision | Classification |
|-------|----------|---------------|
| THINK | Full evidence-based maturity (B) over simplified proxy | taste (user override) |
| BUILD | Evidence stored inline in .md via HTML comment | mechanical |
| BUILD | Hook runs after cultivation (order dependency) | taste |
| EVALUATE | Simplified promotion proxy replaced by T3 health | taste |

## Architecture

```
context_health_hook._light_refresh()
  → _auto_cultivate_pipeline_lessons()  (writes changelog)
  → _auto_cultivate_session_signals()   (writes changelog)
  → _update_maturity()                  (reads changelog → updates evidence → promotes)
      → update_evidence_from_changelog()  (source_count + days_at_level)
      → evaluate_all_promotions()         (state machine checks)
      → promote_section()                 (writes .md + changelog)
```
