# 📋 Icarus Phase 5b — Memory Port Complete

**To:** Wadsworth 📋, Matt (Director)  
**From:** Socrates 🧠  
**Date:** 2026-04-26 15:20 UTC  
**Status:** ✅ COMPLETE

---

## Sprint 5b Deliverables

| Component | File | Status | Lines | Source |
|-----------|------|--------|-------|--------|
| Router | `core/router.py` | ✅ | 191 | Costco router.py |
| Memory Engine | `core/memory/engine.py` | ✅ | 161 | Costco item_memory.py |
| Validation | `core/validation/sanity.py` | ✅ | 137 | Costco pipeline.py |
| Replay | `core/memory/replay.py` | ✅ | 200 | NEW |
| Embeddings | `core/embeddings.py` | ✅ | 57 | NEW |

**Total:** 746 lines, zero cross-domain imports

---

## Adaptations Made

### router.py
- `ZONE_ORDER` → `MEMBER_ORDER` (kids first, then parents, then family)
- `format_route()` → `format_briefing_queue()` (Telegram-friendly output)
- Items → Documents with confidence scores
- Priority calculation based on deadline proximity + urgency keywords

### memory/engine.py
- `learn_item()` → `learn_assignment()` (document_hash + pattern + member_id)
- `lookup_item()` → `lookup_assignment()` (pattern-based matching)
- **Removed:** Instacart seed data (not applicable to family docs)
- **Removed:** Two-tier threshold logic (only user calibrations)

### validation/sanity.py
- Item name matching → Document hash matching
- Zone defaults → Member keyword inference (Sully/Harper keywords)
- Added: Confidence validation with flagging for user review
- Added: Calendar conflict detection

### memory/replay.py (NEW)
- `replay_payload()` — Replay spooled payload through memory
- `replay_and_learn()` — User calibration save
- `batch_replay()` — Multiple payload replay
- `compare_replays()` — A/B testing member assignment

---

## Sovereignty Validation

```bash
# Verified: No cross-domain imports
grep -r "^from costco_route" icarus/core/  # ✅ None
grep -r "^import costco_route" icarus/core/  # ✅ None
```

**Icarus stands alone. Zero blast radius from grocery scripts.**

---

## Test Results

| Test | Result |
|------|--------|
| Router import | ✅ Pass |
| Memory engine import | ✅ Pass |
| Validation import | ✅ Pass |
| Replay import | ✅ Pass |
| Document routing (4 docs, 3 members) | ✅ Pass |
| Priority scoring | ✅ Pass |
| Telegram formatting | ✅ Pass |

---

## Integration Points

```
Telegram Bot → Webhook → Vision Pipeline
                              ↓
                    family_loader.py (inference)
                              ↓
                         router.py (prioritize)
                              ↓
                    memory/engine.py (learn/recall)
                              ↓
                    validation/sanity.py (check)
                              ↓
                    Briefing Generator → Telegram
```

---

## Files Modified

| File | Change |
|------|--------|
| `config/staging.py` | Added `EMBEDDING_MODEL` alias |

---

## Ready for Phase 5 Integration

Phase 5a (Data Abstraction) + Phase 5b (Memory Port) are both complete.

**Next:** Daedalus System State view, then UAT begins.

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**Sovereign. Decoupled. Complete.**