# 2026-04-25 — Icarus Sprint: From Concept to Live

**Session Duration:** ~10 hours  
**Collaborators:** Matt (Director), Wadsworth 📋, Socrates 🧠  
**Outcome:** Icarus staging fully operational through Phase 3, Phase 4 scoped

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## 🎯 Major Deliveries

### 1. Icarus Staging Infrastructure (Phase 1-2)

| Component | Status | Location |
|-----------|--------|----------|
| Hard fork from family_assistant | ✅ Complete | `services/icarus/core/` |
| Model gate (8B/3B strategy) | ✅ Complete | `core/utils/model_gate.py` |
| Isolated staging config | ✅ Complete | `core/config/staging.py` |
| systemd service | ✅ Deployed | `icarus-staging.service` |
| Cloudflare routing | ✅ Live | `icarus-test.hoffdesk.com` |

**Challenges overcome:**
- Missing `__init__.py` at package root — fixed
- PYTHONPATH pointing to wrong directory — fixed
- Missing `python-multipart` — installed
- Ubuntu 24.04 externally-managed-environment — used `--break-system-packages`

### 2. Vision Pipeline (Phase 3)

| Component | Status | Model |
|-----------|--------|-------|
| Vision parser | ✅ Complete | qwen3-vl:8b (hybrid: pdfplumber → vision) |
| Briefing generator | ✅ Complete | 8B models (llama3.1:8b, qwen2.5:7b) |
| API endpoints | ✅ Live | `/vision/status`, `/vision/parse`, `/vision/briefing` |
| End-to-end pipeline | ✅ Working | Document → briefing card |

**Endpoint verified:** `https://icarus-test.hoffdesk.com/`

### 3. Telegram Bot Integration (Phase 4)

| Deliverable | Status |
|-------------|--------|
| Bot handler spec | ✅ Complete |
| Webhook architecture | ✅ Designed |
| User flow | ✅ Documented |
| **Implementation** | ⏳ Ready for Socrates |

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## 📚 Documentation Created

| Document | Purpose |
|----------|---------|
| `icarus-sprint-1-orders.md` | Initial Socrates orders |
| `icarus-phase-1-completion.md` | Phase 1 validation & fixes |
| `icarus-phase-2-deployment.md` | systemd deployment guide |
| `icarus-phase-3-vision-pipeline.md` | Vision API specification |
| `icarus-telegram-ingestion.md` | Telegram options comparison |
| `icarus-phase-4-telegram-bot.md` | Bot handler implementation |

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## 🎉 Success Metrics

- ✅ Zero production impact (family_assistant untouched)
- ✅ 8B models cleared for M4 16GB simulation
- ✅ Hybrid PDF parsing (text extraction + vision fallback)
- ✅ Full sovereign stack (no external APIs except Telegram)
- ✅ 502 → 200 OK on `/vision/status`

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## 📊 Decisions Made

| Decision | Rationale |
|----------|-----------|
| Model strategy: 8B primary, 3B utility | M4 Mac mini 16GB target |
| Skip Chandra 2 OCR | Overkill for briefing cards; qwen3-vl sufficient |
| Bot handler (not Wadsworth proxy) | Product path, scales to family |
| `--break-system-packages` for deps | Staging acceptable, revisit for production |
| Hybrid PDF parsing | Speed: text extraction first, vision fallback |

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## 🚀 Next: Phase 4 Implementation

Socrates to implement:
1. `telegram/handler.py` — webhook handler
2. `api.py` — `/telegram/webhook` endpoint
3. One-time webhook setup
4. Test with real document

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*Session closed: Phase 3 complete, Phase 4 ready.*