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35743bd | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 | # OmniRoute Auto-Combo Engine
> Self-managing model chains with adaptive scoring
## How It Works
The Auto-Combo Engine dynamically selects the best provider/model for each request using a **6-factor scoring function**:
| Factor | Weight | Description |
| :--------- | :----- | :---------------------------------------------- |
| Quota | 0.20 | Remaining capacity [0..1] |
| Health | 0.25 | Circuit breaker: CLOSED=1.0, HALF=0.5, OPEN=0.0 |
| CostInv | 0.20 | Inverse cost (cheaper = higher score) |
| LatencyInv | 0.15 | Inverse p95 latency (faster = higher) |
| TaskFit | 0.10 | Model × task type fitness score |
| Stability | 0.10 | Low variance in latency/errors |
## Mode Packs
| Pack | Focus | Key Weight |
| :---------------------- | :----------- | :--------------- |
| 🚀 **Ship Fast** | Speed | latencyInv: 0.35 |
| 💰 **Cost Saver** | Economy | costInv: 0.40 |
| 🎯 **Quality First** | Best model | taskFit: 0.40 |
| 📡 **Offline Friendly** | Availability | quota: 0.40 |
## Self-Healing
- **Temporary exclusion**: Score < 0.2 → excluded for 5 min (progressive backoff, max 30 min)
- **Circuit breaker awareness**: OPEN → auto-excluded; HALF_OPEN → probe requests
- **Incident mode**: >50% OPEN → disable exploration, maximize stability
- **Cooldown recovery**: After exclusion, first request is a "probe" with reduced timeout
## Bandit Exploration
5% of requests (configurable) are routed to random providers for exploration. Disabled in incident mode.
## API
```bash
# Create auto-combo
curl -X POST http://localhost:20128/api/combos/auto \
-H "Content-Type: application/json" \
-d '{"id":"my-auto","name":"Auto Coder","candidatePool":["anthropic","google","openai"],"modePack":"ship-fast"}'
# List auto-combos
curl http://localhost:20128/api/combos/auto
```
## Task Fitness
30+ models scored across 6 task types (`coding`, `review`, `planning`, `analysis`, `debugging`, `documentation`). Supports wildcard patterns (e.g., `*-coder` → high coding score).
## Files
| File | Purpose |
| :------------------------------------------- | :------------------------------------ |
| `open-sse/services/autoCombo/scoring.ts` | Scoring function & pool normalization |
| `open-sse/services/autoCombo/taskFitness.ts` | Model × task fitness lookup |
| `open-sse/services/autoCombo/engine.ts` | Selection logic, bandit, budget cap |
| `open-sse/services/autoCombo/selfHealing.ts` | Exclusion, probes, incident mode |
| `open-sse/services/autoCombo/modePacks.ts` | 4 weight profiles |
| `src/app/api/combos/auto/route.ts` | REST API |
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