# Pi Embedded Canary Summary

- Target backend: `pi_embedded`
- Baseline backend: `native`
- Routes analyzed: 10

## Route Distribution

| Backend | Routes |
| --- | ---: |
| pi_embedded | 8 |
| native | 2 |

## Reliability

| Metric | Target | Baseline | Delta |
| --- | ---: | ---: | ---: |
| Turn completion rate | 100.00% | 100.00% | 0.00pp |
| External success rate | 75.00% | n/a | n/a |
| External attempts | 8 | n/a | n/a |
| External fallbacks | 2 | n/a | n/a |

## Latency

- Target end-to-end: count=8, avg=4615ms, p50=3240ms, p95=8776ms, min=1859ms, max=9381ms
- Baseline end-to-end: count=2, avg=2981ms, p50=2981ms, p95=3081ms, min=2870ms, max=3092ms
- P50 delta (target - baseline): 259ms
- P95 delta (target - baseline): 5695ms
- Target external attempt: count=8, avg=3961ms, p50=2636ms, p95=8766ms, min=135ms, max=9371ms

## Fallback Taxonomy

| Category | Count | Percent |
| --- | ---: | ---: |
| empty_assistant_text | 1 | 50.00% |
| pi_module_interface | 1 | 50.00% |

## Top Fallback Reasons

- Loaded Pi module does not expose a supported session factory (expected one of: createAgentSession, createSession, createPiSession, createAge (1)
- Pi Agent runtime produced no assistant text (1)

## Gate Evaluation

- Gate result: HOLD
- [x] Minimum target routes: actual=8, threshold=>= 8
- [x] Minimum baseline routes: actual=2, threshold=>= 2
- [x] Minimum target external attempts: actual=8, threshold=>= 8
- [x] Completion rate delta (target - baseline): actual=0.00pp, threshold=>= -2.00pp
- [ ] P50 latency delta (target - baseline): actual=259ms, threshold=<= 250ms
- [ ] P95 latency delta (target - baseline): actual=5695ms, threshold=<= 700ms
- [ ] Fallback rate (target external attempts): actual=25.00%, threshold=<= 5.00%