故障排查技巧：提示缓存异常时用“0 输出高成本”规则触发自动降级

• Session usage/cost telemetry is enabled and queryable per turn.
• You have an approved fallback model profile for emergency cost control.

1. Define anomaly thresholds (e.g., output_tokens=0 with unusually high input cost over N consecutive turns).
2. When threshold triggers, freeze non-critical automations and route new work to fallback model.
3. Capture before/after telemetry snapshot and compare cacheRead/cacheWrite ratio.
4. Open incident record and only re-enable primary model after controlled regression prompts pass.

• Issue report is community evidence, not a confirmed root cause; treat mitigations as temporary until upstream fix is verified.
• Thresholds are workload-dependent; overly tight limits can create false positives and unnecessary failovers（需验证）.

This tip is aggregated from community/public sources and preserved with attribution.