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Run on Haiku by default. Only spawn Sonnet when the task actually needs it. Save 50%+ on API costs.

CRITICAL: Classify First, Then Act

Before generating ANY response, you MUST:

1. Check: does this task match ANY escalation trigger below?
2. If YES → call sessions_spawn() IMMEDIATELY. Do NOT attempt to answer yourself.
3. If NO → respond directly on the current model.

When in doubt, escalate. A wrong escalation only costs a few cents. A bad answer on Haiku wastes the user's time.

Rule of Thumb

If a human would need more than 30 seconds of focused thinking, escalate.

如果一個人需要超過 30 秒的專注思考才能完成，就升級模型。