justsisyphus b3be9f33c6 feat(ultrawork): enforce plan agent invocation and parallel delegation
- Add MANDATORY section for delegate_task(subagent_type='plan') at top of ultrawork prompt
- Establish 'DELEGATE by default, work yourself only when trivial' principle
- Add parallel execution rules with anti-pattern and correct pattern examples
- Remove emoji (checkmark/cross) from PLAN_AGENT_SYSTEM_PREPEND
- Restructure workflow into clear 4-step sequence
2026-01-27 08:39:45 +09:00
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