Summary

• Restructure coordinator meta prompt with clear sections: Role, Rules, Workflow, Delegation best practices, Task completion criteria
• Add gatekeeper rule: coordinator must verify delegate outputs (run code, read docs, call APIs, cross-check research) instead of trusting at face value
• Add context isolation guidance: delegates receive only the query string, use workspace files for inter-delegate data exchange
• Add structured workflow: investigate → decompose → parallel delegate → review → handle failures → aggregate
• Add concrete task completion criteria (quality, cleanup)
• Remove redundant "Call tools iteratively" from both delegate and coordinator (covered by preamble)
• Remove "Planning as delegation" (covered by general createExpert guidance)

Test plan

• Run existing e2e tests to confirm no regression
• Test coordinator behavior with a multi-delegate expert to verify new prompt improves delegation quality

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