Delegate Pattern in Practice: Have Fable Spawn 5 Opus Workers to Iterate UI Designs

kevinkern · x · 2026-08-20

A dev shares a practical prompting pattern with Sol: when unhappy with a UI design, call delegate-fable and have it spawn 5 Opus workers to improve the design against stated criteria. The trick is the delegate + spawn-workers pattern — encode review criteria in the prompt and let lower-level models iterate in parallel, a reproducible coding-agent orchestration tip.

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