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Subagents and the iron triangle: when fanning out costs more than it saves

Spawning subagents is the feature everyone wants to show off. Hand the model a big task, split it into five, run them at once, done in a fifth of the time. On a demo it looks like free speed. It is not free. It is the old project triangle — speed, cost, quality: pick two — wearing new clothes. Suba…

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  1. 2026-11-03 14:02 · DEV Community — AI
    Subagents and the iron triangle: when fanning out costs more than it saves

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