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Long-running agents: is the bottleneck the model or the scaffolding around it?

Something I keep noticing with agent setups: every individual step is easy for the model, but the full chain still falls apart on long tasks. I think it comes down to three things: Error compounding. At 95% accuracy per step, a 20-step chain only succeeds about a third of the time (0.95^20 is rough…

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  1. 2026-10-05 07:06 · r/artificial
    Long-running agents: is the bottleneck the model or the scaffolding around it?

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