Context Rot in Long-Horizon Search

ParshinShojaee · x · 2026-07-14

This comment praises a paper on context rot in long-horizon search, particularly appreciating the experiments on "recursion" and "sub-agent isolation". The paper highlights that as context accumulates, agents in long-horizon tasks become increasingly prone to giving up early or submitting uncertain answers prematurely. The longer the run, the worse the issue gets. Beyond diagnosing the phenomenon, the authors propose mitigation strategies like context management and rejection sampling. The commenter also notes that the varying vulnerability of different models to these strategies is worth attention.

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