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Closing the Consistency Gap: Self-Evolving Agents That Learn to Stay on Course

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TL;DR - This paper introduces a self-evolving agent framework that learns from unstable trajectory steps to make repeated executions more consistent. On AppWorld, it substantially improves the share of tasks that succeed across all five runs.

  • Defines the “consistency gap”: ReAct with GPT-4.1 averages a 77% per-run pass rate, but succeeds in all five attempts on only 53% of tasks.
  • A Consistency Analyzer identifies steps likely to produce divergent outcomes across executions.
  • A Guideline Generator converts these diagnoses into targeted episodic memories for future runs on related tasks.
  • Five-run success rises by 16 percentage points on same-task evaluation and 13 points on similar-task generalization.

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Closing the Consistency Gap: Self-Evolving Agents That Learn to Stay on Course

arXiv cs.AI Evelyn Duesterwald, Benjamin Elder, Lilian Ngweta, Shashanka Ubaru, Malgorzata Zimon 2026-09-08 arXiv:2609.08832
Public signals Semantic Scholar citations 0 · Semantic Scholar influential citations 0
Providers: Hugging Face · N/A OpenAlex · N/A Publisher · N/A Semantic Scholar · Citations 0 · Influential citations 0 X · N/A Fetched 2026-09-12 14:14:24.525809 UTC

TL;DR - This paper introduces a self-evolving agent framework that learns from unstable trajectory steps to make repeated executions more consistent. On AppWorld, it substantially improves the share of tasks that succeed across all five runs.

  • Defines the “consistency gap”: ReAct with GPT-4.1 averages a 77% per-run pass rate, but succeeds in all five attempts on only 53% of tasks.
  • A Consistency Analyzer identifies steps likely to produce divergent outcomes across executions.
  • A Guideline Generator converts these diagnoses into targeted episodic memories for future runs on related tasks.
  • Five-run success rises by 16 percentage points on same-task evaluation and 13 points on similar-task generalization.
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