ResearchResearch paperSafety & Alignment · Large Language Models1 source · Oct 6, 2026

Learning from Failures: A Failure-Driven Prompt Refinement for LLM-Based Vulnerability Analysis

We propose Failure-Driven Prompt Refinement (FDPR), a methodology that analyzes recurring model failures to guide evidence-based prompt refinement.

Key points

  • Large Language Models have emerged as promising tools for software vulnerability analysis, but their effectiveness depends heavily on prompt design.
  • Using the Damn Vulnerable Java Application (DVJA), we identify recurring failure modes, including false positives, false negatives, unsupported reasoning, and CWE misclassification, and translate them into targeted prompt refinements.
  • The results show that failure-driven refinement improves the reliability of LLM-based vulnerability analysis while yielding reusable prompt design principles.
  • More broadly, this work demonstrates that recurring model failures provide a principled foundation for prompt engineering, enabling the systematic development of more reliable LLM-based vulnerability analysis systems.

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