Author

Qiuyu Ding

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Preprint Aug 2026

FailForge: Distilling Procedural Competence from Persistent Failures into Code Agents

FailForge is proposed, an agentic framework that converts failed rollouts into training signal, and recovers over 26% of previously failed instances at marginal additional cost, and training Qwen3.5-4B on the augmented corpus improves the SWE-bench Verified resolve rate by 6.6 points over a strong RFT baseline.

Dongyi Lv, E. Fushun, Aichen Cai et al. · 1 citation