arXiv AI By Yu Shi, Hao Li, Bram Adams, Ahmed E. Hassan

HAFixAgent: History-Aware Agentic Program Repair

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HAFixAgent is a history-aware program repair agent that incorporates blame-derived repository context into its repair loop. In a large-scale study on 854 Defects4J and 501 BugsInPy bugs, the agent’s best history heuristic improved repair rates by up to +64.3% with weaker models and outperformed existing agents by significant margins. The three complementary history heuristics together repair more bugs than any single heuristic, with only modest increases in agent steps or tokens.

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arXiv AI
Jul 3

BLAgent: Agentic RAG for File-Level Bug Localization

arXiv:2605. 17965v2 Announce Type: replace-cross Abstract: Bug localization remains a key bottleneck for large language model (LLM)-based software maintenance, where accurately identifying faulty code is essential for debugging, root cause analysis, triage, and automated program repair (APR).

By Md Afif Al Mamun, Gias Uddin