AI RESEARCH
When Retrieval Hurts Code Completion: A Diagnostic Study of Stale Repository Context
arXiv CS.CL
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ArXi:2605.14478v1 Announce Type: cross Context: Retrieval-augmented code generation relies on cross-file repository context, but retrieved snippets may come from obsolete project states. Objectives: We study whether temporally stale repository snippets act as harmless noise or actively induce current-state-incompatible code. Methods: We conduct a controlled diagnostic study on a curated 17-sample set of production-helper signature changes from five Python repositories.