arXiv: 'Code Isn't Memory' — A Structural Codebase Index Inside a Coding Agent

arXiv·medium signal

This June 21 paper tests adding a structural codebase index to a coding agent and finds substantial gains in file localization and issue resolution at no added cost, though it performs comparably to simpler retrieval baselines. A grounded data point for builders deciding whether structural/graph code indexing is worth the complexity versus plain retrieval in agentic coding tools.