security-ownership-map

Analyzes git history to build a bipartite graph of people and files, then computes bus factor, sensitive-code ownership, and co-change clusters. Exports CSV and graph formats for Neo4j, Gephi, or direct LLM queries. Compares results against CODEOWNERS to surface ownership drift. Git log and CODEOWNERS alone can't tell you which sensitive files have drifted to a single hidden owner or gone untouched for a year — this builds the graph and computes that automatically.