Problem: Knowledge concentration ("bus factor") risk is invisible — teams don't know which files only one person understands until that person leaves.
Solution: Bus Factor Oracle uses the GitLab Orbit knowledge graph to find files/functions
touched by only one contributor, enriched with merged_at recency and ImportedSymbol
import-graph analysis to surface compounding fragility, then scores and reports the risk.
How we built it: Four Orbit query types (aggregation + traversal) across five node domains,
validated against the live Orbit API (e.g. discovered count_distinct is unsupported, the
5-node MergeRequestDiffFile join times out at the gateway, old_path is the correct file
identifier). Packaged as an AI Catalog agent, a Duo CLI skill, and a flow.
What's next: CODEOWNERS auto-suggestions, scheduled drift reports, and per-module documentation-sprint prioritization.
Built With
- gitlab
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