What Comes Before Tickets

**Executive Summary:** This is a reflective engineering post outlining the year-long design and implementation of OpenGraph — a generic ingestion and analysis substrate added to BloodHound to enable arbitrary identity/graph data to be ingested, searched, and analyzed; it covers problem framing, Phase One (ingest contract and source-kind deletion), Phase Two (analysis, hybrid relationships, and cross-platform pathfinding), team dynamics, and lessons learned.