Ghostwriter

Every engineering team has a bus factor problem. A developer leaves and takes years of undocumented business logic with them. The team inherits code that works — but nobody knows why. Ghostwriter fixes this. You give it a GitHub repository and the departing engineer's username. It scans the entire codebase using AST parsing and git blame forensics to find every complex, undocumented file that engineer owned. It then calculates each file's blast radius — how many modules break if that logic is misunderstood — and ranks them by risk. From there, IBM BOB generates targeted questions specific to each flagged file and walks the engineer through a simple Q&A — one question at a time, about their own code. No documentation to write. Just answers in plain English. The output is a structured handover playbook containing every critical module, its risk level, blast radius, and the engineer's own explanation of the logic behind it. Context that would have been lost forever is now part of the codebase.