Point Bob at any legacy repo and get a health score, renovation plan, and guided modernization — in one click. The Problem Every engineering team has that repo — 50k+ lines of undocumented, untested code written 8 years ago in an outdated framework. Nobody wants to touch it, but the business depends on it. Onboarding a new developer takes weeks. Every change risks breaking something invisible. Technical debt compounds silently until a rewrite becomes the only option — and rewrites fail 70% of the time. The Concept Developer tool built on top of IBM Bob 2.0's multi-agent orchestration that transforms how teams approach legacy code.