What problem does it solve? Codebases accumulate shallow modules whose interfaces are nearly as complex as their implementations, making them hard to test and navigate. This Skill surfaces that architectural friction and proposes concrete deepening refactors grounded in a shared design vocabulary. ## Core Features & Use Cases - Hot-spot-driven exploration: Scopes the scan using git history and user direction, then applies the deletion test to find shallow modules, leaky seams, and untestable code. - Visual HTML report: Renders candidates as a self-contained HTML file in the OS temp directory using Tailwind and Mermaid via CDN, with before/after diagrams, recommendation-strength badges, and ADR conflict callouts. - Guided decision loop: After the user picks a candidate, it grills through constraints and dependencies, updates the domain glossary in CONTEXT.md, and offers ADRs for load-bearing rejections. - Use Case: Run it on a service whose order intake logic is scattered across six thin wrappers; get a report showing how to collapse them into one deep module with a single testable interface. ## Quick Start Ask the assistant to review this codebase for architecture improvements and show the deepening candidates as an HTML report.
