Find architectural deepening opportunities in existing code — shallow modules to make deep, tightly-coupled modules to consolidate, seams worth adding for testability and AI-navigability. Judges depth with the deletion test and reports evidence-backed candidates ranked by recommendation strength, never touching code until you pick one. Optionally reads a domain glossary (CONTEXT.md) and decision records (docs/adr/) if the repo has them. Use for: 'improve the architecture', 'find refactoring opportunities', 'this module feels shallow', 'make X more testable', 'consolidate these modules', 'reduce coupling'. Triggers on: 'improve codebase', 'refactor opportunities', 'archite…
