What problem does it solve? Codebases accumulate dead code, unused abstractions, speculative features, and copy-pasted components that increase maintenance cost. This Skill provides a systematic contract for finding and safely deleting that entropy, with a bias toward deletion over abstraction. ## Core Features & Use Cases - Dead Code Detection: Identifies unused tRPC procedures, dead monorepo packages, over-parameterized Drizzle schemas, redundant types, and valueless barrel exports, with optional fallow static-analysis integration. - Safe Deletion Rules: Enforces verification of dynamic callers (createCaller, raw SQL, string interpolation) before deletion, plus PAGNI exceptions for infrastructure that is expensive to retrofit. - Ranked Cut Report: Outputs findings in a cut-format ranked biggest-cut-first with delete/stdlib/native/yagni/shrink tags and a net line-count summary. - Use Case: During a code review of a T3 Turbo monorepo that has grown messy, run a repo-wide sweep to find unused tRPC procedures and single-consumer packages, then delete them after verifying no dynamic callers exist. ## Quick Start Ask the agent to audit this codebase for dead code and over-engineering, then report the biggest cuts first.