What problem does it solve? When you remove a hardcoded default, deprecated function, or config property, leftover references often survive in fallbacks, migrations, tests, and docs, causing subtle bugs and stale behavior. This Skill enforces an exhaustive sweep so no remnant of the removed pattern remains in any code path. ## Core Features & Use Cases - Pattern Derivation Guide: Maps a removed value to all its possible forms, including direct assignments, fallback operators (.get(), ??, ||), SQL defaults, string literals, backfills, and import references. - Seven-Step Sweep Procedure: Covers multi-variant grep searches, config and environment files, database schemas and migrations, documentation, test assertions, leftover imports, and a final CI verification run. - Use Case: After removing a hardcoded vault_id = 1 default from a Python/TypeScript app, run the sweep to catch surviving references like record.get("vault_id", "1"), DEFAULT 1 in a migration, and test assertions expecting the old value. ## Quick Start After removing a code pattern, ask the AI to run a post-removal sweep for all remaining references to that pattern across the backend, frontend, docs, and config files.
