Use whenever writing or editing code in any language and any repo, before writing the first line rather than as a cleanup pass. Enforces the house rules - zero code comments (no JSDoc, no why-narration, no section labels, no TODO prose), no em dashes anywhere including strings and commit messages, switch statements instead of if/else ladders, guard clauses instead of nested conditionals, and hard file-length limits with refactoring instead of growth.
