What problem does it solve? It prevents unfinished or unsafe work from being declared done by enforcing a mandatory pre-delivery review covering functionality, regressions, security, complexity, and performance before responding to the user. ## Core Features & Use Cases - Five-dimension checklist: Verifies the feature works (golden path and edge cases), no regressions in callers and legacy fallbacks, no security flaws (IDOR, mass assignment, missing auth middleware), justified complexity, and no performance issues (N+1 queries, costly appends). - Codebase-specific checks: Encodes Toollab conventions such as school_id scoping, sanctum middleware, batch UserRole loading, and preserved legacy fields like teacher_name and current_school_role. - Standardized reporting format: Produces a short factual summary of what was done, what was verified, what was not tested, and what was cleaned up. - Use Case: After implementing a new Laravel endpoint and its Nuxt frontend page, invoke this checklist to grep for all callers, confirm middleware coverage, and report exactly which cases were tested before declaring the task complete. ## Quick Start Run the delivery checklist on the work just completed and report what was verified and what remains untested.