What problem does it solve? AI agents often over-engineer tasks by adding unnecessary abstractions, fallback paths, dependencies, and unrelated refactors. This Skill enforces a minimal-change discipline so modifications stay small, correct, and easy to review. ## Core Features & Use Cases - Decision Ladder: Before adding any code, rule, helper, or abstraction, it checks whether existing implementations, standard libraries, platform capabilities, or installed dependencies already suffice. - Change Budget & Safety Boundaries: Requires declaring the minimal impact surface, acceptance checks, and files intentionally left untouched; forbids swallowing exceptions, silent degradation, and masking root causes. - Output Contract: Reports the modified surface, reused implementations, verification evidence, deliberately unchanged scope, and residual risks. - Use Case: When asked to fix a parser bug, the agent changes only the loop boundary, adds one regression test, and reports exact test results instead of rewriting the parser. ## Quick Start Use the minimal-implementation skill to fix this bug with the smallest correct change and show me the verification evidence.