What problem does it solve? Large features often turn into sprawling, unreviewable changes that break tests and stall in review. This Skill enforces a disciplined workflow where every piece of work is broken into small, known-good increments that keep the codebase green and mergeable at all times. ## Core Features & Use Cases - Increment Planning: Creates self-contained plan files in a plans/ directory, each with goals, acceptance criteria, and one-sentence steps that fit in a single commit. - TDD Enforcement: Every step follows a strict RED-GREEN-MUTATE-KILL MUTANTS-REFACTOR cycle, including mutation testing reports before any commit. - Approval Gates: Requires explicit human confirmation of acceptance criteria before code is written and explicit approval before any commit. - Use Case: When starting a new feature like email validation, use this Skill to draft a plan file, get it approved, then execute each step with failing tests first, mutation reports, and small reviewable PRs. ## Quick Start Ask the AI to create a plan in the plans directory for your next feature, broken into small test-driven steps with clear acceptance criteria.