What problem does it solve? Writing effective agent skills is hard because untested documentation often fails under real-world pressure, and authors cannot know if a skill actually changes agent behavior without observing baseline failures first. ## Core Features & Use Cases - TDD-Based Skill Authoring: Applies the RED-GREEN-REFACTOR cycle to documentation by running baseline pressure scenarios with subagents before writing any skill content. - Skill Discovery Optimization: Provides rules for writing descriptions, keywords, and naming so future agents can find and trigger the right skill. - Rationalization Bulletproofing: Supplies rationalization tables, red flag lists, and persuasion principles to close loopholes agents exploit under time, sunk-cost, or authority pressure. - Use Case: When creating a new discipline-enforcing skill like mandatory code review, run pressure scenarios without the skill, document the agent's excuses verbatim, then write minimal guidance that counters those exact rationalizations and re-test until compliant. ## Quick Start Ask the agent to create a new skill following the writing-skills TDD process, starting with a baseline pressure scenario before drafting any SKILL.md content.