概要
Document Co-Authoring is a specialized Claude Code Skill that acts as a collaborative partner for creating structured content. It moves users through a rigorous process of context gathering, section-by-section brainstorming, and iterative refinement. By concluding with a dedicated 'Reader Testing' phase to catch blind spots, this skill ensures that technical specs, PRDs, and proposals are not just written, but engineered for clarity and stakeholder impact.