spec-design
基于实际代码与产品事实澄清新增或改变外部可见行为的需求。当用户提出新功能、公共 API、CLI、schema、用户流程变化，要求写 spec、梳理需求、挑战想法或定义验收契约，或者带来一句话需求、PRD、原型、Figma 链接或已有规格时使用。
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Files
- skills/spec-design/SKILL.md
- skills/spec-design/references/spec-template.md
- skills/spec-design/references/umbrella-template.md
- skills/spec-design/references/validation-contract-template.md
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