domain-modeling

Value: Communication -- domain types make code speak the language of the business. They turn implicit knowledge into explicit, compiler-verified contracts that humans and AI can reason about.

Teaches how to build rich domain models that prevent bugs at compile time rather than catching them at runtime. Covers primitive obsession detection, parse-don't-validate, making invalid states unrepresentable, and semantic type design. Independently useful for any code review or design task, and

provides the principles that domain review checks for in the TDD cycle.

领域建模原则：解析而不验证、使无效状态不可表示、原始痴迷检测、语义类型和领域否决权。在设计类型、审查代码的域完整性或在 TDD 周期中需要域审查时激活。 来源：jwilger/agent-skills。