kamae-ts

Adversarial code review of server-side TypeScript for adherence to the kamae principles (discriminated unions, branded types, Result error handling, boundary validation, PII protection). TRIGGER when: reviewing a pull request, audit, or quality check of TypeScript server-side code involving domain models, repositories, use cases, business logic, or boundary code. SKIP: frontend code review, infrastructure-as-code review, test-only review, code review unrelated to domain logic.

Kamae (構え) — robust server-side TypeScript design. Functional domain modeling with discriminated unions, pure state transitions, Result types, schema-validated boundaries, and PII protection. TRIGGER when: writing TypeScript domain models, use cases, repositories, state transitions, error handling, boundary validation, or PII handling on the server side; designing types for business logic; implementing entity/value-object semantics in TS. SKIP: frontend React/Vue components, browser code, build tooling, code generation scripts, pure infrastructure-as-code; code unrelated to domain logic.