Harness-engineering ts-discriminated-unions

name: ts-discriminated-unions version: "1.0.0" description: Model mutually exclusive states with discriminated unions and exhaustive narrowing stability: static cognitive_mode: advisory-guide type: knowledge tier: 3 triggers:

• manual platforms:
• claude-code
• gemini-cli
• cursor
• codex tools: [] paths:
• "**/*.ts"
• "**/*.tsx"
• "tsconfig.json"
• "tsconfig.*.json" related_skills:
• ts-type-guards
• ts-conditional-types
• ts-error-handling-types stack_signals:
• typescript keywords:
• discriminated-unions
• narrowing
• exhaustive-check
• never
• kind-field metadata: author: community upstream: typescriptlang.org/docs/handbook/2/narrowing.html state: persistent: false files: [] depends_on: []