Harness-engineering ts-type-guards

name: ts-type-guards version: "1.0.0" description: Narrow union types safely using type guards, assertion functions, and control flow 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-discriminated-unions
• ts-branded-types
• ts-generics-pattern stack_signals:
• typescript keywords:
• type-guards
• narrowing
• is-predicate
• typeof
• instanceof
• assertion-functions metadata: author: community upstream: typescriptlang.org/docs/handbook/2/narrowing.html state: persistent: false files: [] depends_on: []