version: "1.0.1" name: typescript-strict description: "Use strict TypeScript patterns: Use when maintaining consistent code style. Style category skill." metadata: category: Style priority: high is-built-in: true session-guardian-id: builtin_typescript_strict

TypeScript Strict

Use strict TypeScript patterns:

• Use explicit types (avoid 'any')
• Use 'unknown' for external data and validate
• Handle null/undefined properly with optional chaining
• Use type guards and type narrowing
• Prefer interfaces for object shapes