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aidd-error-causes

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Use the error-causes library for structured error handling in JavaScript/TypeScript. Use when throwing errors, catching errors, defining error types, or implementing error routing.

ai/skills/aidd-error-causes/SKILL.md

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# Error Causes Rule

Use the `error-causes` library for all error handling in JavaScript/TypeScript code to enable structured error handling with named causes.

## Why Error Causes?

- Enables structured error handling with named causes instead of relying on `instanceof` checks
- Works across memory realms (e.g., iframes) unlike `instanceof`
- Provides consistent error metadata (name, code, message, cause)
- Makes error handling explicit and self-documenting
- Allows for automatic error routing based on error names

## Import Statement