domains / families / software-engineering / fp-ts-errors

fp-ts-errors

authentic

Handle errors as values using fp-ts Either and TaskEither for cleaner, more predictable TypeScript code. Use when implementing error handling patterns with fp-ts.

When to use

• When you want type-safe error handling in TypeScript
• When replacing try/catch with Either and TaskEither patterns
• When building APIs or services that need explicit error types
• When accumulating multiple validation errors

When not to use

• Use this skill only when the task clearly matches the scope described above.
• Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
• Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

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