domains / families / software-engineering / fp-errors

fp-errors

authentic

Stop throwing everywhere - handle errors as values using Either and TaskEither for cleaner, more predictable code

When to use

• You need to replace exception-heavy code with `Either` or `TaskEither`.
• The task involves validation, domain errors, or clearer error contracts in TypeScript.
• You want pragmatic fp-ts error-handling guidance for real application code.

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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