parse-dont-validate

What problem does it solve?

This Skill helps developers avoid common pitfalls in input validation and data modeling by promoting a "parse, don't validate" approach, leading to more robust and maintainable code.

Core Features & Use Cases

• Type Safety: Transforms unstructured data into strongly-typed structures at system boundaries, making illegal states unrepresentable.
• Refactoring Guidance: Provides principles for improving data types, function signatures, error handling, and domain logic.
• Use Case: When reviewing code that uses numerous boolean flags for validation or handles loosely typed string data, this Skill can guide the refactoring towards a more type-safe and less error-prone design.

Quick Start

Use the parse-dont-validate skill to refactor a function that currently validates user input with boolean flags into one that uses discriminated unions.