pattern-matching

SKILL.md

Use this skill when working with discriminated unions, ADTs, conditional logic, or any type that uses tag discrimination. Pattern matching provides exhaustive, type-safe alternatives to imperative conditionals.

When pattern matching involves non-deterministic operations, use Effect services.

Your pattern matching implementations should be exhaustive, type-safe, declarative, and testable.

Master Effect pattern matching using Data.TaggedEnum, $match, $is, Match.typeTags, and Effect.match. Avoid manual _tag checks and Effect.either patterns. Use this skill when working with discriminated unions, ADTs, or conditional logic based on tagged types. Source: front-depiction/claude-setup.

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