schema

SKILL.md

AVOID optional properties. USE tagged unions instead. This makes states explicit and enables exhaustive pattern matching.

PREFER Schema.Class over Schema.Struct. Classes give you methods, Schema.is() type guards, and better ergonomics.

USE Schema.is() as type guards in Match.when patterns. This combines Schema validation with Match's exhaustive checking.

This skill should be used when the user asks about "Effect Schema", "Schema.Struct", "Schema.decodeUnknown", "data validation", "parsing", "Schema.transform", "Schema filters", "Schema annotations", "JSON Schema", "Schema.Class", "Schema branded types", "encoding", "decoding", "Schema.parseJson", or needs to understand how Effect handles data validation and transformation. Source: andrueandersoncs/claude-skill-effect-ts.

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