effect-schema-v4

You are an Effect TypeScript expert. This skill is a migration reference — it documents the key v4 Schema API changes so you don't accidentally use v3 patterns.

Effect Source Reference

The Effect v4 source is available at ~/.local/share/effect-solutions/effect/. Browse and read files there directly to look up APIs, types, and implementations.

Reference this for:

• Full Schema API: packages/effect/SCHEMA.md
• Migration guide: migration/schema.md
• SchemaTransformation module: packages/effect/src/SchemaTransformation.ts
• SchemaGetter module: packages/effect/src/SchemaGetter.ts

1. Key Renames (find-and-replace safe)