Handling Optional Nested Struct Validation Errors in Effect Typescript

import { Schema } from "effect"

const Category = Schema.Struct({
  type: Schema.String.pipe(Schema.minLength(10))
})
const Person = Schema.Struct({
  name: Schema.String.pipe(Schema.minLength(5)),
  age: Schema.Number.pipe(Schema.filter(value => value >= 18 || "Age should be greater than 18")),
  category: Schema.optional(Category)
})
const data = { name: "", age: 5, category: { type: "" } }
console.log(
  Schema.decodeUnknown(Person, { errors: "all", onExcessProperty: "ignore" })(data)
)

// result
{
  "_id": "Either",
  "_tag": "Left",
  "left": {
    "_id": "ParseError",
    "message": "{ readonly name: minLength(5); readonly age: { number | filter }; readonly category?: { readonly type: minLength(10) } | undefined }\n├─ [\"name\"]\n│  └─ minLength(5)\n│     └─ Predicate refinement failure\n│        └─ Expected a string at least 5 character(s) long, actual \"\"\n├─ [\"age\"]\n│  └─ { number | filter }\n│     └─ Predicate refinement failure\n│        └─ Age should be greater than 18\n└─ [\"category\"]\n   └─ { readonly type: minLength(10) } | undefined\n      ├─ { readonly type: minLength(10) }\n      │  └─ [\"type\"]\n      │     └─ minLength(10)\n      │        └─ Predicate refinement failure\n      │           └─ Expected a string at least 10 character(s) long, actual \"\"\n      └─ Expected undefined, actual {\"type\":\"\"}"
  }
}