zopu-code/repos/effect-smol/.changeset/schema-defaults-issue-channel.md

effect

effect
patch

Allow Schema constructor and decoding defaults to fail with SchemaError.

The Effect passed to Schema.withConstructorDefault, Schema.withDecodingDefault, Schema.withDecodingDefaultKey, Schema.withDecodingDefaultType, and Schema.withDecodingDefaultTypeKey now accepts SchemaError in its error channel. When a default fails, the parser unwraps the underlying SchemaIssue.Issue and propagates it as a parse failure with the surrounding path attached. This makes it easy to use another schema's makeEffect / decode* as the default value.