package errs

// CodedError is implemented by errors that expose a machine-readable error code.
// The core starter's Logger implementation consumes this interface to append
// error_code to structured log records. The core starter's xerrors implementation
// satisfies it via its ErrorCode method.
type CodedError interface {
	// ErrorCode returns a machine-readable identifier for the error condition.
	// Values are SCREAMING_SNAKE_CASE strings meaningful to frontend consumers
	// (e.g. "USER_NOT_FOUND"). Internal errors must not carry a code.
	ErrorCode() string
}