diff --git a/internal/domain/domain.go b/internal/domain/domain.go
index 92df9f7..70daa42 100644
--- a/internal/domain/domain.go
+++ b/internal/domain/domain.go
@@ -226,6 +226,14 @@ const (
 	UploadErrInterrupted UploadErrorKind = "interrupted"
 	// UploadErrTranscriptionFailed: every configured transcription endpoint failed.
 	UploadErrTranscriptionFailed UploadErrorKind = "transcription_failed"
+	// UploadErrTooLong: the audio, once converted, is longer than the limit. The limit is
+	// first checked against the file's header, which a hostile or damaged file can lie
+	// about (ADR-035 review).
+	UploadErrTooLong UploadErrorKind = "audio_too_long"
+	// UploadErrIncomplete: the audio, once converted, ends far earlier than the file
+	// claimed: a truncated recording that would otherwise give a partial transcript with
+	// no warning.
+	UploadErrIncomplete UploadErrorKind = "audio_incomplete"
 )
 
 // UploadedTranscript is a user's PRIVATE transcript of audio they uploaded. It is