diff --git a/crates/cli/src/commands/mod.rs b/crates/cli/src/commands/mod.rs
index 1c9532f..8d01c55 100644
--- a/crates/cli/src/commands/mod.rs
+++ b/crates/cli/src/commands/mod.rs
@@ -410,6 +410,34 @@ mod tests {
         assert!(resolved.json);
     }
 
+    #[test]
+    fn explicit_human_overrides_structured_default() {
+        let options = GlobalOutputOptions {
+            format: Some(OutputFormat::Human),
+            json: false,
+            no_color: false,
+            no_progress: false,
+            quiet: false,
+        };
+
+        let resolved = options.resolve(OutputBehavior::StructuredDefault);
+        assert!(!resolved.json);
+    }
+
+    #[test]
+    fn explicit_auto_overrides_human_default() {
+        let options = GlobalOutputOptions {
+            format: Some(OutputFormat::Auto),
+            json: false,
+            no_color: false,
+            no_progress: false,
+            quiet: false,
+        };
+
+        let resolved = options.resolve(OutputBehavior::HumanDefault);
+        assert_eq!(resolved.json, !std::io::stdout().is_terminal());
+    }
+
     #[test]
     fn cli_accepts_bucket_cors_subcommand() {
         let cli = Cli::try_parse_from(["rc", "bucket", "cors", "list", "local/my-bucket"])