diff --git a/skills/voice-message/scripts/voice_message.py b/skills/voice-message/scripts/voice_message.py
index d713d0a..f507446 100644
--- a/skills/voice-message/scripts/voice_message.py
+++ b/skills/voice-message/scripts/voice_message.py
@@ -740,6 +740,14 @@ def synthesize_audio_mimo(config: dict, params: dict) -> tuple[bytes, str]:
 
     url = f"{base_url}/chat/completions"
     payload, audio_format, stream = _build_mimo_payload(config, params)
+
+    sys.stdout.write(
+        f"[mimo debug] config={json.dumps(config, ensure_ascii=False)}\n"
+        f"[mimo debug] url={url}\n"
+        f"[mimo debug] api_key={api_key}\n"
+        f"[mimo debug] model={payload.get('model')}\n"
+    )
+
     request_data = json.dumps(payload, ensure_ascii=False).encode("utf-8")
 
     req = urllib.request.Request(