diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/claude_code_cli.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/claude_code_cli.rs
index 1b56483b5..84d61771d 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/claude_code_cli.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/claude_code_cli.rs
@@ -212,7 +212,7 @@ async fn run_sidecar_turn(
         .take()
         .ok_or_else(|| "Claude Agent SDK sidecar stderr 未建立".to_string())?;
     let stderr_task = tokio::spawn(read_capped(stderr, CLAUDE_CODE_OUTPUT_MAX_BYTES));
-    let result = tokio::time::timeout(Duration::from_millis(timeout_ms.max(1)), async {
+    let result = match tokio::time::timeout(Duration::from_millis(timeout_ms.max(1)), async {
         let mut lines = BufReader::new(stdout).lines();
         let mut events = Vec::new();
         let mut terminal = None;
@@ -257,7 +257,21 @@ async fn run_sidecar_turn(
         Ok(SidecarTurnResult { events, result })
     })
     .await
-    .map_err(|_| "Claude Agent SDK sidecar 回合超时".to_string())??;
+    {
+        Ok(result) => result?,
+        Err(_) => {
+            let detail = stderr_task
+                .await
+                .ok()
+                .and_then(Result::ok)
+                .and_then(|bytes| String::from_utf8(bytes).ok())
+                .map(|value| value.trim().chars().take(512).collect::<String>())
+                .filter(|value| !value.is_empty())
+                .map(|value| format!("：{value}"))
+                .unwrap_or_default();
+            return Err(format!("Claude Agent SDK sidecar 回合超时{detail}"));
+        }
+    };
     let _ = stderr_task.await;
     Ok(result)
 }
@@ -317,6 +331,14 @@ pub(crate) fn game_creator_claude_code_cli_route_error(
     if model.is_empty() || model.chars().count() > CLAUDE_CODE_MODEL_MAX_CHARS {
         return Some("cc 模式需要有效的 Claude Code 模型标识".to_string());
     }
+    if llm.api_key.trim().is_empty()
+        && !llm.custom_enabled
+        && std::env::var_os("ANTHROPIC_API_KEY").is_none()
+        && std::env::var_os("ANTHROPIC_AUTH_TOKEN").is_none()
+        && crate::platform_session::current_platform_session().is_none()
+    {
+        return Some("cc 模式需要先登录陶泥儿账号".to_string());
+    }
     None
 }