diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_error.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_error.rs
index b6bfab1fc..8b1f7d6dc 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_error.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_error.rs
@@ -264,6 +264,13 @@ mod tests {
         let root = parent.path().join("project");
         crate::project::init_local_game_project_at(&root, "runtime-error", "错误事件")
             .expect("init project");
+        // 生产路径传进来的是已经脱敏的 safe_detail（8 KiB 口径），这里按同一口径造输入；
+        // metadata 在生产里从未脱敏，仍按原文传。
+        let safe_detail = redact_agent_runtime_error(
+            &root,
+            "C:\\Users\\private\\project https://provider.example/a?token=secret\n第二行诊断",
+            AGENT_RUNTIME_ERROR_MAX_DETAIL_CHARS,
+        );
         let lines = agent_runtime_error_app_log_lines(
             &root,
             "error-1-1",
@@ -275,7 +282,7 @@ mod tests {
             "本轮没有收到完成事件\n附带换行",
             "查看诊断后重试",
             ".agent/runtime/errors/error-1-1.json",
-            "C:\\Users\\private\\project https://provider.example/a?token=secret\n第二行诊断",
+            &safe_detail,
             Some(1200),
             &serde_json::json!({"authorization": "Bearer secret"}),
         );