diff --git a/apps/ai-game-creator-shell/scripts/start-tauri-dev.mjs b/apps/ai-game-creator-shell/scripts/start-tauri-dev.mjs
index 0ce7e6a2b..3ab0f2ced 100644
--- a/apps/ai-game-creator-shell/scripts/start-tauri-dev.mjs
+++ b/apps/ai-game-creator-shell/scripts/start-tauri-dev.mjs
@@ -22,7 +22,6 @@ const appRoot = fileURLToPath(new URL('..', import.meta.url));
 const repoRoot = resolve(appRoot, '../..');
 const tauriCliPath = resolve(repoRoot, 'node_modules/@tauri-apps/cli/tauri.js');
 const AGC_DESIGN_DEBUG_ENV = 'GENARRATIVE_AGC_DESIGN_DEBUG';
-const AGC_DESIGN_DEBUG_VITE_ENV = 'VITE_GENARRATIVE_AGC_DESIGN_DEBUG';
 const designDebugEnabled =
   process.env[AGC_DESIGN_DEBUG_ENV]?.trim() === '0' ? '0' : '1';
 
@@ -137,7 +136,6 @@ async function runTauriDev(
       env: {
         ...withAgcDevEndpointEnv(endpoint),
         [AGC_DESIGN_DEBUG_ENV]: designDebugEnabled,
-        [AGC_DESIGN_DEBUG_VITE_ENV]: designDebugEnabled,
       },
     });
     const childResult = waitForCli(child);
@@ -191,7 +189,6 @@ async function prepareFrontendDev(endpoint, { onChild, signal }) {
       cwd: repoRoot,
       env: {
         ...withAgcDevEndpointEnv(endpoint),
-        [AGC_DESIGN_DEBUG_VITE_ENV]: designDebugEnabled,
       },
     },
   );
diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/design_runtime.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/design_runtime.rs
index 2d24a4997..38e7a2f8a 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/design_runtime.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/design_runtime.rs
@@ -606,11 +606,7 @@ fn build_design_request(
 
 // 调试队列只接收副本，写盘慢或失败时丢弃，不参与会话恢复。
 fn design_debug(root: &Path, kind: &str, data: Value) {
-    if std::env::var("GENARRATIVE_AGC_DESIGN_DEBUG")
-        .ok()
-        .as_deref()
-        != Some("1")
-    {
+    if !design_debug_enabled() {
         return;
     }
     type Entry = (PathBuf, Value);
@@ -1133,6 +1129,18 @@ fn resolve_design_runtime_mode(root: &Path) -> Result<Option<DesignRuntimeMode>,
     }))
 }
 
+fn design_debug_enabled() -> bool {
+    std::env::var("GENARRATIVE_AGC_DESIGN_DEBUG")
+        .ok()
+        .as_deref()
+        == Some("1")
+}
+
+#[tauri::command]
+pub(crate) fn is_design_agent_debug_enabled() -> bool {
+    cfg!(debug_assertions) && design_debug_enabled()
+}
+
 #[tauri::command]
 pub(crate) fn set_design_agent_runtime_mode(
     project_path: String,
@@ -1159,12 +1167,7 @@ pub(crate) fn debug_fast_forward_design_session(
     project_path: String,
     target_phase: String,
 ) -> Result<DesignRuntimeMode, String> {
-    if !cfg!(debug_assertions)
-        || std::env::var("GENARRATIVE_AGC_DESIGN_DEBUG")
-            .ok()
-            .as_deref()
-            != Some("1")
-    {
+    if !is_design_agent_debug_enabled() {
         return Err("策划 Agent 快速推进仅可用于 Debug 构建".to_string());
     }
     let root = Path::new(project_path.trim());
diff --git a/apps/ai-game-creator-shell/src-tauri/src/main.rs b/apps/ai-game-creator-shell/src-tauri/src/main.rs
index 5d93e78bc..2f2f5b7e2 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/main.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/main.rs
@@ -2672,6 +2672,7 @@ fn main() {
             hydrate_design_agent_session,
             reset_design_agent_session,
             get_design_agent_runtime_mode,
+            is_design_agent_debug_enabled,
             set_design_agent_runtime_mode,
             debug_fast_forward_design_session,
             continue_design_agent_session,
diff --git a/apps/ai-game-creator-shell/src/features/project-workspace/DesignWorkspacePanel.tsx b/apps/ai-game-creator-shell/src/features/project-workspace/DesignWorkspacePanel.tsx
index 53d01cbe1..c651a5764 100644
--- a/apps/ai-game-creator-shell/src/features/project-workspace/DesignWorkspacePanel.tsx
+++ b/apps/ai-game-creator-shell/src/features/project-workspace/DesignWorkspacePanel.tsx
@@ -185,6 +185,7 @@ export function DesignWorkspacePanel({
   const [loading, setLoading] = useState(true);
   const [previewLoading, setPreviewLoading] = useState(false);
   const [debugPreparing, setDebugPreparing] = useState(false);
+  const [designDebugEnabled, setDesignDebugEnabled] = useState(false);
   const [error, setError] = useState('');
   const [expandedPaths, setExpandedPaths] = useState<Set<string>>(
     () => new Set(),
@@ -264,6 +265,16 @@ export function DesignWorkspacePanel({
     void loadWorkspace({ showLoading: true, hydrateSession: true });
   }, [loadWorkspace]);
 
+  useEffect(() => {
+    const invoke = resolveTauriInvoke();
+    if (!invoke) {
+      return;
+    }
+    void invoke<boolean>('is_design_agent_debug_enabled')
+      .then(setDesignDebugEnabled)
+      .catch(() => setDesignDebugEnabled(false));
+  }, []);
+
   useEffect(() => {
     if (!canSubscribeTauriEvents() || !projectPath.trim()) {
       return;
@@ -360,7 +371,7 @@ export function DesignWorkspacePanel({
           <p>Agent 产生的策划文档会显示在这里。</p>
         </div>
         <div className="design-workspace-panel__actions">
-          {import.meta.env.VITE_GENARRATIVE_AGC_DESIGN_DEBUG === '1' ? (
+          {designDebugEnabled ? (
             <button
               type="button"
               className="design-workspace-panel__refresh"
diff --git a/apps/ai-game-creator-shell/tests/designWorkspaceDebug.test.tsx b/apps/ai-game-creator-shell/tests/designWorkspaceDebug.test.tsx
index f5198b50e..bc5db7f75 100644
--- a/apps/ai-game-creator-shell/tests/designWorkspaceDebug.test.tsx
+++ b/apps/ai-game-creator-shell/tests/designWorkspaceDebug.test.tsx
@@ -23,9 +23,11 @@ afterEach(() => {
 });
 
 it('prepares debug fixtures from the header and refreshes the phase and files without a manual refresh', async () => {
-  vi.stubEnv('VITE_GENARRATIVE_AGC_DESIGN_DEBUG', '1');
   let prepared = false;
   const invoke = vi.fn(async (command: string) => {
+    if (command === 'is_design_agent_debug_enabled') {
+      return true;
+    }
     if (command === 'debug_fast_forward_design_session') {
       prepared = true;
       return { activeRuntime: 'design' };
diff --git a/docs/technical/【技术方案】策划Agent生产迁移与工作区浏览-2026-09-10.md b/docs/technical/【技术方案】策划Agent生产迁移与工作区浏览-2026-09-10.md
index 956aaa46f..ce891e8fc 100644
--- a/docs/technical/【技术方案】策划Agent生产迁移与工作区浏览-2026-09-10.md
+++ b/docs/technical/【技术方案】策划Agent生产迁移与工作区浏览-2026-09-10.md
@@ -344,7 +344,7 @@ UI 使用“批准”和“继续修改”两个文字按钮，分别配 Lucide
 
 项目运行模式通过 `.agent/runtime-mode.json` 持久化。新建策划项目在进入工作台前写入 `design`；“做成游戏”先登记 `design_artifacts` 中尚未登记或登记信息已变化的策划产物，若 manifest 实际发生变化则在同一项目写锁范围内推进一次项目 revision，再写入 `game`。重复切换不重复登记或推进 revision。重新打开项目时通过 `get_design_agent_runtime_mode` 读取模式，完成后一次性挂载对应工作台，不能先挂载 GameAgent 再切回策划。旧项目缺少模式文件但存在策划会话时按 `design` 恢复；明确的 `game` 标记优先于残留策划会话。无模式也无策划会话的项目仍使用游戏工作台。
 
-开发构建的策划工作区页头在“刷新”旁提供“快速准备做成游戏测试”按钮。该入口与策划 Debug 日志共用 `GENARRATIVE_AGC_DESIGN_DEBUG=1` 开关：开关未启用时按钮不显示，命令也不可执行。入口仅进行本地 fixture 和会话状态写入，不调用 Provider；完成后自动刷新文件树与阶段，通过 `design-agent-update` 状态事件同步右侧审批/阶段操作区。随后仍需点击正常的“做成游戏”按钮执行资产登记与运行时切换。
+开发构建的策划工作区页头在“刷新”旁提供“快速准备做成游戏测试”按钮。策划 Debug 日志和该入口共用运行时环境变量 `GENARRATIVE_AGC_DESIGN_DEBUG=1`；前端通过 Tauri 查询当前构建是否具备 Debug 入口，只有 Debug 构建且变量启用时显示按钮，命令也不可执行。入口仅进行本地 fixture 和会话状态写入，不调用 Provider；完成后自动刷新文件树与阶段，通过 `design-agent-update` 状态事件同步右侧审批/阶段操作区。随后仍需点击正常的“做成游戏”按钮执行资产登记与运行时切换。
 
 ## 15. 策划 Agent reasoning 展示