diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ed3923..c7cb806 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -31,6 +31,7 @@
 - `OneLiner 会话 / 运行详情 / 治理控制面 / integrations / live-recorder` 这些固定接口也已经切成 live-first，请求失败才降级，不再先被陈旧 capability 表拦住。
 - 任务恢复链会优先真实调用 `/v2/explore/jobs/{job_id}/retry`，只有接口真的不存在时才回退到手动恢复模板。
 - `找对标 / 跟踪账号` 里一批已经失效的 “当前平台待接入” 按钮禁用与入口分支已删除，当前 active 平台都直接走真实路由，失败时再给真实反馈。
+- 工作台前端已经清掉浏览器 `alert` 弹窗，缺对象、权限不足、刷新失败和加载失败都会回到站内反馈，不再把用户从当前流程里打断出去。
 
 ### NAS 联调与回归
 
@@ -38,7 +39,7 @@
   - Web: `http://192.168.31.188:19192/`
   - Collector: `http://192.168.31.188:19193/healthz`
 - 当前基线通过：
-  - 前端测试 `60/60`
+  - 前端测试 `61/61`
   - `bash scripts/check_repo_baseline.sh`
   - `bash scripts/smoke_fnos_storyforge_lan.sh`
 
diff --git a/web/storyforge-web-v4/assets/app.js b/web/storyforge-web-v4/assets/app.js
index 8b3f66a..a18b543 100644
--- a/web/storyforge-web-v4/assets/app.js
+++ b/web/storyforge-web-v4/assets/app.js
@@ -9201,7 +9201,8 @@ async function openPlatformAgentDetailAction(platform) {
   const normalizedPlatform = normalizePlatformValue(platform, getPreferredPlatform());
   const profile = safeArray(appState.platformAgents).find((item) => item.platform === normalizedPlatform) || null;
   if (!profile) {
-    alert("没有找到这个平台 Agent。");
+    rememberAction("平台 Agent 不存在", "当前没有找到这条平台 Agent，请先刷新当前页面。", "orange");
+    renderAll();
     return;
   }
   const [memoriesPayload, skillsPayload] = await Promise.all([
@@ -9379,7 +9380,8 @@ function openActionRegistryEditAction(actionKey) {
   const project = requireSelectedProject();
   const actionDef = safeArray(appState.onelinerActionRegistry).find((item) => item.action_key === actionKey) || null;
   if (!actionDef) {
-    alert("没有找到这条动作定义。");
+    rememberAction("动作定义不存在", "当前没有找到这条 OneLiner 动作定义，请先刷新当前页面。", "orange");
+    renderAll();
     return;
   }
   openActionModal({
@@ -9495,7 +9497,8 @@ function openCreateAssistantAction() {
 function openEditAssistantAction(assistantId = "") {
   const assistant = safeArray(appState.dashboard?.assistants).find((item) => item.id === assistantId) || getSelectedAssistant();
   if (!assistant) {
-    alert("请先选择一个 Agent");
+    rememberAction("请先选择 Agent", "当前还没有可编辑的 Agent，先在项目里选择或创建一个。", "orange");
+    renderAll();
     return;
   }
   const modelOptions = getModelOptions();
@@ -9718,12 +9721,14 @@ async function scanAdminOpsAction() {
 
 function openAdminIncidentReviewAction(incidentId) {
   if (!isSuperAdmin()) {
-    alert("只有平台管理者才能审计处理故障事件。");
+    rememberAction("权限不足", "只有平台管理者才能审计处理故障事件。", "orange");
+    renderAll();
     return;
   }
   const incident = safeArray(appState.adminOpsOverview?.incidents).find((item) => item.id === incidentId);
   if (!incident) {
-    alert("没有找到这条故障事件。");
+    rememberAction("故障事件不存在", "当前没有找到这条故障事件，请先重新扫描。", "orange");
+    renderAll();
     return;
   }
   openActionModal({
@@ -9776,12 +9781,14 @@ function openAdminIncidentReviewAction(incidentId) {
 
 function openAdminRepairPlanAction(incidentId) {
   if (!isSuperAdmin()) {
-    alert("只有平台管理者才能生成修复计划。");
+    rememberAction("权限不足", "只有平台管理者才能生成修复计划。", "orange");
+    renderAll();
     return;
   }
   const incident = safeArray(appState.adminOpsOverview?.incidents).find((item) => item.id === incidentId);
   if (!incident) {
-    alert("没有找到这条故障事件。");
+    rememberAction("故障事件不存在", "当前没有找到这条故障事件，请先重新扫描。", "orange");
+    renderAll();
     return;
   }
   openActionModal({
@@ -9810,12 +9817,14 @@ function openAdminRepairPlanAction(incidentId) {
 
 function openAdminFixRunDetailAction(runId) {
   if (!isSuperAdmin()) {
-    alert("只有平台管理者才能查看修复计划。");
+    rememberAction("权限不足", "只有平台管理者才能查看修复计划。", "orange");
+    renderAll();
     return;
   }
   const run = safeArray(appState.adminFixRuns.length ? appState.adminFixRuns : appState.adminOpsOverview?.recent_fix_runs).find((item) => item.id === runId);
   if (!run) {
-    alert("没有找到这条修复计划。");
+    rememberAction("修复计划不存在", "当前没有找到这条修复计划，请先刷新管理员配置台。", "orange");
+    renderAll();
     return;
   }
   openActionModal({
@@ -9857,12 +9866,14 @@ function openAdminFixRunDetailAction(runId) {
 
 function openAdminFixRunAuditAction(runId) {
   if (!isSuperAdmin()) {
-    alert("只有平台管理者才能审计修复计划。");
+    rememberAction("权限不足", "只有平台管理者才能审计修复计划。", "orange");
+    renderAll();
     return;
   }
   const run = safeArray(appState.adminFixRuns.length ? appState.adminFixRuns : appState.adminOpsOverview?.recent_fix_runs).find((item) => item.id === runId);
   if (!run) {
-    alert("没有找到这条修复计划。");
+    rememberAction("修复计划不存在", "当前没有找到这条修复计划，请先刷新管理员配置台。", "orange");
+    renderAll();
     return;
   }
   openActionModal({
@@ -10033,7 +10044,8 @@ function openRecoverJobAction(jobId) {
   const job = safeArray(appState.dashboard?.recent_jobs).find((item) => item.id === jobId)
     || (appState.lastJobDetail?.job?.id === jobId ? appState.lastJobDetail.job : null);
   if (!job) {
-    alert("没有找到这条任务。");
+    rememberAction("任务不存在", "当前没有找到这条任务，请先刷新生产中心。", "orange");
+    renderAll();
     return;
   }
   const recovery = getJobRecoverability(job);
@@ -10350,7 +10362,8 @@ function openLiveRecorderCreateAction() {
 function openLiveRecorderSourceAction(sourceId) {
   const source = safeArray(appState.liveRecorderSources).find((item) => item.id === sourceId);
   if (!source) {
-    alert("没有找到这条录制源。");
+    rememberAction("录制源不存在", "当前没有找到这条录制源，请先刷新录制维护。", "orange");
+    renderAll();
     return;
   }
   const currentProject = getSelectedProject() || safeArray(appState.dashboard?.projects).find((item) => item.id === source.project_id) || appState.dashboard?.projects?.[0] || null;
@@ -10435,7 +10448,8 @@ function openLiveRecorderImportAction() {
 async function toggleLiveRecorderSourceAction(sourceId, nextEnabled) {
   const source = safeArray(appState.liveRecorderSources).find((item) => item.id === sourceId);
   if (!source) {
-    alert("没有找到这条录制源。");
+    rememberAction("录制源不存在", "当前没有找到这条录制源，请先刷新录制维护。", "orange");
+    renderAll();
     return;
   }
   setBusy(true, nextEnabled ? "正在启用录制源..." : "正在停用录制源...");
@@ -10456,7 +10470,8 @@ async function toggleLiveRecorderSourceAction(sourceId, nextEnabled) {
 async function deleteLiveRecorderSourceAction(sourceId) {
   const source = safeArray(appState.liveRecorderSources).find((item) => item.id === sourceId);
   if (!source) {
-    alert("没有找到这条录制源。");
+    rememberAction("录制源不存在", "当前没有找到这条录制源，请先刷新录制维护。", "orange");
+    renderAll();
     return;
   }
   if (!window.confirm(`确认删除「${source.title || source.source_url || "录制源"}」吗？删除后需要重新导入。`)) {
@@ -10660,7 +10675,6 @@ document.addEventListener("click", async (event) => {
       const reason = action.dataset.disabledReason || action.title || "当前动作暂不可用";
       rememberAction("动作已拦截", reason, "orange");
       renderAll();
-      alert(reason);
       return;
     }
     if (name === "auth-refresh" || name === "refresh-data") {
@@ -10678,7 +10692,7 @@ document.addEventListener("click", async (event) => {
         if (name === "auth-refresh" && message) {
           message.textContent = formatActionErrorMessage(error, "自动连接失败");
         } else {
-          alert("刷新数据失败: " + error.message);
+          presentActionFailure(error, "刷新数据失败");
         }
       } finally {
         setBusy(false, "");
@@ -11064,7 +11078,8 @@ document.addEventListener("click", async (event) => {
     if (name === "open-review-edit") {
       const review = getReviewById(action.dataset.reviewId || "");
       if (!review) {
-        alert("复盘记录不存在，请先刷新页面");
+        rememberAction("复盘记录不存在", "当前没有找到这条复盘记录，请先刷新当前页面。", "orange");
+        renderAll();
         return;
       }
       openReviewAction({ review });
@@ -11196,7 +11211,7 @@ document.addEventListener("click", async (event) => {
         }
       } catch (error) {
         if (requestToken === appState.selectedAccountRequestToken) {
-          alert("加载对标详情失败: " + error.message);
+          presentActionFailure(error, "加载对标详情失败");
         }
       } finally {
         if (requestToken === appState.selectedAccountRequestToken) {
diff --git a/web/storyforge-web-v4/tests/workbench-pages.test.mjs b/web/storyforge-web-v4/tests/workbench-pages.test.mjs
index 46bfbe4..e94b118 100644
--- a/web/storyforge-web-v4/tests/workbench-pages.test.mjs
+++ b/web/storyforge-web-v4/tests/workbench-pages.test.mjs
@@ -782,3 +782,10 @@ test("oneliner panel auto-polls active runs while the floating panel stays open"
   assert.match(APP, /setTimeout\(async \(\) => \{/);
   assert.match(APP, /await hydrateSelectedOneLinerRun\(\);/);
 });
+
+test("workbench interaction flow avoids browser alerts and keeps failures inside the product shell", () => {
+  const clicks = extractBetween(APP, "document.addEventListener(\"click\", async (event) => {", "document.addEventListener(\"submit\", async (event) => {");
+  assert.doesNotMatch(APP, /alert\(/);
+  assert.match(clicks, /name === "show-disabled-reason"[\s\S]*rememberAction\("动作已拦截"/);
+  assert.match(clicks, /name === "auth-refresh" \|\| name === "refresh-data"[\s\S]*presentActionFailure\(error, "刷新数据失败"\)/);
+});