diff --git a/src/features/workbench/hooks/use-workbench-sync.test.ts b/src/features/workbench/hooks/use-workbench-sync.test.ts
index 2770719..03e8498 100644
--- a/src/features/workbench/hooks/use-workbench-sync.test.ts
+++ b/src/features/workbench/hooks/use-workbench-sync.test.ts
@@ -1,5 +1,6 @@
 import { describe, expect, it } from "vitest";
-import { shouldApplyWorkbenchSnapshot } from "./use-workbench-sync";
+import type { WorkbenchEvent } from "../api/workbench-sync-client";
+import { shouldApplyWorkbenchSnapshot, shouldRefreshWorkbenchRuntime } from "./use-workbench-sync";
 
 describe("workbench snapshot ordering", () => {
   it("rejects an older concurrent response even when its cursor is valid", () => {
@@ -29,3 +30,24 @@ describe("workbench snapshot ordering", () => {
     })).toBe(true);
   });
 });
+
+describe("work-order projection readiness", () => {
+  const event: WorkbenchEvent = {
+    schema: "workbench-event@1",
+    event_seq: 1,
+    event_id: "324ff7ee-c2d4-5184-a84b-48fb14a2933e",
+    project_id: "324ff7ee-c2d4-5184-a84b-48fb14a2933e",
+    topic: "workbench.work_order.changed",
+    aggregate_type: "peripheral_work_order",
+    aggregate_id: "source-order",
+    aggregate_revision: 1,
+    occurred_at: "2026-10-08T00:00:00Z",
+    metadata: { source: "peripheral_sample" }
+  };
+
+  it("waits for authoritative projection events instead of fetching a premature snapshot", () => {
+    expect(shouldRefreshWorkbenchRuntime(event)).toBe(false);
+    expect(shouldRefreshWorkbenchRuntime({ ...event, aggregate_type: "operational_action" })).toBe(true);
+    expect(shouldRefreshWorkbenchRuntime({ ...event, topic: "workbench.alert.changed", aggregate_type: "workbench_alert" })).toBe(true);
+  });
+});
diff --git a/src/features/workbench/hooks/use-workbench-sync.ts b/src/features/workbench/hooks/use-workbench-sync.ts
index d8631d6..a918710 100644
--- a/src/features/workbench/hooks/use-workbench-sync.ts
+++ b/src/features/workbench/hooks/use-workbench-sync.ts
@@ -14,6 +14,12 @@ const RUNTIME_TOPICS = new Set<WorkbenchEvent["topic"]>([
   "analysis.run.changed"
 ]);
 
+export function shouldRefreshWorkbenchRuntime(event: WorkbenchEvent) {
+  // Source changes wake the backend synchronizer. Its committed task events
+  // refresh the UI after the authoritative projection is ready.
+  return RUNTIME_TOPICS.has(event.topic) && event.aggregate_type !== "peripheral_work_order";
+}
+
 export type WorkbenchSyncState = {
   snapshot: WorkbenchSyncSnapshot | null;
   events: WorkbenchEvent[];
@@ -99,7 +105,7 @@ export function useWorkbenchSync(getAccessToken?: AccessTokenProvider): Workbenc
             if (unseen.length === 0) return;
             cursorRef.current = unseen.at(-1)!.event_seq;
             setEvents((current) => [...current, ...unseen]);
-            if (unseen.some((event) => RUNTIME_TOPICS.has(event.topic))) {
+            if (unseen.some(shouldRefreshWorkbenchRuntime)) {
               if (runtimeRefreshRef.current !== undefined) window.clearTimeout(runtimeRefreshRef.current);
               runtimeRefreshRef.current = window.setTimeout(() => {
                 void loadSnapshot().catch((nextError) => {
diff --git a/tests/browser/peripheral-work-order-push.e2e.ts b/tests/browser/peripheral-work-order-push.e2e.ts
new file mode 100644
index 0000000..bae07d6
--- /dev/null
+++ b/tests/browser/peripheral-work-order-push.e2e.ts
@@ -0,0 +1,91 @@
+import { expect, test } from "@playwright/test";
+import { mockWorkbenchContext } from "./support/mock-workbench-context";
+import { TEST_PROJECT_ID } from "./support/mock-scada-api";
+
+test("源工单推送等待投影完成后自动进入预约任务，无需刷新快照", async ({ page }) => {
+  await mockWorkbenchContext(page);
+  const base = "https://tjwater-api.invalid/api/v1";
+  const taskId = "72000000-0000-4000-8000-000000000041";
+  const orderId = "73000000-0000-4000-8000-000000000041";
+  const now = new Date().toISOString();
+  const title = "主动推送工单：现场阀门复核";
+  const runtime = {
+    availability: "not_configured", source: "none",
+    scenario_availability: "not_configured", artifact_availability: "not_configured",
+    schedule_availability: "not_configured", work_order_availability: "not_configured",
+    alert_availability: "not_configured", generated_at: now,
+    conditions: [], alerts: [], scenarios: [], latest_analysis: null, work_orders: []
+  };
+  const task = {
+    project_id: TEST_PROJECT_ID, task_id: taskId, task_type: "external_work_order",
+    workflow: "external-work-order", lifecycle_status: "open", active_run: null,
+    status: "queued", priority: "normal", revision: 2, execution_generation: 1,
+    execution_request_id: "74000000-0000-4000-8000-000000000041", title,
+    summary: "收到新工单后自动同步，无需手动刷新",
+    source: { kind: "external_system", external_id: `peripheral_sample:${orderId}`, external_revision: 1, event_kind: "general" },
+    trigger: { kind: "external_sync", occurred_at: now, detail: "来源工单事件" },
+    scheduled_for: now, agent_session_id: null, agent_lease_expires_at: null,
+    current_plan_revision: null, current_report_revision: null, created_at: now, updated_at: now,
+    latest_plan: null, latest_report: null, evidence: [], actions: [],
+    permissions: {
+      can_publish_artifacts: false, can_propose_actions: false, can_sync_external_feedback: false,
+      can_decide_work_orders: false, can_execute_work_orders: false,
+      can_decide_commands: false, can_execute_commands: false
+    },
+    work_order_snapshot: {
+      work_order_id: orderId, revision: 1, title, summary: "现场阀门复核", status: "open",
+      priority: "normal", assignee: "现场班组", scheduled_at: now, work_order_type: "general",
+      location: "测试阀门", scenario_code: null, feedback_requirements: [], activity: [],
+      origin: "synthetic", updated_at: now
+    }
+  };
+  let snapshotRequests = 0;
+  let detailRequests = 0;
+  let releaseProjection!: () => void;
+  const projectionReady = new Promise<void>((resolve) => { releaseProjection = resolve; });
+  const headers = { "Access-Control-Allow-Origin": "*", "Access-Control-Allow-Headers": "*" };
+  await page.route(`${base}/workbench/sync-snapshot`, (route) => {
+    snapshotRequests += 1;
+    return route.fulfill({ headers, json: {
+      schema: "workbench-sync-snapshot@1", event_cursor: 0, runtime,
+      tasks: [], notifications: [], generated_at: now
+    } });
+  });
+  await page.route(`${base}/operational-tasks/${taskId}`, (route) => {
+    detailRequests += 1;
+    return route.fulfill({ headers, json: task });
+  });
+  await page.route(`${base}/workbench/events**`, async (route) => {
+    const after = new URL(route.request().url()).searchParams.get("after");
+    if (after !== "0" && after !== "1") {
+      return route.fulfill({ headers, contentType: "text/event-stream", body: ": keepalive\n\n" });
+    }
+    if (after === "1") await projectionReady;
+    const sequence = after === "0" ? 1 : 2;
+    const event = {
+      schema: "workbench-event@1", event_seq: sequence,
+      event_id: `75000000-0000-4000-8000-00000000000${sequence}`, project_id: TEST_PROJECT_ID,
+      topic: sequence === 1 ? "workbench.work_order.changed" : "operational.task.changed",
+      aggregate_type: sequence === 1 ? "peripheral_work_order" : "operational_task",
+      aggregate_id: sequence === 1 ? orderId : taskId, aggregate_revision: sequence,
+      occurred_at: now,
+      metadata: sequence === 1 ? { source: "peripheral_sample", work_order_id: orderId } : { task_id: taskId }
+    };
+    return route.fulfill({ headers, contentType: "text/event-stream", body: `id: ${sequence}\nevent: workbench_event\ndata: ${JSON.stringify(event)}\n\n` });
+  });
+  const waitingForProjection = page.waitForRequest((request) =>
+    request.url().includes("/workbench/events?after=1")
+  );
+  await page.goto("/", { waitUntil: "domcontentloaded" });
+  await page.getByRole("button", { name: "工况任务", exact: true }).click();
+  const panel = page.getByRole("region", { name: "工况任务", exact: true });
+  await panel.getByRole("button", { name: "展开工况任务" }).click();
+  await panel.getByRole("button", { name: /^预约任务/ }).click();
+  await waitingForProjection;
+  expect(snapshotRequests).toBe(1);
+  await expect(panel).not.toContainText(title);
+  releaseProjection();
+  await expect(panel).toContainText(title);
+  expect(detailRequests).toBe(1);
+  expect(snapshotRequests).toBe(1);
+});