diff --git a/packages/ui/src/features/code-review/components/CommentAnnotation.test.tsx b/packages/ui/src/features/code-review/components/CommentAnnotation.test.tsx
new file mode 100644
index 0000000000..464083677f
--- /dev/null
+++ b/packages/ui/src/features/code-review/components/CommentAnnotation.test.tsx
@@ -0,0 +1,50 @@
+import { Theme } from "@radix-ui/themes";
+import { render, screen } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import { useReviewDraftsStore } from "../reviewDraftsStore";
+import { CommentAnnotation } from "./CommentAnnotation";
+
+const { sendPromptToAgent } = vi.hoisted(() => ({
+  sendPromptToAgent: vi.fn(),
+}));
+
+vi.mock("../../sessions/sendPromptToAgent", () => ({ sendPromptToAgent }));
+
+describe("CommentAnnotation", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    useReviewDraftsStore.setState({ drafts: {}, batchEnabled: {} });
+  });
+
+  it("keeps expanded review open when sending an inline comment", async () => {
+    const user = userEvent.setup();
+    const onDismiss = vi.fn();
+
+    render(
+      <Theme>
+        <CommentAnnotation
+          taskId="task-1"
+          filePath="src/example.ts"
+          startLine={8}
+          endLine={10}
+          side="additions"
+          onDismiss={onDismiss}
+        />
+      </Theme>,
+    );
+
+    await user.type(
+      screen.getByPlaceholderText("Describe the changes you'd like..."),
+      "Use the shared helper",
+    );
+    await user.click(screen.getByRole("button", { name: "Submit" }));
+
+    expect(sendPromptToAgent).toHaveBeenCalledWith(
+      "task-1",
+      expect.stringContaining("Use the shared helper"),
+      { keepReviewExpanded: true },
+    );
+    expect(onDismiss).toHaveBeenCalledOnce();
+  });
+});
diff --git a/packages/ui/src/features/code-review/components/CommentAnnotation.tsx b/packages/ui/src/features/code-review/components/CommentAnnotation.tsx
index b1daf5d772..d328befc33 100644
--- a/packages/ui/src/features/code-review/components/CommentAnnotation.tsx
+++ b/packages/ui/src/features/code-review/components/CommentAnnotation.tsx
@@ -110,6 +110,7 @@ export function CommentAnnotation({
     sendPromptToAgent(
       taskId,
       buildInlineCommentPrompt(filePath, startLine, endLine, side, text),
+      { keepReviewExpanded: true },
     );
   }, [
     taskId,
diff --git a/packages/ui/src/features/code-review/components/PendingReviewBar.test.tsx b/packages/ui/src/features/code-review/components/PendingReviewBar.test.tsx
new file mode 100644
index 0000000000..3310021424
--- /dev/null
+++ b/packages/ui/src/features/code-review/components/PendingReviewBar.test.tsx
@@ -0,0 +1,54 @@
+import { Theme } from "@radix-ui/themes";
+import { render, screen } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import { useReviewDraftsStore } from "../reviewDraftsStore";
+import { PendingReviewBar } from "./PendingReviewBar";
+
+const { sendPromptToAgent } = vi.hoisted(() => ({
+  sendPromptToAgent: vi.fn(),
+}));
+
+vi.mock("../../sessions/sendPromptToAgent", () => ({ sendPromptToAgent }));
+
+describe("PendingReviewBar", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    useReviewDraftsStore.setState({
+      drafts: {
+        "task-1": [
+          {
+            id: "draft-1",
+            taskId: "task-1",
+            filePath: "src/example.ts",
+            startLine: 8,
+            endLine: 10,
+            side: "additions",
+            text: "Use the shared helper",
+            createdAt: 1,
+          },
+        ],
+      },
+      batchEnabled: { "task-1": true },
+    });
+  });
+
+  it("keeps expanded review open when sending batched comments", async () => {
+    const user = userEvent.setup();
+
+    render(
+      <Theme>
+        <PendingReviewBar taskId="task-1" />
+      </Theme>,
+    );
+
+    await user.click(screen.getByRole("button", { name: "Send to agent" }));
+
+    expect(sendPromptToAgent).toHaveBeenCalledWith(
+      "task-1",
+      expect.stringContaining("Use the shared helper"),
+      { keepReviewExpanded: true },
+    );
+    expect(useReviewDraftsStore.getState().getDraftCount("task-1")).toBe(0);
+  });
+});
diff --git a/packages/ui/src/features/code-review/components/PendingReviewBar.tsx b/packages/ui/src/features/code-review/components/PendingReviewBar.tsx
index 104480c07a..c2951b35fa 100644
--- a/packages/ui/src/features/code-review/components/PendingReviewBar.tsx
+++ b/packages/ui/src/features/code-review/components/PendingReviewBar.tsx
@@ -18,7 +18,7 @@ export function PendingReviewBar({ taskId }: PendingReviewBarProps) {
   const handleSend = () => {
     const prompt = buildBatchedInlineCommentsPrompt(drafts);
     if (!prompt) return;
-    sendPromptToAgent(taskId, prompt);
+    sendPromptToAgent(taskId, prompt, { keepReviewExpanded: true });
     clearDrafts(taskId);
   };
 
diff --git a/packages/ui/src/features/code-review/components/PrCommentThread.test.tsx b/packages/ui/src/features/code-review/components/PrCommentThread.test.tsx
index 7f14fe2ee9..1142e061c4 100644
--- a/packages/ui/src/features/code-review/components/PrCommentThread.test.tsx
+++ b/packages/ui/src/features/code-review/components/PrCommentThread.test.tsx
@@ -80,10 +80,12 @@ describe("PrCommentThread", () => {
     expect(sendPromptToAgent).toHaveBeenCalledWith(
       "task-1",
       expect.stringContaining("Could this use the shared helper?"),
+      { keepReviewExpanded: true },
     );
     expect(sendPromptToAgent).toHaveBeenCalledWith(
       "task-1",
       expect.stringContaining("Check whether this helper already exists"),
+      { keepReviewExpanded: true },
     );
     await waitFor(() =>
       expect(
diff --git a/packages/ui/src/features/code-review/components/PrCommentThread.tsx b/packages/ui/src/features/code-review/components/PrCommentThread.tsx
index 3addfc943c..936230b998 100644
--- a/packages/ui/src/features/code-review/components/PrCommentThread.tsx
+++ b/packages/ui/src/features/code-review/components/PrCommentThread.tsx
@@ -347,6 +347,7 @@ export function PrCommentThread({
       const success = await sendPromptToAgent(
         taskId,
         buildChatAboutPrCommentPrompt(filePath, endLine, side, comments, text),
+        { keepReviewExpanded: true },
       );
       setIsSendingChat(false);
       if (success) {
diff --git a/packages/ui/src/features/sessions/sendPromptToAgent.test.ts b/packages/ui/src/features/sessions/sendPromptToAgent.test.ts
index 7b6c070dd7..8e95c8d185 100644
--- a/packages/ui/src/features/sessions/sendPromptToAgent.test.ts
+++ b/packages/ui/src/features/sessions/sendPromptToAgent.test.ts
@@ -105,4 +105,19 @@ describe("sendPromptToAgent", () => {
       );
     },
   );
+
+  it("keeps expanded review open when requested", () => {
+    mockSender.mockResolvedValueOnce(undefined);
+    reviewState.mode = "expanded";
+    panelState.taskLayouts = { "task-1": { panelTree: {} } };
+
+    sendPromptToAgent("task-1", "hello", { keepReviewExpanded: true });
+
+    expect(reviewState.setReviewMode).not.toHaveBeenCalled();
+    expect(panelState.setActiveTab).toHaveBeenCalledWith(
+      "task-1",
+      "panel-logs",
+      DEFAULT_TAB_IDS.LOGS,
+    );
+  });
 });
diff --git a/packages/ui/src/features/sessions/sendPromptToAgent.ts b/packages/ui/src/features/sessions/sendPromptToAgent.ts
index 907bd1f2b1..a05cba85b2 100644
--- a/packages/ui/src/features/sessions/sendPromptToAgent.ts
+++ b/packages/ui/src/features/sessions/sendPromptToAgent.ts
@@ -10,13 +10,14 @@ import {
   type AgentPromptSender,
 } from "./agentPromptSender";
 
-/**
- * Sends a prompt to the agent session for a task, collapses the review
- * panel to split mode if expanded, and switches to the logs/chat tab.
- */
+interface SendPromptToAgentOptions {
+  keepReviewExpanded?: boolean;
+}
+
 export function sendPromptToAgent(
   taskId: string,
   prompt: string | ContentBlock[],
+  options: SendPromptToAgentOptions = {},
 ): Promise<boolean> {
   const sendPromise = resolveService<AgentPromptSender>(AGENT_PROMPT_SENDER)(
     taskId,
@@ -33,7 +34,7 @@ export function sendPromptToAgent(
     });
 
   const { getReviewMode, setReviewMode } = useReviewNavigationStore.getState();
-  if (getReviewMode(taskId) === "expanded") {
+  if (!options.keepReviewExpanded && getReviewMode(taskId) === "expanded") {
     setReviewMode(taskId, "split");
   }