diff --git a/CHANGELOG.md b/CHANGELOG.md
index 19d9bb2347c..fcf8d4862d8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ Docs: https://docs.openclaw.ai
 - Docker/timezone override: add `OPENCLAW_TZ` so `docker-setup.sh` can pin gateway and CLI containers to a chosen IANA timezone instead of inheriting the daemon default. (#34119) Thanks @Lanfei.
 - iOS/onboarding: add a first-run welcome pager before gateway setup, stop auto-opening the QR scanner, and show `/pair qr` instructions on the connect step. (#45054) Thanks @ngutman.
 - Browser/existing-session: add an official Chrome DevTools MCP attach mode for signed-in live Chrome sessions, with docs for `chrome://inspect/#remote-debugging` enablement and direct backlinks to Chrome’s own setup guides.
+- Browser/act automation: add batched actions, selector targeting, and delayed clicks for browser act requests with normalized batch dispatch. Thanks @vincentkoc.
 
 ### Fixes
 
diff --git a/src/browser/client-actions-core.ts b/src/browser/client-actions-core.ts
index 72e27cd9afa..149ca54fadf 100644
--- a/src/browser/client-actions-core.ts
+++ b/src/browser/client-actions-core.ts
@@ -15,16 +15,19 @@ export type BrowserFormField = {
 export type BrowserActRequest =
   | {
       kind: "click";
-      ref: string;
+      ref?: string;
+      selector?: string;
       targetId?: string;
       doubleClick?: boolean;
       button?: string;
       modifiers?: string[];
+      delayMs?: number;
       timeoutMs?: number;
     }
   | {
       kind: "type";
-      ref: string;
+      ref?: string;
+      selector?: string;
       text: string;
       targetId?: string;
       submit?: boolean;
@@ -32,23 +35,33 @@ export type BrowserActRequest =
       timeoutMs?: number;
     }
   | { kind: "press"; key: string; targetId?: string; delayMs?: number }
-  | { kind: "hover"; ref: string; targetId?: string; timeoutMs?: number }
+  | {
+      kind: "hover";
+      ref?: string;
+      selector?: string;
+      targetId?: string;
+      timeoutMs?: number;
+    }
   | {
       kind: "scrollIntoView";
-      ref: string;
+      ref?: string;
+      selector?: string;
       targetId?: string;
       timeoutMs?: number;
     }
   | {
       kind: "drag";
-      startRef: string;
-      endRef: string;
+      startRef?: string;
+      startSelector?: string;
+      endRef?: string;
+      endSelector?: string;
       targetId?: string;
       timeoutMs?: number;
     }
   | {
       kind: "select";
-      ref: string;
+      ref?: string;
+      selector?: string;
       values: string[];
       targetId?: string;
       timeoutMs?: number;
@@ -73,13 +86,20 @@ export type BrowserActRequest =
       timeoutMs?: number;
     }
   | { kind: "evaluate"; fn: string; ref?: string; targetId?: string; timeoutMs?: number }
-  | { kind: "close"; targetId?: string };
+  | { kind: "close"; targetId?: string }
+  | {
+      kind: "batch";
+      actions: BrowserActRequest[];
+      targetId?: string;
+      stopOnError?: boolean;
+    };
 
 export type BrowserActResponse = {
   ok: true;
   targetId: string;
   url?: string;
   result?: unknown;
+  results?: Array<{ ok: boolean; error?: string }>;
 };
 
 export type BrowserDownloadPayload = {
diff --git a/src/browser/client.test.ts b/src/browser/client.test.ts
index a4f95c23007..64d37580e35 100644
--- a/src/browser/client.test.ts
+++ b/src/browser/client.test.ts
@@ -160,6 +160,7 @@ describe("browser client", () => {
               targetId: "t1",
               url: "https://x",
               result: 1,
+              results: [{ ok: true }],
             }),
           } as unknown as Response;
         }
@@ -258,7 +259,7 @@ describe("browser client", () => {
     ).resolves.toMatchObject({ ok: true, targetId: "t1" });
     await expect(
       browserAct("http://127.0.0.1:18791", { kind: "click", ref: "1" }),
-    ).resolves.toMatchObject({ ok: true, targetId: "t1" });
+    ).resolves.toMatchObject({ ok: true, targetId: "t1", results: [{ ok: true }] });
     await expect(
       browserArmFileChooser("http://127.0.0.1:18791", {
         paths: ["/tmp/a.txt"],
diff --git a/src/browser/pw-ai.ts b/src/browser/pw-ai.ts
index 6da8b410c83..f8d538b5394 100644
--- a/src/browser/pw-ai.ts
+++ b/src/browser/pw-ai.ts
@@ -19,6 +19,7 @@ export {
 export {
   armDialogViaPlaywright,
   armFileUploadViaPlaywright,
+  batchViaPlaywright,
   clickViaPlaywright,
   closePageViaPlaywright,
   cookiesClearViaPlaywright,
diff --git a/src/browser/pw-tools-core.interactions.batch.test.ts b/src/browser/pw-tools-core.interactions.batch.test.ts
new file mode 100644
index 00000000000..2801ebe8190
--- /dev/null
+++ b/src/browser/pw-tools-core.interactions.batch.test.ts
@@ -0,0 +1,85 @@
+import { beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
+
+let page: { evaluate: ReturnType<typeof vi.fn> } | null = null;
+
+const getPageForTargetId = vi.fn(async () => {
+  if (!page) {
+    throw new Error("test: page not set");
+  }
+  return page;
+});
+const ensurePageState = vi.fn(() => {});
+const forceDisconnectPlaywrightForTarget = vi.fn(async () => {});
+const refLocator = vi.fn(() => {
+  throw new Error("test: refLocator should not be called");
+});
+const restoreRoleRefsForTarget = vi.fn(() => {});
+
+const closePageViaPlaywright = vi.fn(async () => {});
+const resizeViewportViaPlaywright = vi.fn(async () => {});
+
+vi.mock("./pw-session.js", () => ({
+  ensurePageState,
+  forceDisconnectPlaywrightForTarget,
+  getPageForTargetId,
+  refLocator,
+  restoreRoleRefsForTarget,
+}));
+
+vi.mock("./pw-tools-core.snapshot.js", () => ({
+  closePageViaPlaywright,
+  resizeViewportViaPlaywright,
+}));
+
+let batchViaPlaywright: typeof import("./pw-tools-core.interactions.js").batchViaPlaywright;
+
+describe("batchViaPlaywright", () => {
+  beforeAll(async () => {
+    ({ batchViaPlaywright } = await import("./pw-tools-core.interactions.js"));
+  });
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+    page = {
+      evaluate: vi.fn(async () => "ok"),
+    };
+  });
+
+  it("propagates evaluate timeouts through batched execution", async () => {
+    const result = await batchViaPlaywright({
+      cdpUrl: "http://127.0.0.1:9222",
+      targetId: "tab-1",
+      evaluateEnabled: true,
+      actions: [{ kind: "evaluate", fn: "() => 1", timeoutMs: 5000 }],
+    });
+
+    expect(result).toEqual({ results: [{ ok: true }] });
+    expect(page?.evaluate).toHaveBeenCalledWith(
+      expect.any(Function),
+      expect.objectContaining({
+        fnBody: "() => 1",
+        timeoutMs: 4500,
+      }),
+    );
+  });
+
+  it("supports resize and close inside a batch", async () => {
+    const result = await batchViaPlaywright({
+      cdpUrl: "http://127.0.0.1:9222",
+      targetId: "tab-1",
+      actions: [{ kind: "resize", width: 800, height: 600 }, { kind: "close" }],
+    });
+
+    expect(result).toEqual({ results: [{ ok: true }, { ok: true }] });
+    expect(resizeViewportViaPlaywright).toHaveBeenCalledWith({
+      cdpUrl: "http://127.0.0.1:9222",
+      targetId: "tab-1",
+      width: 800,
+      height: 600,
+    });
+    expect(closePageViaPlaywright).toHaveBeenCalledWith({
+      cdpUrl: "http://127.0.0.1:9222",
+      targetId: "tab-1",
+    });
+  });
+});
diff --git a/src/browser/pw-tools-core.interactions.ts b/src/browser/pw-tools-core.interactions.ts
index 852b11bb6dc..dee8a03316c 100644
--- a/src/browser/pw-tools-core.interactions.ts
+++ b/src/browser/pw-tools-core.interactions.ts
@@ -1,4 +1,4 @@
-import type { BrowserFormField } from "./client-actions-core.js";
+import type { BrowserActRequest, BrowserFormField } from "./client-actions-core.js";
 import { DEFAULT_FILL_FIELD_TYPE } from "./form-fields.js";
 import { DEFAULT_UPLOAD_DIR, resolveStrictExistingPathsWithinRoot } from "./paths.js";
 import {
@@ -8,12 +8,32 @@ import {
   refLocator,
   restoreRoleRefsForTarget,
 } from "./pw-session.js";
-import { normalizeTimeoutMs, requireRef, toAIFriendlyError } from "./pw-tools-core.shared.js";
+import {
+  normalizeTimeoutMs,
+  requireRef,
+  requireRefOrSelector,
+  toAIFriendlyError,
+} from "./pw-tools-core.shared.js";
+import { closePageViaPlaywright, resizeViewportViaPlaywright } from "./pw-tools-core.snapshot.js";
 
 type TargetOpts = {
   cdpUrl: string;
   targetId?: string;
 };
+const MAX_CLICK_DELAY_MS = 5_000;
+const MAX_WAIT_TIME_MS = 30_000;
+const MAX_BATCH_ACTIONS = 100;
+
+function resolveBoundedDelayMs(value: number | undefined, label: string, maxMs: number): number {
+  const normalized = Math.floor(value ?? 0);
+  if (!Number.isFinite(normalized) || normalized < 0) {
+    throw new Error(`${label} must be >= 0`);
+  }
+  if (normalized > maxMs) {
+    throw new Error(`${label} exceeds maximum of ${maxMs}ms`);
+  }
+  return normalized;
+}
 
 async function getRestoredPageForTarget(opts: TargetOpts) {
   const page = await getPageForTargetId(opts);
@@ -59,17 +79,27 @@ export async function highlightViaPlaywright(opts: {
 export async function clickViaPlaywright(opts: {
   cdpUrl: string;
   targetId?: string;
-  ref: string;
+  ref?: string;
+  selector?: string;
   doubleClick?: boolean;
   button?: "left" | "right" | "middle";
   modifiers?: Array<"Alt" | "Control" | "ControlOrMeta" | "Meta" | "Shift">;
+  delayMs?: number;
   timeoutMs?: number;
 }): Promise<void> {
+  const resolved = requireRefOrSelector(opts.ref, opts.selector);
   const page = await getRestoredPageForTarget(opts);
-  const ref = requireRef(opts.ref);
-  const locator = refLocator(page, ref);
+  const label = resolved.ref ?? resolved.selector!;
+  const locator = resolved.ref
+    ? refLocator(page, requireRef(resolved.ref))
+    : page.locator(resolved.selector!);
   const timeout = resolveInteractionTimeoutMs(opts.timeoutMs);
   try {
+    const delayMs = resolveBoundedDelayMs(opts.delayMs, "click delayMs", MAX_CLICK_DELAY_MS);
+    if (delayMs > 0) {
+      await locator.hover({ timeout });
+      await new Promise((r) => setTimeout(r, delayMs));
+    }
     if (opts.doubleClick) {
       await locator.dblclick({
         timeout,
@@ -84,67 +114,84 @@ export async function clickViaPlaywright(opts: {
       });
     }
   } catch (err) {
-    throw toAIFriendlyError(err, ref);
+    throw toAIFriendlyError(err, label);
   }
 }
 
 export async function hoverViaPlaywright(opts: {
   cdpUrl: string;
   targetId?: string;
-  ref: string;
+  ref?: string;
+  selector?: string;
   timeoutMs?: number;
 }): Promise<void> {
-  const ref = requireRef(opts.ref);
+  const resolved = requireRefOrSelector(opts.ref, opts.selector);
   const page = await getRestoredPageForTarget(opts);
+  const label = resolved.ref ?? resolved.selector!;
+  const locator = resolved.ref
+    ? refLocator(page, requireRef(resolved.ref))
+    : page.locator(resolved.selector!);
   try {
-    await refLocator(page, ref).hover({
+    await locator.hover({
       timeout: resolveInteractionTimeoutMs(opts.timeoutMs),
     });
   } catch (err) {
-    throw toAIFriendlyError(err, ref);
+    throw toAIFriendlyError(err, label);
   }
 }
 
 export async function dragViaPlaywright(opts: {
   cdpUrl: string;
   targetId?: string;
-  startRef: string;
-  endRef: string;
+  startRef?: string;
+  startSelector?: string;
+  endRef?: string;
+  endSelector?: string;
   timeoutMs?: number;
 }): Promise<void> {
-  const startRef = requireRef(opts.startRef);
-  const endRef = requireRef(opts.endRef);
-  if (!startRef || !endRef) {
-    throw new Error("startRef and endRef are required");
-  }
+  const resolvedStart = requireRefOrSelector(opts.startRef, opts.startSelector);
+  const resolvedEnd = requireRefOrSelector(opts.endRef, opts.endSelector);
   const page = await getRestoredPageForTarget(opts);
+  const startLocator = resolvedStart.ref
+    ? refLocator(page, requireRef(resolvedStart.ref))
+    : page.locator(resolvedStart.selector!);
+  const endLocator = resolvedEnd.ref
+    ? refLocator(page, requireRef(resolvedEnd.ref))
+    : page.locator(resolvedEnd.selector!);
+  const startLabel = resolvedStart.ref ?? resolvedStart.selector!;
+  const endLabel = resolvedEnd.ref ?? resolvedEnd.selector!;
   try {
-    await refLocator(page, startRef).dragTo(refLocator(page, endRef), {
+    await startLocator.dragTo(endLocator, {
       timeout: resolveInteractionTimeoutMs(opts.timeoutMs),
     });
   } catch (err) {
-    throw toAIFriendlyError(err, `${startRef} -> ${endRef}`);
+    throw toAIFriendlyError(err, `${startLabel} -> ${endLabel}`);
   }
 }
 
 export async function selectOptionViaPlaywright(opts: {
   cdpUrl: string;
   targetId?: string;
-  ref: string;
+  ref?: string;
+  selector?: string;
   values: string[];
   timeoutMs?: number;
 }): Promise<void> {
-  const ref = requireRef(opts.ref);
+  const resolved = requireRefOrSelector(opts.ref, opts.selector);
   if (!opts.values?.length) {
     throw new Error("values are required");
   }
   const page = await getRestoredPageForTarget(opts);
+  const label = resolved.ref ?? resolved.selector!;
+  const locator = resolved.ref
+    ? refLocator(page, requireRef(resolved.ref))
+    : page.locator(resolved.selector!);
   try {
-    await refLocator(page, ref).selectOption(opts.values, {
+    await locator.selectOption(opts.values, {
       timeout: resolveInteractionTimeoutMs(opts.timeoutMs),
     });
   } catch (err) {
-    throw toAIFriendlyError(err, ref);
+    throw toAIFriendlyError(err, label);
   }
 }
 
@@ -168,16 +215,20 @@ export async function pressKeyViaPlaywright(opts: {
 export async function typeViaPlaywright(opts: {
   cdpUrl: string;
   targetId?: string;
-  ref: string;
+  ref?: string;
+  selector?: string;
   text: string;
   submit?: boolean;
   slowly?: boolean;
   timeoutMs?: number;
 }): Promise<void> {
+  const resolved = requireRefOrSelector(opts.ref, opts.selector);
   const text = String(opts.text ?? "");
   const page = await getRestoredPageForTarget(opts);
-  const ref = requireRef(opts.ref);
-  const locator = refLocator(page, ref);
+  const label = resolved.ref ?? resolved.selector!;
+  const locator = resolved.ref
+    ? refLocator(page, requireRef(resolved.ref))
+    : page.locator(resolved.selector!);
   const timeout = resolveInteractionTimeoutMs(opts.timeoutMs);
   try {
     if (opts.slowly) {
@@ -190,7 +241,7 @@ export async function typeViaPlaywright(opts: {
       await locator.press("Enter", { timeout });
     }
   } catch (err) {
-    throw toAIFriendlyError(err, ref);
+    throw toAIFriendlyError(err, label);
   }
 }
 
@@ -367,18 +418,22 @@ export async function evaluateViaPlaywright(opts: {
 export async function scrollIntoViewViaPlaywright(opts: {
   cdpUrl: string;
   targetId?: string;
-  ref: string;
+  ref?: string;
+  selector?: string;
   timeoutMs?: number;
 }): Promise<void> {
+  const resolved = requireRefOrSelector(opts.ref, opts.selector);
   const page = await getRestoredPageForTarget(opts);
   const timeout = normalizeTimeoutMs(opts.timeoutMs, 20_000);
 
-  const ref = requireRef(opts.ref);
-  const locator = refLocator(page, ref);
+  const label = resolved.ref ?? resolved.selector!;
+  const locator = resolved.ref
+    ? refLocator(page, requireRef(resolved.ref))
+    : page.locator(resolved.selector!);
   try {
     await locator.scrollIntoViewIfNeeded({ timeout });
   } catch (err) {
-    throw toAIFriendlyError(err, ref);
+    throw toAIFriendlyError(err, label);
   }
 }
 
@@ -399,7 +454,7 @@ export async function waitForViaPlaywright(opts: {
   const timeout = normalizeTimeoutMs(opts.timeoutMs, 20_000);
 
   if (typeof opts.timeMs === "number" && Number.isFinite(opts.timeMs)) {
-    await page.waitForTimeout(Math.max(0, opts.timeMs));
+    await page.waitForTimeout(resolveBoundedDelayMs(opts.timeMs, "wait timeMs", MAX_WAIT_TIME_MS));
   }
   if (opts.text) {
     await page.getByText(opts.text).first().waitFor({
@@ -648,3 +703,189 @@ export async function setInputFilesViaPlaywright(opts: {
     // Best-effort for sites that don't react to setInputFiles alone.
   }
 }
+
+const MAX_BATCH_DEPTH = 5;
+
+async function executeSingleAction(
+  action: BrowserActRequest,
+  cdpUrl: string,
+  targetId?: string,
+  evaluateEnabled?: boolean,
+  depth = 0,
+): Promise<void> {
+  if (depth > MAX_BATCH_DEPTH) {
+    throw new Error(`Batch nesting depth exceeds maximum of ${MAX_BATCH_DEPTH}`);
+  }
+  const effectiveTargetId = action.targetId ?? targetId;
+  switch (action.kind) {
+    case "click":
+      await clickViaPlaywright({
+        cdpUrl,
+        targetId: effectiveTargetId,
+        ref: action.ref,
+        selector: action.selector,
+        doubleClick: action.doubleClick,
+        button: action.button as "left" | "right" | "middle" | undefined,
+        modifiers: action.modifiers as Array<
+          "Alt" | "Control" | "ControlOrMeta" | "Meta" | "Shift"
+        >,
+        delayMs: action.delayMs,
+        timeoutMs: action.timeoutMs,
+      });
+      break;
+    case "type":
+      await typeViaPlaywright({
+        cdpUrl,
+        targetId: effectiveTargetId,
+        ref: action.ref,
+        selector: action.selector,
+        text: action.text,
+        submit: action.submit,
+        slowly: action.slowly,
+        timeoutMs: action.timeoutMs,
+      });
+      break;
+    case "press":
+      await pressKeyViaPlaywright({
+        cdpUrl,
+        targetId: effectiveTargetId,
+        key: action.key,
+        delayMs: action.delayMs,
+      });
+      break;
+    case "hover":
+      await hoverViaPlaywright({
+        cdpUrl,
+        targetId: effectiveTargetId,
+        ref: action.ref,
+        selector: action.selector,
+        timeoutMs: action.timeoutMs,
+      });
+      break;
+    case "scrollIntoView":
+      await scrollIntoViewViaPlaywright({
+        cdpUrl,
+        targetId: effectiveTargetId,
+        ref: action.ref,
+        selector: action.selector,
+        timeoutMs: action.timeoutMs,
+      });
+      break;
+    case "drag":
+      await dragViaPlaywright({
+        cdpUrl,
+        targetId: effectiveTargetId,
+        startRef: action.startRef,
+        startSelector: action.startSelector,
+        endRef: action.endRef,
+        endSelector: action.endSelector,
+        timeoutMs: action.timeoutMs,
+      });
+      break;
+    case "select":
+      await selectOptionViaPlaywright({
+        cdpUrl,
+        targetId: effectiveTargetId,
+        ref: action.ref,
+        selector: action.selector,
+        values: action.values,
+        timeoutMs: action.timeoutMs,
+      });
+      break;
+    case "fill":
+      await fillFormViaPlaywright({
+        cdpUrl,
+        targetId: effectiveTargetId,
+        fields: action.fields,
+        timeoutMs: action.timeoutMs,
+      });
+      break;
+    case "resize":
+      await resizeViewportViaPlaywright({
+        cdpUrl,
+        targetId: effectiveTargetId,
+        width: action.width,
+        height: action.height,
+      });
+      break;
+    case "wait":
+      if (action.fn && !evaluateEnabled) {
+        throw new Error("wait --fn is disabled by config (browser.evaluateEnabled=false)");
+      }
+      await waitForViaPlaywright({
+        cdpUrl,
+        targetId: effectiveTargetId,
+        timeMs: action.timeMs,
+        text: action.text,
+        textGone: action.textGone,
+        selector: action.selector,
+        url: action.url,
+        loadState: action.loadState,
+        fn: action.fn,
+        timeoutMs: action.timeoutMs,
+      });
+      break;
+    case "evaluate":
+      if (!evaluateEnabled) {
+        throw new Error("act:evaluate is disabled by config (browser.evaluateEnabled=false)");
+      }
+      await evaluateViaPlaywright({
+        cdpUrl,
+        targetId: effectiveTargetId,
+        fn: action.fn,
+        ref: action.ref,
+        timeoutMs: action.timeoutMs,
+      });
+      break;
+    case "close":
+      await closePageViaPlaywright({
+        cdpUrl,
+        targetId: effectiveTargetId,
+      });
+      break;
+    case "batch":
+      // Nested batches: delegate recursively
+      await batchViaPlaywright({
+        cdpUrl,
+        targetId: effectiveTargetId,
+        actions: action.actions,
+        stopOnError: action.stopOnError,
+        evaluateEnabled,
+        depth: depth + 1,
+      });
+      break;
+    default:
+      throw new Error(`Unsupported batch action kind: ${(action as { kind: string }).kind}`);
+  }
+}
+
+export async function batchViaPlaywright(opts: {
+  cdpUrl: string;
+  targetId?: string;
+  actions: BrowserActRequest[];
+  stopOnError?: boolean;
+  evaluateEnabled?: boolean;
+  depth?: number;
+}): Promise<{ results: Array<{ ok: boolean; error?: string }> }> {
+  const depth = opts.depth ?? 0;
+  if (depth > MAX_BATCH_DEPTH) {
+    throw new Error(`Batch nesting depth exceeds maximum of ${MAX_BATCH_DEPTH}`);
+  }
+  if (opts.actions.length > MAX_BATCH_ACTIONS) {
+    throw new Error(`Batch exceeds maximum of ${MAX_BATCH_ACTIONS} actions`);
+  }
+  const results: Array<{ ok: boolean; error?: string }> = [];
+  for (const action of opts.actions) {
+    try {
+      await executeSingleAction(action, opts.cdpUrl, opts.targetId, opts.evaluateEnabled, depth);
+      results.push({ ok: true });
+    } catch (err) {
+      const message = err instanceof Error ? err.message : String(err);
+      results.push({ ok: false, error: message });
+      if (opts.stopOnError !== false) {
+        break;
+      }
+    }
+  }
+  return { results };
+}
diff --git a/src/browser/pw-tools-core.shared.ts b/src/browser/pw-tools-core.shared.ts
index d5ad74477d4..b6132de92bf 100644
--- a/src/browser/pw-tools-core.shared.ts
+++ b/src/browser/pw-tools-core.shared.ts
@@ -29,6 +29,21 @@ export function requireRef(value: unknown): string {
   return ref;
 }
 
+export function requireRefOrSelector(
+  ref: string | undefined,
+  selector: string | undefined,
+): { ref?: string; selector?: string } {
+  const trimmedRef = typeof ref === "string" ? ref.trim() : "";
+  const trimmedSelector = typeof selector === "string" ? selector.trim() : "";
+  if (!trimmedRef && !trimmedSelector) {
+    throw new Error("ref or selector is required");
+  }
+  return {
+    ref: trimmedRef || undefined,
+    selector: trimmedSelector || undefined,
+  };
+}
+
 export function normalizeTimeoutMs(timeoutMs: number | undefined, fallback: number) {
   return Math.max(500, Math.min(120_000, timeoutMs ?? fallback));
 }
diff --git a/src/browser/routes/agent.act.shared.ts b/src/browser/routes/agent.act.shared.ts
index 81ca8caab71..b22f35e7ef2 100644
--- a/src/browser/routes/agent.act.shared.ts
+++ b/src/browser/routes/agent.act.shared.ts
@@ -1,4 +1,5 @@
 export const ACT_KINDS = [
+  "batch",
   "click",
   "close",
   "drag",
diff --git a/src/browser/routes/agent.act.ts b/src/browser/routes/agent.act.ts
index 8928a8a7d06..0c4c9e71967 100644
--- a/src/browser/routes/agent.act.ts
+++ b/src/browser/routes/agent.act.ts
@@ -9,7 +9,7 @@ import {
   pressChromeMcpKey,
   resizeChromeMcpPage,
 } from "../chrome-mcp.js";
-import type { BrowserFormField } from "../client-actions-core.js";
+import type { BrowserActRequest, BrowserFormField } from "../client-actions-core.js";
 import { normalizeBrowserFormField } from "../form-fields.js";
 import type { BrowserRouteContext } from "../server-context.js";
 import { registerBrowserAgentActDownloadRoutes } from "./agent.act.download.js";
@@ -104,6 +104,326 @@ async function waitForExistingSessionCondition(params: {
   throw new Error("Timed out waiting for condition");
 }
 
+const SELECTOR_ALLOWED_KINDS: ReadonlySet<string> = new Set([
+  "batch",
+  "click",
+  "drag",
+  "hover",
+  "scrollIntoView",
+  "select",
+  "type",
+  "wait",
+]);
+const MAX_BATCH_ACTIONS = 100;
+const MAX_BATCH_CLICK_DELAY_MS = 5_000;
+const MAX_BATCH_WAIT_TIME_MS = 30_000;
+
+function normalizeBoundedNonNegativeMs(
+  value: unknown,
+  fieldName: string,
+  maxMs: number,
+): number | undefined {
+  const ms = toNumber(value);
+  if (ms === undefined) {
+    return undefined;
+  }
+  if (ms < 0) {
+    throw new Error(`${fieldName} must be >= 0`);
+  }
+  const normalized = Math.floor(ms);
+  if (normalized > maxMs) {
+    throw new Error(`${fieldName} exceeds maximum of ${maxMs}ms`);
+  }
+  return normalized;
+}
+
+function countBatchActions(actions: BrowserActRequest[]): number {
+  let count = 0;
+  for (const action of actions) {
+    count += 1;
+    if (action.kind === "batch") {
+      count += countBatchActions(action.actions);
+    }
+  }
+  return count;
+}
+
+function validateBatchTargetIds(actions: BrowserActRequest[], targetId: string): string | null {
+  for (const action of actions) {
+    if (action.targetId && action.targetId !== targetId) {
+      return "batched action targetId must match request targetId";
+    }
+    if (action.kind === "batch") {
+      const nestedError = validateBatchTargetIds(action.actions, targetId);
+      if (nestedError) {
+        return nestedError;
+      }
+    }
+  }
+  return null;
+}
+
+function normalizeBatchAction(value: unknown): BrowserActRequest {
+  if (!value || typeof value !== "object" || Array.isArray(value)) {
+    throw new Error("batch actions must be objects");
+  }
+  const raw = value as Record<string, unknown>;
+  const kind = toStringOrEmpty(raw.kind);
+  if (!isActKind(kind)) {
+    throw new Error("batch actions must use a supported kind");
+  }
+
+  switch (kind) {
+    case "click": {
+      const ref = toStringOrEmpty(raw.ref) || undefined;
+      const selector = toStringOrEmpty(raw.selector) || undefined;
+      if (!ref && !selector) {
+        throw new Error("click requires ref or selector");
+      }
+      const buttonRaw = toStringOrEmpty(raw.button);
+      const button = buttonRaw ? parseClickButton(buttonRaw) : undefined;
+      if (buttonRaw && !button) {
+        throw new Error("click button must be left|right|middle");
+      }
+      const modifiersRaw = toStringArray(raw.modifiers) ?? [];
+      const parsedModifiers = parseClickModifiers(modifiersRaw);
+      if (parsedModifiers.error) {
+        throw new Error(parsedModifiers.error);
+      }
+      const doubleClick = toBoolean(raw.doubleClick);
+      const delayMs = normalizeBoundedNonNegativeMs(
+        raw.delayMs,
+        "click delayMs",
+        MAX_BATCH_CLICK_DELAY_MS,
+      );
+      const timeoutMs = toNumber(raw.timeoutMs);
+      const targetId = toStringOrEmpty(raw.targetId) || undefined;
+      return {
+        kind,
+        ...(ref ? { ref } : {}),
+        ...(selector ? { selector } : {}),
+        ...(targetId ? { targetId } : {}),
+        ...(doubleClick !== undefined ? { doubleClick } : {}),
+        ...(button ? { button } : {}),
+        ...(parsedModifiers.modifiers ? { modifiers: parsedModifiers.modifiers } : {}),
+        ...(delayMs !== undefined ? { delayMs } : {}),
+        ...(timeoutMs !== undefined ? { timeoutMs } : {}),
+      };
+    }
+    case "type": {
+      const ref = toStringOrEmpty(raw.ref) || undefined;
+      const selector = toStringOrEmpty(raw.selector) || undefined;
+      const text = raw.text;
+      if (!ref && !selector) {
+        throw new Error("type requires ref or selector");
+      }
+      if (typeof text !== "string") {
+        throw new Error("type requires text");
+      }
+      const targetId = toStringOrEmpty(raw.targetId) || undefined;
+      const submit = toBoolean(raw.submit);
+      const slowly = toBoolean(raw.slowly);
+      const timeoutMs = toNumber(raw.timeoutMs);
+      return {
+        kind,
+        ...(ref ? { ref } : {}),
+        ...(selector ? { selector } : {}),
+        text,
+        ...(targetId ? { targetId } : {}),
+        ...(submit !== undefined ? { submit } : {}),
+        ...(slowly !== undefined ? { slowly } : {}),
+        ...(timeoutMs !== undefined ? { timeoutMs } : {}),
+      };
+    }
+    case "press": {
+      const key = toStringOrEmpty(raw.key);
+      if (!key) {
+        throw new Error("press requires key");
+      }
+      const targetId = toStringOrEmpty(raw.targetId) || undefined;
+      const delayMs = toNumber(raw.delayMs);
+      return {
+        kind,
+        key,
+        ...(targetId ? { targetId } : {}),
+        ...(delayMs !== undefined ? { delayMs } : {}),
+      };
+    }
+    case "hover":
+    case "scrollIntoView": {
+      const ref = toStringOrEmpty(raw.ref) || undefined;
+      const selector = toStringOrEmpty(raw.selector) || undefined;
+      if (!ref && !selector) {
+        throw new Error(`${kind} requires ref or selector`);
+      }
+      const targetId = toStringOrEmpty(raw.targetId) || undefined;
+      const timeoutMs = toNumber(raw.timeoutMs);
+      return {
+        kind,
+        ...(ref ? { ref } : {}),
+        ...(selector ? { selector } : {}),
+        ...(targetId ? { targetId } : {}),
+        ...(timeoutMs !== undefined ? { timeoutMs } : {}),
+      };
+    }
+    case "drag": {
+      const startRef = toStringOrEmpty(raw.startRef) || undefined;
+      const startSelector = toStringOrEmpty(raw.startSelector) || undefined;
+      const endRef = toStringOrEmpty(raw.endRef) || undefined;
+      const endSelector = toStringOrEmpty(raw.endSelector) || undefined;
+      if (!startRef && !startSelector) {
+        throw new Error("drag requires startRef or startSelector");
+      }
+      if (!endRef && !endSelector) {
+        throw new Error("drag requires endRef or endSelector");
+      }
+      const targetId = toStringOrEmpty(raw.targetId) || undefined;
+      const timeoutMs = toNumber(raw.timeoutMs);
+      return {
+        kind,
+        ...(startRef ? { startRef } : {}),
+        ...(startSelector ? { startSelector } : {}),
+        ...(endRef ? { endRef } : {}),
+        ...(endSelector ? { endSelector } : {}),
+        ...(targetId ? { targetId } : {}),
+        ...(timeoutMs !== undefined ? { timeoutMs } : {}),
+      };
+    }
+    case "select": {
+      const ref = toStringOrEmpty(raw.ref) || undefined;
+      const selector = toStringOrEmpty(raw.selector) || undefined;
+      const values = toStringArray(raw.values);
+      if ((!ref && !selector) || !values?.length) {
+        throw new Error("select requires ref/selector and values");
+      }
+      const targetId = toStringOrEmpty(raw.targetId) || undefined;
+      const timeoutMs = toNumber(raw.timeoutMs);
+      return {
+        kind,
+        ...(ref ? { ref } : {}),
+        ...(selector ? { selector } : {}),
+        values,
+        ...(targetId ? { targetId } : {}),
+        ...(timeoutMs !== undefined ? { timeoutMs } : {}),
+      };
+    }
+    case "fill": {
+      const rawFields = Array.isArray(raw.fields) ? raw.fields : [];
+      const fields = rawFields
+        .map((field) => {
+          if (!field || typeof field !== "object") {
+            return null;
+          }
+          return normalizeBrowserFormField(field as Record<string, unknown>);
+        })
+        .filter((field): field is BrowserFormField => field !== null);
+      if (!fields.length) {
+        throw new Error("fill requires fields");
+      }
+      const targetId = toStringOrEmpty(raw.targetId) || undefined;
+      const timeoutMs = toNumber(raw.timeoutMs);
+      return {
+        kind,
+        fields,
+        ...(targetId ? { targetId } : {}),
+        ...(timeoutMs !== undefined ? { timeoutMs } : {}),
+      };
+    }
+    case "resize": {
+      const width = toNumber(raw.width);
+      const height = toNumber(raw.height);
+      if (width === undefined || height === undefined) {
+        throw new Error("resize requires width and height");
+      }
+      const targetId = toStringOrEmpty(raw.targetId) || undefined;
+      return {
+        kind,
+        width,
+        height,
+        ...(targetId ? { targetId } : {}),
+      };
+    }
+    case "wait": {
+      const loadStateRaw = toStringOrEmpty(raw.loadState);
+      const loadState =
+        loadStateRaw === "load" ||
+        loadStateRaw === "domcontentloaded" ||
+        loadStateRaw === "networkidle"
+          ? loadStateRaw
+          : undefined;
+      const timeMs = normalizeBoundedNonNegativeMs(
+        raw.timeMs,
+        "wait timeMs",
+        MAX_BATCH_WAIT_TIME_MS,
+      );
+      const text = toStringOrEmpty(raw.text) || undefined;
+      const textGone = toStringOrEmpty(raw.textGone) || undefined;
+      const selector = toStringOrEmpty(raw.selector) || undefined;
+      const url = toStringOrEmpty(raw.url) || undefined;
+      const fn = toStringOrEmpty(raw.fn) || undefined;
+      if (timeMs === undefined && !text && !textGone && !selector && !url && !loadState && !fn) {
+        throw new Error(
+          "wait requires at least one of: timeMs, text, textGone, selector, url, loadState, fn",
+        );
+      }
+      const targetId = toStringOrEmpty(raw.targetId) || undefined;
+      const timeoutMs = toNumber(raw.timeoutMs);
+      return {
+        kind,
+        ...(timeMs !== undefined ? { timeMs } : {}),
+        ...(text ? { text } : {}),
+        ...(textGone ? { textGone } : {}),
+        ...(selector ? { selector } : {}),
+        ...(url ? { url } : {}),
+        ...(loadState ? { loadState } : {}),
+        ...(fn ? { fn } : {}),
+        ...(targetId ? { targetId } : {}),
+        ...(timeoutMs !== undefined ? { timeoutMs } : {}),
+      };
+    }
+    case "evaluate": {
+      const fn = toStringOrEmpty(raw.fn);
+      if (!fn) {
+        throw new Error("evaluate requires fn");
+      }
+      const ref = toStringOrEmpty(raw.ref) || undefined;
+      const targetId = toStringOrEmpty(raw.targetId) || undefined;
+      const timeoutMs = toNumber(raw.timeoutMs);
+      return {
+        kind,
+        fn,
+        ...(ref ? { ref } : {}),
+        ...(targetId ? { targetId } : {}),
+        ...(timeoutMs !== undefined ? { timeoutMs } : {}),
+      };
+    }
+    case "close": {
+      const targetId = toStringOrEmpty(raw.targetId) || undefined;
+      return {
+        kind,
+        ...(targetId ? { targetId } : {}),
+      };
+    }
+    case "batch": {
+      const actions = Array.isArray(raw.actions) ? raw.actions.map(normalizeBatchAction) : [];
+      if (!actions.length) {
+        throw new Error("batch requires actions");
+      }
+      if (countBatchActions(actions) > MAX_BATCH_ACTIONS) {
+        throw new Error(`batch exceeds maximum of ${MAX_BATCH_ACTIONS} actions`);
+      }
+      const targetId = toStringOrEmpty(raw.targetId) || undefined;
+      const stopOnError = toBoolean(raw.stopOnError);
+      return {
+        kind,
+        actions,
+        ...(targetId ? { targetId } : {}),
+        ...(stopOnError !== undefined ? { stopOnError } : {}),
+      };
+    }
+  }
+}
+
 export function registerBrowserAgentActRoutes(
   app: BrowserRouteRegistrar,
   ctx: BrowserRouteContext,
@@ -116,7 +436,7 @@ export function registerBrowserAgentActRoutes(
     }
     const kind: ActKind = kindRaw;
     const targetId = resolveTargetIdFromBody(body);
-    if (Object.hasOwn(body, "selector") && kind !== "wait") {
+    if (Object.hasOwn(body, "selector") && !SELECTOR_ALLOWED_KINDS.has(kind)) {
       return jsonError(res, 400, SELECTOR_UNSUPPORTED_MESSAGE);
     }
 
@@ -132,12 +452,14 @@ export function registerBrowserAgentActRoutes(
 
         switch (kind) {
           case "click": {
-            const ref = toStringOrEmpty(body.ref);
-            if (!ref) {
-              return jsonError(res, 400, "ref is required");
+            const ref = toStringOrEmpty(body.ref) || undefined;
+            const selector = toStringOrEmpty(body.selector) || undefined;
+            if (!ref && !selector) {
+              return jsonError(res, 400, "ref or selector is required");
             }
             const doubleClick = toBoolean(body.doubleClick) ?? false;
             const timeoutMs = toNumber(body.timeoutMs);
+            const delayMs = toNumber(body.delayMs);
             const buttonRaw = toStringOrEmpty(body.button) || "";
             const button = buttonRaw ? parseClickButton(buttonRaw) : undefined;
             if (buttonRaw && !button) {
@@ -151,6 +473,13 @@ export function registerBrowserAgentActRoutes(
             }
             const modifiers = parsedModifiers.modifiers;
             if (isExistingSession) {
+              if (selector) {
+                return jsonError(
+                  res,
+                  501,
+                  "existing-session click does not support selector targeting yet; use ref.",
+                );
+              }
               if ((button && button !== "left") || (modifiers && modifiers.length > 0)) {
                 return jsonError(
                   res,
@@ -161,7 +490,7 @@ export function registerBrowserAgentActRoutes(
               await clickChromeMcpElement({
                 profileName,
                 targetId: tab.targetId,
-                uid: ref,
+                uid: ref!,
                 doubleClick,
               });
               return res.json({ ok: true, targetId: tab.targetId, url: tab.url });
@@ -173,15 +502,23 @@ export function registerBrowserAgentActRoutes(
             const clickRequest: Parameters<typeof pw.clickViaPlaywright>[0] = {
               cdpUrl,
               targetId: tab.targetId,
-              ref,
               doubleClick,
             };
+            if (ref) {
+              clickRequest.ref = ref;
+            }
+            if (selector) {
+              clickRequest.selector = selector;
+            }
             if (button) {
               clickRequest.button = button;
             }
             if (modifiers) {
               clickRequest.modifiers = modifiers;
             }
+            if (delayMs) {
+              clickRequest.delayMs = delayMs;
+            }
             if (timeoutMs) {
               clickRequest.timeoutMs = timeoutMs;
             }
@@ -189,9 +526,10 @@ export function registerBrowserAgentActRoutes(
             return res.json({ ok: true, targetId: tab.targetId, url: tab.url });
           }
           case "type": {
-            const ref = toStringOrEmpty(body.ref);
-            if (!ref) {
-              return jsonError(res, 400, "ref is required");
+            const ref = toStringOrEmpty(body.ref) || undefined;
+            const selector = toStringOrEmpty(body.selector) || undefined;
+            if (!ref && !selector) {
+              return jsonError(res, 400, "ref or selector is required");
             }
             if (typeof body.text !== "string") {
               return jsonError(res, 400, "text is required");
@@ -201,6 +539,13 @@ export function registerBrowserAgentActRoutes(
             const slowly = toBoolean(body.slowly) ?? false;
             const timeoutMs = toNumber(body.timeoutMs);
             if (isExistingSession) {
+              if (selector) {
+                return jsonError(
+                  res,
+                  501,
+                  "existing-session type does not support selector targeting yet; use ref.",
+                );
+              }
               if (slowly) {
                 return jsonError(
                   res,
@@ -211,7 +556,7 @@ export function registerBrowserAgentActRoutes(
               await fillChromeMcpElement({
                 profileName,
                 targetId: tab.targetId,
-                uid: ref,
+                uid: ref!,
                 value: text,
               });
               if (submit) {
@@ -230,11 +575,16 @@ export function registerBrowserAgentActRoutes(
             const typeRequest: Parameters<typeof pw.typeViaPlaywright>[0] = {
               cdpUrl,
               targetId: tab.targetId,
-              ref,
               text,
               submit,
               slowly,
             };
+            if (ref) {
+              typeRequest.ref = ref;
+            }
+            if (selector) {
+              typeRequest.selector = selector;
+            }
             if (timeoutMs) {
               typeRequest.timeoutMs = timeoutMs;
             }
@@ -267,12 +617,20 @@ export function registerBrowserAgentActRoutes(
             return res.json({ ok: true, targetId: tab.targetId });
           }
           case "hover": {
-            const ref = toStringOrEmpty(body.ref);
-            if (!ref) {
-              return jsonError(res, 400, "ref is required");
+            const ref = toStringOrEmpty(body.ref) || undefined;
+            const selector = toStringOrEmpty(body.selector) || undefined;
+            if (!ref && !selector) {
+              return jsonError(res, 400, "ref or selector is required");
             }
             const timeoutMs = toNumber(body.timeoutMs);
             if (isExistingSession) {
+              if (selector) {
+                return jsonError(
+                  res,
+                  501,
+                  "existing-session hover does not support selector targeting yet; use ref.",
+                );
+              }
               if (timeoutMs) {
                 return jsonError(
                   res,
@@ -280,7 +638,7 @@ export function registerBrowserAgentActRoutes(
                   "existing-session hover does not support timeoutMs overrides.",
                 );
               }
-              await hoverChromeMcpElement({ profileName, targetId: tab.targetId, uid: ref });
+              await hoverChromeMcpElement({ profileName, targetId: tab.targetId, uid: ref! });
               return res.json({ ok: true, targetId: tab.targetId });
             }
             const pw = await requirePwAi(res, `act:${kind}`);
@@ -291,17 +649,26 @@ export function registerBrowserAgentActRoutes(
               cdpUrl,
               targetId: tab.targetId,
               ref,
+              selector,
               timeoutMs: timeoutMs ?? undefined,
             });
             return res.json({ ok: true, targetId: tab.targetId });
           }
           case "scrollIntoView": {
-            const ref = toStringOrEmpty(body.ref);
-            if (!ref) {
-              return jsonError(res, 400, "ref is required");
+            const ref = toStringOrEmpty(body.ref) || undefined;
+            const selector = toStringOrEmpty(body.selector) || undefined;
+            if (!ref && !selector) {
+              return jsonError(res, 400, "ref or selector is required");
             }
             const timeoutMs = toNumber(body.timeoutMs);
             if (isExistingSession) {
+              if (selector) {
+                return jsonError(
+                  res,
+                  501,
+                  "existing-session scrollIntoView does not support selector targeting yet; use ref.",
+                );
+              }
               if (timeoutMs) {
                 return jsonError(
                   res,
@@ -313,7 +680,7 @@ export function registerBrowserAgentActRoutes(
                 profileName,
                 targetId: tab.targetId,
                 fn: `(el) => { el.scrollIntoView({ block: "center", inline: "center" }); return true; }`,
-                args: [ref],
+                args: [ref!],
               });
               return res.json({ ok: true, targetId: tab.targetId });
             }
@@ -324,8 +691,13 @@ export function registerBrowserAgentActRoutes(
             const scrollRequest: Parameters<typeof pw.scrollIntoViewViaPlaywright>[0] = {
               cdpUrl,
               targetId: tab.targetId,
-              ref,
             };
+            if (ref) {
+              scrollRequest.ref = ref;
+            }
+            if (selector) {
+              scrollRequest.selector = selector;
+            }
             if (timeoutMs) {
               scrollRequest.timeoutMs = timeoutMs;
             }
@@ -333,13 +705,25 @@ export function registerBrowserAgentActRoutes(
             return res.json({ ok: true, targetId: tab.targetId });
           }
           case "drag": {
-            const startRef = toStringOrEmpty(body.startRef);
-            const endRef = toStringOrEmpty(body.endRef);
-            if (!startRef || !endRef) {
-              return jsonError(res, 400, "startRef and endRef are required");
+            const startRef = toStringOrEmpty(body.startRef) || undefined;
+            const startSelector = toStringOrEmpty(body.startSelector) || undefined;
+            const endRef = toStringOrEmpty(body.endRef) || undefined;
+            const endSelector = toStringOrEmpty(body.endSelector) || undefined;
+            if (!startRef && !startSelector) {
+              return jsonError(res, 400, "startRef or startSelector is required");
+            }
+            if (!endRef && !endSelector) {
+              return jsonError(res, 400, "endRef or endSelector is required");
             }
             const timeoutMs = toNumber(body.timeoutMs);
             if (isExistingSession) {
+              if (startSelector || endSelector) {
+                return jsonError(
+                  res,
+                  501,
+                  "existing-session drag does not support selector targeting yet; use startRef/endRef.",
+                );
+              }
               if (timeoutMs) {
                 return jsonError(
                   res,
@@ -350,8 +734,8 @@ export function registerBrowserAgentActRoutes(
               await dragChromeMcpElement({
                 profileName,
                 targetId: tab.targetId,
-                fromUid: startRef,
-                toUid: endRef,
+                fromUid: startRef!,
+                toUid: endRef!,
               });
               return res.json({ ok: true, targetId: tab.targetId });
             }
@@ -363,19 +747,29 @@ export function registerBrowserAgentActRoutes(
               cdpUrl,
               targetId: tab.targetId,
               startRef,
+              startSelector,
               endRef,
+              endSelector,
               timeoutMs: timeoutMs ?? undefined,
             });
             return res.json({ ok: true, targetId: tab.targetId });
           }
           case "select": {
-            const ref = toStringOrEmpty(body.ref);
+            const ref = toStringOrEmpty(body.ref) || undefined;
+            const selector = toStringOrEmpty(body.selector) || undefined;
             const values = toStringArray(body.values);
-            if (!ref || !values?.length) {
-              return jsonError(res, 400, "ref and values are required");
+            if ((!ref && !selector) || !values?.length) {
+              return jsonError(res, 400, "ref/selector and values are required");
             }
             const timeoutMs = toNumber(body.timeoutMs);
             if (isExistingSession) {
+              if (selector) {
+                return jsonError(
+                  res,
+                  501,
+                  "existing-session select does not support selector targeting yet; use ref.",
+                );
+              }
               if (values.length !== 1) {
                 return jsonError(
                   res,
@@ -393,7 +787,7 @@ export function registerBrowserAgentActRoutes(
               await fillChromeMcpElement({
                 profileName,
                 targetId: tab.targetId,
-                uid: ref,
+                uid: ref!,
                 value: values[0] ?? "",
               });
               return res.json({ ok: true, targetId: tab.targetId });
@@ -406,6 +800,7 @@ export function registerBrowserAgentActRoutes(
               cdpUrl,
               targetId: tab.targetId,
               ref,
+              selector,
               values,
               timeoutMs: timeoutMs ?? undefined,
             });
@@ -627,6 +1022,41 @@ export function registerBrowserAgentActRoutes(
             await pw.closePageViaPlaywright({ cdpUrl, targetId: tab.targetId });
             return res.json({ ok: true, targetId: tab.targetId });
           }
+          case "batch": {
+            if (isExistingSession) {
+              return jsonError(
+                res,
+                501,
+                "existing-session batch is not supported yet; send actions individually.",
+              );
+            }
+            const pw = await requirePwAi(res, `act:${kind}`);
+            if (!pw) {
+              return;
+            }
+            let actions: BrowserActRequest[];
+            try {
+              actions = Array.isArray(body.actions) ? body.actions.map(normalizeBatchAction) : [];
+            } catch (err) {
+              return jsonError(res, 400, err instanceof Error ? err.message : String(err));
+            }
+            if (!actions.length) {
+              return jsonError(res, 400, "actions are required");
+            }
+            const targetIdError = validateBatchTargetIds(actions, tab.targetId);
+            if (targetIdError) {
+              return jsonError(res, 403, targetIdError);
+            }
+            const stopOnError = toBoolean(body.stopOnError) ?? true;
+            const result = await pw.batchViaPlaywright({
+              cdpUrl,
+              targetId: tab.targetId,
+              actions,
+              stopOnError,
+              evaluateEnabled,
+            });
+            return res.json({ ok: true, targetId: tab.targetId, results: result.results });
+          }
           default: {
             return jsonError(res, 400, "unsupported kind");
           }
diff --git a/src/browser/server.agent-contract-form-layout-act-commands.test.ts b/src/browser/server.agent-contract-form-layout-act-commands.test.ts
index 738bf8b7e2d..912d024916c 100644
--- a/src/browser/server.agent-contract-form-layout-act-commands.test.ts
+++ b/src/browser/server.agent-contract-form-layout-act-commands.test.ts
@@ -51,12 +51,14 @@ describe("browser control server", () => {
         values: ["a", "b"],
       });
       expect(select.ok).toBe(true);
-      expect(pwMocks.selectOptionViaPlaywright).toHaveBeenCalledWith({
-        cdpUrl: state.cdpBaseUrl,
-        targetId: "abcd1234",
-        ref: "5",
-        values: ["a", "b"],
-      });
+      expect(pwMocks.selectOptionViaPlaywright).toHaveBeenCalledWith(
+        expect.objectContaining({
+          cdpUrl: expect.any(String),
+          targetId: "abcd1234",
+          ref: "5",
+          values: ["a", "b"],
+        }),
+      );
 
       const fillCases: Array<{
         input: Record<string, unknown>;
@@ -81,11 +83,13 @@ describe("browser control server", () => {
           fields: [input],
         });
         expect(fill.ok).toBe(true);
-        expect(pwMocks.fillFormViaPlaywright).toHaveBeenCalledWith({
-          cdpUrl: state.cdpBaseUrl,
-          targetId: "abcd1234",
-          fields: [expected],
-        });
+        expect(pwMocks.fillFormViaPlaywright).toHaveBeenCalledWith(
+          expect.objectContaining({
+            cdpUrl: expect.any(String),
+            targetId: "abcd1234",
+            fields: [expected],
+          }),
+        );
       }
 
       const resize = await postJson<{ ok: boolean }>(`${base}/act`, {
@@ -94,12 +98,14 @@ describe("browser control server", () => {
         height: 600,
       });
       expect(resize.ok).toBe(true);
-      expect(pwMocks.resizeViewportViaPlaywright).toHaveBeenCalledWith({
-        cdpUrl: state.cdpBaseUrl,
-        targetId: "abcd1234",
-        width: 800,
-        height: 600,
-      });
+      expect(pwMocks.resizeViewportViaPlaywright).toHaveBeenCalledWith(
+        expect.objectContaining({
+          cdpUrl: expect.any(String),
+          targetId: "abcd1234",
+          width: 800,
+          height: 600,
+        }),
+      );
 
       const wait = await postJson<{ ok: boolean }>(`${base}/act`, {
         kind: "wait",
@@ -157,6 +163,130 @@ describe("browser control server", () => {
     slowTimeoutMs,
   );
 
+  it(
+    "normalizes batch actions and threads evaluateEnabled into the batch executor",
+    async () => {
+      const base = await startServerAndBase();
+
+      const batchRes = await postJson<{ ok: boolean; results?: Array<{ ok: boolean }> }>(
+        `${base}/act`,
+        {
+          kind: "batch",
+          stopOnError: "false",
+          actions: [
+            { kind: "click", selector: "button.save", doubleClick: "true", delayMs: "25" },
+            { kind: "wait", fn: " () => window.ready === true " },
+          ],
+        },
+      );
+
+      expect(batchRes.ok).toBe(true);
+      expect(pwMocks.batchViaPlaywright).toHaveBeenCalledWith(
+        expect.objectContaining({
+          cdpUrl: expect.any(String),
+          targetId: "abcd1234",
+          stopOnError: false,
+          evaluateEnabled: true,
+          actions: [
+            {
+              kind: "click",
+              selector: "button.save",
+              doubleClick: true,
+              delayMs: 25,
+            },
+            {
+              kind: "wait",
+              fn: "() => window.ready === true",
+            },
+          ],
+        }),
+      );
+    },
+    slowTimeoutMs,
+  );
+
+  it(
+    "preserves exact type text in batch normalization",
+    async () => {
+      const base = await startServerAndBase();
+
+      const batchRes = await postJson<{ ok: boolean }>(`${base}/act`, {
+        kind: "batch",
+        actions: [
+          { kind: "type", selector: "input.name", text: "  padded  " },
+          { kind: "type", selector: "input.clearable", text: "" },
+        ],
+      });
+
+      expect(batchRes.ok).toBe(true);
+      expect(pwMocks.batchViaPlaywright).toHaveBeenCalledWith(
+        expect.objectContaining({
+          actions: [
+            {
+              kind: "type",
+              selector: "input.name",
+              text: "  padded  ",
+            },
+            {
+              kind: "type",
+              selector: "input.clearable",
+              text: "",
+            },
+          ],
+        }),
+      );
+    },
+    slowTimeoutMs,
+  );
+
+  it(
+    "rejects malformed batch actions before dispatch",
+    async () => {
+      const base = await startServerAndBase();
+
+      const batchRes = await postJson<{ error?: string }>(`${base}/act`, {
+        kind: "batch",
+        actions: [{ kind: "click", ref: {} }],
+      });
+
+      expect(batchRes.error).toContain("click requires ref or selector");
+      expect(pwMocks.batchViaPlaywright).not.toHaveBeenCalled();
+    },
+    slowTimeoutMs,
+  );
+
+  it(
+    "rejects batched action targetId overrides before dispatch",
+    async () => {
+      const base = await startServerAndBase();
+
+      const batchRes = await postJson<{ error?: string }>(`${base}/act`, {
+        kind: "batch",
+        actions: [{ kind: "click", ref: "5", targetId: "other-tab" }],
+      });
+
+      expect(batchRes.error).toContain("batched action targetId must match request targetId");
+      expect(pwMocks.batchViaPlaywright).not.toHaveBeenCalled();
+    },
+    slowTimeoutMs,
+  );
+
+  it(
+    "rejects oversized batch delays before dispatch",
+    async () => {
+      const base = await startServerAndBase();
+
+      const batchRes = await postJson<{ error?: string }>(`${base}/act`, {
+        kind: "batch",
+        actions: [{ kind: "click", selector: "button.save", delayMs: 5001 }],
+      });
+
+      expect(batchRes.error).toContain("click delayMs exceeds maximum of 5000ms");
+      expect(pwMocks.batchViaPlaywright).not.toHaveBeenCalled();
+    },
+    slowTimeoutMs,
+  );
+
   it("agent contract: hooks + response + downloads + screenshot", async () => {
     const base = await startServerAndBase();
 
@@ -165,13 +295,15 @@ describe("browser control server", () => {
       timeoutMs: 1234,
     });
     expect(upload).toMatchObject({ ok: true });
-    expect(pwMocks.armFileUploadViaPlaywright).toHaveBeenCalledWith({
-      cdpUrl: state.cdpBaseUrl,
-      targetId: "abcd1234",
-      // The server resolves paths (which adds a drive letter on Windows for `\\tmp\\...` style roots).
-      paths: [path.resolve(DEFAULT_UPLOAD_DIR, "a.txt")],
-      timeoutMs: 1234,
-    });
+    expect(pwMocks.armFileUploadViaPlaywright).toHaveBeenCalledWith(
+      expect.objectContaining({
+        cdpUrl: expect.any(String),
+        targetId: "abcd1234",
+        // The server resolves paths (which adds a drive letter on Windows for `\\tmp\\...` style roots).
+        paths: [path.resolve(DEFAULT_UPLOAD_DIR, "a.txt")],
+        timeoutMs: 1234,
+      }),
+    );
 
     const uploadWithRef = await postJson(`${base}/hooks/file-chooser`, {
       paths: ["b.txt"],
@@ -280,7 +412,7 @@ describe("browser control server", () => {
     expect(res.path).toContain("safe-trace.zip");
     expect(pwMocks.traceStopViaPlaywright).toHaveBeenCalledWith(
       expect.objectContaining({
-        cdpUrl: state.cdpBaseUrl,
+        cdpUrl: expect.any(String),
         targetId: "abcd1234",
         path: expect.stringContaining("safe-trace.zip"),
       }),
@@ -369,7 +501,7 @@ describe("browser control server", () => {
     expect(res.ok).toBe(true);
     expect(pwMocks.waitForDownloadViaPlaywright).toHaveBeenCalledWith(
       expect.objectContaining({
-        cdpUrl: state.cdpBaseUrl,
+        cdpUrl: expect.any(String),
         targetId: "abcd1234",
         path: expect.stringContaining("safe-wait.pdf"),
       }),
@@ -385,7 +517,7 @@ describe("browser control server", () => {
     expect(res.ok).toBe(true);
     expect(pwMocks.downloadViaPlaywright).toHaveBeenCalledWith(
       expect.objectContaining({
-        cdpUrl: state.cdpBaseUrl,
+        cdpUrl: expect.any(String),
         targetId: "abcd1234",
         ref: "e12",
         path: expect.stringContaining("safe-download.pdf"),
diff --git a/src/browser/server.control-server.test-harness.ts b/src/browser/server.control-server.test-harness.ts
index 5721d9eb17b..3a54f6662d5 100644
--- a/src/browser/server.control-server.test-harness.ts
+++ b/src/browser/server.control-server.test-harness.ts
@@ -77,6 +77,7 @@ export function getCdpMocks(): { createTargetViaCdp: MockFn; snapshotAria: MockF
 const pwMocks = vi.hoisted(() => ({
   armDialogViaPlaywright: vi.fn(async () => {}),
   armFileUploadViaPlaywright: vi.fn(async () => {}),
+  batchViaPlaywright: vi.fn(async () => ({ results: [] })),
   clickViaPlaywright: vi.fn(async () => {}),
   closePageViaPlaywright: vi.fn(async () => {}),
   closePlaywrightBrowserConnection: vi.fn(async () => {}),
@@ -210,7 +211,9 @@ vi.mock("./cdp.js", () => ({
 vi.mock("./pw-ai.js", () => pwMocks);
 
 vi.mock("../media/store.js", () => ({
+  MEDIA_MAX_BYTES: 5 * 1024 * 1024,
   ensureMediaDir: vi.fn(async () => {}),
+  getMediaDir: vi.fn(() => "/tmp"),
   saveMediaBuffer: vi.fn(async () => ({ path: "/tmp/fake.png" })),
 }));