fix(browser): remove stale snapshotForAI references

extensions/browser/src/browser-tool.actions.ts

@@ -157,7 +157,7 @@ function canRetryChromeActWithoutTargetId(request: Parameters<typeof browserAct>
 
 function isAriaRefsUnsupportedError(err: unknown): boolean {
   const msg = String(err).toLowerCase();
-  return msg.includes("refs=aria") && msg.includes("_snapshotforai");
+  return msg.includes("refs=aria") && msg.includes("not support");
 }
 
 function withRoleRefsFallback<T extends { refs?: "aria" | "role" }>(

extensions/browser/src/browser-tool.test.ts

@@ -512,9 +512,7 @@ describe("browser tool snapshot maxChars", () => {
   it("falls back to role refs when a node snapshot cannot provide aria refs", async () => {
     mockSingleBrowserProxyNode();
     gatewayMocks.callGatewayTool
-      .mockRejectedValueOnce(
-        new Error("INVALID_REQUEST: Error: refs=aria requires Playwright _snapshotForAI support."),
-      )
+      .mockRejectedValueOnce(new Error("INVALID_REQUEST: Error: refs=aria not supported."))
       .mockResolvedValueOnce({
         ok: true,
         payload: {

extensions/browser/src/browser/pw-ai.ts

@@ -13,7 +13,6 @@ export {
   getPageForTargetId,
   listPagesViaPlaywright,
   refLocator,
-  type WithSnapshotForAI,
 } from "./pw-session.js";
 
 export {

extensions/browser/src/browser/pw-session.ts

@@ -57,13 +57,6 @@ export type BrowserNetworkRequest = {
   failureText?: string;
 };
 
-type SnapshotForAIResult = { full: string; incremental?: string };
-type SnapshotForAIOptions = { timeout?: number; track?: string };
-
-export type WithSnapshotForAI = {
-  _snapshotForAI?: (options?: SnapshotForAIOptions) => Promise<SnapshotForAIResult>;
-};
-
 type TargetInfoResponse = {
   targetInfo?: {
     targetId?: string;

extensions/browser/src/browser/routes/agent.snapshot.ts

@@ -481,22 +481,14 @@ export function registerBrowserAgentSnapshotRoutes(
 
           const snap = plan.wantsRoleSnapshot
             ? await pw.snapshotRoleViaPlaywright(roleSnapshotArgs)
-            : await pw
-                .snapshotAiViaPlaywright({
-                  cdpUrl: profileCtx.profile.cdpUrl,
-                  targetId: tab.targetId,
-                  ssrfPolicy: ctx.state().resolved.ssrfPolicy,
-                  ...(typeof plan.resolvedMaxChars === "number"
-                    ? { maxChars: plan.resolvedMaxChars }
-                    : {}),
-                })
-                .catch(async (err) => {
-                  // Public-API fallback when Playwright's private _snapshotForAI is missing.
-                  if (String(err).toLowerCase().includes("_snapshotforai")) {
-                    return await pw.snapshotRoleViaPlaywright(roleSnapshotArgs);
-                  }
-                  throw err;
-                });
+            : await pw.snapshotAiViaPlaywright({
+                cdpUrl: profileCtx.profile.cdpUrl,
+                targetId: tab.targetId,
+                ssrfPolicy: ctx.state().resolved.ssrfPolicy,
+                ...(typeof plan.resolvedMaxChars === "number"
+                  ? { maxChars: plan.resolvedMaxChars }
+                  : {}),
+              });
           if (plan.labels) {
             const labeled = await pw.screenshotWithLabelsViaPlaywright({
               cdpUrl: profileCtx.profile.cdpUrl,