Harden URL checks in the OpenAI CUA templates.

Make clipboard-based blocklist lookups best-effort so browser runs don't fail on empty reads, and translate forward actions in pending batches to keep navigation support consistent.

Made-with: Cursor

Author: rgarcia

pkg/templates/python/openai-computer-use/agent/agent.py

@@ -340,8 +340,14 @@ def handle_item(self, item):
             }
 
             if self.computer.get_environment() == "browser":
-                current_url = self.computer.get_current_url()
-                check_blocklisted_url(current_url)
+                try:
+                    current_url = self.computer.get_current_url()
+                    check_blocklisted_url(current_url)
+                except Exception as exc:
+                    self._emit_event(
+                        "backend",
+                        {"op": "get_current_url.skipped", "detail": str(exc)},
+                    )
 
             return [call_output]
         return []

pkg/templates/python/openai-computer-use/computers/kernel_computer.py

@@ -312,6 +312,9 @@ def _build_pending_batch(actions: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
         if action_type == "back":
             pending.extend(_back_batch_actions())
             continue
+        if action_type == "forward":
+            pending.extend(_forward_batch_actions())
+            continue
         if action_type in ("url", "screenshot"):
             continue
         raise ValueError(f"Unknown CUA action type: {action_type}")

pkg/templates/typescript/openai-computer-use/lib/agent.ts

@@ -202,8 +202,17 @@ export class Agent {
         if (!this.ackCb(msg)) throw new Error(`Safety check failed: ${msg}`);
       }
 
-      const currentUrl = await this.computer.getCurrentUrl();
-      utils.checkBlocklistedUrl(currentUrl);
+      if (this.computer.getEnvironment() === 'browser') {
+        try {
+          const currentUrl = await this.computer.getCurrentUrl();
+          utils.checkBlocklistedUrl(currentUrl);
+        } catch (error) {
+          this.emit('backend', {
+            op: 'get_current_url.skipped',
+            detail: error instanceof Error ? error.message : String(error),
+          });
+        }
+      }
 
       const screenshotOutput = {
         type: 'computer_screenshot',

pkg/templates/typescript/openai-computer-use/lib/kernel-computer.ts

@@ -345,6 +345,10 @@ function buildPendingBatch(actions: CuaAction[]): BatchAction[] {
       pending.push(...backBatchActions());
       continue;
     }
+    if (actionType === 'forward') {
+      pending.push(...forwardBatchActions());
+      continue;
+    }
     if (actionType === 'url' || actionType === 'screenshot') {
       continue;
     }