feat: Allow cancellation of in-progress Gemini requests and pre-execution checks

- Implements cancellation for Gemini requests while they are actively being processed by the model.
- Extends cancellation support to the  logic within tools. This allows users to cancel operations during the phase where the system is determining if a tool execution requires user confirmation, which can include potentially long-running pre-flight checks or LLM-based corrections.
- Underlying LLM calls for edit corrections (within  and ) and next speaker checks can now also be cancelled.
- Previously, cancellation of the main request was not possible until text started streaming, and pre-execution checks were not cancellable.
- This change leverages the updated SDK's ability to accept an abort token and threads s throughout the request, tool execution, and pre-execution check lifecycle.

Fixes https://github.com/google-gemini/gemini-cli/issues/531

1 files changed, 5 insertions, 2 deletions

diff --git a/packages/cli/src/ui/hooks/useToolScheduler.ts b/packages/cli/src/ui/hooks/useToolScheduler.ts
index f1eee9fd..7d8cfbe4 100644
--- a/packages/cli/src/ui/hooks/useToolScheduler.ts
+++ b/packages/cli/src/ui/hooks/useToolScheduler.ts
@@ -142,7 +142,10 @@ export function useToolScheduler(
 
         const { request: r, tool } = initialCall;
         try {
-          const userApproval = await tool.shouldConfirmExecute(r.args);
+          const userApproval = await tool.shouldConfirmExecute(
+            r.args,
+            abortController.signal,
+          );
           if (userApproval) {
             // Confirmation is needed. Update status to 'awaiting_approval'.
             setToolCalls(
@@ -183,7 +186,7 @@ export function useToolScheduler(
         }
       });
     },
-    [isRunning, setToolCalls, toolRegistry],
+    [isRunning, setToolCalls, toolRegistry, abortController.signal],
   );
 
   const cancel = useCallback(