diff --git a/integration-tests/sdk-typescript/permission-control.test.ts b/integration-tests/sdk-typescript/permission-control.test.ts
index 31c7768a..adeb6792 100644
--- a/integration-tests/sdk-typescript/permission-control.test.ts
+++ b/integration-tests/sdk-typescript/permission-control.test.ts
@@ -555,6 +555,15 @@ describe('Permission Control (E2E)', () => {
           ...SHARED_TEST_OPTIONS,
           cwd: testDir,
           permissionMode: 'default',
+          timeout: {
+            /**
+             * We use a short control request timeout and
+             * wait till the time exceeded to test if
+             * an immediate close() will raise an query close
+             * error and no other uncaught timeout error
+             */
+            controlRequest: 5000,
+          },
         },
       });
 
@@ -563,7 +572,9 @@ describe('Permission Control (E2E)', () => {
       await expect(q.setPermissionMode('yolo')).rejects.toThrow(
         'Query is closed',
       );
-    });
+
+      await new Promise((resolve) => setTimeout(resolve, 8000));
+    }, 10_000);
   });
 
   describe('canUseTool and setPermissionMode integration', () => {
diff --git a/packages/sdk-typescript/README.md b/packages/sdk-typescript/README.md
index f5b8fc8e..38f5a375 100644
--- a/packages/sdk-typescript/README.md
+++ b/packages/sdk-typescript/README.md
@@ -13,7 +13,7 @@ npm install @qwen-code/sdk-typescript
 ## Requirements
 
 - Node.js >= 20.0.0
-- [Qwen Code](https://github.com/QwenLM/qwen-code) installed and accessible in PATH
+- [Qwen Code](https://github.com/QwenLM/qwen-code) >= 0.4.0 (stable) installed and accessible in PATH
 
 > **Note for nvm users**: If you use nvm to manage Node.js versions, the SDK may not be able to auto-detect the Qwen Code executable. You should explicitly set the `pathToQwenExecutable` option to the full path of the `qwen` binary.
 
diff --git a/packages/sdk-typescript/src/query/Query.ts b/packages/sdk-typescript/src/query/Query.ts
index 81edc48f..88a0e7f1 100644
--- a/packages/sdk-typescript/src/query/Query.ts
+++ b/packages/sdk-typescript/src/query/Query.ts
@@ -620,6 +620,10 @@ export class Query implements AsyncIterable<SDKMessage> {
     subtype: string,
     data: Record<string, unknown> = {},
   ): Promise<Record<string, unknown> | null> {
+    if (this.closed) {
+      return Promise.reject(new Error('Query is closed'));
+    }
+
     const requestId = randomUUID();
 
     const request: CLIControlRequest = {
@@ -688,12 +692,13 @@ export class Query implements AsyncIterable<SDKMessage> {
     for (const pending of this.pendingControlRequests.values()) {
       pending.abortController.abort();
       clearTimeout(pending.timeout);
+      pending.reject(new Error('Query is closed'));
     }
     this.pendingControlRequests.clear();
 
     // Clean up pending MCP responses
     for (const pending of this.pendingMcpResponses.values()) {
-      pending.reject(new Error('Query closed'));
+      pending.reject(new Error('Query is closed'));
     }
     this.pendingMcpResponses.clear();
 
@@ -719,7 +724,7 @@ export class Query implements AsyncIterable<SDKMessage> {
       }
     }
     this.sdkMcpTransports.clear();
-    logger.info('Query closed');
+    logger.info('Query is closed');
   }
 
   private async *readSdkMessages(): AsyncGenerator<SDKMessage> {
@@ -821,28 +826,16 @@ export class Query implements AsyncIterable<SDKMessage> {
   }
 
   async interrupt(): Promise<void> {
-    if (this.closed) {
-      throw new Error('Query is closed');
-    }
-
     await this.sendControlRequest(ControlRequestType.INTERRUPT);
   }
 
   async setPermissionMode(mode: string): Promise<void> {
-    if (this.closed) {
-      throw new Error('Query is closed');
-    }
-
     await this.sendControlRequest(ControlRequestType.SET_PERMISSION_MODE, {
       mode,
     });
   }
 
   async setModel(model: string): Promise<void> {
-    if (this.closed) {
-      throw new Error('Query is closed');
-    }
-
     await this.sendControlRequest(ControlRequestType.SET_MODEL, { model });
   }
 
@@ -853,10 +846,6 @@ export class Query implements AsyncIterable<SDKMessage> {
    * @throws Error if query is closed
    */
   async supportedCommands(): Promise<Record<string, unknown> | null> {
-    if (this.closed) {
-      throw new Error('Query is closed');
-    }
-
     return this.sendControlRequest(ControlRequestType.SUPPORTED_COMMANDS);
   }
 
@@ -867,10 +856,6 @@ export class Query implements AsyncIterable<SDKMessage> {
    * @throws Error if query is closed
    */
   async mcpServerStatus(): Promise<Record<string, unknown> | null> {
-    if (this.closed) {
-      throw new Error('Query is closed');
-    }
-
     return this.sendControlRequest(ControlRequestType.MCP_SERVER_STATUS);
   }