fix(core): prevent followup suggestion I/O from appearing in tool call UI

packages/core/src/core/loggingContentGenerator/loggingContentGenerator.ts

@@ -74,6 +74,15 @@ export class LoggingContentGenerator implements ContentGenerator {
     return this.wrapped;
   }
 
+  /**
+   * Returns true if the promptId belongs to an internal background operation
+   * (e.g., suggestion generation, forked queries) whose input/output should
+   * not be recorded to OpenAI logs or other persistent stores.
+   */
+  private isInternalPromptId(promptId: string): boolean {
+    return promptId === 'prompt_suggestion' || promptId === 'forked_query';
+  }
+
   private logApiRequest(
     contents: Content[],
     model: string,
@@ -143,8 +152,17 @@ export class LoggingContentGenerator implements ContentGenerator {
     userPromptId: string,
   ): Promise<GenerateContentResponse> {
     const startTime = Date.now();
-    this.logApiRequest(this.toContents(req.contents), req.model, userPromptId);
-    const openaiRequest = await this.buildOpenAIRequestForLogging(req);
+    const isInternal = this.isInternalPromptId(userPromptId);
+    if (!isInternal) {
+      this.logApiRequest(
+        this.toContents(req.contents),
+        req.model,
+        userPromptId,
+      );
+    }
+    const openaiRequest = isInternal
+      ? undefined
+      : await this.buildOpenAIRequestForLogging(req);
     try {
       const response = await this.wrapped.generateContent(req, userPromptId);
       const durationMs = Date.now() - startTime;
@@ -155,12 +173,16 @@ export class LoggingContentGenerator implements ContentGenerator {
         userPromptId,
         response.usageMetadata,
       );
-      await this.logOpenAIInteraction(openaiRequest, response);
+      if (!isInternal) {
+        await this.logOpenAIInteraction(openaiRequest, response);
+      }
       return response;
     } catch (error) {
       const durationMs = Date.now() - startTime;
       this._logApiError('', durationMs, error, req.model, userPromptId);
-      await this.logOpenAIInteraction(openaiRequest, undefined, error);
+      if (!isInternal) {
+        await this.logOpenAIInteraction(openaiRequest, undefined, error);
+      }
       throw error;
     }
   }
@@ -170,16 +192,27 @@ export class LoggingContentGenerator implements ContentGenerator {
     userPromptId: string,
   ): Promise<AsyncGenerator<GenerateContentResponse>> {
     const startTime = Date.now();
-    this.logApiRequest(this.toContents(req.contents), req.model, userPromptId);
-    const openaiRequest = await this.buildOpenAIRequestForLogging(req);
+    const isInternal = this.isInternalPromptId(userPromptId);
+    if (!isInternal) {
+      this.logApiRequest(
+        this.toContents(req.contents),
+        req.model,
+        userPromptId,
+      );
+    }
+    const openaiRequest = isInternal
+      ? undefined
+      : await this.buildOpenAIRequestForLogging(req);
 
     let stream: AsyncGenerator<GenerateContentResponse>;
     try {
       stream = await this.wrapped.generateContentStream(req, userPromptId);
     } catch (error) {
       const durationMs = Date.now() - startTime;
       this._logApiError('', durationMs, error, req.model, userPromptId);
-      await this.logOpenAIInteraction(openaiRequest, undefined, error);
+      if (!isInternal) {
+        await this.logOpenAIInteraction(openaiRequest, undefined, error);
+      }
       throw error;
     }
 

packages/core/src/followup/forkedQuery.ts

@@ -191,8 +191,10 @@ export async function runForkedQuery(
   const model = options?.model ?? params.model;
   const chat = createForkedChat(config, params);
 
-  // Build per-request config overrides for JSON schema if needed
-  const requestConfig: GenerateContentConfig = {};
+  // Build per-request config overrides for JSON schema if needed.
+  // Strip tools — forked queries are pure text completion and must never
+  // produce function calls or appear inside tool-call UI elements.
+  const requestConfig: GenerateContentConfig = { tools: [] };
   if (options?.abortSignal) {
     requestConfig.abortSignal = options.abortSignal;
   }

packages/core/src/telemetry/loggers.ts

@@ -121,6 +121,15 @@ function getCommonAttributes(config: Config): LogAttributes {
 
 export { getCommonAttributes };
 
+/**
+ * Returns true if the prompt_id belongs to an internal background operation
+ * (suggestion generation, forked queries) whose events should not be
+ * recorded to the chatRecordingService.
+ */
+function isInternalPromptId(promptId: string): boolean {
+  return promptId === 'prompt_suggestion' || promptId === 'forked_query';
+}
+
 export function logStartSession(
   config: Config,
   event: StartSessionEvent,
@@ -382,7 +391,9 @@ export function logApiError(config: Config, event: ApiErrorEvent): void {
     'event.timestamp': new Date().toISOString(),
   } as UiEvent;
   uiTelemetryService.addEvent(uiEvent);
-  config.getChatRecordingService()?.recordUiTelemetryEvent(uiEvent);
+  if (!isInternalPromptId(event.prompt_id)) {
+    config.getChatRecordingService()?.recordUiTelemetryEvent(uiEvent);
+  }
   QwenLogger.getInstance(config)?.logApiErrorEvent(event);
   if (!isTelemetrySdkInitialized()) return;
 
@@ -449,7 +460,9 @@ export function logApiResponse(config: Config, event: ApiResponseEvent): void {
     'event.timestamp': new Date().toISOString(),
   } as UiEvent;
   uiTelemetryService.addEvent(uiEvent);
-  config.getChatRecordingService()?.recordUiTelemetryEvent(uiEvent);
+  if (!isInternalPromptId(event.prompt_id)) {
+    config.getChatRecordingService()?.recordUiTelemetryEvent(uiEvent);
+  }
   QwenLogger.getInstance(config)?.logApiResponseEvent(event);
   if (!isTelemetrySdkInitialized()) return;
   const attributes: LogAttributes = {