Method createChatObject

packages/core/src/core/subagent.ts:552–615

(context: ContextState)

  }

  private async createChatObject(context: ContextState) {
    if (!this.promptConfig.systemPrompt && !this.promptConfig.initialMessages) {
      throw new Error(
        'PromptConfig must have either `systemPrompt` or `initialMessages` defined.',
      );
    }
    if (this.promptConfig.systemPrompt && this.promptConfig.initialMessages) {
      throw new Error(
        'PromptConfig cannot have both `systemPrompt` and `initialMessages` defined.',
      );
    }

    const envParts = await getEnvironmentContext(this.runtimeContext);
    const envHistory: Content[] = [
      { role: 'user', parts: envParts },
      { role: 'model', parts: [{ text: 'Got it. Thanks for the context!' }] },
    ];

    const start_history = [
      ...envHistory,
      ...(this.promptConfig.initialMessages ?? []),
    ];

    const systemInstruction = this.promptConfig.systemPrompt
      ? this.buildChatSystemPrompt(context)
      : undefined;

    try {
      const generationConfig: GenerateContentConfig & {
        systemInstruction?: string | Content;
      } = {
        temperature: this.modelConfig.temp,
        topP: this.modelConfig.top_p,
      };

      if (systemInstruction) {
        generationConfig.systemInstruction = systemInstruction;
      }

      const contentGenerator = await createContentGenerator(
        this.runtimeContext.getContentGeneratorConfig(),
        this.runtimeContext,
        this.runtimeContext.getSessionId(),
      );

      this.runtimeContext.setModel(this.modelConfig.model);

      return new AnusChat(
        this.runtimeContext,
        contentGenerator,
        generationConfig,
        start_history,
      );
    } catch (error) {
      await reportError(
        error,
        'Error initializing Anus chat session.',
        start_history,