Gemma issues

[Marktemco]

I am trying to change to Gemma using the workers-ai-provider.

When I use @cf/google/gemma-3-12b-it there is no replies from the agent.
When I use @cf/google/gemma-2b-it-lora the bot responds but disregarding the System prompt and I am unable to use tools.

I know that Gemma does not use the "System" prompt. I have been making changes to the code but nothing seems to work.

My latest attempt was this:

const systemPrompt = { role: "system", content:You are a pirate. Always respond like a pirate, matey!

${unstable_getSchedulePrompt({ date: new Date() })}

If the user asks to schedule a task, use the schedule tool to schedule the task.
`
};

    const finalMessages = [
      systemPrompt,
      ...processedMessages,
    ];

 

    const result = streamText({
      model,
      messages: finalMessages,
      tools: allTools,
      onFinish: async (args) => {
        onFinish(args as Parameters<StreamTextOnFinishCallback<ToolSet>>[0]);
      },
      onError: (error) => {
        console.error("Error while streaming:", error);
      },
      maxSteps: 10,
    });

    // Merge the AI response stream with tool execution outputs
    result.mergeIntoDataStream(dataStream);
  },
});

`