Load tool data and wait for user input (execute + addToolResult)

[mattmueller-stripe]

Hey folks, I'm building a product catalog tool.

It roughly looks like this:

  tool({
    description: "Search for products",
    parameters: z.object({
      query: z.string().describe("The search query"),
    }),
    execute: async (
      { query },
      { toolCallId }
    ): Promise<SearchResults> => {
      return await searchProducts(query)
    },
  });

Once I display the catalog, I'd like to give users an opportunity to select an item from that catalog. However when you call execute it continues the conversation.

I'd like the chat wait for user input before continuing. I was able to get it to this working with some prompt engineering, roughly what you do here:
https://github.com/vercel/ai-chatbot/blob/01f589b6031a5fbbc2f844e2b0534249eb700058/lib/ai/prompts.ts#L8-L31

Which feels pretty hacky. Any better ways of doing this?

Thanks!