Tool calling: cannot get it to call all tools correctly

[philmetzger]

I am using generateText with 2 tools used to "profile" a research author by name.
What I notice is it never calls both tools always. I basically want the ai to call all tools and then use that data to generate a summary of a author profile.

const { text } = await generateText({
        model: anthropic("claude-3-5-sonnet-20240620"),
        tools: {
          authorSearchApi: tool({
            description:
              "Find the author profile using Google Scholar. You must use this as well.",
            parameters: z.object({
              author: z.string().describe("The author to search for"),
            }),
            execute: async ({ author }) => {
              console.log(`authorSearchApi: Searching for ${author}`);
              try {
                const url = "https://www.searchapi.io/api/v1/search";
                const params = {
                  engine: "google_scholar",
                  q: `author:${author}`,
                  api_key: process.env.SEARCH_API_KEY,
                };

                const response = await axios.get(url, { params });
                const data = response.data;

                if (data.profiles && data.profiles.length > 0) {
                  const authorProfile = data.profiles[0];
                  return {
                    source: "google_scholar",
                    profile: authorProfile,
                    success: true,
                  };
                }

                console.log(`authorSearchApi: No results for ${author}`);
                return {
                  source: "google_scholar",
                  profile: null,
                  success: false,
                };
              } catch (error: any) {
                console.error(`authorSearchApi error:`, error.message);
                return {
                  source: "google_scholar",
                  profile: null,
                  success: false,
                  error: error.message,
                };
              }
            },
          }),
          semanticScholarTool: tool({
            description:
              "Find the author profile using Semantic Scholar. You must use this as well.",
            parameters: z.object({
              author: z.string().describe("The author to search for"),
            }),
            execute: async ({ author }) => {
              console.log(`semanticScholarTool: Searching for ${author}`);
              try {
                const url = `https://api.semanticscholar.org/graph/v1/author/search`;
                const params = {
                  query: author,
                  limit: 1,
                };

                const response = await axios.get(url, { params });
                const data = response.data;

                if (data?.data?.length > 0) {
                  const authorProfile = data.data[0];
                  return {
                    source: "semantic_scholar",
                    profile: authorProfile,
                    success: true,
                  };
                }

                console.log(`semanticScholarTool: No results for ${author}`);
                return {
                  source: "semantic_scholar",
                  profile: null,
                  success: false,
                };
              } catch (error: any) {
                console.error(`semanticScholarTool error:`, error.message);
                return {
                  source: "semantic_scholar",
                  profile: null,
                  success: false,
                  error: error.message,
                };
              }
            },
          }),
        },
        toolChoice: "required",
        maxSteps: 4,
        prompt: `Profile the research author: ${document.firstAuthor}. 
Use all tools first to get the best results. 
Analyze and combine all available information about the author from both sources if available.`,
      });

As usual sometimes it seems to do it and sometimes not.
I also notice something weird when it calls the semanticScholarTool, the author is some number.
semanticScholarTool: Searching for 2238659230

Any ideas to improve this?