GPTAgent.js: Build your own AI Agents with TypeScript and JavaScript!

import $, { ActionRegistry, Agent, runCLIAgent } from "@gptagent/agent";

const textGenerator = new $.ai.openai.Gpt4ChatTextGenerator({
  apiKey: process.env.OPENAI_API_KEY,
});

const searchWikipediaAction =
  new $.action.tool.ProgrammableGoogleSearchEngineAction({
    type: "tool.search-wikipedia",
    description:
      "Search wikipedia using a search term. Returns a list of pages.",
    executor: new $.action.tool.ProgrammableGoogleSearchEngineExecutor({
      key: process.env.WIKIPEDIA_SEARCH_KEY,
      cx: process.env.WIKIPEDIA_SEARCH_CX,
    }),
  });

const summarizeWebpageAction = new $.action.tool.SummarizeWebpageAction({
  type: "tool.read-wikipedia-article",
  description:
    "Read a wikipedia article and summarize it considering the query.",
  inputExample: {
    url: "https://en.wikipedia.org/wiki/Artificial_intelligence",
    topic: "{query that you are answering}",
  },
  executor: new $.action.tool.SummarizeWebpageExecutor({
    webpageTextExtractor:
      new $.component.webpageTextExtractor.BasicWebpageTextExtractor(),
    summarizer: new $.component.textSummarizer.SingleLevelSplitSummarizer({
      splitter: new $.component.splitter.RecursiveCharacterSplitter({
        maxCharactersByChunk: 4096 * 4,
      }),
      summarizer: new $.component.textSummarizer.ChatTextSummarizer({
        chatTextGenerator: textGenerator,
      }),
    }),
  }),
});

runCLIAgent({
  agent: new Agent({
    name: "Wikipedia QA",
    rootStep: new $.step.DynamicCompositeStep({
      nextStepGenerator: new $.step.BasicNextStepGenerator({
        role: `You are an knowledge worker that answers questions using Wikipedia content.`,
        constraints: `Make sure all facts for your answer are from Wikipedia articles that you have read.`,
        actionRegistry: new ActionRegistry({
          actions: [searchWikipediaAction, summarizeWebpageAction],
          format: new $.action.format.JsonActionFormat(),
        }),
        textGenerator,
      }),
    }),
  }),
});