useful for when you need to find something on or summarize a webpage. input should be a comma separated list of "valid URL including protocol","what you want to find on the page or empty string for a summary".
- 当智能体仅使用 URL 调用它时，它会生成网站内容的摘要
- 当智能体使用 URL 和要查找的内容描述调用它时，它将改用内存中的向量存储来查找最相关的片段并进行摘要
安装
要使用 Webbrowser 工具，您需要安装依赖项：npm
npm install cheerio axios
独立使用
import { WebBrowser } from "@langchain/classic/tools/webbrowser";
import { ChatOpenAI, OpenAIEmbeddings } from "@langchain/openai";
export async function run() {
const model = new ChatOpenAI({ model: "gpt-5.4-mini", temperature: 0 });
const embeddings = new OpenAIEmbeddings();
const browser = new WebBrowser({ model, embeddings });
const result = await browser.invoke(
`"https://www.themarginalian.org/2015/04/09/find-your-bliss-joseph-campbell-power-of-myth","who is joseph campbell"`
);
console.log(result);
/*
Joseph Campbell was a mythologist and writer who discussed spirituality, psychological archetypes, cultural myths, and the mythology of self. He sat down with Bill Moyers for a lengthy conversation at George Lucas’s Skywalker Ranch in California, which continued the following year at the American Museum of Natural History in New York. The resulting 24 hours of raw footage were edited down to six one-hour episodes and broadcast on PBS in 1988, shortly after Campbell’s death, in what became one of the most popular in the history of public television.
Relevant Links:
- [The Holstee Manifesto](http://holstee.com/manifesto-bp)
- [The Silent Music of the Mind: Remembering Oliver Sacks](https://www.themarginalian.org/2015/08/31/remembering-oliver-sacks)
- [Joseph Campbell series](http://billmoyers.com/spotlight/download-joseph-campbell-and-the-power-of-myth-audio/)
- [Bill Moyers](https://www.themarginalian.org/tag/bill-moyers/)
- [books](https://www.themarginalian.org/tag/books/)
*/
}
智能体中使用
@langchain/community 包已不再维护。从 @langchain/community 导入的示例可能过时或无法使用。请谨慎使用。import { OpenAI, OpenAIEmbeddings } from "@langchain/openai";
import { initializeAgentExecutorWithOptions } from "@langchain/classic/agents";
import { Calculator } from "@langchain/community/tools/calculator";
import { WebBrowser } from "@langchain/classic/tools/webbrowser";
import { SerpAPI } from "@langchain/community/tools/serpapi";
export const run = async () => {
const model = new OpenAI({ temperature: 0 });
const embeddings = new OpenAIEmbeddings();
const tools = [
new SerpAPI(process.env.SERPAPI_API_KEY, {
location: "Austin,Texas,United States",
hl: "en",
gl: "us",
}),
new Calculator(),
new WebBrowser({ model, embeddings }),
];
const executor = await initializeAgentExecutorWithOptions(tools, model, {
agentType: "zero-shot-react-description",
verbose: true,
});
console.log("Loaded agent.");
const input = `What is the word of the day on merriam webster. What is the top result on google for that word`;
console.log(`Executing with input "${input}"...`);
const result = await executor.invoke({ input });
/*
Entering new agent_executor chain...
I need to find the word of the day on Merriam Webster and then search for it on Google
Action: web-browser
Action Input: "https://www.merriam-webster.com/word-of-the-day", ""
Summary: Merriam-Webster is a website that provides users with a variety of resources, including a dictionary, thesaurus, word finder, word of the day, games and quizzes, and more. The website also allows users to log in and save words, view recents, and access their account settings. The Word of the Day for April 14, 2023 is "lackadaisical", which means lacking in life, spirit, or zest. The website also provides quizzes and games to help users build their vocabulary.
Relevant Links:
- [Test Your Vocabulary](https://www.merriam-webster.com/games)
- [Thesaurus](https://www.merriam-webster.com/thesaurus)
- [Word Finder](https://www.merriam-webster.com/wordfinder)
- [Word of the Day](https://www.merriam-webster.com/word-of-the-day)
- [Shop](https://shop.merriam-webster.com/?utm_source=mwsite&utm_medium=nav&utm_content=
I now need to search for the word of the day on Google
Action: search
Action Input: "lackadaisical"
lackadaisical implies a carefree indifference marked by half-hearted efforts. lackadaisical college seniors pretending to study. listless suggests a lack of ...
Finished chain.
*/
console.log(`Got output ${JSON.stringify(result, null, 2)}`);
/*
Got output {
"output": "The word of the day on Merriam Webster is \"lackadaisical\", which implies a carefree indifference marked by half-hearted efforts.",
"intermediateSteps": [
{
"action": {
"tool": "web-browser",
"toolInput": "https://www.merriam-webster.com/word-of-the-day\", ",
"log": " I need to find the word of the day on Merriam Webster and then search for it on Google\nAction: web-browser\nAction Input: \"https://www.merriam-webster.com/word-of-the-day\", \"\""
},
"observation": "\n\nSummary: Merriam-Webster is a website that provides users with a variety of resources, including a dictionary, thesaurus, word finder, word of the day, games and quizzes, and more. The website also allows users to log in and save words, view recents, and access their account settings. The Word of the Day for April 14, 2023 is \"lackadaisical\", which means lacking in life, spirit, or zest. The website also provides quizzes and games to help users build their vocabulary.\n\nRelevant Links: \n- [Test Your Vocabulary](https://www.merriam-webster.com/games)\n- [Thesaurus](https://www.merriam-webster.com/thesaurus)\n- [Word Finder](https://www.merriam-webster.com/wordfinder)\n- [Word of the Day](https://www.merriam-webster.com/word-of-the-day)\n- [Shop](https://shop.merriam-webster.com/?utm_source=mwsite&utm_medium=nav&utm_content="
},
{
"action": {
"tool": "search",
"toolInput": "lackadaisical",
"log": " I now need to search for the word of the day on Google\nAction: search\nAction Input: \"lackadaisical\""
},
"observation": "lackadaisical implies a carefree indifference marked by half-hearted efforts. lackadaisical college seniors pretending to study. listless suggests a lack of ..."
}
]
}
*/
};
相关
官方原文：src/oss/javascript/integrations/tools/webbrowser.mdx · 非官方翻译，译文由 AI 生成，以英文原文为准。