AgentMail

import { createInterface } from 'node:readline/promises' import { createAgent, SystemMessage, HumanMessage, AIMessage } from 'langchain' import { AgentMailToolkit } from 'agentmail-toolkit/langchain' const terminal = createInterface({ input: process.stdin, output: process.stdout }) const agent = createAgent({ model: 'openai:gpt-4o', tools: new AgentMailToolkit().getTools(), systemPrompt: 'You are an email agent created by AgentMail that can create and manage inboxes as well as send and receive emails.', }) const messages: (SystemMessage | HumanMessage | AIMessage)[] = [] async function main() { while (true) { const prompt = await terminal.question('\nUser:\n\n') if (prompt.toLowerCase() === 'q') process.exit(0) messages.push(new HumanMessage(prompt)) process.stdout.write('\nAssistant:\n\n') const result = await agent.stream({ messages }, { streamMode: 'messages' }) let response = '' for await (const [chunk, _] of result) { if (chunk.type !== 'ai') continue process.stdout.write(chunk.text) response += chunk.text } process.stdout.write('\n') messages.push(new AIMessage(response)) } } main().catch(console.error)