import * as Sentry from '@sentry/cloudflare'; // or '@sentry/vercel-edge'
import { StateGraph, START, END, MessagesAnnotation } from '@langchain/langgraph';

// Create and instrument the graph
const graph = new StateGraph(MessagesAnnotation)
  .addNode('agent', agentFn)
  .addEdge(START, 'agent')
  .addEdge('agent', END);

Sentry.instrumentLangGraph(graph, {
  recordInputs: true,
  recordOutputs: true,
});

const compiled = graph.compile({ name: 'weather_assistant' });

await compiled.invoke({
  messages: [{ role: 'user', content: 'What is the weather in SF?' }],
});