Debug mode for
AI agents

import { trail } from "agentcrumbs"; // @crumbs
const crumb = trail("api-gateway"); // @crumbs

export async function handleCheckout(req: Request) {
  crumb("checkout started", { cartId: req.params.id }); // @crumbs

  const user = await authClient.verify(req.token);
  crumb("user verified", { userId: user.id }); // @crumbs

  const charge = await billingClient.charge(user, req.cart);
  crumb("charge result", { status: charge.status }); // @crumbs

  return { orderId: charge.orderId };
}

import { trail } from "agentcrumbs"; // @crumbs
const crumb = trail("auth-service"); // @crumbs

export async function verify(token: string) {
  crumb("token received", { len: token.length }); // @crumbs

  const decoded = jwt.verify(token, SECRET);
  crumb("token decoded", { userId: decoded.sub }); // @crumbs

  const user = await db.users.findById(decoded.sub);
  crumb("user lookup", { found: !!user, plan: user?.plan }); // @crumbs

  return user;
}

import { trail } from "agentcrumbs"; // @crumbs
const crumb = trail("billing"); // @crumbs

export async function charge(user: User, cart: Cart) {
  crumb("charging", { userId: user.id, total: cart.total }); // @crumbs

  const result = await stripe.charges.create({
    amount: cart.total,
    customer: user.stripeId,
  });
  crumb("stripe response", { status: result.status }); // @crumbs

  return { orderId: result.id, status: result.status };
}