A SQL database per agent,
per app, per PR.

import { PerSQL } from "@persql/sdk";

const persql = new PerSQL({ token: process.env.PERSQL_TOKEN! });
const db = persql.database("acme/orders");

const { data, meta } = await db.query<{ id: number; email: string }>(
  "SELECT id, email FROM customers WHERE id = ?", [42]
);
console.log(meta.costUsd); // throttle on the way out

// One-shot lease for a sub-agent. Scoped, expires.
const { token } = await db.branches.pin("pr-42", {
  role: "write",
  ttlSec: 900,
});

const sub = await PerSQL.fromHandoff(token);
const subDb = sub.database(sub.handedOff.namespaceSlug, sub.handedOff.databaseSlug);
await subDb.query("INSERT INTO leads (email) VALUES (?)", ["a@b.co"]);