theprimeagen/skills/cloudflare-hyperdrive
skills/cloudflare-hyperdrive/SKILL.md
Cloudflare Hyperdrive connection usage rules
$ install --global
skillsauthnpx skillsauth add theprimeagen/skills skills/cloudflare-hyperdriveInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Last scanned: Apr 16, 2026, 3:14 PM14.1s1 file scanned
SKILL.md
- description:
- Cloudflare Hyperdrive connection usage rules
- globs:
- src/**/*.ts
- alwaysApply:
- false
Cloudflare Hyperdrive
Rules
- Create a new database client/connection inside each Worker invocation (
fetch,queue,scheduled, or Durable Object method); never create global clients or driver pools (new Pool(),createPool()). Hyperdrive manages the shared origin pool. - Use the Hyperdrive binding directly: Postgres uses
env.HYPERDRIVE.connectionString - Let Hyperdrive manage connection lifecycle: keep transactions short, avoid long-lived pinned connections, and do not call
client.end()/connection.end()for routine per-request cleanup.
Example 1: PostgreSQL (Hyperdrive handles pooling)
import { Client } from "pg";
export default {
async fetch(_request, env): Promise<Response> {
const client = new Client({
connectionString: env.HYPERDRIVE.connectionString,
});
await client.connect();
const result = await client.query("SELECT NOW() AS now");
return Response.json(result.rows[0]);
},
} satisfies ExportedHandler<{ HYPERDRIVE: Hyperdrive }>;
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