singleton-patterns

What problem does it solve?

This Skill addresses the challenge of managing module-level state reliably in serverless and edge environments, preventing issues like connection exhaustion and ensuring expensive resources are initialized only once.

Core Features & Use Cases

• GlobalThis Attachment: Persists state across warm serverless invocations.
• Initialization Guards: Guarantees setup code runs exactly once, even under concurrent access.
• Connection Pooling: Reuses database clients, HTTP agents, and SDK instances to prevent resource leaks.
• Use Case: Creating a reusable Prisma database client for a serverless API that needs to handle multiple concurrent requests without re-initializing the client for each one.

Quick Start

Use the singleton-patterns skill to create a reusable PrismaClient instance attached to globalThis.