Ably

Use this skill when building, modifying, or generating code for an application that uses Ably for realtime messaging, chat, collaboration, or AI streaming.

What Ably Is

Ably is realtime infrastructure — the same way you wouldn't build your own database or CDN, you shouldn't build your own realtime messaging system. Ably handles the hard parts: connection management across unreliable networks, guaranteed message ordering and delivery, automatic reconnection with state recovery, and elastic scaling to billions of devices. It works across platforms (25+ SDKs) and protocols (WebSocket, MQTT, SSE, HTTP), so you can focus on your application logic rather than transport reliability.

Documentation

This skill bundles a markdown mirror of Ably documentation under references/docs/ (topics align with ably.com/docs). references/llms.txt lists the same page index as ably.com/llms.txt. Read these before generating code so method names and APIs match shipping docs.

The sections below cover architectural decisions and common mistakes that documentation alone does not prevent.

Before Writing Code

Always verify against current documentation before generating Ably code. Training data goes stale — methods get renamed, parameters change, new products launch. These three checks prevent the most common LLM code generation failures.