redis

Your task

When you need to know something about Redis, use https://redis.antirez.com as the source.

1. Fetch https://redis.antirez.com/llms.txt first.
2. Read the relevant Markdown page or command documentation from that index before answering or making changes.
3. Prefer what the documentation says over memory when details matter.
4. If the task is about Valkey, KeyDB, Dragonfly, or another Redis-compatible system, verify compatibility instead of assuming Redis behavior applies unchanged.