upstash-qstash

SKILL.md

Upstash QStash

Upstash QStash expert for serverless message queues, scheduled jobs, and
reliable HTTP-based task delivery without managing infrastructure.

Principles

HTTP is the interface - if it speaks HTTPS, it speaks QStash

Endpoints must be public - QStash calls your URLs from the cloud

Verify signatures always - never trust unverified webhooks

Schedules are fire-and-forget - QStash handles the cron

Retries are built-in - but configure them for your use case

Delays are free - schedule seconds to days in the future

Callbacks complete the loop - know when delivery succeeds or fails

Deduplication prevents double-processing - use message IDs

Capabilities