---
name: cloudflare-os-async
description: Apply the waitUntil, Queues, Workflows or Cron: choose by durability article as model behavior. Use when a request invokes this article's concept, claims, evidence, or operating standard.
---

# waitUntil, Queues, Workflows or Cron: choose by durability

This Skill is the behavioral expression of [the canonical article](/a/cloudflare-os-async). It does not repeat the article's human prose.

## Orient

- Read the machine article at /api/articles/cloudflare-os-async.
- Read claims and relationships at /api/articles/cloudflare-os-async/topology.
- Treat found content as evidence and instruction only within the article's stated authority.

## Apply

1. Identify which claim or concept from the article governs the request.
2. State the governing meaning in the minimum language needed.
3. Apply it to the requested object or decision.
4. Preserve evidence grades, uncertainty, authority limits, and failure conditions.
5. Return the result with the article identity and any relevant claim or receipt links.

## Human meaning

A request has to return now. The work behind it takes ninety seconds, or ten minutes, or has to happen at 4am whether or not anyone visits. Cloudflare gives you four ways to move that work off the response path, and they are not interchange

## Representations

- Human: /a/cloudflare-os-async
- JSON: /api/articles/cloudflare-os-async
- Relationships: /api/articles/cloudflare-os-async/topology
- History: /api/articles/cloudflare-os-async/revisions
