New updates and improvements at Cloudflare.
Workflows now supports up to 4,500 concurrent (running) instances, up from the previous limit of 100. This limit will continue to increase during the Workflows open beta. This increase applies to all users on the Workers Paid plan, and takes effect immediately.
Review the Workflows limits documentation and/or dive into the get started guide to start building on Workflows.
We've added an example prompt to help you get started with building AI agents and applications on Cloudflare Workers, including Workflows, Durable Objects, and Workers KV.
You can use this prompt with your favorite AI model, including Claude 3.5 Sonnet, OpenAI's o3-mini, Gemini 2.0 Flash, or Llama 3.3 on Workers AI. Models with large context windows will allow you to paste the prompt directly: provide your own prompt within the <user_prompt></user_prompt> tags.
{paste_prompt_here}
<user_prompt>
user: Build an AI agent using Cloudflare Workflows. The Workflow should run when a new GitHub issue is opened on a specific project with the label 'help' or 'bug', and attempt to help the user troubleshoot the issue by calling the OpenAI API with the issue title and description, and a clear, structured prompt that asks the model to suggest 1-3 possible solutions to the issue. Any code snippets should be formatted in Markdown code blocks. Documentation and sources should be referenced at the bottom of the response. The agent should then post the response to the GitHub issue. The agent should run as the provided GitHub bot account.
</user_prompt>This prompt is still experimental, but we encourage you to try it out and provide feedback ↗︎.
Workflows (beta) now allows you to define up to 1024 steps. sleep steps do not count against this limit.
We've also added:
instanceId as property to the WorkflowEvent type, allowing you to retrieve the current instance ID from within a running Workflow instancepause and resume for Workflow instances in a queued state.We're continuing to work on increases to the number of concurrent Workflow instances, steps, and support for a new waitForEvent API over the coming weeks.
Workflows is now in open beta, and available to any developer a free or paid Workers plan.
Workflows allow you to build multi-step applications that can automatically retry, persist state and run for minutes, hours, days, or weeks. Workflows introduces a programming model that makes it easier to build reliable, long-running tasks, observe as they progress, and programmatically trigger instances based on events across your services.
You can get started with Workflows by following our get started guide and/or using npm create cloudflare to pull down the starter project:
npm create cloudflare@latest workflows-starter -- --template "cloudflare/workflows-starter"You can open the src/index.ts file, extend it, and use wrangler deploy to deploy your first Workflow. From there, you can: