---
title: "Bringing more agent harnesses and frameworks to Cloudflare, starting with Flue"
url: https://daily.dev/posts/bringing-more-agent-harnesses-and-frameworks-to-cloudflare-starting-with-flue-zzfesfefy
source_url: https://blog.cloudflare.com/agents-platform-flue-sdk
type: article
source: "Cloudflare"
published: 2026-06-17T21:47:14.473Z
updated: 2026-06-18T08:20:15.490Z
tags: ["ai-agents", "mcp", "cloudflare"]
reading_time: 11
upvotes: 2
comments: 0
language: en
---

> ## Documentation Index
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# Bringing more agent harnesses and frameworks to Cloudflare, starting with Flue

**[Cloudflare](https://daily.dev/sources/cloudflare)** · 11 min read · 2 upvotes · 0 comments

## Summary

Cloudflare is opening up its Agents SDK as a base runtime layer that any agent harness or framework can build on. The post introduces a three-layer stack for production AI agents: a framework (Flue, built by the Astro team), a harness (Pi, Project Think), and the runtime platform (Cloudflare Agents SDK). Flue 1.0 Beta ships with declarative agent definitions, multi-platform support, and deep Cloudflare integration via Durable Objects. Key SDK primitives covered include durable execution via Fibers (runFiber/stash/onFiberRecovered), sandboxed code execution via Dynamic Workers (@cloudflare/codemode), a durable virtual filesystem backed by SQLite (@cloudflare/shell), and dynamic multi-step workflows. The post explains how each primitive solves a specific distributed systems problem agents face in production: crash recovery, secure code execution, persistent filesystems, and long-running orchestration.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://blog.cloudflare.com/agents-platform-flue-sdk>

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---

Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#mcp](https://daily.dev/tags/mcp), [#cloudflare](https://daily.dev/tags/cloudflare)

[View this post on daily.dev](https://daily.dev/posts/bringing-more-agent-harnesses-and-frameworks-to-cloudflare-starting-with-flue-zzfesfefy)