Bringing more agent harnesses and frameworks to Cloudflare, starting with Flue

This post introduces the Cloudflare Agents SDK as a foundational layer for building production-grade AI agents, providing primitives like durable execution, dynamic code execution, and a durable filesystem. It also highlights Flue, a new open-source framework built on the SDK, which simplifies agent development through a declarative approach and integrates with various platforms. The post details how the Agents SDK addresses key challenges for agent harnesses, such as durable execution via Fibers, secure code execution using Code Mode with Dynamic Workers, and persistent file systems with @cloudflare/shell, enabling agents to run reliably at scale.