Project Think: Building the next generation of AI agents on Cloudflare

Today we introduce Project Think: the next generation of Agent SDK. Project Think consists of a set of new primitives for building long-running agents (persistent execution, subagents, sandbox code execution, persistent sessions) and a self-contained base class that ties them all together. Use the primitives to build exactly what you need, or use the base class to get started quickly.

Something happened earlier this year that changed the way we think about AI. Tools like pi, OpenClaw, Claude CodeAnd Codex proved to be a simple but powerful idea: give an LLM the ability to read files, write code, run it, and remember what it’s learned, and you get something that looks less like a developer tool and more like an all-purpose assistant.

These coding agents no longer just write code. People use them to manage calendars, analyze records, negotiate purchases, file taxes, and automate entire business processes. The pattern is always the same: the agent reads the context, the reasons for…