PROJECT Think introduces a next generation of AI agents built on Cloudflare, expanding the Agents SDK with new primitives for durable, long‑running agents and a base class that wires them together. It adds durable execution with fibers, sub‑agents with isolated storage, persistent sessions that support tree-structured conversations, and sandboxed code execution via Dynamic Workers, all designed to scale beyond laptop‑level use.
The Think base class provides a complete chat lifecycle, persistent memory through context blocks, non‑destructive compaction, and built‑in memory and session management, allowing agents to remember key facts and continue work across interruptions. It also outlines an execution ladder from a simple workspace to browser, npm, and full sandbox environments, enabling capability growth as needed.
The post notes that agents are evolving toward infrastructure‑like software, where serverless, durable, and secure architectures support widespread, multi‑user deployment, and that Think is experimental with a stable API surface intended to evolve. Published 15 April 2026.