
4/15/2026 · Sunil Pai, Kate Reznykova
What this post added
This post introduces Project Think, a new set of primitives for the Agents SDK designed to build next-generation AI agents. It addresses limitations of current AI agents by enabling durable execution with fibers, sub-agents via Facets for delegation, persistent sessions with tree-structured messages and FTS5 search, and sandboxed code execution using Dynamic Workers and codemode. This significantly enhances the scalability, cost-effectiveness, and robustness of AI agent deployments by leveraging Cloudflare's infrastructure.