Hot agent harnesses share one thing: they run on Durable Objects
irvinebroque · x · 2026-11-10
An observation that the hottest new agent harnesses all run on Cloudflare Durable Objects. Quoted post introduces Nanocode, a frontier harness & SDK for embedded agents built on durability, code mode, and harness/model co-design. Cloudflare's Agents docs now include a Harnesses section explaining how harnesses handle prompt construction, memory, tool selection, and streaming atop the Agents SDK runtime, comparing Pi, OpenCode, and Container harnesses.
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