Cloudflare previews @cloudflare/computer agent runtime with shared filesystem

Cloudflare introduced an early preview of @cloudflare/computer, an open-source agent runtime package that gives each agent a computer-like environment while the platform handles whether code runs in an isolate, a container sandbox, or a browser. The company said coding agents need a filesystem, shell, tools, and the ability to run code, and that traditional per-agent containers will not scale to hundreds of millions or billions of concurrent agents. The package centers on a durable workspace filesystem that can be defined declaratively and kept in sync across execution backends. Cloudflare said file-only jobs can run inside isolates while tasks that need Linux, npm, or native binaries can run in containers against the same files, with operations gated, audited, and observed. Instances can be attached to Durable Objects and installed via npm as @cloudflare/computer. Cloudflare said its architecture is designed to run the agent harness in an isolate and call an attached container on demand, using heavier compute only when required. The company said its goal is an agent runtime where a container is required for less than 10% of work, with coding, media, and document tasks handled by isolates, and invited developers to try the early preview.