Cloudflare OS open-sources a self-hostable agent platform with a real security model

Cloudflare published Cloudflare OS, its internal AI agent platform, on 5 August 2026 under Apache-2.0, self-hostable on workerd with local LLMs via Ollama. The security model — zero-initial-access agents and per-resource Gatekeepers — is the real novelty, but the runtime requires a paid Workers plan.