Modern Web Guidance is a set of agent skills and a local CLI. The agent searches about 200 hand-written guides on current HTML, CSS and browser APIs and loads the matching guide into its context.
In the News: November 10, 2026 (Extra 2)
Browser vendors ship Modern Web Guidance 1.0, an agent skill pack whose own evals show large pass-rate gains on modern web checks.
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Browser vendors ship a skill pack for coding agents, with evals attached
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AWS puts each agent workload in its own Nitro VM, at no extra charge
AWS made Nitro Sandboxes available. They are lightweight VMs managed by the Nitro Hypervisor, and each EKS pod, ECS task or VM that uses one gets its own hardware isolation boundary on a shared EC2 instance.