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Glossary · Industry term

Computer use

Also known as: browser use, screen agent, computer-use agent

A capability of agentic AI systems in which the agent perceives the user's screen via screenshots and acts by emitting mouse clicks, keyboard input, and scroll events — operating any application the human can use, without API integration. Originally shipped by Anthropic (Claude with computer-use, October 2024); subsequently adopted by OpenAI (Operator, January 2025) and other vendors.

How this publication uses it

Computer use is the most powerful and the most dangerous agent capability in 2026 enterprise procurement. Powerful because the agent can operate every legacy application without integration work; dangerous because the action surface is unbounded — the agent can click, type, and submit on any UI, including UIs the deployer didn't authorise. The defensive primitive is action-class containment with screenshot-level audit retention: every click and keystroke is logged with the screenshot that preceded it, and certain action classes (financial, contractual, identity-modifying) require human approval per action. Computer-use deployments that skip the screenshot-level audit substrate cannot meet EU AI Act Article 12 reasoning-trace requirements.

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Primary sources

Vigil · 78 reviewed