Anthropic Computer Use

Description. Computer Use is a beta API capability where Claude returns abstract tool calls (screenshot, click, type, key, scroll) for a virtual display and the developer's program executes them in a sandboxed environment (the reference implementation runs Xvfb + Mutter + Tint2 inside Docker). The model is paired with text_editor and bash tools for end-to-end automation. Anthropic ships a reference quickstart that bundles the container, the tool implementations, the agent loop, and a web UI. The feature is gated behind a beta header and Anthropic recommends running with classifiers, allowlisted domains, and human confirmation for consequential actions.

Agent loop shape. Stateful multi-turn agent loop driven by the developer. Each turn the model emits one or more tool_use blocks (computer / text_editor / bash); the application executes them in a sandboxed environment, captures results (a screenshot, command output, file diff), and returns them as tool_result blocks. The loop continues until Claude responds without further tool_use blocks or a max-iteration safeguard fires.