Capture a specific region of the screen at full (unscaled) resolution.
AI agents call computer_zoom to retrieve information from Computer Use MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only reads/captures a portion of the screen without performing any write, execute, or destructive actions. It is a passive screenshot/zoom capture tool with no side effects.
From the tool's definition Capture a specific region of the screen at full (unscaled) resolution
Attacks that exploit this kind of access
Capture a specific region of the screen at full (unscaled) resolution. It is categorised as a Read tool in the Computer Use MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Computer Use MCP Server MCP server in PolicyLayer and add a rule for computer_zoom: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Computer Use MCP Server. Nothing to install.
computer_zoom is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the computer_zoom rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for computer_zoom. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
computer_zoom is provided by the Computer Use MCP Server MCP server (sebastianbaltes/claude_code_computer_use_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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