screenshot
AI agents call screenshot to retrieve information from Windows Computer Use without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays visual information about the current state of the screen without modifying, executing code, or causing side effects. However, severity is elevated to medium because screenshots can reveal sensitive information (credentials, personal data, system configuration) that could be exploited if an untrusted agent misuses it, despite being a non-destructive read operation.
From the tool's definition Tool name is 'screenshot' and the server description indicates it provides 'native screen capture' capabilities. The tool enables visual inspection of the Windows desktop state.
Attacks that exploit this kind of access
screenshot. It is categorised as a Read tool in the Windows Computer Use MCP Server, which means it retrieves data without modifying state.
Register the Windows Computer Use MCP server in PolicyLayer and add a rule for screenshot: 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 Windows Computer Use. Nothing to install.
screenshot 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 screenshot 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 screenshot. 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.
screenshot is provided by the Windows Computer Use MCP server (sshh12/windows-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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