Get the current screen resolution.
AI agents call get_screen_size to retrieve information from Computer Control Mcp Lands without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves the current screen resolution dimensions—a passive information query with no side effects, no code execution, no data modification, and no irreversible operations. It falls squarely within the Read category as a safe getter function.
From the tool's definition Tool name 'get_screen_size' and description 'Get the current screen resolution' indicate a query operation that retrieves display information without modifying or executing actions.
Attacks that exploit this kind of access
Get the current screen resolution. It is categorised as a Read tool in the Computer Control Mcp Lands MCP Server, which means it retrieves data without modifying state.
Register the Computer Control Mcp Lands MCP server in PolicyLayer and add a rule for get_screen_size: 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 Control Mcp Lands. Nothing to install.
get_screen_size 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 get_screen_size 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 get_screen_size. 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.
get_screen_size is provided by the Computer Control Mcp Lands MCP server (songcaiya/windows-mcp-lands). 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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