Get the latest screenshot AND a detailed analysis of what
AI agents call capture_screenshot_with_analysis to retrieve information from Mcp Browser Lens without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool captures and analyzes the current state of a web page's UI and styling. It retrieves information about the DOM, visual appearance, and accessibility characteristics without modifying anything on the page or executing arbitrary operations. The risk is low because the capability is observation-only and suitable for design audits, accessibility checks, and debugging workflows.
From the tool's definition Tool name 'capture_screenshot_with_analysis' and description 'Get the latest screenshot AND a detailed analysis' indicate retrieval of visual and analytical data from a web page without modification.
Attacks that exploit this kind of access
Get the latest screenshot AND a detailed analysis of what. It is categorised as a Read tool in the Mcp Browser Lens MCP Server, which means it retrieves data without modifying state.
Register the Mcp Browser Lens MCP server in PolicyLayer and add a rule for capture_screenshot_with_analysis: 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 Mcp Browser Lens. Nothing to install.
capture_screenshot_with_analysis 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 capture_screenshot_with_analysis 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 capture_screenshot_with_analysis. 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.
capture_screenshot_with_analysis is provided by the Mcp Browser Lens MCP server (nano-step/mcp-browser-lens). 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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