browser_screenshot_element
Screenshot a specific element by CSS selector.
This record as markdown: /tools/salviz-termux-browser-pilot/browser-screenshot-element.md
What browser_screenshot_element does on Termux Browser Pilot
AI agents call browser_screenshot_element to retrieve information from Termux Browser Pilot without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why browser_screenshot_element is rated Low
This tool only captures visual information from the browser without modifying any data, executing commands, or triggering side effects. The screenshot itself is read-only output. While browser automation tools can enable reconnaissance for attacks, this specific capability is limited to passive observation of rendered content, making it a Read operation with low severity.
From the tool's definition Tool takes a CSS selector and returns a screenshot of a DOM element. No modification of browser state, data, or external systems. Pure information retrieval.
Attacks that exploit this kind of access
The rule that runs browser_screenshot_element safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Termux Browser Pilot, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For browser_screenshot_element, this is the rule to start with:
browser_screenshot_element is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Termux Browser Pilot, apply this rule, and every browser_screenshot_element call is checked against it from then on.
Questions about browser_screenshot_element
Screenshot a specific element by CSS selector. It is categorised as a Read tool in the Termux Browser Pilot MCP Server, which means it retrieves data without modifying state.
Register the Termux Browser Pilot MCP server in PolicyLayer and add a rule for browser_screenshot_element: 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 Termux Browser Pilot. Nothing to install.
browser_screenshot_element 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 browser_screenshot_element 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 browser_screenshot_element. 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.
browser_screenshot_element is provided by the Termux Browser Pilot MCP server (salviz/termux-browser-pilot). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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