Capture a screenshot of the page, a specific element, or a region. Returns base64-encoded image.
AI agents call page_screenshot to retrieve information from MCP Playwright Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Screenshot capture is a read-only operation with no side effects. It retrieves and encodes visual information from the browser state but does not alter any data, trigger external operations, or commit irreversible changes.
From the tool's definition Tool is named 'page_screenshot' and description states it 'Capture[s] a screenshot of the page, a specific element, or a region.
Attacks that exploit this kind of access
Capture a screenshot of the page, a specific element, or a region. Returns base64-encoded image. It is categorised as a Read tool in the MCP Playwright Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Playwright Server MCP server in PolicyLayer and add a rule for page_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 MCP Playwright Server. Nothing to install.
page_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 page_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 page_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.
page_screenshot is provided by the MCP Playwright Server MCP server (j0hanz/playwright-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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