browser_verify_element_visible
A read tool on the Playwright MCP server.
This record as markdown: /tools/hanato238-playwright-mcp/browser-verify-element-visible.md
What browser_verify_element_visible does on Playwright
AI agents call browser_verify_element_visible to retrieve information from Playwright without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why browser_verify_element_visible is rated Low
The verb 'verify' combined with 'element_visible' indicates this tool queries or asserts the visibility state of a DOM element. This is a read operation with no side effects—it retrieves information about page state. While the description is empty (lowering confidence slightly), the naming convention and peer tools strongly suggest it does not create, modify, delete, or execute arbitrary code.
From the tool's definition Tool name 'browser_verify_element_visible' indicates a verification/assertion operation on browser state. No description provided, but the naming pattern and context among sibling tools (which include read operations like browser_console_messages,…
Attacks that exploit this kind of access
The rule that runs browser_verify_element_visible safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Playwright, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For browser_verify_element_visible, this is the rule to start with:
browser_verify_element_visible 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 Playwright, apply this rule, and every browser_verify_element_visible call is checked against it from then on.
Questions about browser_verify_element_visible
browser_verify_element_visible is a read tool on the Playwright MCP server. It is categorised as a Read tool in the Playwright MCP Server, which means it retrieves data without modifying state.
Register the Playwright MCP server in PolicyLayer and add a rule for browser_verify_element_visible: 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 Playwright. Nothing to install.
browser_verify_element_visible 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_verify_element_visible 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_verify_element_visible. 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_verify_element_visible is provided by the Playwright MCP server (hanato238/playwright-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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