Clear the contents of an input or textarea element
AI agents call element_clear to permanently remove resources in MCP Playwright Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
An AI agent that decides to call element_clear doesn't hesitate, doesn't double-check, and doesn't stop at one. Whatever it removes from MCP Playwright Server is gone — there is no undo for destructive operations.
Attacks that exploit this kind of access
Clear the contents of an input or textarea element. It is categorised as a Destructive tool in the MCP Playwright Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the MCP Playwright Server MCP server in PolicyLayer and add a rule for element_clear: 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.
element_clear is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the element_clear 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 element_clear. 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.
element_clear 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.
element_clear is one line of MCP Playwright Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →