hover-element · TgeBrowser MCP Server MCP: Risk & Policy

WHAT IT DOES

What hover-element does on TgeBrowser MCP Server

AI agents invoke hover-element to trigger actions in TgeBrowser MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why hover-element needs a policy

Hovering over an element is a browser automation action that executes an interaction within the browser environment. It has no direct data modification or deletion effects, but it does trigger external browser operations (e.g., revealing tooltips, dropdown menus, dynamic content) whose effects depend on the target element and context. This places it in Execute rather than Read.

From the tool's definition 'Hover the element' - triggers a browser interaction action (mouse hover) on a UI element

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

hover-element Rate-limited

hover-element stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "hover-element": {
      "limits": [
        {
          "counter": "hover-element_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches TgeBrowser MCP Server, so you can run agents against it safely.

FAQ

Questions about hover-element

What does the hover-element tool do? +

Hover the element. It is categorised as a Execute tool in the TgeBrowser MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on hover-element? +

Register the TgeBrowser MCP Server MCP server in PolicyLayer and add a rule for hover-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 TgeBrowser MCP Server. Nothing to install.

What risk level is hover-element? +

hover-element is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit hover-element? +

Yes. Add a rate_limit block to the hover-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.

How do I block hover-element completely? +

Set action: deny in the PolicyLayer policy for hover-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.

What MCP server provides hover-element? +

hover-element is provided by the TgeBrowser MCP Server MCP server (tuguang2025/tgebrowser-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.