window-show · TgeBrowser MCP Server MCP: Risk & Policy

WHAT IT DOES

What window-show does on TgeBrowser MCP Server

AI agents invoke window-show 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 window-show needs a policy

This tool triggers an action on an external application (showing/bringing up the TgeBrowser client window), which is an external operation rather than a pure read. It has minimal blast radius as it only affects UI visibility, but it does execute an operation on an external system.

From the tool's definition 'Show the TgeBrowser client window' — triggers an external UI operation affecting the browser client application

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

window-show Rate-limited

window-show 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": {
    "window-show": {
      "limits": [
        {
          "counter": "window-show_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 window-show

What does the window-show tool do? +

Show the TgeBrowser client window. 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 window-show? +

Register the TgeBrowser MCP Server MCP server in PolicyLayer and add a rule for window-show: 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 window-show? +

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

Can I rate-limit window-show? +

Yes. Add a rate_limit block to the window-show 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 window-show completely? +

Set action: deny in the PolicyLayer policy for window-show. 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 window-show? +

window-show 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.