open_webpage · xigua- MCP: Risk & Policy

WHAT IT DOES

What open_webpage does on xigua-MCP

AI agents invoke open_webpage to trigger actions in xigua-MCP. 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 open_webpage needs a policy

Opening a webpage is an external operation that launches browser processes and loads arbitrary content; it's not a simple read (it has side effects like browser history, potential script execution, resource loading). Severity is medium because misuse could direct the agent to malicious sites or trigger unwanted browser activity, but it doesn't directly destroy data or move money.

From the tool's definition 打开指定的网页 (Open specified webpage) — triggers an external browser operation whose effects depend on the URL argument

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

open_webpage Rate-limited

open_webpage 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": {
    "open_webpage": {
      "limits": [
        {
          "counter": "open_webpage_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 xigua-MCP, so you can run agents against it safely.

FAQ

Questions about open_webpage

What does the open_webpage tool do? +

打开指定的网页. It is categorised as a Execute tool in the xigua-MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on open_webpage? +

Register the xigua- MCP server in PolicyLayer and add a rule for open_webpage: 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 xigua-MCP. Nothing to install.

What risk level is open_webpage? +

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

Can I rate-limit open_webpage? +

Yes. Add a rate_limit block to the open_webpage 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 open_webpage completely? +

Set action: deny in the PolicyLayer policy for open_webpage. 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 open_webpage? +

open_webpage is provided by the xigua- MCP server (xiguaxiaome/xigua-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.