close_camera_preview_tool · xigua- MCP: Risk & Policy

WHAT IT DOES

What close_camera_preview_tool does on xigua-MCP

AI agents invoke close_camera_preview_tool 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 close_camera_preview_tool needs a policy

This tool closes a camera preview window, which is an external operation affecting a running process/UI component. It is analogous to other tools on this server like 'close_browser' and 'close_program', which are Execute-category actions that terminate running processes. The effect depends on the current state of the system and triggers an external operation.

From the tool's definition 关闭摄像头实时预览窗口 (Close camera live preview window)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

close_camera_preview_tool Rate-limited

close_camera_preview_tool 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": {
    "close_camera_preview_tool": {
      "limits": [
        {
          "counter": "close_camera_preview_tool_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 close_camera_preview_tool

What does the close_camera_preview_tool tool do? +

关闭摄像头实时预览窗口。. 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 close_camera_preview_tool? +

Register the xigua- MCP server in PolicyLayer and add a rule for close_camera_preview_tool: 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 close_camera_preview_tool? +

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

Can I rate-limit close_camera_preview_tool? +

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

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

close_camera_preview_tool 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.