usg_whitelist_reload · AF_ MCP: Risk & Policy

WHAT IT DOES

What usg_whitelist_reload does on AF_MCP

AI agents invoke usg_whitelist_reload to trigger actions in AF_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 usg_whitelist_reload needs a policy

This tool triggers a reload/hot-reload operation of the USG whitelist configuration. It executes an operational action on the security device (reloading an active whitelist), which can affect which devices are blocked or allowed. This is an Execute-category action — it triggers an external security operation.

From the tool's definition 热加载或重新加载 USG YAML 白名单 (hot-load or reload the USG YAML whitelist)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

usg_whitelist_reload Rate-limited

usg_whitelist_reload 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": {
    "usg_whitelist_reload": {
      "limits": [
        {
          "counter": "usg_whitelist_reload_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 AF_MCP, so you can run agents against it safely.

FAQ

Questions about usg_whitelist_reload

What does the usg_whitelist_reload tool do? +

热加载或重新加载 USG YAML 白名单。. It is categorised as a Execute tool in the AF_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 usg_whitelist_reload? +

Register the AF_ MCP server in PolicyLayer and add a rule for usg_whitelist_reload: 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 AF_MCP. Nothing to install.

What risk level is usg_whitelist_reload? +

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

Can I rate-limit usg_whitelist_reload? +

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

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

usg_whitelist_reload is provided by the AF_ MCP server (xiaqijun/af_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.