apply_static_route · AF_ MCP: Risk & Policy

WHAT IT DOES

What apply_static_route does on AF_MCP

AI agents use apply_static_route to create or update resources in AF_MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your AF_MCP environment.

WHY IT NEEDS A POLICY

Why apply_static_route needs a policy

Static route application modifies network routing behavior, which is a Write operation—it creates or updates routing rules that can affect traffic flow. While high-severity due to network-wide impact potential and the AF_MCP server's security device context, it remains reversible (routes can be updated or removed later), distinguishing it from Destructive.

From the tool's definition Tool description states '提交静态路由变更' (submit static route changes). The workflow requires preview via preview_static_route followed by confirmation (confirmed=True), indicating creation or modification of network routing configuration.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

apply_static_route Rate-limited

apply_static_route stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "apply_static_route": {
      "limits": [
        {
          "counter": "apply_static_route_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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 apply_static_route

What does the apply_static_route tool do? +

提交静态路由变更。需先调用 preview_static_route，确认后以 confirmed=True 调用。. It is categorised as a Write tool in the AF_MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on apply_static_route? +

Register the AF_ MCP server in PolicyLayer and add a rule for apply_static_route: 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 apply_static_route? +

apply_static_route is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit apply_static_route? +

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

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

apply_static_route 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.