net_cache · Ruyipage MCP: Risk & Policy

WHAT IT DOES

What net_cache does on Ruyipage

AI agents invoke net_cache to trigger actions in Ruyipage. 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 net_cache needs a policy

This tool changes the browser's network cache behavior, which is an external operation affecting browser state and network request handling. It's not purely reading data, nor is it writing persistent data or deleting anything irreversibly. It configures/controls browser behavior, making Execute the most appropriate category.

From the tool's definition 'Set network cache behavior' — modifies browser network cache settings, triggering an external browser operation that affects how network requests are handled

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

net_cache Rate-limited

net_cache 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": {
    "net_cache": {
      "limits": [
        {
          "counter": "net_cache_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 Ruyipage, so you can run agents against it safely.

FAQ

Questions about net_cache

What does the net_cache tool do? +

Set network cache behavior. It is categorised as a Execute tool in the Ruyipage MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on net_cache? +

Register the Ruyipage MCP server in PolicyLayer and add a rule for net_cache: 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 Ruyipage. Nothing to install.

What risk level is net_cache? +

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

Can I rate-limit net_cache? +

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

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

net_cache is provided by the Ruyipage MCP server (neverl805/ruyipage_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.