oakvar_store_register · OakVar MCP Server MCP: Risk & Policy

WHAT IT DOES

What oakvar_store_register does on OakVar MCP Server

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

WHY IT NEEDS A POLICY

Why oakvar_store_register needs a policy

This tool creates or registers a new entry in the OakVar module store, which is a reversible write operation. It does not execute code directly, delete data, or involve financial transactions.

From the tool's definition Tool name 'oakvar_store_register' and description 'Register a module in the OakVar store' indicate creation/addition of a module registration record in a store system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

oakvar_store_register Rate-limited

oakvar_store_register 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": {
    "oakvar_store_register": {
      "limits": [
        {
          "counter": "oakvar_store_register_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 OakVar MCP Server, so you can run agents against it safely.

FAQ

Questions about oakvar_store_register

What does the oakvar_store_register tool do? +

Register a module in the OakVar store. It is categorised as a Write tool in the OakVar MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on oakvar_store_register? +

Register the OakVar MCP Server MCP server in PolicyLayer and add a rule for oakvar_store_register: 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 OakVar MCP Server. Nothing to install.

What risk level is oakvar_store_register? +

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

Can I rate-limit oakvar_store_register? +

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

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

oakvar_store_register is provided by the OakVar MCP Server MCP server (miliyarsh/oakvar-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.