call_native · GTAV-CLAUDE- MCP: Risk & Policy

WHAT IT DOES

What call_native does on GTAV-CLAUDE-MCP

AI agents invoke call_native to trigger actions in GTAV-CLAUDE-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 call_native needs a policy

The server description explicitly mentions calling game natives and reading/writing memory. 'call_native' almost certainly invokes GTA V native functions, which can execute arbitrary game engine operations including spawning entities, modifying game state, and potentially reading/writing memory. This is an Execute-level action with critical severity due to the broad blast radius of arbitrary native calls.

From the tool's definition Tool name 'call_native' on a server described as enabling 'calling game natives, and reading/writing memory'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

call_native Rate-limited

call_native 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": {
    "call_native": {
      "limits": [
        {
          "counter": "call_native_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 GTAV-CLAUDE-MCP, so you can run agents against it safely.

FAQ

Questions about call_native

What does the call_native tool do? +

call_native. It is categorised as a Execute tool in the GTAV-CLAUDE-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 call_native? +

Register the GTAV-CLAUDE- MCP server in PolicyLayer and add a rule for call_native: 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 GTAV-CLAUDE-MCP. Nothing to install.

What risk level is call_native? +

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

Can I rate-limit call_native? +

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

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

call_native is provided by the GTAV-CLAUDE- MCP server (tabbedscamper/gtav-claude-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.