create_resource · Terragrunt GCP Tool MCP: Risk & Policy

WHAT IT DOES

What create_resource does on Terragrunt GCP Tool MCP

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

WHY IT NEEDS A POLICY

Why create_resource needs a policy

This tool creates new cloud infrastructure resources, which is a reversible Write operation (resources can be deleted/modified). Severity is high because misuse could create expensive cloud resources (compute instances, databases, networks) or security vulnerabilities (open firewall rules, overprivileged IAM roles).

From the tool's definition Tool name 'create_resource' paired with description 'Create a new infrastructure resource' indicates resource creation. Server context (Terragrunt GCP) shows this operates on cloud infrastructure.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_resource Rate-limited

create_resource 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": {
    "create_resource": {
      "limits": [
        {
          "counter": "create_resource_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 Terragrunt GCP Tool MCP, so you can run agents against it safely.

FAQ

Questions about create_resource

What does the create_resource tool do? +

Create a new infrastructure resource. It is categorised as a Write tool in the Terragrunt GCP Tool 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 create_resource? +

Register the Terragrunt GCP Tool MCP server in PolicyLayer and add a rule for create_resource: 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 Terragrunt GCP Tool MCP. Nothing to install.

What risk level is create_resource? +

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

Can I rate-limit create_resource? +

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

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

create_resource is provided by the Terragrunt GCP Tool MCP server (spolspol/terragrunt-gcp-tool-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.