create_resource

A write tool on the AWS MCP server.

SERVERAWS SOURCE@awslabs/mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity verified Pull the record →

This record as markdown: /tools/aws/create-resource.md

WHAT IT DOES

What create_resource does on AWS

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

RISK

Why create_resource is rated Medium

The name 'create_resource' indicates a Write operation (creates or modifies data reversibly). However, confidence is moderate (0.55) because the description is empty and 'resource' is generic in AWS context—it could mean compute instances, storage, networks, or configuration objects.

From the tool's definition Tool name 'create_resource' indicates creation of resources. AWS context with sibling tools that modify identity/access policies (attach_user_policy, attach_group_policy, add_user_to_group) suggests this operates in a system where resource creation can affect…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_resource safely

PolicyLayer is an MCP gateway: it sits between your AI agents and AWS, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_resource, this is the rule to start with:

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.

The button opens the PolicyLayer dashboard: create your workspace, connect AWS, apply this rule, and every create_resource call is checked against it from then on.

FAQ

Questions about create_resource

What does the create_resource tool do? +

create_resource is a write tool on the AWS MCP server. It is categorised as a Write tool in the AWS 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 AWS 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 AWS. 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 AWS MCP server (@awslabs/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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