identity_put_resource_policy

THE RISK

Medium Risk

Why identity_put_resource_policy needs a policy

This tool writes/modifies IAM resource policies, which control who can access what resources. While not destructive (policies can be updated), it is a high-severity write operation because misconfiguration could grant unintended access or lock out legitimate users. The empty description reduces confidence slightly, but the name clearly indicates policy modification rather than deletion or financial impact.

From the tool's definition Tool name 'identity_put_resource_policy' indicates creation or modification of an IAM resource policy. The 'put' operation is a write action that creates or updates policies, affecting access control.

Documented attack patterns abuse exactly the kind of access identity_put_resource_policy gives an agent:

POLICY

How to control identity_put_resource_policy

PolicyLayer is an MCP gateway — it sits between your AI agents and Amazon Redshift MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for identity_put_resource_policy:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "identity_put_resource_policy": {
      "limits": [
        {
          "counter": "identity_put_resource_policy_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

identity_put_resource_policy 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.

Create a free account and register Amazon Redshift MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

Govern customer-ops agents → PII redaction, approval on external messages, and no-bulk-delete rules on the records agents change.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about identity_put_resource_policy

What does the identity_put_resource_policy tool do? +

identity_put_resource_policy. It is categorised as a Write tool in the Amazon Redshift 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 identity_put_resource_policy? +

Register the Amazon Redshift MCP Server MCP server in PolicyLayer and add a rule for identity_put_resource_policy: 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 Amazon Redshift MCP Server. Nothing to install.

What risk level is identity_put_resource_policy? +

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

Can I rate-limit identity_put_resource_policy? +

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

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

identity_put_resource_policy is provided by the Amazon Redshift MCP Server MCP server (awslabs.redshift-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Amazon Redshift MCP Server tool call.

Start from Amazon Redshift MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →