secure_esm_dynamodb_policy · AWS IoT SiteWise MCP Server MCP

WHAT IT DOES

What secure_esm_dynamodb_policy does on AWS IoT SiteWise MCP Server

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

WHY IT NEEDS A POLICY

Why secure_esm_dynamodb_policy needs a policy

This tool generates (creates) an IAM policy, which is a Write operation — it produces a new policy artifact. It does not execute code, delete resources, or involve financial transactions. The severity is medium because creating IAM policies can affect permissions and access control, but the description emphasizes pre-approved templates with scoped permissions, reducing blast radius.

From the tool's definition Generate security-approved IAM policy for DynamoDB Streams ESM with scoped permissions. Uses pre-approved templates, not LLM generation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

secure_esm_dynamodb_policy Rate-limited

secure_esm_dynamodb_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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "secure_esm_dynamodb_policy": {
      "limits": [
        {
          "counter": "secure_esm_dynamodb_policy_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 AWS IoT SiteWise MCP Server, so you can run agents against it safely.

FAQ

Questions about secure_esm_dynamodb_policy

What does the secure_esm_dynamodb_policy tool do? +

Generate security-approved IAM policy for DynamoDB Streams ESM with scoped permissions. Uses pre-approved templates, not LLM generation. It is categorised as a Write tool in the AWS IoT SiteWise 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 secure_esm_dynamodb_policy? +

Register the AWS IoT SiteWise MCP Server MCP server in PolicyLayer and add a rule for secure_esm_dynamodb_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 AWS IoT SiteWise MCP Server. Nothing to install.

What risk level is secure_esm_dynamodb_policy? +

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

Can I rate-limit secure_esm_dynamodb_policy? +

Yes. Add a rate_limit block to the secure_esm_dynamodb_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 secure_esm_dynamodb_policy completely? +

Set action: deny in the PolicyLayer policy for secure_esm_dynamodb_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 secure_esm_dynamodb_policy? +

secure_esm_dynamodb_policy is provided by the AWS IoT SiteWise MCP Server MCP server (awslabs.aws-iot-sitewise-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.