create_api_cache · AWS IoT SiteWise MCP Server MCP

WHAT IT DOES

What create_api_cache does on AWS IoT SiteWise MCP Server

AI agents use create_api_cache 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 create_api_cache needs a policy

This tool creates an API cache, which is a reversible operation that modifies system state by adding a new resource. While it can be modified or deleted later, creating infrastructure has moderate blast radius—it consumes resources, affects API performance configuration, and could incur costs. The empty description lowers confidence, but the 'create_' verb clearly indicates Write category.

From the tool's definition Tool name 'create_api_cache' indicates creation of a cache resource. The 'create_' prefix signals a Write operation that establishes new infrastructure or configuration state.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_api_cache Rate-limited

create_api_cache 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_api_cache": {
      "limits": [
        {
          "counter": "create_api_cache_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 create_api_cache

What does the create_api_cache tool do? +

create_api_cache. 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 create_api_cache? +

Register the AWS IoT SiteWise MCP Server MCP server in PolicyLayer and add a rule for create_api_cache: 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 create_api_cache? +

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

Can I rate-limit create_api_cache? +

Yes. Add a rate_limit block to the create_api_cache 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_api_cache completely? +

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

create_api_cache 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.