invoke_agent_runtime · AWS IoT SiteWise MCP Server MCP

WHAT IT DOES

What invoke_agent_runtime does on AWS IoT SiteWise MCP Server

AI agents invoke invoke_agent_runtime to trigger actions in AWS IoT SiteWise MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why invoke_agent_runtime needs a policy

An 'invoke_agent_runtime' tool that executes arbitrary agent logic or AWS service calls represents an Execute-category risk. Without a description, confidence is moderate but the verb 'invoke' combined with 'runtime' in an AWS service context strongly implies triggering code execution.

From the tool's definition Tool name 'invoke_agent_runtime' indicates execution of agent runtime code or operations. The 'invoke' verb is a strong signal of code execution or triggering external operations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

invoke_agent_runtime Rate-limited

invoke_agent_runtime stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "invoke_agent_runtime": {
      "limits": [
        {
          "counter": "invoke_agent_runtime_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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 invoke_agent_runtime

What does the invoke_agent_runtime tool do? +

invoke_agent_runtime. It is categorised as a Execute tool in the AWS IoT SiteWise MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on invoke_agent_runtime? +

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

invoke_agent_runtime is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit invoke_agent_runtime? +

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

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

invoke_agent_runtime 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.