Medium Risk

update_agent_runtime

update_agent_runtime

How to control update_agent_runtime ↓

What update_agent_runtime does on Amazon Data Processing MCP Server

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

Medium Risk

Why update_agent_runtime needs a policy

The name 'update_agent_runtime' strongly implies modifying the runtime configuration of an agent (likely an AWS Bedrock or similar AI agent), which is a Write operation. However, the empty description lowers confidence. Given the context of an AWS data processing MCP server, updating an agent runtime could have significant blast radius if misconfigured, hence high severity.

From the tool's definition Tool name: update_agent_runtime; description is empty and uninformative.

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

How to control update_agent_runtime

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_agent_runtime": {
      "limits": [
        {
          "counter": "update_agent_runtime_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

update_agent_runtime 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.

  1. Create a free account and register Amazon Data Processing MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

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Related tools and policies

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Questions about update_agent_runtime

What does the update_agent_runtime tool do? +

update_agent_runtime. It is categorised as a Write tool in the Amazon Data Processing 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 update_agent_runtime? +

Register the Amazon Data Processing MCP Server MCP server in PolicyLayer and add a rule for update_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 Amazon Data Processing MCP Server. Nothing to install.

What risk level is update_agent_runtime? +

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

Can I rate-limit update_agent_runtime? +

Yes. Add a rate_limit block to the update_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 update_agent_runtime completely? +

Set action: deny in the PolicyLayer policy for update_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 update_agent_runtime? +

update_agent_runtime is provided by the Amazon Data Processing MCP Server MCP server (awslabs.aws-dataprocessing-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 Data Processing MCP Server tool call.

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

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805 Amazon Data Processing MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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