upscale_conservative · Bedrock Image MCP: Risk & Policy

WHAT IT DOES

What upscale_conservative does on Bedrock Image

AI agents invoke upscale_conservative to trigger actions in Bedrock Image. 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 upscale_conservative needs a policy

Based on the server context (image generation/editing via Amazon Bedrock) and the tool name, this likely performs image upscaling using an AI model, which constitutes executing an external operation (calling Amazon Bedrock). The 'conservative' qualifier suggests a less aggressive upscaling method.

From the tool's definition Tool name 'upscale_conservative' on a server for generating and editing images via Amazon Bedrock; description is empty.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

upscale_conservative Rate-limited

upscale_conservative 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": {
    "upscale_conservative": {
      "limits": [
        {
          "counter": "upscale_conservative_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 Bedrock Image, so you can run agents against it safely.

FAQ

Questions about upscale_conservative

What does the upscale_conservative tool do? +

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

How do I enforce a policy on upscale_conservative? +

Register the Bedrock Image MCP server in PolicyLayer and add a rule for upscale_conservative: 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 Bedrock Image. Nothing to install.

What risk level is upscale_conservative? +

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

Can I rate-limit upscale_conservative? +

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

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

upscale_conservative is provided by the Bedrock Image MCP server (kalleeh/bedrock-image-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.