describe_image_url

Analyze image from URL and provide AI-generated description using Grok.

SERVERImage Description MCP Server SOURCE7etsuo/image-description-mcp_server

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade A, identity unverified Pull the record →

This record as markdown: /tools/7etsuo-image-description-mcp-server/describe-image-url.md

WHAT IT DOES

What describe_image_url does on Image Description MCP Server

AI agents call describe_image_url to retrieve information from Image Description MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why describe_image_url is rated Low

This tool performs read-only analysis of remotely hosted images. It queries the Grok API to generate descriptions but does not create, modify, delete, or execute operations. The function is purely informational with no reversible or irreversible state changes. Severity is low because misuse would only expose or analyze image content without operational risk.

From the tool's definition The tool 'describe_image_url' takes an image URL as input and 'Analyze[s] image from URL and provide[s] AI-generated description' — it retrieves and analyzes data without modifying, executing code, or causing side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs describe_image_url safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Image Description MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For describe_image_url, this is the rule to start with:

describe_image_url Allowed

describe_image_url is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "describe_image_url": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Image Description MCP Server, apply this rule, and every describe_image_url call is checked against it from then on.

FAQ

Questions about describe_image_url

What does the describe_image_url tool do? +

Analyze image from URL and provide AI-generated description using Grok. It is categorised as a Read tool in the Image Description MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on describe_image_url? +

Register the Image Description MCP Server MCP server in PolicyLayer and add a rule for describe_image_url: 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 Image Description MCP Server. Nothing to install.

What risk level is describe_image_url? +

describe_image_url is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit describe_image_url? +

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

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

describe_image_url is provided by the Image Description MCP Server MCP server (7etsuo/image-description-mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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