# describe_image_url

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

Agent View of the PolicyLayer registry record for `describe_image_url`. HTML page: https://policylayer.com/tools/7etsuo-image-description-mcp-server/describe-image-url

## Facts

- Tool: `describe_image_url`
- Server: Image Description MCP Server (`7etsuo/image-description-mcp_server`) — https://policylayer.com/tools/7etsuo-image-description-mcp-server.md
- Homepage: https://github.com/7etsuo/image-description-mcp_server
- Risk category: Read (Low risk)
- Registry record: grade A, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "describe_image_url",
    "arguments": {}
  }
}
```

## 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 own 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."

## Use case

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.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Image Description MCP Server:

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

## Other tools on Image Description MCP Server (2)

- `describe_image_file` — Read — https://policylayer.com/tools/7etsuo-image-description-mcp-server/describe-image-file.md
- `extract_text_from_image` — Read — https://policylayer.com/tools/7etsuo-image-description-mcp-server/extract-text-from-image.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=7etsuo-image-description-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/7etsuo-image-description-mcp-server