get_download_url

THE RISK

Low Risk

Why get_download_url needs a policy

The tool retrieves an authenticated download URL, which is fundamentally a read operation. It does not create, modify, delete, execute code, or commit financial transactions. While the URL may subsequently be used to download content, the tool itself only queries and returns data.

From the tool's definition Tool name is 'get_download_url' and description states it 'Get[s] authenticated download URL for a model version' - this retrieves/queries data (a URL) with no side effects or modifications.

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

POLICY

How to control get_download_url

PolicyLayer is an MCP gateway — it sits between your AI agents and Civitai Mcp Ultimate, and nothing reaches the server without passing your rules. This is the rule we recommend for get_download_url:

policy.json

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

get_download_url is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Civitai Mcp Ultimate — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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All 21 Civitai Mcp Ultimate tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_download_url

What does the get_download_url tool do? +

Get authenticated download URL for a model version. It is categorised as a Read tool in the Civitai Mcp Ultimate MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_download_url? +

Register the Civitai Mcp Ultimate MCP server in PolicyLayer and add a rule for get_download_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 Civitai Mcp Ultimate. Nothing to install.

What risk level is get_download_url? +

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

Can I rate-limit get_download_url? +

Yes. Add a rate_limit block to the get_download_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 get_download_url completely? +

Set action: deny in the PolicyLayer policy for get_download_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 get_download_url? +

get_download_url is provided by the Civitai Mcp Ultimate MCP server (timoncool/civitai-mcp-ultimate). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Civitai Mcp Ultimate tool call.

Start from Civitai Mcp Ultimate, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →