ollama_create · Unified MCP Server MCP: Risk & Policy

WHAT IT DOES

What ollama_create does on Unified MCP Server

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

WHY IT NEEDS A POLICY

Why ollama_create needs a policy

This tool creates a new model in Ollama from a Modelfile. It is a Write operation as it creates a new resource (model) without being inherently destructive or irreversible in a critical way. Misuse could consume significant disk space or create malicious models, hence medium severity.

From the tool's definition Create a model from a Modelfile

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ollama_create Rate-limited

ollama_create 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "ollama_create": {
      "limits": [
        {
          "counter": "ollama_create_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Unified MCP Server, so you can run agents against it safely.

FAQ

Questions about ollama_create

What does the ollama_create tool do? +

Create a model from a Modelfile. It is categorised as a Write tool in the Unified 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 ollama_create? +

Register the Unified MCP Server MCP server in PolicyLayer and add a rule for ollama_create: 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 Unified MCP Server. Nothing to install.

What risk level is ollama_create? +

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

Can I rate-limit ollama_create? +

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

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

ollama_create is provided by the Unified MCP Server MCP server (qingyunyupan/ollama-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.