fill_mask · MCP DeepInfra AI Tools Server MCP: Risk & Policy

WHAT IT DOES

What fill_mask does on MCP DeepInfra AI Tools Server

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

WHY IT NEEDS A POLICY

Why fill_mask needs a policy

An AI agent can call fill_mask faster than any human can review — one bad instruction and it creates or modifies resources in MCP DeepInfra AI Tools Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

fill_mask Rate-limited

fill_mask 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": {
    "fill_mask": {
      "limits": [
        {
          "counter": "fill_mask_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 MCP DeepInfra AI Tools Server, so you can run agents against it safely.

FAQ

Questions about fill_mask

What does the fill_mask tool do? +

Fill masked tokens in text using DeepInfra OpenAI-compatible API. It is categorised as a Write tool in the MCP DeepInfra AI Tools 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 fill_mask? +

Register the MCP DeepInfra AI Tools Server MCP server in PolicyLayer and add a rule for fill_mask: 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 MCP DeepInfra AI Tools Server. Nothing to install.

What risk level is fill_mask? +

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

Can I rate-limit fill_mask? +

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

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

fill_mask is provided by the MCP DeepInfra AI Tools Server MCP server (phuihock/mcp-deeinfra). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.