create_personage · Yanifend MCP: Risk & Policy

WHAT IT DOES

What create_personage does on Yanifend

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

WHY IT NEEDS A POLICY

Why create_personage needs a policy

This tool creates new resources (questionary, personage character, and API key) which are reversible via deletion operations (like delete_question visible on the same server). The creation of an embeddable API key represents a system-level change but remains within Write category since it doesn't irreversibly destroy data, execute arbitrary code, or move money.

From the tool's definition Tool description states 'Create a NEW personage — a fresh questionary plus its own character and an embeddable API key.' The verb 'Create' and the use of 'NEW' indicates this tool creates new data structures (questionary, character, API key) that persist in…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_personage Rate-limited

create_personage 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": {
    "create_personage": {
      "limits": [
        {
          "counter": "create_personage_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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

FAQ

Questions about create_personage

What does the create_personage tool do? +

Create a NEW personage — a fresh questionary plus its own character and an embeddable API key. This is how you. It is categorised as a Write tool in the Yanifend MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_personage? +

Register the Yanifend MCP server in PolicyLayer and add a rule for create_personage: 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 Yanifend. Nothing to install.

What risk level is create_personage? +

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

Can I rate-limit create_personage? +

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

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

create_personage is provided by the Yanifend MCP server (skippedaga/yanifend-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.