create_agent · Memanto MCP: Risk & Policy

WHAT IT DOES

What create_agent does on Memanto MCP

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

WHY IT NEEDS A POLICY

Why create_agent needs a policy

This tool creates a new agent, which is a reversible write operation—an agent can be deleted via 'delete_agent'. It modifies the system state by introducing a new managed entity but does not execute arbitrary code, delete data irreversibly, or handle financial transactions.

From the tool's definition Tool name 'create_agent' indicates creation of a new agent entity. The server's purpose is to manage memory and agents for long-term goal achievement. Sibling tools include 'delete_agent' and 'get_agent', confirming agents are managed entities.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_agent Rate-limited

create_agent 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_agent": {
      "limits": [
        {
          "counter": "create_agent_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 Memanto MCP, so you can run agents against it safely.

FAQ

Questions about create_agent

What does the create_agent tool do? +

create_agent. It is categorised as a Write tool in the Memanto MCP 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_agent? +

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

What risk level is create_agent? +

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

Can I rate-limit create_agent? +

Yes. Add a rate_limit block to the create_agent 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_agent completely? +

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

create_agent is provided by the Memanto MCP server (moorcheh-ai/memanto). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.