init_todo_schema · Pg Mnemosyne MCP: Risk & Policy

WHAT IT DOES

What init_todo_schema does on Pg Mnemosyne

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

WHY IT NEEDS A POLICY

Why init_todo_schema needs a policy

Creating a table schema is a Write operation: it modifies the database structure but is reversible (the table can be dropped). It does not execute arbitrary code, delete data, or cause financial impact. The action is predictable and scoped to schema initialization rather than data manipulation.

From the tool's definition Tool name 'init_todo_schema' and description 'Initializes a professional tasks table in the specified database' indicate table creation—a reversible data structure modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

init_todo_schema Rate-limited

init_todo_schema 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": {
    "init_todo_schema": {
      "limits": [
        {
          "counter": "init_todo_schema_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 Pg Mnemosyne, so you can run agents against it safely.

FAQ

Questions about init_todo_schema

What does the init_todo_schema tool do? +

Initializes a professional 'tasks' table in the specified database. It is categorised as a Write tool in the Pg Mnemosyne MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on init_todo_schema? +

Register the Pg Mnemosyne MCP server in PolicyLayer and add a rule for init_todo_schema: 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 Pg Mnemosyne. Nothing to install.

What risk level is init_todo_schema? +

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

Can I rate-limit init_todo_schema? +

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

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

init_todo_schema is provided by the Pg Mnemosyne MCP server (janadasroor/pg-mnemosyne-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.