create_tool · AutoMCP-SQL MCP: Risk & Policy

WHAT IT DOES

What create_tool does on AutoMCP-SQL

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

WHY IT NEEDS A POLICY

Why create_tool needs a policy

This tool creates or inserts data into database tables, which is a reversible Write operation. It is not Destructive (no irreversible deletion), not Execute (not running arbitrary code—it's a generated typed tool), and not Financial. Severity is medium because misuse could corrupt data or violate data integrity constraints, but changes are theoretically reversible via update_tool or delete_tool.

From the tool's definition Tool name 'create_tool' combined with sibling tools 'delete_tool', 'get_tool', and 'update_tool' indicates CRUD operations. Server description states tools allow 'database interaction' on SQLite without exposing raw SQL.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_tool Rate-limited

create_tool 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_tool": {
      "limits": [
        {
          "counter": "create_tool_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 AutoMCP-SQL, so you can run agents against it safely.

FAQ

Questions about create_tool

What does the create_tool tool do? +

create_tool. It is categorised as a Write tool in the AutoMCP-SQL 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_tool? +

Register the AutoMCP-SQL MCP server in PolicyLayer and add a rule for create_tool: 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 AutoMCP-SQL. Nothing to install.

What risk level is create_tool? +

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

Can I rate-limit create_tool? +

Yes. Add a rate_limit block to the create_tool 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_tool completely? +

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

create_tool is provided by the AutoMCP-SQL MCP server (mav977/automcp-sql). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.