mcp_create_py_file · Databricks MCP Server MCP

WHAT IT DOES

What mcp_create_py_file does on Databricks MCP Server

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

WHY IT NEEDS A POLICY

Why mcp_create_py_file needs a policy

This tool creates Python files, which is a reversible write operation (files can be edited or deleted later). The empty description lowers confidence slightly, but the name and server context clearly indicate file creation capability.

From the tool's definition Tool name 'mcp_create_py_file' explicitly indicates file creation. The server description states it provides 'tools for local file management' including the ability to 'create/edit files locally'.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

mcp_create_py_file Rate-limited

mcp_create_py_file 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": {
    "mcp_create_py_file": {
      "limits": [
        {
          "counter": "mcp_create_py_file_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 Databricks MCP Server, so you can run agents against it safely.

FAQ

Questions about mcp_create_py_file

What does the mcp_create_py_file tool do? +

mcp_create_py_file. It is categorised as a Write tool in the Databricks MCP 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 mcp_create_py_file? +

Register the Databricks MCP Server MCP server in PolicyLayer and add a rule for mcp_create_py_file: 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 Databricks MCP Server. Nothing to install.

What risk level is mcp_create_py_file? +

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

Can I rate-limit mcp_create_py_file? +

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

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

mcp_create_py_file is provided by the Databricks MCP Server MCP server (stephenjhsu/databricks-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.