write_do_file · Stata MCP Server MCP: Risk & Policy

WHAT IT DOES

What write_do_file does on Stata MCP Server

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

WHY IT NEEDS A POLICY

Why write_do_file needs a policy

This is a Write operation because it creates or modifies .do files (Stata scripts) without permanent destruction. The 'overwrite' aspect means it can replace file contents, but the action is reversible (the previous file could theoretically be recovered or the operation undone). It is not Destructive because overwriting a file in this context is a standard modification, not an irreversible deletion.

From the tool's definition Tool description (translated): 'do 파일 생성 또는 덮어쓰기' = 'create or overwrite do file'. The verb 'overwrite' (덮어쓰기) indicates modification of existing files. Combined with 'create' (생성), this tool creates new files or modifies existing ones reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

write_do_file Rate-limited

write_do_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": {
    "write_do_file": {
      "limits": [
        {
          "counter": "write_do_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 Stata MCP Server, so you can run agents against it safely.

FAQ

Questions about write_do_file

What does the write_do_file tool do? +

do 파일 생성 또는 덮어쓰기. It is categorised as a Write tool in the Stata 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 write_do_file? +

Register the Stata MCP Server MCP server in PolicyLayer and add a rule for write_do_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 Stata MCP Server. Nothing to install.

What risk level is write_do_file? +

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

Can I rate-limit write_do_file? +

Yes. Add a rate_limit block to the write_do_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 write_do_file completely? +

Set action: deny in the PolicyLayer policy for write_do_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 write_do_file? +

write_do_file is provided by the Stata MCP Server MCP server (mkprevo/stata-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.