AI agents use stata_append_dofile to create or update resources in Stata — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Stata environment.
This tool modifies an existing do-file by appending content to it. This is a reversible write operation (the file can be restored), but misuse could corrupt or alter Stata scripts used for data analysis, potentially affecting downstream results.
From the tool's definition '向已有 do 文件追加内容' translates to 'Append content to an existing do-file'
Documented attack patterns abuse exactly the kind of access stata_append_dofile gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Stata, and nothing reaches the server without passing your rules. This is the rule we recommend for stata_append_dofile:
{
"version": "1",
"default": "deny",
"tools": {
"stata_append_dofile": {
"limits": [
{
"counter": "stata_append_dofile_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}stata_append_dofile 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.
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向已有 do 文件追加内容. It is categorised as a Write tool in the Stata MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Stata MCP server in PolicyLayer and add a rule for stata_append_dofile: 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. Nothing to install.
stata_append_dofile is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the stata_append_dofile 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.
Set action: deny in the PolicyLayer policy for stata_append_dofile. 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.
stata_append_dofile is provided by the Stata MCP server (shichengg/stata-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Stata, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
12 Stata tools catalogued and risk-classified — across an index of 43,000+ MCP servers.