jamovi_export_results · jamovi MCP: Risk & Policy

WHAT IT DOES

What jamovi_export_results does on jamovi MCP

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

WHY IT NEEDS A POLICY

Why jamovi_export_results needs a policy

Exporting results is a write-class operation: it generates new output (exported files/data) but does not irreversibly destroy data (not Destructive), does not execute arbitrary code or trigger external operations based on user input in an uncontrolled way (not Execute), and does not move money or commit financial obligations (not Financial).

From the tool's definition Tool description states it "Export analysis results in a specific format" — this creates/outputs data in a new format without modifying the underlying analyses or datasets. Export operations typically write files or serialize data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

jamovi_export_results Rate-limited

jamovi_export_results 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": {
    "jamovi_export_results": {
      "limits": [
        {
          "counter": "jamovi_export_results_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 jamovi MCP, so you can run agents against it safely.

FAQ

Questions about jamovi_export_results

What does the jamovi_export_results tool do? +

Export analysis results in a specific format. It is categorised as a Write tool in the jamovi MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on jamovi_export_results? +

Register the jamovi MCP server in PolicyLayer and add a rule for jamovi_export_results: 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 jamovi MCP. Nothing to install.

What risk level is jamovi_export_results? +

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

Can I rate-limit jamovi_export_results? +

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

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

jamovi_export_results is provided by the jamovi MCP server (yjm110517/jamovi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.