translate_to_mrgsolve

THE RISK

Low Risk

Why translate_to_mrgsolve needs a policy

This tool reads a NONMEM control stream file and converts/translates it to mrgsolve format. It is primarily a read/parse/transform operation with no indication of writing files, executing code, or destructive actions. The output is model code translation.

From the tool's definition Translate a NONMEM control stream (.ctl/.mod) to mrgsolve model code

Documented attack patterns abuse exactly the kind of access translate_to_mrgsolve gives an agent:

POLICY

How to control translate_to_mrgsolve

PolicyLayer is an MCP gateway — it sits between your AI agents and Nonmem, and nothing reaches the server without passing your rules. This is the rule we recommend for translate_to_mrgsolve:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "translate_to_mrgsolve": {}
  }
}

translate_to_mrgsolve is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Nonmem — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More Nonmem tools

Destructive cancel_run Cancel a running NONMEM job. Execute execute_psn_bootstrap Run bootstrap using PsN (async). Returns job ID for polling. Requires PsN + NONMEM. Execute execute_psn_vpc Run VPC using PsN (async). Returns job ID for polling. Requires PsN + NONMEM. Execute run_diagnostics Run comprehensive post-run diagnostics: boundary checks, condition number, shrinkage, prec Execute simulate_mrgsolve Run a simulation using mrgsolve (R). No NONMEM needed. Provide model code or model file pa Execute generate_vpc_data Generate VPC data using mrgsolve + vpc R package. No NONMEM needed. Requires observed data Execute submit_run Submit a NONMEM run (async). Returns a job ID for polling. Requires NONMEM installation. Read compare_models Compare multiple NONMEM runs by OFV, delta-OFV, parameter counts, and AIC. Accepts a list

All 22 Nonmem tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about translate_to_mrgsolve

What does the translate_to_mrgsolve tool do? +

Translate a NONMEM control stream (.ctl/.mod) to mrgsolve model code. Handles ADVAN1-13, THETAs, OMEGAs, $PK, $DES, $ERROR. It is categorised as a Read tool in the Nonmem MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on translate_to_mrgsolve? +

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

What risk level is translate_to_mrgsolve? +

translate_to_mrgsolve is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit translate_to_mrgsolve? +

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

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

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

Enforce policy on every Nonmem tool call.

Start from Nonmem, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →