param_set · COMSOL MCP Server MCP: Risk & Policy

WHAT IT DOES

What param_set does on COMSOL MCP Server

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

WHY IT NEEDS A POLICY

Why param_set needs a policy

The 'param_set' name suggests modifying simulation parameters, which is a reversible write operation. In the context of COMSOL simulation automation, parameter changes alter model configuration but are not irreversible deletions or destructive operations.

From the tool's definition Tool name is 'param_set' which indicates setting/modifying parameters in a COMSOL simulation. The description is empty, limiting direct evidence.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

param_set Rate-limited

param_set 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": {
    "param_set": {
      "limits": [
        {
          "counter": "param_set_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches COMSOL MCP Server, so you can run agents against it safely.

FAQ

Questions about param_set

What does the param_set tool do? +

param_set. It is categorised as a Write tool in the COMSOL 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 param_set? +

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

What risk level is param_set? +

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

Can I rate-limit param_set? +

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

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

param_set is provided by the COMSOL MCP Server MCP server (zhangyoupeng1996/codex_mcp_comsol). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

param_set is one line of COMSOL MCP Server's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

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