physics_add_laminar_flow · Flex Sensor Agent MCP

WHAT IT DOES

What physics_add_laminar_flow does on Flex Sensor Agent

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

WHY IT NEEDS A POLICY

Why physics_add_laminar_flow needs a policy

This tool creates or modifies simulation model configuration by adding a physics module. It is reversible (the laminar flow physics can be removed or modified later), so it qualifies as Write rather than Execute or Destructive. Severity is medium because misconfiguration could lead to invalid simulations or incorrect results, but does not cause data loss or irreversible harm.

From the tool's definition Tool adds (creates/modifies) physics simulation components in COMSOL Multiphysics via 'Add Laminar Flow physics'. The description confirms it performs model building, which is a reversible operation within the simulation context.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

physics_add_laminar_flow Rate-limited

physics_add_laminar_flow 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": {
    "physics_add_laminar_flow": {
      "limits": [
        {
          "counter": "physics_add_laminar_flow_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 Flex Sensor Agent, so you can run agents against it safely.

FAQ

Questions about physics_add_laminar_flow

What does the physics_add_laminar_flow tool do? +

Add Laminar Flow physics for fluid dynamics. It is categorised as a Write tool in the Flex Sensor Agent MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on physics_add_laminar_flow? +

Register the Flex Sensor Agent MCP server in PolicyLayer and add a rule for physics_add_laminar_flow: 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 Flex Sensor Agent. Nothing to install.

What risk level is physics_add_laminar_flow? +

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

Can I rate-limit physics_add_laminar_flow? +

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

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

physics_add_laminar_flow is provided by the Flex Sensor Agent MCP server (tonghui666/flex-sensor-agent-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.