CVLIQ

Calculate liquid control valve Cv and Kv from flow conditions

SERVEREngScript Engineering MCP SOURCEhttps://engscript.com/mcp

Low RISK CLASS

Category Other

Parameters 94 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-engscript-mcp/cvliq.md

WHAT IT DOES

What CVLIQ does on EngScript Engineering MCP

AI agents call CVLIQ as a supporting operation in EngScript Engineering MCP workflows.

Parameter	Type	Required	Description
`Q`	object	Yes	Liquid volumetric flow rate
`FL`	object	—	Liquid pressure recovery factor (optional, default 0.9)
`P1`	object	Yes	Upstream pressure
`P2`	object	Yes	Downstream pressure
`Pc`	object	—	Liquid critical pressure (optional, default 22120 kPa)
`Pv`	object	—	Liquid vapor pressure (optional, default 0 kPa)
`rho`	object	Yes	Liquid density
`Cv_unit`	string	—	Output Cv unit
`Kv_unit`	string	—	Output Kv unit

Parameters from the server's own tool schema.

RISK

Why CVLIQ is rated Low

Without any rule in front of it, every call an agent makes to CVLIQ happens silently: no trail, no cap, no way to know it misbehaved until something breaks downstream.

Risk signalsHigh parameter count (23 properties)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs CVLIQ safely

PolicyLayer is an MCP gateway: it sits between your AI agents and EngScript Engineering MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For CVLIQ, this is the rule to start with:

CVLIQ Rate-limited

CVLIQ gets a rate cap, and everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "CVLIQ": {
      "limits": [
        {
          "counter": "cvliq_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

SET A RULE FOR THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect EngScript Engineering MCP, apply this rule, and every CVLIQ call is checked against it from then on.

FAQ

Questions about CVLIQ

What does the CVLIQ tool do? +

Calculate liquid control valve Cv and Kv from flow conditions. It is categorised as a Other tool in the EngScript Engineering MCP MCP Server, which means it performs auxiliary operations.

What parameters does CVLIQ accept? +

CVLIQ accepts 9 parameters: Q, FL, P1, P2, Pc, Pv, rho, Cv_unit, Kv_unit. Required: Q, P1, P2, rho. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on CVLIQ? +

Register the EngScript Engineering MCP server in PolicyLayer and add a rule for CVLIQ: 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 EngScript Engineering MCP. Nothing to install.

What risk level is CVLIQ? +

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

Can I rate-limit CVLIQ? +

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

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

CVLIQ is provided by the EngScript Engineering MCP server (https://engscript.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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