LMTD

Calculate LMTD of heat exchanger

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

Low RISK CLASS

Category Other

Parameters 54 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

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

WHAT IT DOES

What LMTD does on EngScript Engineering MCP

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

Parameter	Type	Required	Description
`Tci`	object	Yes	Cold inlet temperature
`Tco`	object	Yes	Cold outlet temperature
`Thi`	object	Yes	Hot inlet temperature
`Tho`	object	Yes	Hot outlet temperature
`LMTD_unit`	string	—	Output LMTD unit

Parameters from the server's own tool schema.

RISK

Why LMTD is rated Low

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

Risk signalsHigh parameter count (13 properties)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs LMTD 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 LMTD, this is the rule to start with:

LMTD Rate-limited

LMTD 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": {
    "LMTD": {
      "limits": [
        {
          "counter": "lmtd_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 LMTD call is checked against it from then on.

FAQ

Questions about LMTD

What does the LMTD tool do? +

Calculate LMTD of heat exchanger. It is categorised as a Other tool in the EngScript Engineering MCP MCP Server, which means it performs auxiliary operations.

What parameters does LMTD accept? +

LMTD accepts 5 parameters: Tci, Tco, Thi, Tho, LMTD_unit. Required: Tci, Tco, Thi, Tho. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on LMTD? +

Register the EngScript Engineering MCP server in PolicyLayer and add a rule for LMTD: 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 LMTD? +

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

Can I rate-limit LMTD? +

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

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

LMTD 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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