HTRLOSSEFF

Calculate fired heater loss efficiency from ambient temperature, stack gas temperature and excess oxygen

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

Low RISK CLASS

Category Other

Parameters 44 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

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

WHAT IT DOES

What HTRLOSSEFF does on EngScript Engineering MCP

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

Parameter	Type	Required	Description
`Ta`	object	Yes	Ambient temperature
`Tg`	object	Yes	Stack gas temperature
`Type`	object	Yes	Fuel type
`exO2`	object	Yes	Excess oxygen

Parameters from the server's own tool schema.

RISK

Why HTRLOSSEFF is rated Low

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

Risk signalsHigh parameter count (11 properties)

Attacks that exploit this kind of access

RECOMMENDED RULE

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

HTRLOSSEFF Rate-limited

HTRLOSSEFF 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": {
    "HTRLOSSEFF": {
      "limits": [
        {
          "counter": "htrlosseff_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 HTRLOSSEFF call is checked against it from then on.

FAQ

Questions about HTRLOSSEFF

What does the HTRLOSSEFF tool do? +

Calculate fired heater loss efficiency from ambient temperature, stack gas temperature and excess oxygen. It is categorised as a Other tool in the EngScript Engineering MCP MCP Server, which means it performs auxiliary operations.

What parameters does HTRLOSSEFF accept? +

HTRLOSSEFF accepts 4 parameters: Ta, Tg, Type, exO2. Required: Ta, Tg, Type, exO2. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on HTRLOSSEFF? +

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

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

Can I rate-limit HTRLOSSEFF? +

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

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

HTRLOSSEFF 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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