util_map_range

Map a value from one range into another

SERVERDelx MCP Server SOURCEdelx-mcp-server

Low RISK CLASS

Category Read

Parameters 55 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-davidmosiah-delx-mcp-server/util-map-range.md

WHAT IT DOES

What util_map_range does on Delx MCP Server

AI agents call util_map_range to retrieve information from Delx MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`value`	integer	Yes	Input field: value.
`in_max`	integer	Yes	Input field: in max.
`in_min`	integer	Yes	Input field: in min.
`out_max`	integer	Yes	Input field: out max.
`out_min`	integer	Yes	Input field: out min.

Parameters from the server's own tool schema.

RISK

Why util_map_range is rated Low

Even though util_map_range only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs util_map_range safely

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

util_map_range Allowed

util_map_range is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "util_map_range": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about util_map_range

What does the util_map_range tool do? +

Map a value from one range into another. It is categorised as a Read tool in the Delx MCP Server MCP Server, which means it retrieves data without modifying state.

What parameters does util_map_range accept? +

util_map_range accepts 5 parameters: value, in_max, in_min, out_max, out_min. Required: value, in_max, in_min, out_max, out_min. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on util_map_range? +

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

What risk level is util_map_range? +

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

Can I rate-limit util_map_range? +

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

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

util_map_range is provided by the Delx MCP Server MCP server (delx-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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