universal_tool

A other tool on the ChukMCP MCP server.

SERVERChukMCPServer SOURCEibm/chuk-mcp-server

Low RISK CLASS

Category Other

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade B, identity unverified Pull the record →

This record as markdown: /tools/ibm-chuk-mcp-server/universal-tool.md

WHAT IT DOES

What universal_tool does on ChukMCPServer

AI agents call universal_tool as a supporting operation in ChukMCPServer workflows.

RISK

Why universal_tool is rated Low

With no description and only a generic name, there is insufficient information to classify this tool into any specific risk category. Confidence is very low; defaulting to Other with low severity, but actual risk could be higher depending on implementation.

From the tool's definition Tool description is empty and the name 'universal_tool' provides no actionable information about what it does.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs universal_tool safely

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

universal_tool Rate-limited

universal_tool 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": {
    "universal_tool": {
      "limits": [
        {
          "counter": "universal_tool_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 ChukMCPServer, apply this rule, and every universal_tool call is checked against it from then on.

FAQ

Questions about universal_tool

What does the universal_tool tool do? +

universal_tool is a other tool on the ChukMCPServer MCP server. It is categorised as a Other tool in the ChukMCPServer MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on universal_tool? +

Register the ChukMCPServer MCP server in PolicyLayer and add a rule for universal_tool: 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 ChukMCPServer. Nothing to install.

What risk level is universal_tool? +

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

Can I rate-limit universal_tool? +

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

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

universal_tool is provided by the ChukMCPServer MCP server (ibm/chuk-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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