echo

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/echo.md

WHAT IT DOES

What echo does on ChukMCPServer

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

RISK

Why echo is rated Low

The name 'echo' typically implies returning/reflecting input back to the caller, which is a read/passthrough operation with no side effects. However, the description is empty, so we cannot be certain. Given the context of sibling tools like 'hello', 'bench_echo', and 'add', this appears to be a simple echo utility. Severity is low as misuse would have minimal blast radius.

From the tool's definition Tool name is 'echo' and description is empty or uninformative.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

echo Rate-limited

echo 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": {
    "echo": {
      "limits": [
        {
          "counter": "echo_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 echo call is checked against it from then on.

FAQ

Questions about echo

What does the echo tool do? +

echo 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 echo? +

Register the ChukMCPServer MCP server in PolicyLayer and add a rule for echo: 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 echo? +

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

Can I rate-limit echo? +

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

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

echo 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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