echo_structured

A other tool on the Mcp Test Servers MCP server.

SERVERMcp Test Servers SOURCEmsfeldstein/mcp-test-servers

Low RISK CLASS

Category Other

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mcp-test-servers/echo-structured.md

WHAT IT DOES

What echo_structured does on Mcp Test Servers

AI agents call echo_structured as a supporting operation in Mcp Test Servers workflows.

RISK

Why echo_structured is rated Low

With no description available, classification is uncertain. The name 'echo_structured' implies the tool reflects or returns structured input back to the caller, which would be a benign read-like operation with no side effects. Confidence is low due to the absence of a description.

From the tool's definition Tool name is 'echo_structured' and description is empty. The word 'echo' suggests a read/passthrough operation with no side effects, but there is no description to confirm behavior.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs echo_structured safely

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

echo_structured Rate-limited

echo_structured 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_structured": {
      "limits": [
        {
          "counter": "echo_structured_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 Mcp Test Servers, apply this rule, and every echo_structured call is checked against it from then on.

FAQ

Questions about echo_structured

What does the echo_structured tool do? +

echo_structured is a other tool on the Mcp Test Servers MCP server. It is categorised as a Other tool in the Mcp Test Servers MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on echo_structured? +

Register the Mcp Test Servers MCP server in PolicyLayer and add a rule for echo_structured: 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 Mcp Test Servers. Nothing to install.

What risk level is echo_structured? +

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

Can I rate-limit echo_structured? +

Yes. Add a rate_limit block to the echo_structured 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_structured completely? +

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

echo_structured is provided by the Mcp Test Servers MCP server (msfeldstein/mcp-test-servers). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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