# bench_echo

A other tool on the ChukMCPServer MCP server.

Agent View of the PolicyLayer registry record for `bench_echo`. HTML page: https://policylayer.com/tools/ibm-chuk-mcp-server/bench-echo

## Facts

- Tool: `bench_echo`
- Server: ChukMCPServer (`ibm/chuk-mcp-server`) — https://policylayer.com/tools/ibm-chuk-mcp-server.md
- Homepage: https://github.com/IBM/chuk-mcp-server
- Risk category: Other (Low risk)
- Registry record: grade B, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "bench_echo",
    "arguments": {}
  }
}
```

## Why bench_echo is rated Low

The description is empty, lowering confidence significantly. The 'bench_' prefix seen in sibling tool 'bench_add' suggests a benchmarking variant, and 'echo' typically reflects input without side effects, suggesting a Read/Other classification. Since it likely just returns input for performance testing purposes, Other or Read is most appropriate, but with low confidence due to missing description.

From the tool's own definition: "Tool name is 'bench_echo' and description is empty. Based on sibling tool 'echo' and the 'bench_' prefix (suggesting benchmarking), this likely reads/reflects input back."

## Use case

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

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches ChukMCPServer:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "bench_echo": {
      "limits": [
        {
          "counter": "bench_echo_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on ChukMCPServer (12)

- `multiply` — Execute — https://policylayer.com/tools/ibm-chuk-mcp-server/multiply.md
- `add` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/add.md
- `advanced_tool` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/advanced-tool.md
- `bench_add` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/bench-add.md
- `echo` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/echo.md
- `hello` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/hello.md
- `hello_azure` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/hello-azure.md
- `hello_gcf` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/hello-gcf.md
- `hello_lambda` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/hello-lambda.md
- `universal_tool` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/universal-tool.md
- `get_env` — Read — https://policylayer.com/tools/ibm-chuk-mcp-server/get-env.md
- `safe_lookup` — Read — https://policylayer.com/tools/ibm-chuk-mcp-server/safe-lookup.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=ibm-chuk-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/ibm-chuk-mcp-server