# ping_host

A execute tool on the Allcanuse MCP server.

Agent View of the PolicyLayer registry record for `ping_host`. HTML page: https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/ping-host

## Facts

- Tool: `ping_host`
- Server: Allcanuse (`ra1nyxin/allcanuse-mcp`) — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp.md
- Homepage: https://github.com/ra1nyxin/allcanuse-mcp
- Risk category: Execute (High risk)
- Registry record: grade F, 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": "ping_host",
    "arguments": {}
  }
}
```

## Why ping_host is rated High

'ping_host' most likely sends ICMP ping requests to a target host, which is a network diagnostic operation. This triggers an external network operation whose effects depend on the target argument (e.g., could be used to probe network topology or enumerate live hosts). With an empty description, confidence is reduced, but the name strongly suggests a network execution action.

From the tool's own definition: "Tool name 'ping_host'; description is empty or uninformative. Server description mentions 'network diagnostics' as one of its capabilities."

## Use case

AI agents invoke ping_host to trigger actions in Allcanuse. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "ping_host": {
      "limits": [
        {
          "counter": "ping_host_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Allcanuse (129)

- `cancel_background_task` — Destructive — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/cancel-background-task.md
- `delete_path` — Destructive — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/delete-path.md
- `kill_process` — Destructive — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/kill-process.md
- `capture_camera_photo` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/capture-camera-photo.md
- `capture_screenshot` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/capture-screenshot.md
- `check_c_syntax` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/check-c-syntax.md
- `compile_c_program` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/compile-c-program.md
- `create_background_task` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/create-background-task.md
- `deploy_and_update_service` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/deploy-and-update-service.md
- `evaluate_c_math_expression` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/evaluate-c-math-expression.md
- `extract_archive` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/extract-archive.md
- `format_c_code` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/format-c-code.md
- `generate_c_build_files` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/generate-c-build-files.md
- `generate_c_numeric_test_harness` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/generate-c-numeric-test-harness.md
- `http_request` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/http-request.md
- `optimize_images_for_memory` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/optimize-images-for-memory.md
- `pause_background_task` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/pause-background-task.md
- `preprocess_c_source` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/preprocess-c-source.md
- `raw_tcp_exchange` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/raw-tcp-exchange.md
- `resume_background_task` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/resume-background-task.md
- `run_cmd` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/run-cmd.md
- `run_powershell` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/run-powershell.md
- `run_shell` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/run-shell.md
- `scan_ports` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/scan-ports.md
- `start_managed_process` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/start-managed-process.md
- `start_process` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/start-process.md
- `stop_managed_process` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/stop-managed-process.md
- `tcp_connect` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/tcp-connect.md
- `trace_route` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/trace-route.md
- `udp_send_receive` — Execute — https://policylayer.com/tools/ra1nyxin-allcanuse-mcp/udp-send-receive.md
- …and 99 more: https://policylayer.com/tools/ra1nyxin-allcanuse-mcp.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=ra1nyxin-allcanuse-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/ra1nyxin-allcanuse-mcp