# ping

Ping a host to check reachability and measure round-trip latency. Private/loopback addresses are blocked by default.

Agent View of the PolicyLayer registry record for `ping`. HTML page: https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/ping

## Facts

- Tool: `ping`
- Server: Terminal Guardian (`7majesty-m/terminal-guardian-mcp`) — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp.md
- Homepage: https://github.com/7Majesty-M/terminal-guardian-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",
    "arguments": {}
  }
}
```

## Why ping is rated High

Ping executes a network diagnostic command that sends ICMP packets to an external host. It triggers an external network operation whose effects depend on the target argument. While read-like in intent (measuring latency/reachability), it actively executes a system-level network operation.

From the tool's own definition: "Ping a host to check reachability and measure round-trip latency. Private/loopback addresses are blocked by default."

## Use case

AI agents invoke ping to trigger actions in Terminal Guardian. 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 Terminal Guardian:

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

## Other tools on Terminal Guardian (24)

- `kill_process` — Destructive — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/kill-process.md
- `docker_exec` — Execute — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/docker-exec.md
- `run_command` — Execute — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/run-command.md
- `ssh_exec` — Execute — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/ssh-exec.md
- `ssh_test` — Execute — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/ssh-test.md
- `hello` — Other — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/hello.md
- `analyze_command` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/analyze-command.md
- `dns_lookup` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/dns-lookup.md
- `docker_logs` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/docker-logs.md
- `docker_ps` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/docker-ps.md
- `docker_stats` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/docker-stats.md
- `get_env` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/get-env.md
- `git_diff` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/git-diff.md
- `git_log` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/git-log.md
- `git_status` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/git-status.md
- `git_suggest_commit` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/git-suggest-commit.md
- `http_request` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/http-request.md
- `list_files` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/list-files.md
- `list_processes` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/list-processes.md
- `list_templates` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/list-templates.md
- `read_file` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/read-file.md
- `search_files` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/search-files.md
- `ssh_list_profiles` — Read — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/ssh-list-profiles.md
- `apply_template` — Write — https://policylayer.com/tools/7majesty-m-terminal-guardian-mcp/apply-template.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=7majesty-m-terminal-guardian-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/7majesty-m-terminal-guardian-mcp