# show_notification

Display a macOS system notification with optional title, subtitle, and sound.

Agent View of the PolicyLayer registry record for `show_notification`. HTML page: https://policylayer.com/tools/io-github-heznpc-iconnect/show-notification

## Facts

- Tool: `show_notification`
- Server: Iconnect (`iconnect-mcp`) — https://policylayer.com/tools/io-github-heznpc-iconnect.md
- Install: `npx -y iconnect-mcp`
- Homepage: https://github.com/heznpc/iConnect
- 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": "show_notification",
    "arguments": {}
  }
}
```

## Why show_notification is rated High

This tool triggers an external system-level operation (displaying a macOS notification with sound), which is an action with observable side effects beyond simple data retrieval or storage. It interacts with the OS notification system, making it Execute. Misuse potential is low as it only shows a notification, but it could be used for spam or social engineering.

From the tool's own definition: "Display a macOS system notification with optional title, subtitle, and sound"

## Use case

AI agents invoke show_notification to trigger actions in Iconnect. 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 Iconnect:

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

## Other tools on Iconnect (278)

- `delete_contact` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-contact.md
- `delete_event` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-event.md
- `delete_note` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-note.md
- `delete_photos` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-photos.md
- `delete_playlist` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-playlist.md
- `delete_reminder` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-reminder.md
- `delete_reminder_list` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-reminder-list.md
- `delete_shortcut` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-shortcut.md
- `memory_forget` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/memory-forget.md
- `move_note` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/move-note.md
- `remove_from_playlist` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/remove-from-playlist.md
- `semantic_clear` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/semantic-clear.md
- `spotlight_clear` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/spotlight-clear.md
- `trash_file` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/trash-file.md
- `activate_tab` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/activate-tab.md
- `ai_agent` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/ai-agent.md
- `ai_chat` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/ai-chat.md
- `ai_plan_metrics` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/ai-plan-metrics.md
- `connect_bluetooth` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/connect-bluetooth.md
- `disconnect_bluetooth` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/disconnect-bluetooth.md
- `edit_shortcut` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/edit-shortcut.md
- `event_subscribe` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/event-subscribe.md
- `generate_image` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/generate-image.md
- `generate_text` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/generate-text.md
- `gws_raw` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/gws-raw.md
- `import_shortcut` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/import-shortcut.md
- `keynote_start_slideshow` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/keynote-start-slideshow.md
- `launch_app` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/launch-app.md
- `local_llm_generate` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/local-llm-generate.md
- `minimize_window` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/minimize-window.md
- …and 248 more: https://policylayer.com/tools/io-github-heznpc-iconnect.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=io-github-heznpc-iconnect · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-heznpc-iconnect