# set_volume

Set the system output volume (0-100) and/or mute state.

Agent View of the PolicyLayer registry record for `set_volume`. HTML page: https://policylayer.com/tools/io-github-heznpc-iconnect/set-volume

## Facts

- Tool: `set_volume`
- 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": "set_volume",
    "arguments": {}
  }
}
```

## Why set_volume is rated High

This tool triggers an external system operation (changing audio output volume or mute state) on the host OS. It doesn't read data, write persistent data, or destroy anything, but it does execute a system-level action. Misuse could disrupt audio output but has minimal blast radius.

From the tool's own definition: "Set the system output volume (0-100) and/or mute state"

## Use case

AI agents invoke set_volume 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": {
    "set_volume": {
      "limits": [
        {
          "counter": "set_volume_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