# set_master_volume

Set the master track volume (0.0-1.0).

Agent View of the PolicyLayer registry record for `set_master_volume`. HTML page: https://policylayer.com/tools/io-github-dreamrec-livepilot/set-master-volume

## Facts

- Tool: `set_master_volume`
- Server: Livepilot (`livepilot`) — https://policylayer.com/tools/io-github-dreamrec-livepilot.md
- Install: `npx -y livepilot`
- Homepage: https://github.com/dreamrec/LivePilot
- Risk category: Write (Medium 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_master_volume",
    "arguments": {}
  }
}
```

## Why set_master_volume is rated Medium

This tool modifies the master volume parameter of an Ableton Live project, which is a write operation—it changes data reversibly without executing arbitrary code or causing irreversible deletion. An AI agent misusing this could produce unintended loudness changes affecting the mix, but the effect is easily undone, warranting medium severity rather than high.

From the tool's own definition: "Tool name 'set_master_volume' and description 'Set the master track volume' indicate modification of an audio parameter in Ableton Live. This creates a reversible change to project state (volume can be adjusted back)."

## Use case

AI agents use set_master_volume to create or update resources in Livepilot, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Livepilot environment.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "set_master_volume": {
      "limits": [
        {
          "counter": "set_master_volume_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Livepilot (473)

- `clear_clip_automation` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/clear-clip-automation.md
- `clear_simpler_slices` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/clear-simpler-slices.md
- `corpus_remove_source` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/corpus-remove-source.md
- `delete_clip` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/delete-clip.md
- `delete_device` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/delete-device.md
- `delete_rack_variation` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/delete-rack-variation.md
- `delete_scene` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/delete-scene.md
- `delete_track` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/delete-track.md
- `discard_experiment` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/discard-experiment.md
- `discard_preview_set` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/discard-preview-set.md
- `discard_wonder_session` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/discard-wonder-session.md
- `flatten_track` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/flatten-track.md
- `force_arrangement` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/force-arrangement.md
- `memory_delete` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/memory-delete.md
- `remove_arrangement_notes` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/remove-arrangement-notes.md
- `remove_arrangement_notes_by_id` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/remove-arrangement-notes-by-id.md
- `remove_notes` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/remove-notes.md
- `remove_notes_by_id` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/remove-notes-by-id.md
- `remove_rack_macro` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/remove-rack-macro.md
- `remove_simpler_slice` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/remove-simpler-slice.md
- `remove_warp_marker` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/remove-warp-marker.md
- `splice_remove_from_collection` — Destructive — https://policylayer.com/tools/io-github-dreamrec-livepilot/splice-remove-from-collection.md
- `apply_automation_recipe` — Execute — https://policylayer.com/tools/io-github-dreamrec-livepilot/apply-automation-recipe.md
- `back_to_arranger` — Execute — https://policylayer.com/tools/io-github-dreamrec-livepilot/back-to-arranger.md
- `build_project_brain` — Execute — https://policylayer.com/tools/io-github-dreamrec-livepilot/build-project-brain.md
- `build_reference_profile` — Execute — https://policylayer.com/tools/io-github-dreamrec-livepilot/build-reference-profile.md
- `build_song_brain` — Execute — https://policylayer.com/tools/io-github-dreamrec-livepilot/build-song-brain.md
- `capture_stop` — Execute — https://policylayer.com/tools/io-github-dreamrec-livepilot/capture-stop.md
- `compile_goal_vector` — Execute — https://policylayer.com/tools/io-github-dreamrec-livepilot/compile-goal-vector.md
- `continue_playback` — Execute — https://policylayer.com/tools/io-github-dreamrec-livepilot/continue-playback.md
- …and 443 more: https://policylayer.com/tools/io-github-dreamrec-livepilot.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-dreamrec-livepilot · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-dreamrec-livepilot