# set_tempo

Set the song tempo in BPM (20-999).

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

## Facts

- Tool: `set_tempo`
- 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_tempo",
    "arguments": {}
  }
}
```

## Why set_tempo is rated Medium

The tool creates or modifies a production parameter (tempo) within the DAW. This is a reversible write operation that changes the active song state. Severity is medium because unintended tempo changes during production could disrupt workflow and require manual correction, but cause no irreversible data loss or external system impact.

From the tool's own definition: "Tool name is 'set_tempo' and description states 'Set the song tempo in BPM (20-999)' — this modifies song tempo, a reversible parameter within Ableton Live."

## Use case

AI agents use set_tempo 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_tempo": {
      "limits": [
        {
          "counter": "set_tempo_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