set_song_time

THE RISK

High Risk

This tool controls playback position in Ableton Live, which is an external operation that changes the DAW's transport state. It doesn't read, write persistent data, or delete anything, but it does trigger a real-time action in external software. Severity is low because misuse only affects playback position, which is easily corrected.

From the tool's definition 'Jump playback to a position' — triggers an external operation in Ableton Live affecting playback transport state

Documented attack patterns abuse exactly the kind of access set_song_time gives an agent:

HOW TO CONTROL SET_SONG_TIME

PolicyLayer is an MCP gateway — it sits between your AI agents and Ableton MCP Extended, and nothing reaches the server without passing your rules. This is the rule we recommend for set_song_time:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "set_song_time": {
      "limits": [
        {
          "counter": "set_song_time_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

set_song_time stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Ableton MCP Extended — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

More Ableton MCP Extended tools

Destructive delete_arrangement_clip Delete an arrangement clip. Parameters: - track_index: Track number (1-based). Destructive delete_cue_point Delete a cue point at a position. Parameters: - bar: Bar number (1-based). - Destructive delete_device Delete a device from a track. Parameters: - track_index: Track number (1-based). Destructive delete_track Delete a track from the Ableton session. Parameters: - track_index: Track number Execute fire_clip Start playing a clip. Parameters: - track_index: Track number (1-based). - cl Execute navigate_device_preset navigate_device_preset Execute start_playback Start playing the Ableton session. Execute stop_clip Stop playing a clip. Parameters: - track_index: Track number (1-based). - cli

All 46 Ableton MCP Extended tools →

Execute tools on other servers

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Go deeper

High-risk tools in Ableton MCP Extended → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

What does the set_song_time tool do? +

Jump playback to a position. Parameters: - bar: Bar number (1-based). Takes precedence over beat. - beat: Beat position (0-based). It is categorised as a Execute tool in the Ableton MCP Extended MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on set_song_time? +

Register the Ableton MCP Extended MCP server in PolicyLayer and add a rule for set_song_time: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Ableton MCP Extended. Nothing to install.

What risk level is set_song_time? +

set_song_time is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit set_song_time? +

Yes. Add a rate_limit block to the set_song_time rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block set_song_time completely? +

Set action: deny in the PolicyLayer policy for set_song_time. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides set_song_time? +

set_song_time is provided by the Ableton MCP Extended MCP server (uisato/ableton-mcp-extended). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Ableton MCP Extended tool call.

Deterministic rules across all 46 Ableton MCP Extended tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

GOVERN ABLETON MCP EXTENDED →

Free to start. No card required.

46 Ableton MCP Extended tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

// WHAT SET_SONG_TIME ON ABLETON MCP EXTENDED DOES

// THE RISK

// HOW TO CONTROL SET_SONG_TIME

// EXPLORE