Set the mixer fader volume for a track directly. This controls the actual track fader, not any device parameter. Volume scale (normalized): 0.0 = silence 0.85 = 0 dB (unity gain, Ableton's default fader position) 1.0 = maximum (~+6 dB) Parameters: - track_index: Track number (1-based). Return tra...
AI agents use set_track_volume to create or update resources in Ableton MCP Extended — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ableton MCP Extended environment.
This tool creates a reversible modification to track volume settings. It does not execute arbitrary code, delete data, or trigger financial transactions. While it affects audio output, the change can be immediately undone by setting a different volume value. This fits the Write category (modifies data reversibly).
From the tool's definition Tool directly modifies track mixer fader volume parameter in Ableton Live session. Description states 'Set the mixer fader volume for a track directly,' indicating a reversible state change to an audio parameter.
Documented attack patterns abuse exactly the kind of access set_track_volume gives an agent:
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_track_volume:
{
"version": "1",
"default": "deny",
"tools": {
"set_track_volume": {
"limits": [
{
"counter": "set_track_volume_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}set_track_volume stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Set the mixer fader volume for a track directly. This controls the actual track fader, not any device parameter. Volume scale (normalized): 0.0 = silence 0.85 = 0 dB (unity gain, Ableton's default fader position) 1.0 = maximum (~+6 dB) Parameters: - track_index: Track number (1-based). Return tracks come after session tracks. - volume: Normalized volume 0.0–1.0. Use 0.85 for unity (0 dB). It is categorised as a Write tool in the Ableton MCP Extended MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Ableton MCP Extended MCP server in PolicyLayer and add a rule for set_track_volume: 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.
set_track_volume is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the set_track_volume 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.
Set action: deny in the PolicyLayer policy for set_track_volume. 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.
set_track_volume 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.
Deterministic rules across all 46 Ableton MCP Extended tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
46 Ableton MCP Extended tools catalogued and risk-classified — across an index of 42,500+ MCP servers.