Create an empty MIDI clip in a session clip slot. Use when the target MIDI track and clip slot are known and a new clip is needed. NOT idempotent for occupied slots; wrapped in an undo step and verified by returned clip length/name.
AI agents use create_midi_clip to create or update resources in Ableton Mind — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ableton Mind environment.
This tool creates (writes) new MIDI clip objects in the session, which is a reversible operation (wrapped in an undo step per the description). It does not execute arbitrary code, delete data, or move money. The medium severity reflects that misuse could clutter a music project with unwanted clips, but the operation is fully reversible via undo and does not destroy or execute external commands.
From the tool's definition Tool description states it 'Create[s] an empty MIDI clip' and explicitly notes it is 'NOT idempotent for occupied slots', indicating it modifies state by creating new data structures in Ableton Live's session.
Attacks that exploit this kind of access
Create an empty MIDI clip in a session clip slot. Use when the target MIDI track and clip slot are known and a new clip is needed. NOT idempotent for occupied slots; wrapped in an undo step and verified by returned clip length/name. It is categorised as a Write tool in the Ableton Mind MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Ableton Mind MCP server in PolicyLayer and add a rule for create_midi_clip: 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 Mind. Nothing to install.
create_midi_clip 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 create_midi_clip 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 create_midi_clip. 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.
create_midi_clip is provided by the Ableton Mind MCP server (ableton-mind). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →