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mcp_opendaw_create_edm_arrangement

Create a full festival EDM arrangement with drums, offbeat bass, supersaw chords, and arpeggiated lead in F minor at 128 BPM. Automates the standard mainstage structure for instant track scaffolding.

Instructions

Create a full EDM arrangement — festival/mainstage 4-on-floor + supersaw + pluck + lead.

Electronic Dance Music — festival/mainstage sound:

  • Track 0: Drums — 4-on-the-floor kick (every beat), claps on 2+4, open hats on offbeats, 16th closed hats for energy. Riser/snare buildup at end of 8-bar phrases.

  • Track 1: Bass — offbeat bass (root on the "and" of each beat). Sub-bass frequency, driving, syncopated.

  • Track 2: Supersaw synth — wide chord stabs on beats 1 and 3. Root position triads with spread voicings. The "wall of sound" — mainstage synth.

  • Track 3: Lead synth — melody using scale degrees. Arpeggiated pattern with rhythmic repetition. The "hook".

F minor default — the most common EDM key (nice for both male and female vocals, sits well in club systems). 128 BPM (house/EDM standard). vi-IV-I-V progression (Fm-Db-Ab-Eb) — the "pop punk" progression that drives most festival anthems.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
bpmNo
barsNo
rootNoF
octaveNo
velocityNo
bass_trackNo
drum_trackNo
lead_trackNo
start_beatNo
unit_indexNo
synth_trackNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries the full burden and does explain what will be created in detail (track patterns, synth types, musical defaults). However, it does not disclose side effects such as whether existing tracks are overwritten, whether new tracks are created, or whether the operation is reversible. This is a create action, so some risk disclosure would improve transparency.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with a short opening, bulleted track breakdown, and a closing paragraph on key/BPM/progression. Every sentence conveys relevant musical detail, and the length is justified by the complexity of an 11-parameter arrangement tool.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The output schema covers return values, and the description provides a rich picture of the musical arrangement. Still, the description lacks explicit usage boundaries and some parameter semantics, making it not fully complete for an agent that needs to decide when and how to invoke this tool among many similar genre-arrangement tools.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The description adds meaning to several parameters by mapping track numbers to instrument roles (Track 0 = drums, Track 1 = bass, Track 2 = synth, Track 3 = lead) and by explaining defaults like F minor and 128 BPM. However, with 0% schema description coverage, it leaves parameters like velocity, octave, bars, start_beat, and unit_index unexplained, so compensation is only partial.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description opens with a specific verb and resource: "Create a full EDM arrangement". It further distinguishes this tool from its many genre siblings by detailing the festival/mainstage style and listing exact track roles (drums, bass, supersaw, lead).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description clearly implies use for EDM/festival/mainstage tracks and explains the default key, BPM, and progression, but it never explicitly says when to prefer this over sibling tools like create_house_arrangement or create_trance_arrangement. No exclusions or alternative tool mentions are provided, so usage guidance remains implicit.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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