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mcp_opendaw_create_garage_arrangement

Generate a complete UK garage arrangement with 2-step drum pattern, swung hats, melodic bassline, offbeat chord stabs, and vocal-chop lead at 130 BPM in G minor.

Instructions

Create a UK garage arrangement — 130 BPM 2-step swing.

UK garage (UKG) is a British electronic genre evolving from US garage house with drum & bass influence. Key characteristics:

  • 2-step drum pattern: kick on 1, snare on 2 & 4, skip beats

  • Swing/shuffle feel (16th note swing)

  • Chopped vocal stabs and chord stabs

  • Deep bassline with melodic movement

  • 130-138 BPM, 4/4 time

  • Smooth, bumping, after-hours energy

Creates 4 tracks:

  1. Drums (track_index): 2-step kick (beat 1, sometimes 3), snare on 2 & 4, swung hats, skip-beat ghost notes

  2. Bass (track_index+1): Melodic bassline with octave jumps and syncopation, walking-ish movement

  3. Chords (track_index+2): Stab chords on offbeats, major 7th and minor 9th voicings, Rhodes-style

  4. Lead (track_index+3): Vocal-chop-style melodic stabs, short rhythmic phrases

Default key: G minor (common UKG key).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
bpmNo
barsNo
key_rootNoG
velocityNo
start_beatNo
unit_indexNo
track_indexNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior3/5

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

No annotations are provided, so the description must disclose behavioral traits. It details the tracks created and their indices but does not explain side effects (e.g., whether existing tracks are overwritten, what happens if track indices clash, or if required instruments are loaded). Some behavioral aspects are implied but not fully transparent.

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 starts with a clear one-line summary, then provides genre characteristics and track details. It is fairly concise, though the genre paragraph is detailed and may be unnecessary for tool invocation. Overall well-structured and front-loaded.

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

Completeness2/5

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

Given the complexity (7 parameters, 0% schema coverage), the description lacks parameter explanations and behavioral details. It covers the musical output but not how parameters affect it. An output schema exists but is not referenced, leaving the agent without knowledge of the return value.

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

Parameters2/5

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

Schema coverage is 0%, so the description should explain parameters. It only implicitly references track_index via track indices. The other 6 parameters (bpm, bars, key_root, velocity, start_beat, unit_index) are not explained. Defaults align with description (e.g., 130 BPM, G minor) but semantics are missing.

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 clearly states 'Create a UK garage arrangement' and specifies the 4 tracks created (drums, bass, chords, lead) with genre-specific details. It distinguishes from many sibling tools that create other genre arrangements (e.g., create_acid_arrangement, create_afrobeat_arrangement).

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

Usage Guidelines4/5

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

The tool name and description imply use when a UK garage arrangement is needed. The genre characteristics provide context. However, it does not explicitly state when not to use it or suggest alternatives among the many genre-specific arrangment tools.

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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