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LofiFren

ableton-mcp-lofifren

by LofiFren

add_blended_personality_solo

Create a solo by blending two personality styles, interpolating numeric profile fields and selecting categorical pools based on mix ratio.

Instructions

Generate a solo from a blended personality — interpolated between two real personalities. Currently solo-only.

Parameters:

  • personality_a, personality_b: keys of two solo personalities

  • ratio: 0.0 = all A, 1.0 = all B, 0.5 = perfectly mixed

  • all other arguments: same as add_personality

Numeric profile fields (density, swing, range bounds, velocity range, chord-tone emphasis, etc.) are linearly interpolated. Categorical pools (scale modes, phrase arc) take from A when ratio < 0.5 and B otherwise.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
track_indexYes
clip_indexYes
personality_aYes
personality_bYes
ratioYes
chord_progressionYes
bars_per_chordNo
tempoNo
octave_offsetNo
seedNo
Behavior5/5

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

With no annotations provided, the description fully discloses behavioral details: it explains how numeric fields are linearly interpolated and categorical pools are selected based on ratio. It also clarifies that the tool is currently solo-only, providing essential 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 concise and front-loaded with the main purpose. It could be more structured (e.g., bullet points), but it avoids unnecessary verbosity and effectively communicates key information in a few sentences.

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?

Given the tool's complexity (10 params, no output schema), the description explains the blending logic well but leaves gaps: it doesn't specify what the generated solo contains or how it integrates with the session (though implicit from track/clip indices). The reference to add_personality is helpful but incomplete without that tool's description.

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?

Schema description coverage is 0%, so the description must compensate. It explains the three unique parameters (personality_a, personality_b, ratio) well, but for the remaining 7 common parameters it only references 'same as add_personality', which is insufficient standalone guidance.

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 the tool generates a solo from a blended personality interpolated between two real personalities. It distinguishes itself from siblings like 'add_personality' and 'add_personality_solo' by specifying the blending aspect and referencing 'same as add_personality' for common arguments.

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 implies usage when a blended solo personality is desired, but lacks explicit when-to-use or when-not-to-use guidance. It does not mention alternatives or exclusion criteria, leaving the agent to infer context.

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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