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effect_vocal_reduction

Remove or isolate vocals from a stereo track. Adjust frequency cutoffs and strength for precise control.

Instructions

Vocal Reduction and Isolation: remove or isolate vocals from a stereo track.

Args: action: 0=Remove Vocals, 1=Isolate Vocals, 2=Remove Vocals (Mono), 3=Isolate Vocals (Mono), 4=Remove Center, 5=Isolate Center. Default: 0 low_cutoff: Low frequency cutoff in Hz. Default: 120 high_cutoff: High frequency cutoff in Hz. Default: 9000 strength: Effect strength (0-50). Default: 1.0

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
actionNo
strengthNo
low_cutoffNo
high_cutoffNo
Behavior3/5

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

With no annotations, the description carries full burden. It discloses the actions and parameters but does not mention whether the operation is destructive, if prerequisites like stereo track exist, or undo behavior.

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

Conciseness5/5

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

Two sentences plus a structured Args list. Every sentence provides necessary information without redundancy. Front-loaded with purpose.

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

Completeness4/5

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

Given no output schema or annotations, the description covers parameters well but omits output behavior (e.g., modifies track in place? returns result?). Still mostly complete for a simple effect tool.

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

Parameters5/5

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

Schema has 0% description coverage, but the description provides detailed semantics for all parameters: action mapping (0-5), frequency cutoffs with default Hz, and strength range. This adds substantial value beyond the schema.

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?

Description clearly states the tool removes or isolates vocals from a stereo track, with explicit actions distinguishing it from other effects like high-pass filter or auto cleanup.

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?

No explicit guidance on when to use this tool versus alternatives like auto_cleanup_vocal or effect_repair. The action options imply usage but context is not stated.

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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