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mcp_opendaw_save_effect_preset

Save an audio effect chain as a shareable .opb preset file. Specify the unit and effect index, name, and optional description to create a preset for loading into openDAW.

Instructions

Save an audio effect chain as a .opb preset file.

Encodes the specified effect (and its position in the chain) into an openDAW preset bundle (.opb) using PresetEncoder.encodeEffects(). The file can be shared, drag-and-dropped into openDAW, or loaded via mcp_opendaw_load_effect_preset.

unit_index: Audio unit index containing the effect. effect_index: Index of the effect within the unit's audio effect chain. name: Preset name (shown in preset browser). description: Optional description of what the preset does. output_path: Directory to save the .opb file. Defaults to OPENDAW_EXPORT_DIR or /tmp.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameYes
unit_indexYes
descriptionNo
output_pathNo
effect_indexYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior3/5

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

No annotations provided, so description carries burden. It explains encoding using PresetEncoder.encodeEffects() but does not disclose side effects, error conditions, or permission requirements. Adequate but could be more thorough.

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?

Concise, front-loaded with main action, then encoding detail, usage, and parameter list. Every sentence adds value with no redundancy.

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?

Covers purpose, encoding, usage, and parameters. Lacks info on validation or format requirements (e.g., .opb extension), but output schema exists so return values are covered.

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

Parameters4/5

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

Schema coverage is 0%, but description adds one-line explanations for all 5 parameters, clarifying their roles beyond the schema's type info.

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 verb 'Save' and resource 'audio effect chain as .opb preset file'. It distinguishes from sibling tool mcp_opendaw_load_effect_preset which loads presets.

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?

Provides context for usage: sharing, drag-and-drop, or loading via load_effect_preset. Lists required parameters but does not explicitly exclude alternative save tools like export_preset.

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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