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mcp_opendaw_ppqn_to_parts

Convert PPQN positions to bars, beats, semiquavers, and ticks. Understand musical grid positions with active time signature.

Instructions

Convert a PPQN position to musical parts: bars, beats, semiquavers, ticks.

Useful for understanding where a position falls in the musical grid, accounting for time signature changes.

position_ppqn: Position in PPQN (960 = 1 quarter note).

Returns bars, beats, semiquavers, ticks, and the active time signature.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
position_ppqnYes

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 carries the burden. It mentions that the conversion accounts for time signature changes, implying state dependency, and lists return values. However, it does not explicitly state it is a read-only operation or disclose potential side effects.

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?

The description is concise and well-structured: a clear action statement, a brief use-case, parameter description, and return values. Every sentence contributes meaning without redundancy.

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

Completeness5/5

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

For a simple conversion tool with one parameter and an existing output schema, the description covers the purpose, parameter, and return values adequately. It is complete for the tool's complexity.

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?

The input schema has 0% description coverage, so the description's parameter explanation adds value. It gives the unit ('960 = 1 quarter note'), which provides crucial context beyond the schema's type and title.

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 it converts PPQN position to musical parts (bars, beats, semiquavers, ticks), with a specific verb and resource. It distinguishes itself from the sibling tool mcp_opendaw_ppqn_to_seconds, which converts to seconds.

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 description says it is useful for understanding where a position falls in the musical grid, accounting for time signature changes. This implies when to use, but does not explicitly exclude alternatives or provide when-not-to-use guidance.

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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