mcp_opendaw_create_phonk_arrangement

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

No annotations are provided, so the description carries the burden of behavioral disclosure. It does disclose the output structure (three named tracks), pattern characteristics, and even a simulation detail ('glide is simulated by short overlapping notes'). However, it does not explain what happens to existing tracks, whether the tool is additive or overwriting, or how start_beat and unit_index influence placement, which are relevant for a multi-track mutation/generation tool.

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

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

The description is long but well-structured and front-loaded with the core purpose. The genre style block, per-track breakdown, parameter list, and examples each carry relevant information for generating a stylistically accurate arrangement. It could be slightly trimmed, but it is not wasteful.

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

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

For a high-complexity tool with 10 parameters and no parameter descriptions, the description is not fully complete. It does an excellent job covering the musical content and four key parameters, and the output schema exists for return values, but the unexplained parameters and missing placement/overwrite behavior leave gaps that make the tool only partially self-contained.

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

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

The input schema has 10 parameters with 0% schema description coverage, and the description only explains 4 of them (bpm, bars, root, octave). It provides helpful ranges and defaults for those four, but omits velocity, bass_track, drum_track, start_beat, unit_index, and cowbell_track entirely. Because the schema offers no descriptions and titles alone are weak, this leaves a significant gap for an agent trying to set track indices or timing.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description opens with a specific verb and resource: 'Create a full drift phonk arrangement — 3 tracks: drums + 808 + cowbell lead.' It clearly distinguishes this tool from sibling genre-arrangement tools by naming drift phonk and listing exact track types and style references (Kordhell, MC Slvr, LXST CXNTURY).

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

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

The description clearly states when to use this tool: when a drift phonk arrangement with drums, 808, and cowbell is needed. It provides rich genre context and parameters, but it does not explicitly call out alternatives or exclusion criteria (e.g., 'use create_trap_arrangement for trap'), so it stops short of a full when/why-not comparison.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.