mcp_opendaw_create_lofi_arrangement

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It states the return value ('Returns notes created per track and total'), describes humanization and swing characteristics ('laid-back 16th hi-hat with swing', 'lower velocity, humanized'), and explains how parameters like BPM and root affect the output. However, it does not mention potential side effects like whether existing notes on the target tracks are overwritten, which would be useful.

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 structured logically: purpose first, then stylistic details, parameter explanations, return info, and examples. It is longer than strictly necessary but the musical detail is arguably essential for achieving the intended genre. The front-loaded first line ensures immediate clarity.

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?

Given the tool's complexity (11 parameters, no annotations, no schema descriptions), the description is impressively complete. It covers the musical genre, per-track behavior, parameter ranges, and return values, and includes examples. It lacks explicit notes on velocity and start_beat behavior and does not detail the output schema content, but overall it equips an agent to invoke the tool correctly for typical lofi generation requests.

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?

Schema description coverage is 0%, but the description compensates with prose explanations for most parameters: bpm, bars, root, octave, unit_index, and the track index parameters. It provides meaningful defaults and rationale (e.g., '78 = chillhop sweet spot'). However, velocity and start_beat are not described, leaving a gap for those two parameters.

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 lofi hip-hop arrangement' and enumerates the components (boom-bap drums, jazzy chords, mellow bass, sleepy melody). This clearly distinguishes the tool from siblings like create_boom_bap or create_jazz_arrangement, which target narrower or different outputs.

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 provides clear context for when to use the tool: it is for generating a complete lofi hip-hop arrangement with specific stylistic characteristics and parameter defaults (e.g., 78 BPM, root F). It does not explicitly mention when not to use it or name alternatives, but the genre-specific details and examples make the intended use case obvious.

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