mcp_opendaw_create_metal_arrangement

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

With no annotations, the description carries full burden. It details the musical behavior (what notes are created on each track, patterns, scales). It notes return value ('notes created per track and total'). However, it does not specify whether existing notes on those tracks are overwritten or if the operation is additive, nor does it mention 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.

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

The description is well-structured with bullet points for tracks, clear parameter explanations, and examples. It is slightly verbose but every sentence adds value. It is front-loaded with purpose and provides a mix of technical and musical guidance.

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 complexity (11 parameters, 0% schema coverage, no annotations), the description covers the arrangement structure, track roles, scale theory, tempo implications, and parameter constraints (e.g., bars must be multiple of 4). It provides examples. Missing is explicit documentation of error cases or idempotency, but the output schema likely covers return details.

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 coverage is 0%, so description must compensate. It explains musical purpose for key parameters (bpm, bars, root, octave, track indices) and provides scale theory. However, parameters like velocity, start_beat, and unit_index are mentioned but not explained in musical context. The example usage partially compensates.

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 clearly states 'Create a full metal arrangement' and lists specific components (double kick drums, palm-muted riffs, power chords, shred lead). It distinguishes this tool from other genre-specific arrangement creators among siblings (e.g., create_rock_arrangement, create_blues_arrangement) by its focus on metal and detailed musical characteristics.

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 strong usage context by explaining how BPM ranges map to metal subgenres (thrash, traditional, extreme) and gives examples. However, it does not explicitly state when to use this tool versus other arrangement tools 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.