mcp_opendaw_create_comping

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

No annotations are present, so the description bears the full burden. It explains that the tool creates notes on a track with specific parameters and returns notes, chords, and rhythm pattern. While it doesn't explicitly state non-destructive behavior or permission requirements, it gives sufficient detail about what the tool modifies and returns. Minor gap: no mention of whether it overwrites existing notes.

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: a concise purpose statement, sibling differentiation, then detailed parameter breakdown. It is front-loaded with the key concept. However, it is somewhat long; a few sentences could be trimmed without losing clarity. Still, it earns its length with useful context.

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 (9 parameters, no annotations, but output schema exists), the description is complete. It covers all parameters with examples, explains the return value, and provides musical context. No gaps remain for an agent to understand invocation requirements.

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 0% description coverage for parameters, so the description must provide full meaning. It does: every parameter (chords, rhythm, unit_index, track_index, start_beat, chord_octave, velocity, note_spacing, syncopation) is explained with format, defaults, and examples. The rhythm parameter even includes multiple pattern examples with musical context. This far exceeds schema capabilities.

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 the tool creates 'comping — rhythmic chordal accompaniment' and explicitly distinguishes it from sibling tools like create_chord_progression and create_stab by contrasting sustained vs rhythmic patterns. The verb 'create' and resource 'comping' are specific and unambiguous.

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 explicit when-to-use guidance: 'Unlike create_chord_progression (sustained blocks) or create_stab (house stabs), comping gives each chord a rhythmic identity — the chord follows the groove.' This clearly explains the context and alternatives.

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