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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It does disclose the key rule that tensions substitute for chord tones and explicitly warns against simple stacking ('arranging practice, not stacking'). However, it does not describe the output format, what 'instrument-ready' means concretely, or any notable limitations or 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 compact and information-dense, with no filler or repetition. It front-loads the primary purpose, then explains the substitution rules and the two most behavior-relevant parameters, so every sentence contributes meaningful operational detail.

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 six parameters, no output schema, and no annotations, the description is not complete enough for an agent to confidently invoke the tool. It omits the meaning of style, octave, and keyContext, does not state what the returned voicing looks like, and provides no guidance on when to prefer this tool over its siblings.

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?

All six parameters appear in the schema with type information, so schema coverage is high and the baseline is 3. The description adds semantic value for previousNotes and voices, but leaves style, octave, keyContext, and chord underspecified. It compensates only partially for the missing parameter descriptions.

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 identifies the tool's function as producing instrument-ready voicings in a given style, with a specific resource (chord symbols) and a concrete approach (seat substitution). It does not explicitly differentiate itself from sibling tools like analyze_chord or reharmonize, but the output and domain are clearly stated.

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 gives useful parameter-level guidance ('pass voices: 5', 'pass previousNotes'), but it never states when to choose generate_voicing over the available alternatives. No exclusions or comparison against analyze_chord, conduct_band, or reharmonize are provided, leaving usage context largely implicit.

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