set_tempo

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

With no annotations, the description carries the burden of behavioral disclosure. It communicates that the operation sets a value and gives the valid BPM range, but it does not mention side effects, whether the tempo is applied to the current project only, or what the response contains. For a simple setter this is adequate but not fully transparent.

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 extremely concise, consisting of one clear sentence and a single parameter definition. Every word earns its place, with no filler or repetition of schema information.

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 one-parameter setter with an output schema present, the description is largely complete: it states the action, the target, the parameter's meaning, and its valid range. It lacks explicit usage guidance and behavioral details, but the simplicity of the tool keeps these gaps minor.

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 fully compensates by explaining that bpm is 'Tempo in beats per minute (10-999)'. This adds unit, meaning, and an explicit validation range that the raw integer schema lacks.

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 uses a specific verb and resource: 'Set the song tempo (BPM)'. This makes the tool's function immediately clear and distinguishable from sibling tools like set_time_signature, set_master_volume, and set_master_pitch.

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 intended use is implied by 'Set the song tempo', but there is no explicit guidance about when to choose this over related settings or whether a project must be loaded first. It does not name alternatives or exclusions, so the agent must infer the usage context.

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