set_time_signature

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 only states 'Set' without mentioning side effects, reversibility, or any preconditions. For a mutation tool affecting the global time signature, this is a notable gap, though the simplicity of the operation mitigates the impact somewhat.

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 one concise sentence followed by a compact argument list. It is front-loaded with the main action and contains no filler or redundant 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 simple two-parameter setter, the description covers the essential purpose and parameters. However, it lacks usage guidance, validation constraints (e.g., valid denominator values), and contextual context about when to apply this vs other timing tools, leaving some gaps for an agent trying to decide when to invoke it.

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 description explicitly explains both numerator and denominator with musical examples ('4 for 4/4'), which the schema does not provide. The schema only lists them as integers, so the description adds meaningful semantic context and makes parameter intent clear.

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 the specific verb 'Set' with the resource 'the song time signature'. The qualifier 'song' distinguishes it from the sibling tool set_scene_time_signature, indicating a global scope rather than a scene-specific one.

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?

No guidance is provided about when to use this tool vs alternatives like set_scene_time_signature or set_tempo. The description simply states the action without any contextual usage instructions or exclusions.

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