set_time_signature

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

With no annotations provided, the description carries the burden of disclosing behavior. It indicates a setter operation ('Set') but doesn't elaborate on side effects, value constraints, or how existing settings are affected. The example hints at parameter pairing but doesn't add behavioral depth beyond the basic mutation.

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 entire description is a single, purposeful sentence with a concrete example. It front-loads the action and includes no filler, making it efficient and easily digestible.

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?

The tool is simple with two required parameters, and the description explains both the operation and the parameter mapping. An output schema exists, so return values don't need to be described. It lacks detail about constraints or side effects, but for this tool it is reasonably complete.

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%, but the description compensates by illustrating the exact parameter mapping: numerator=3, denominator=4 for 3/4. This adds meaningful semantics for both integer parameters, making their roles 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 clearly states 'Set the song time signature' with a concrete example (numerator=3, denominator=4 for 3/4). It is a specific verb+resource statement and stands apart from sibling tools like set_tempo or set_metronome.

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 does not explicitly discuss when to use this tool vs alternatives, but its clear purpose implies usage whenever a time signature change is needed. No alternatives or exclusions are mentioned.

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