get_song_time

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

No annotations are provided, so the description carries the burden of behavioral disclosure. It adds useful detail by specifying the return fields (current_song_time, can_undo, can_redo) and the unit (beats), but it does not explicitly state whether the operation is read-only, has side effects, or requires special permissions. The 'get' prefix implies a read operation, but more explicit transparency would be better given the lack of annotations.

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, with two sentences that directly state the purpose and return values. Every word adds value, and there is no redundancy or filler. This is exemplary conciseness.

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 tool's simplicity (zero parameters, no output schema shown but indicated as existing), the description is complete enough for an agent to understand its function and return values. It could optionally mention related tools, but that's already covered in the usage guidelines dimension. For a zero-parameter getter, this is fully sufficient.

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 tool has zero parameters, so there is no semantic burden on the description. The schema coverage is 100% (vacuously). According to the rubric, the baseline for 0 params is 4, and there is no need for additional 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 states the tool gets the current song time position and undo/redo availability, using a specific verb and resource. However, it does not distinguish itself from the sibling tool 'get_song_smpte_time' which also retrieves time-related information, so it could be more explicit about the beat-based format.

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 on when to use this tool versus alternatives. For example, it does not mention that get_song_smpte_time should be used for SMPTE time or that this tool is the beat-based equivalent. The description simply states what the tool does without contextual usage directions.

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