get_playlists

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 mentions the return type ('List of playlists with metadata'), which adds some value, but lacks details on permissions, rate limits, error handling, or whether this is a read-only operation. For a tool with zero annotation coverage, this is insufficient to fully inform the agent.

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 brief and front-loaded with the main action, consisting of two sentences that efficiently convey the purpose and return value. However, the second sentence ('Returns: List of playlists with metadata') could be integrated more smoothly, and there is minor room for improvement in flow.

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 (0 parameters, output schema provided), the description is reasonably complete. It states what the tool does and the return type, and the output schema handles return values. However, it lacks context on behavioral aspects like permissions or limitations, which would be beneficial for full completeness.

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 input schema has 0 parameters with 100% coverage, so no parameter documentation is needed. The description does not add parameter details, which is appropriate, but it does not explicitly state 'no parameters required' or similar, preventing a perfect score. Baseline for 0 parameters is 4, as the schema fully covers the absence of inputs.

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 verb ('Get') and resource ('all playlists from the rekordbox database'), making the purpose evident. However, it does not explicitly distinguish this tool from sibling tools like 'get_playlist_tracks' or 'create_playlist', which would require more specific differentiation to achieve a score of 5.

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 provides no guidance on when to use this tool versus alternatives, such as 'get_playlist_tracks' for tracks within a playlist or 'search_tracks' for filtering. Without any context on usage scenarios or exclusions, it relies solely on the agent's inference from the tool name and description.

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