create_playlist_preview

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

With no annotations, the description must disclose behavioral traits. It indicates creation (a write operation) but provides no details about side effects, authentication needs, rate limits, or what happens to existing data. The behavior is minimally 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 (one sentence), but it sacrifices substance for brevity. It front-loads the verb and resource but fails to provide necessary details. It is not verbose, but it is too terse to be effective.

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 complexity (3 parameters, one nested object, no output schema) and lack of annotations, the description is completely inadequate. It does not explain the tool's behavior, return values, or parameter meanings, leaving the agent with insufficient context to use the tool correctly.

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%, meaning the schema itself provides no parameter descriptions. The description adds no information about parameters, such as what 'query' object structure should be or the meaning of 'candidate_track_ids'. The agent must guess parameter semantics.

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 states a verb ('Create') and a resource ('playlist preview'), which provides a basic purpose. However, it is vague because it does not clarify what a 'saved playlist preview' is or how it differs from siblings like 'get_playlist_preview'. It is not a tautology but lacks specificity.

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 usage guidelines are provided. The description does not indicate when to use this tool versus alternatives such as 'get_playlist_preview' or 'create_youtube_music_playlist'. There are no prerequisites, context, or exclusions mentioned.

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