get_v1_user_playlists_by_username

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

No behavioral traits are disclosed. Without annotations, the description should explicitly state that this is a read-only operation, but it does not. No authentication or rate limit information is provided.

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 brief but suffers from under-specification. It is not concise in a helpful way; it fails to include essential information about the tool's functionality.

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 lack of output schema, annotations, and limited schema descriptions, the description is incomplete. It does not explain the return format or pagination behavior beyond a brief hint on page_id.

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 adds no value beyond the input schema. The schema covers only 33% of parameters with descriptions (page_id), and the description does not clarify the meaning of username or count limits.

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 is essentially a repetition of the endpoint name, providing minimal clarity about the tool's purpose. It does not differentiate this tool from siblings like get_v1_user_playlists_by_secUid, which serve a similar function.

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. There is no indication of when to use this tool versus alternatives, such as when to use username vs secUid for fetching playlists.

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