list_playlists

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

No annotations are provided, so the description must carry the full burden of behavioral disclosure. It only states the action (list) without any details about side effects (none expected), authorization needs, rate limits, or data freshness. This is insufficient for a tool with zero annotation coverage.

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: a single sentence of four words. This is efficient but arguably too terse, missing details that could improve clarity. It earns its place by stating the core purpose without fluff.

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?

Although an output schema exists (not shown), the description fails to mention that it returns a list, whether pagination is supported, or how to retrieve all playlists. For a simple list operation, this leaves significant gaps in the agent's understanding of the tool's behavior.

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 one parameter (limit) with no description, and the schema coverage is 0%. The tool description does not mention the limit parameter at all, so it adds no value beyond the schema. The agent cannot infer that limit controls pagination or default behavior from the description alone.

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 'List the channel's playlists' clearly states the verb (List) and resource (playlists), and it distinguishes this tool from siblings like create_playlist or delete_playlist. However, it does not specify which channel or any filtering context, so it's not maximally specific.

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 explicit guidance on when to use this tool versus alternatives, such as when to use list_playlists vs. list_playlist_items or create_playlist. There is no mention of prerequisites or exclusions.

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