Get Public YouTube Playlist Items

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

No annotations are provided, so the description carries the transparency burden. It discloses that the operation is a read ('Gets') and that it returns one explicit page, not all items. However, it does not mention pagination mechanics (e.g., use of pageToken), authentication requirements, or rate limits, leaving some behavioral aspects undisclosed.

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 a single sentence of 15 words, front-loaded with the core action and resource. Every part adds value: 'Gets' indicates the operation, 'one explicit page' signals pagination behavior, 'public' narrows scope, and 'including item IDs and positions' clarifies key return fields. No waste or redundancy.

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 no output schema and no annotations, the description is not complete enough. It fails to explain how pagination works (despite the 'pageToken' parameter), what other fields are returned besides IDs and positions, or how to request specific pages. The tool's complexity (3 parameters) demands more context, which is absent.

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%, so the description must compensate for missing parameter explanations. The description does not mention the 'url', 'limit', or 'pageToken' parameters at all, nor explain their purpose or relationships. It only hints at the return format (item IDs and positions), leaving parameter semantics largely to the agent's inference from names.

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 one explicit page of a public YouTube playlist' with a specific verb and resource. It distinguishes from sibling tools like 'youtube_get_owned_playlist_items' by specifying 'public' and 'explicit page', and from 'youtube_list_owned_playlists' which is about listing playlists, not items.

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 clear context for use: this tool is for public playlists and returns a single page. It does not explicitly mention alternatives or exclusions, but the qualifiers 'public' and 'explicit page' implicitly differentiate it from owned-playlist variants, which is enough for a clear-but-not-explicit usage guideline.

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