playlists_get_focused_next

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

No annotations are provided, so the description carries full burden. It states 'Get' implying a read operation, but doesn't disclose behavioral traits like whether it's idempotent, what happens if no playlist is focused, if it returns metadata or the item content, or error conditions. This leaves significant gaps for a tool that likely interacts with a media system.

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, clear sentence with no wasted words. It's front-loaded with the core action and target, making it efficient and easy to parse.

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 of media playlist systems and lack of annotations or output schema, the description is incomplete. It doesn't explain what 'next item' means (e.g., in playback order), what data is returned, or how it relates to sibling tools. For a tool in this context, more behavioral and usage context is needed.

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 doesn't add parameter details, which is appropriate here. A baseline of 4 is given since the schema fully covers the absence of parameters, and the description doesn't need to compensate.

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 action ('Get') and target ('the next item in the focused playlist'), making the purpose understandable. However, it doesn't explicitly differentiate from sibling tools like 'playlists_get_focused_previous' or 'audio_trigger_focused_next', which would require mentioning it's specifically for retrieval rather than triggering playback.

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 guidance is provided on when to use this tool versus alternatives. With many sibling tools involving playlists (e.g., 'playlists_get_focused', 'playlists_trigger_focused_next', 'audio_get_focused_playlist'), the description lacks context about prerequisites (e.g., whether a playlist must be focused first) or distinctions from triggering actions.

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