pinnacle_carousel

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

No annotations are provided, so the description must disclose behavioral traits. It describes the return format (top-level array with specific fields), which is helpful, but lacks details on authentication, rate limits, or caching behavior. The absence of annotations lowers the baseline, but the return format adds value.

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 with two sentences: one stating the purpose and one detailing the return format. It is front-loaded with the purpose and avoids unnecessary information.

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 parameters, no output schema, and no annotations, the description sufficiently explains what the tool returns. It could mention if the carousel has a fixed number of items or any pagination, but overall it is complete for a simple data retrieval tool.

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 tool has zero parameters, so the baseline is 4. The description adds meaning by explaining the output structure, which compensates for the lack of parameters. Schema coverage is 100% by virtue of no params.

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 it returns a featured matchups carousel across all sports for homepage highlights, with a specific verb and resource. It distinguishes from sibling tools like pinnacle_matchup or pinnacle_league_matchups by focusing on a curated selection.

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 implies the tool is for homepage highlights but does not explicitly state when to use it over alternative pinnacle tools, nor does it provide guidance on when not to use it. Usage context is implied but not clarified.

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