betr_todays_races

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

No annotations are provided, so the description carries the burden of behavioral disclosure. It describes the return data but does not mention authentication, rate limits, or whether it is purely read-only (likely, but not stated). It is adequate for a simple data retrieval tool.

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 concise, only two sentences plus a return structure. It is front-loaded with the purpose and provides a clear example. No redundant text.

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?

The description includes a sample return structure which partially compensates for the lack of output schema. However, it fails to explain the CountryFilter parameter or mention any constraints like pagination. Overall, it is minimally complete for a simple 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 input schema has one parameter, CountryFilter, but the description does not mention it at all. With 0% schema description coverage, the description should compensate but fails to add any meaning beyond the schema.

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 that the tool returns today's races grouped by code (Thoroughbred, Greyhound, Harness) for the homepage. It also provides a detailed return structure, distinguishing it from sibling racing tools.

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 says 'for the homepage' but does not explicitly tell when to use this tool versus alternatives like betr_featured_racing or betr_grouped_racecard. No exclusions or comparisons are provided.

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