sportsbet_racing_best_bets

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

Annotations already mark the tool as readOnly, idempotent, and openWorld; the description adds useful behavioral context about authentication, noting it works without a key and that a token unlocks more. The return shape is also disclosed, which complements the lack of an output schema.

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 compact and front-loaded: purpose, return shape, then auth. Every line adds useful information with no filler or redundant resstating of the tool name.

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?

For a zero-parameter read-only tool, this is mostly complete: the return structure and auth requirements are both covered. It could be more explicit about whether the best bets are current/upcoming or how this compact form differs from the with_events variant, but these are minor gaps.

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 and schema description coverage is 100%, so there is no parameter ambiguity to resolve. The baseline of 4 applies because there is nothing additional the description needs to explain about parameters.

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 identifies the tool as providing editorially-selected best bets across racing and includes a concrete return shape, making its function reasonably clear. It does not explicitly differentiate itself from the similarly named sportsbet_racing_best_bets_with_events sibling, so it misses some distinction opportunity.

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 gives no guidance on when to prefer this tool over closely related alternatives such as sportsbet_racing_best_bets_with_events or pointsbet_racing_tips. The only use signal is implicit in the phrase 'best bets across racing,' leaving the agent to infer when it should be selected.

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