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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety and data provenance are covered. The description's only added behavioral signal is 'currently prioritized,' implying dynamic/curated content, which is modest but real context; it says nothing about refresh cadence or link contents.

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?

A single short sentence with zero waste, and the key qualifier ('currently prioritized') is front-loaded. It is efficient but fragmentary rather than a well-formed statement of purpose.

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?

With an output schema present and annotations covering the safety profile, the description need not explain return values. However, for a zero-param tool sitting among many draftkings league tools, it is not complete enough to tell an agent what the 'quick links' are or when they should be preferred.

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 takes zero parameters, so the baseline is 4 and there is no parameter semantics for the description to compensate for.

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 a resource ('DraftKings Sportsbook currently prioritized league shortcuts') but uses a noun phrase with no verb, leaving it unclear whether it returns, lists, or resolves links. It does not differentiate itself from close siblings such as draftkings_featured_leagues, draftkings_leagues, or draftkings_live.

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?

There is no statement of when to use this tool versus alternatives, no prerequisites, and no mention of the sibling league tools an agent might otherwise pick. The word 'prioritized' hints at curated ordering but gives no actionable selection guidance.

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