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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds that the source is a 'public' page (implying no auth), but says nothing about rate limits, freshness, or failure modes for an invalid league.

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 front-loaded sentence that names verb, resource, source, and scope with zero filler. Nothing is wasted and the key constraint ('for one league') lands early.

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 simple one-parameter read-only list tool with an output schema already defined, the description covers what is returned and the scoping requirement. The only real gap is the accepted format of the 'league' value.

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?

Schema coverage is 0% and the single 'league' parameter has no type/format guidance beyond its name. The description confirms the parameter scopes results to one league but does not say whether a value like 'NFL' or an internal league ID/slug is expected, so it only partially compensates for the coverage gap.

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?

States a specific verb ('Returns') and resource ('the teams listed on DraftKings Sportsbook's public Teams page for one league'), and the 'for one league' scope implicitly separates it from the singular draftkings_team sibling. However, it never names draftkings_team or draftkings_leagues, so the agent must infer the plural-list vs. single-team distinction.

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 when-to-use guidance, no prerequisites, and no mention of alternatives such as draftkings_team (single team) or draftkings_leagues (league list). The agent must infer the use case purely from the purpose statement.

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