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 useful context beyond that: the sitemaps are 'current' and 'public', and the return value is a slug used for downstream selection, which tells the agent this is a non-destructive discovery call.

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 covers purpose, return value, and the follow-up tool with no filler. Every clause earns its place.

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 discovery tool with annotations covering safety and an output schema covering the response shape, the description supplies everything needed: what it returns and how that output feeds sportskeeda_sitemap_items.

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. There is nothing for the description to clarify about inputs, and it doesn't introduce spurious parameter claims.

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 (discover) and resource (all current public Sportskeeda sitemaps), plus exactly what is returned (the slug). It names the follow-up tool sportskeeda_sitemap_items, so an agent can separate this discovery step from the item-fetch step without opening either schema.

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 clearly signals how this tool is used in a chain: discover sitemaps, then use the slug to select article/topic/team/player/author/US/video pages with sportskeeda_sitemap_items. It doesn't state explicit when-not-to-use conditions, but the sequencing context is unambiguous.

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