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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety and open-world behavior are covered. The description adds freshness ('Current') and public-section scoping, but says nothing about result volume or ordering beyond what the output schema carries.

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 sentence with no filler, and the resource is named before the constraint on its argument.

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, annotations, and a single fully described parameter, the description covers everything an agent needs to invoke it. Minor gaps (how many headlines are returned, whether results span multiple days) are left to the output schema.

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 100% and the section enum values are fully listed in the schema, so the baseline is 3. The description adds a non-obvious constraint that the value must be drawn from cbssports_sections, which is not expressed anywhere in the schema itself.

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 and resource ('Current CBS Sports headlines') plus a scope qualifier ('for one public section'), which is enough for an agent to distinguish it from cbssports_news (aggregate feed) and cbssports_article (single story).

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 sentence 'section must come from cbssports_sections' explicitly routes the agent to the prerequisite tool before calling this one. It does not, however, state when to prefer this over cbssports_news or cbssports_article.

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