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-source nature are covered. The description adds only that results are 'current' and scoped to 'one section page'; it does not mention pagination, result volume, or rate limits.

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 a single front-loaded sentence with a semicolon-separated prerequisite. Every clause earns its place and there is no redundant filler.

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?

Given a simple read-only tool with an output schema and annotations covering safety, the description supplies the essential purpose and the source of the required slug. It is complete enough to call correctly, though it omits any pagination or result-limit context.

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% for the single required section parameter, so the description must compensate. It does so by stating the value is a slug returned by ghanaweb_sections, which is essential for correct invocation, though it could further clarify expected slug format.

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 gives a specific verb (Fetch), resource (GhanaWeb article cards), and scope (from one section page), so an agent can tell it apart from a section-listing tool like ghanaweb_sections. It does not explicitly distinguish itself from the similarly named ghanaweb_news or ghanaweb_article siblings, which slightly limits clarity.

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 states a prerequisite: the section parameter must be a slug returned by ghanaweb_sections. This implies usage but does not state when to choose this tool over ghanaweb_news or ghanaweb_article, nor does it list exclusions.

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