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

Annotations already declare readOnlyHint=true and openWorldHint=true, covering the safety profile. The description adds only that the payload is the 'full public' article (versus a headline/list view), with no detail on auth, rate limits, or response behavior, so it adds modest value beyond the annotations.

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 with no filler; the resource and its key dependency come first. It is slightly telegraphic but earns its length.

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 one-parameter, read-only detail tool with a full output schema, the definition covers what the agent needs: what it returns (full article), how to obtain the key (from livescore_news), and its safety profile via annotations.

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 description coverage is 100% and the schema itself gives a precise format and a worked example for 'path'. The description reinforces that the path comes from livescore_news but adds no format or syntax detail beyond what the schema already provides, so the baseline 3 applies.

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 states a specific verb+resource: it fetches the full public news article data, keyed by an article path. It names the source of that path (livescore_news), which helps separate it from the list/feed siblings, though it does not explicitly contrast with livescore_news_feed or livescore_news_categories.

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?

It implies the workflow prerequisite by saying the path is 'discovered from livescore_news', which tells the agent to call that tool first. However, there is no explicit when-to-use/when-not or named alternative, so the guidance is only implied rather than stated.

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