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

The annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds that only a published article is returned, that the result is in full, and that it includes a page link, but it does not discuss missing/unpublished ids or permission behavior.

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 definition is one compact sentence with no wasted wording. The key scope, id source, and return shape are front-loaded and easy for an agent to parse.

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 read-only get-by-id tool with rich annotations and no output schema, the description provides enough context: what is returned, the required id source, and the inclusion of a page link. Only minor edge-case behavior, such as handling nonexistent or unpublished ids, is omitted.

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 0%, so the description must carry parameter meaning. It explains that the single article_id is the id used to retrieve one article and that list_articles provides those ids, adding useful sourcing information beyond the schema's bare string/uuid definition.

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 resource and scope: one published article returned in full by id. It also distinguishes the tool from list_articles by naming list_articles as the source of ids and clarifying that this tool returns the full article plus its page link.

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 gives clear implied usage: call this when you have an article id and need the full article, and use list_articles to obtain those ids. It does not explicitly exclude alternatives such as search_news or list_news, but for a simple get-by-id tool the guidance is adequate.

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