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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety is covered. The description adds that only 'public' articles are returned and that body paragraphs are included, which is useful, but it says nothing about auth, paywalls, or failure modes for private/missing articles.

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 efficient sentence with no filler, front-loaded with the resource and its payload. It is terse to the point of omitting param guidance, but nothing is wasted.

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?

An output schema exists, so return details are delegated correctly, and the description notes the payload (metadata + body paragraphs). For a one-param read tool with annotations, this is nearly complete, with only the URL parameter format left unaddressed.

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 single 'url' parameter has 0% schema description coverage, so the description must carry the burden, yet it never states that the input is a URL pointing at a NY Post article or what a valid URL looks like. It only implicitly signals article input.

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?

Names a specific resource (a single NY Post article) and states what it returns (metadata plus body paragraphs), which distinguishes it from siblings like nypost_news/nypost_headlines that cover collections. It is phrased as a noun, not a verb, but the retrieval intent is unambiguous.

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?

No guidance on when to use this vs. alternatives such as nypost_news, nypost_headlines, or nypost_author. The agent must infer that this is the single-article fetch tool.

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