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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The word 'public' adds useful context that no authentication is required, but nothing is said about rate limits, content truncation, or paywalled 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 tight sentence that front-loads the scope ('one public CBS News article') before the payload. No wasted words, though it borders on under-specification rather than conciseness.

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 values need not be explained. However, for a tool in a large family of near-identical news scrapers, the absence of any routing guidance leaves the definition only minimally viable.

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% and the single url parameter has no description, so the description carries the burden. 'Article's metadata and body paragraphs' implies the url points at an article page, which is a modest hint, but no format or example is given.

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 resource — a single CBS News article — and specifies what is returned (metadata plus body paragraphs). This distinguishes it from the sibling headlines/news/sections tools, though it never names the retrieval verb or the url parameter explicitly.

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 indication of when to use this versus cbsnews_headlines (discovery) or cbsnews_news, nor any prerequisite about needing an article URL first. The agent must infer that this is a follow-up call after finding an article elsewhere.

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