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 description adds that the author's profile is 'public' and that 'recent articles' are returned, which is useful content-scope context, but it says nothing about auth, rate limits, or how many recent articles come back.

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 the verb and resource first, followed by the invocation hint. No wasted words.

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, and readOnly/openWorld annotations cover the safety profile. The description adequately covers inputs, though it could note that at least one of the two optional parameters is effectively required.

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% — the two parameters (url, slug) are bare strings with no descriptions. The description compensates by naming both ('author slug or canonical profile URL') and implying they are alternatives, which is meaningfully more than the schema provides.

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 verb ('Get'), resource ('Denver Post author's public profile'), and includes recent articles, which cleanly separates it from the denverpost_article/news/headlines/sections siblings. It does not explicitly name those siblings, but the resource scope makes the distinction obvious.

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 sentence 'provide an author slug or canonical profile URL' tells the agent how to invoke the tool, but there is no explicit when-to-use/when-not guidance or comparison to alternatives. Usage is only implied from the resource itself.

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