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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety/open-world profile is covered. The description adds the returned field set, which is useful, but discloses nothing about auth needs, rate limits, or behavior when only url vs slug is supplied — so a mid score is appropriate.

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 sentence, front-loaded with the resource identity and the returned fields. No filler or restated boilerplate.

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-value explanation is not required, and the schema fully documents both inputs. The description is complete enough for an agent to call it, though it could note the url/slug alternative or that recent articles are included alongside the profile.

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 both parameters (url, slug) are fully documented in the schema, including their alternative relationship. The description adds no parameter meaning beyond that, 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?

Names a specific resource ('One Daily Record author's public profile') and enumerates what it contains (name, job title, bio, email, X/Twitter handle, recent articles). This clearly distinguishes it from siblings like dailyrecord_article, dailyrecord_headlines, dailyrecord_news, and dailyrecord_sections.

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?

Usage is only implied — an agent can infer this fetches an author profile rather than an article, but the description never states when to use it versus alternatives (e.g. fetching an author's articles via dailyrecord_article) or what conditions select it. Adequate but with a clear gap.

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