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

Annotations already declare readOnlyHint and openWorldHint, so the safety profile is covered. The description adds the 'public section' scoping (only public sections supported) and the ew_sections dependency, but says nothing about pagination, result volume, or freshness beyond 'Current'.

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 with the resource stated first and the constraint second; every clause earns its place with zero filler.

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?

With an output schema to describe returns and annotations to cover safety, the description only needs to convey purpose and the section constraint, both of which are present. Minor gaps around result count and pagination remain.

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 the schema itself enumerates the documented section slugs. The description's pointer to ew_sections is useful routing but adds no format or syntax detail beyond the schema, so the baseline of 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?

States a specific resource and scope: 'Current Entertainment Weekly headlines for one public section.' An agent can distinguish this from ew_article and ew_news by the headlines-vs-article/news distinction, though it does not explicitly name the sibling it replaces.

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?

Adds a clear prerequisite: 'section must come from ew_sections,' routing the agent to the companion tool for valid inputs. It gives context but no explicit when-not-to-use or direct comparison against ew_news.

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