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

Annotations already establish the safety profile (readOnly, idempotent, non-destructive, closed-world), so the description's useful addition is the return content: URL, last-checked date, section headings, and FAQ/card counts. With no output schema, that disclosure is genuinely valuable, though it says nothing about ordering, pagination, or what an empty result looks like.

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 dense sentence that front-loads the scope ('the pages for one city') and then the returned fields. Nothing is wasted, though the parenthetical about 'site' interrupts the resource statement slightly.

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?

For a one-parameter, read-only list tool with no output schema, the description covers both the special parameter value and the shape of the returned records. Only ordering/pagination behavior is left unstated, which is a minor gap here.

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 reported as 0%, but the schema's string branch does document slugs and the enum-like const 'site'. The description meaningfully extends this by explaining the purpose of the special 'site' value (site-wide pages like regional weekend getaways), which the schema only lists without rationale.

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?

The description states a concrete resource ('the pages for one city') and distinguishes it implicitly from list_cities (cities) and get_page (a single page) by scoping to all pages within one city. It never names a sibling tool explicitly, so an agent must still infer routing, but the resource and granularity are 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?

Usage is implied rather than stated: the agent learns to pass a city slug, or the literal 'site' for site-wide pages such as regional weekend getaways. There is no explicit 'use this instead of get_page/search when...' guidance or any exclusion, so routing remains partly inferential.

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