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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and closed-world, so the safety profile is covered. The description adds useful payload context ('every figure on record', editorial content, links) that helps an agent judge response weight, but says nothing about failure behavior or whether the record is ever partial.

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?

One compact sentence, front-loaded with the identifier forms and followed by the returned contents; nothing is padded. The dense field enumeration borders on a list dump but every item conveys what the caller receives.

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 no output schema, the description usefully enumerates the returned components (figures, ratings, write-up, deck plan links, cover photo, page link), which is what an agent most needs here. Given a single required parameter and fully covered annotations, the remaining gap is only error/not-found behavior.

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 single 'ship' parameter is already documented as 'Slug (from list_cruise_ships) or UUID'. The description restates the same slug-or-UUID duality without adding format, casing, or resolution rules, so it meets but does not exceed the baseline.

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 names the resource ('One ship') and the identifier forms ('by slug or UUID'), then enumerates the payload: figures, editorial ratings, write-up, deck plan links, cover photo, page link. That is enough to distinguish it from get_ship_metrics or get_ship_deck_plans (this returns links to deck plans, not the plans themselves), though it never explicitly contrasts with those siblings.

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: an agent can infer this is the detail lookup that follows list_cruise_ships or top_cruise_ships. There is no explicit when-to-use/when-not guidance, no mention of the alternative granular tools, and no note about what happens if the slug is unknown.

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