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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and a closed (openWorldHint=false) world, so the safety profile is covered. The description adds real behavioral context beyond that: the coverage domain is limited to places that actually have hotel lists, and each entry exposes a page URL plus filterable 'needs' facets. Only the exact response shape is left to the output schema.

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?

Two sentences, front-loaded with the resource scope and the routing guidance. Slightly dense in the first sentence but every clause (coverage, URL, filterable needs, optional kind) carries information an agent needs.

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 format need not be spelled out, and the description still supplies the domain constraint, the discovery intent, and the downstream tools. For a zero-required-parameter lookup tool this is complete enough to call correctly on the first attempt.

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 'kind' parameter already enumerates the accepted values (airport, venue, convention, attraction, beach, campus, hospital, transit, employer, area). The description only restates that filtering by kind is optional, adding no semantics beyond the schema, 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?

States a specific resource ('landmarks, venues, airports, attractions and neighborhoods Journeyed has hotel lists for') with an explicit geographic scope (Los Angeles area) and what each entry carries. It is clearly distinguishable from siblings like search_hotels and get_hotel, which return hotel data rather than place coverage.

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?

Gives two concrete use cases ('check that a place is covered' and 'find the exact name to pass to hotels_near or best_hotels'), naming the alternative tools it feeds into. The optional kind filter is also flagged as optional, so the agent knows the call works with no arguments.

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