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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds that input is a free-text term and that both destinations and properties are matched, which is useful, but says nothing about result limits, ranking, or how ambiguous terms are handled.

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 sentence, front-loaded with the verb and resource, with the parenthetical scope immediately after. No filler, though the parenthetical list is slightly dense.

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 values need not be described. For a read-only typeahead the description is broadly adequate, but with zero parameter documentation for locale/currency and no guidance on chaining into a full search, it leaves gaps an agent must guess at.

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 0%, so the description carries the full burden. It only illuminates the 'term' parameter ('free-text term'); locale and currency are left unexplained in both schema and description, so two of three parameters remain opaque.

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 verb (Search) and resource (Expedia destinations and properties), and clarifies the typeahead scope with concrete entity types (city, airport, neighborhood, hotel). It reads clearly enough to distinguish from expedia_properties_search, but never names that sibling explicitly.

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?

The typeahead framing implies this is for resolving a free-text term into a location before a property/activities search, but there is no explicit when-to-use or when-not, and no mention of the sibling expedia_properties_search or expedia_properties_filters that an agent would need to route between.

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