Find Cheap Destinations

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

Annotations already declare readOnlyHint=true, destructiveHint=false, idempotentHint=true, and openWorldHint=true. The description adds no additional behavioral information beyond what is already conveyed by the annotations.

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?

The description is a single sentence with 8 words, which is concise but may be too brief. It lacks structure (e.g., bullet points) but is not verbose.

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?

Despite a rich output schema and annotations, the description omits important context such as the return format (list of destination airports), the meaning of 'cheapest' (based on fare?), and the relevance of date parameters. Only the origin parameter is mentioned.

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% with all parameters documented. The description only mentions 'origin airport', but does not add meaning beyond the schema for other parameters like departure_date, return_date, etc.

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 clearly states 'Find cheapest flight destinations from an origin airport', specifying the verb 'Find' and the resource 'cheapest flight destinations'. However, it does not distinguish itself from sibling 'sabre.flights.search', which might also be used for finding flights.

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?

No guidance is provided on when to use this tool versus alternatives like 'sabre.flights.search'. The description lacks context about scenarios (e.g., exploring low-cost destinations vs. booking specific flights).

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