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

Annotations already declare read-only, idempotent, open-world, and non-destructive behavior, so the safety profile is covered. The description adds useful behavioral context by enumerating what the tool returns: conditions, live nightly prices with photos, rental and hotel searches, flights, and extras like lift tickets and insurance.

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, well-structured sentence with a colon-separated list that is front-loaded with the core purpose: 'Everything to book one trip.' It is dense but every listed component earns its place by clarifying the tool's breadth.

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 an eight-parameter aggregator with no output schema, the description sufficiently communicates the breadth of returned information and the annotations cover safety. It could go further by explicitly relating itself to sibling tools, but the overall context is strong.

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%, so the input schema already documents all eight parameters thoroughly. The description reinforces some semantics, such as flights from the traveler's airport and lodging budget, but adds no new syntax or constraints beyond what the schema provides.

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 a specific verb and resource: it plans a comprehensive ski or beach resort trip, enumerating conditions, lodging, flights, and extras. It functions as an umbrella aggregator, so an agent can infer its scope even without explicit sibling naming, though it does not call out alternatives by name.

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 description gives clear context for when to use it: 'Everything to book one trip' signals a comprehensive trip-planning scenario. It does not explicitly list when not to use it or name sibling tools, but the context is strong enough for an agent to distinguish it from single-purpose searches.

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