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

Goes well beyond readOnlyHint/openWorldHint: it discloses that nothing is sent (request_sent: false), that a named human advisor quotes in writing within 24 hours, that booking only occurs after traveler approval, and that no fee is charged with payment going directly to the hotel. This is exactly the side-effect and timing context an agent needs before calling.

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?

Front-loads the action and workflow reference, then layers on the advisor/approval and fee details in compact sentences. The advisor's name is mildly decorative but the rest earns its place.

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?

Behavioral context is thorough for a read-only, non-destructive tool with no output schema, but the nested and completely undocumented parameters leave a real hole in what an agent needs to call it correctly.

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% and traveler_info is a nested object with six sub-fields, none of which the description explains. The text never mentions trip_id, num_nights, or any traveler_info field, so an agent gets no guidance on what to supply or how the fields are used.

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 outcome ('get the steps to book a hotel, cruise or experience') and ties it to a sibling ('found with search_trips'). It is clear this tool produces guidance rather than a reservation, which distinguishes it from create_booking_session, though the mismatch with the imperative name 'create_booking' leaves some initial ambiguity that the body has to repair.

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?

Implies the workflow ('found with search_trips' → get steps) but never says explicitly when to pick this over create_booking_session or complete_booking_session, nor what preconditions exist. Usage is inferable rather than stated.

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