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

readOnlyHint=true already covers the safety profile, but the description adds real behavioral context: results are paginated, they span all channels, and they include guest, dates, channel, price and payment status. It stops short of stating sort order, pagination defaults, or whether a date range is expected.

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 dense sentences front-loaded with the core action, return fields, and filter families, ending with the API route for mapping. No filler, though the long comma-separated filter list is slightly scannability-poor.

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 a 17-parameter listing tool with no output schema, the description usefully names the returned fields and flags pagination, which compensates for the absent output schema. It is missing only finer operational detail (default page size, ordering, whether ranges are required).

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% across all 17 parameters, so the schema already documents each filter's syntax and semantics in detail. The description only summarizes filter categories at a higher level, adding little beyond the schema, which matches the baseline of 3.

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?

Specific verb (List) + resource (reservations) with explicit scope: 'across all channels (Airbnb, Booking.com, direct, ...)', plus the returned fields and the underlying endpoint. This clearly distinguishes it from the singular smoobu_get_reservation and from other list_* siblings.

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 implies usage via its filter enumeration (stay range, arrival, departure, creation/modification date, property), so an agent can infer this is the browse/search tool. However, it never states when to prefer this over smoobu_get_reservation or check_availability, and gives no exclusions or prerequisites.

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