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

Annotations declare this is a non-read-only, open-world, non-idempotent but non-destructive operation, so safety is covered; the description contributes beyond that by disclosing the $299/day price, the human-executed nature of the service, and the concrete outputs (footage, Mandarin interviews, catalogs, factory pricing). It does not clarify lead time, whether submission is a firm booking or a request awaiting confirmation, or what the client receives afterward, which leaves a meaningful gap for a service-ordering tool.

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?

A single front-loaded sentence that leads with the action and price before enumerating deliverables, with no filler. It is dense and slightly overpacked with service details, but every clause carries information an agent would otherwise lack.

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 six-parameter request form with no output schema, the description supplies the essentials: what the service is, what it costs, and what the requester gets. The missing piece is what happens after submission (confirmation, scheduling, cost calculation by days_needed), which matters for a booking-style tool but is a modest gap given full schema coverage.

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 all six fields, including objectives and days_needed, are already documented in the schema, and the description adds no field-level detail such as format hints for objectives or how days map to pricing. Baseline 3 is appropriate when the schema does the heavy lifting.

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 concrete verb and resource ('Book or request an on-the-ground Remote Exhibition Viewer') plus the actual deliverables: attending the show, filming booth demos, interviewing engineers in Mandarin, collecting pricing/catalogs. The purpose is unmistakable, but it never contrasts itself with neighbors like search_china_exhibitions or book_consultation_or_quote, so an agent must infer the boundary itself.

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?

Usage context is implied by the phrase 'on the client's behalf' and the China trade-show setting, which tells an agent this is for physical presence rather than desk research. There is no explicit when-to-use/when-not guidance, no prerequisites, and no named alternative for someone who only needs exhibitor listings.

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