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

No annotations are provided, so the description carries the full burden. The word '查詢' implies a read-only lookup and the listed facets imply the answer content, but there is no disclosure of data freshness, update cadence, or whether the response is static reference text versus live data — relevant for ticket-sale timing.

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 puts the resource and the covered facets first with no filler. It could be marginally tighter, but nothing is wasted.

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?

With no output schema and no parameters, the description is the only source of return-value information, and it does enumerate the four content categories an agent can expect. Complete enough for a simple static-lookup tool, with only data-freshness caveats missing.

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?

The tool takes zero parameters, so there is nothing for the description to disambiguate; the baseline of 4 applies.

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 states a specific resource (Ghibli Park tickets) and enumerates the exact facets covered: sale start times, ticketing platforms, ticket types/prices, and real-name registration rules. It is clearly distinguishable from travel siblings like trip__entry_requirements or travel__ticket_booking_guide, though it never explicitly names an alternative.

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 bracketed prefix '［出國與國旅實用查詢］' functions as a category label, not usage guidance. There is no statement of when to pick this tool over the broader travel__ticket_booking_guide or trip__destination_info siblings, and no prerequisites or exclusions are given.

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