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

Annotations already declare readOnly, idempotent, non-destructive, closed-world behavior, so the safety profile is covered. The description adds that only published docs are returned and that the result is IDs rather than full text – a useful output-shape hint. It does not cover pagination, rate limits, or what happens when no destination matches.

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 short sentences, front-loaded with the core action and followed by the essential follow-up step. Every clause carries information; no filler.

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?

The tool is simple (2 params, no output schema, no nesting) and annotations cover the safety profile, so the bar is modest. The description gives the return type (IDs) and a next step, but leaves parameter semantics and no-result behavior undocumented.

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 coverage is 0%, so both parameters lack any documentation in the schema. The description mentions the destination implicitly but provides no format/expectation details (e.g. city vs country name), and says nothing about the 'limit' parameter. With a low-coverage schema the description should compensate but does not.

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 verb (find) and resource (published guide documents) scoped to a 'known destination', which distinguishes it from the sibling search tool. No explicit sibling differentiation by name, but the 'published guide documents' framing separates it from compare_hotels/find_hotels clearly enough.

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 usage context ('for a known destination') and hints that returned IDs must be fetched for full text, giving an agent a workflow cue. However, it does not name when to use this versus the 'search' sibling, nor state any exclusions or prerequisites.

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