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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds that links are 'published' and that it performs no link visiting or booking, which partially overlaps openWorldHint=false, so the added value is modest.

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 tight sentences, both front-loaded with the return content first and the non-behavior second. Nothing is wasted, though it is extremely terse given the undocumented parameter.

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 single-parameter read tool with no output schema, the description conveys the return content (affiliate and official URLs) but omits the parameter's meaning and leaves the vague 'with disclosure' unexplained. It is minimally adequate rather than complete.

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?

There is one required parameter, hotel_id, with 0% schema description coverage, and the description never mentions it or its expected form. It fails to compensate for the schema gap, so the agent learns nothing about the identifier beyond the property name.

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 gives a specific verb and resource — 'Return exact published affiliate and official URLs' — and the negative clause ('Does not ... book rooms') clarifies its scope. It doesn't name a sibling, but the purpose is unambiguous and distinguishable from the generically named fetch/search tools.

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?

It implicitly frames usage by stating what it does NOT do ('Does not visit links or book rooms'), which hints the agent should use a different tool to follow or open URLs. However, it never states when to call this tool or names an alternative such as fetch, leaving the routing to inference.

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