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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety and open-world behavior are covered. The description adds only that results are paginated ('A page of...') and that restaurantId is required, which is modest added context. It says nothing about review ordering, page size defaults, or rate limiting.

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 with no waste, and the key resource is front-loaded. It is efficient, though terse enough that the brevity edges toward under-specification rather than elegant conciseness.

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 an output schema present, return values need not be described, which the description correctly avoids. But for a paginated list tool it never explains the page/size parameters or the expected restaurantId format, leaving gaps that the structured fields do not fill (0% 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 0%, so the description carries the burden of explaining all three parameters. It only flags restaurantId as required and entirely omits 'page' and 'size', leaving pagination semantics undocumented in both the schema and the description.

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 names a concrete resource (an OpenTable restaurant's diner reviews) and scopes it as paginated output ('A page of...'), which is clear enough to act on. It does not, however, differentiate itself from siblings like opentable_restaurant or opentable_restaurant_menus, so an agent must infer the distinction.

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 only guidance is the prerequisite note 'Requires restaurantId.' There is no statement of when to use this versus opentable_restaurant or the other OpenTable siblings, and no exclusions or conditions. The agent is left to infer the use case entirely.

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