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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety and external-reach behavior are covered. The description contributes only the structural hint that the payload is organized as menus -> sections -> items; with an output schema present, it is not obligated to explain return values, so this is adequate but thin.

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 fragments, spec-first, with the resource definition front-loaded and the requirement trailing. Nothing is bloated, though the second sentence largely restates the schema's required array.

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 and read-only/open-world annotations present, the return contract and safety profile are already covered, so the description does not need to explain them. It is complete enough to invoke correctly but omits any routing context relative to the three sibling OpenTable tools.

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?

With a single parameter at 0% schema description coverage, the description must carry the load. It identifies the required input and its meaning but adds no format or provenance detail, and it renders the field as 'restaurantId' while the schema uses 'restaurant_id' – a cosmetic mismatch an agent must reconcile.

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 specific resource and its sub-parts (menus, sections, items) scoped to a single OpenTable restaurant, so an agent knows exactly what content comes back. It stops short of distinguishing itself from siblings like opentable_restaurant or opentable_restaurant_reviews, so it is clear but not fully differentiated.

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 'Requires restaurantId', which is already implied by the required field in the schema. There is no statement of when to reach for this tool versus opentable_restaurant (base details) or opentable_restaurant_reviews, leaving sibling selection to inference.

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