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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds genuinely useful context the annotations do not: the approximate dataset size (~1,121) and that results are paginated one page at a time, which helps the agent plan iteration.

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 compact sentence with the resource front-loaded and no filler. It is efficient and appropriately sized for a simple paginated-list tool.

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?

An output schema exists, so return values need not be explained, and annotations cover the safety profile. For a two-parameter paginated index, the description conveys resource, scale, and pagination adequately; only the relationship to sibling detail tools is left unstated.

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 100%, with both page and page_size fully documented including defaults and ranges, so the schema carries the parameter semantics. The description's 'one page at a time' reinforces pagination but adds no syntax or format detail beyond the schema, making the baseline 3 appropriate.

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 ('Culver's restaurant-URL index') and quantifies its scope (~1,121 restaurants), so an agent knows this returns a paginated catalog of restaurant URLs. It does not, however, differentiate from siblings like culvers_store or culvers_menu, so the boundary is only implicit.

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?

'one page at a time' hints at pagination mechanics but offers no when-to-use guidance, no conditions selecting it over culvers_store, and no mention of what the index is useful for (e.g., enumerating URLs for further detail calls). The agent is left to infer the usage context.

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