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 fully covered. The description adds genuine business context beyond that — prices are quoted in ILS and availability is included — but says nothing about pagination behavior, result ordering, or catalog size limits.

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 short sentence with no filler, and the most useful detail (currency) is front-loaded. It is efficient rather than padded, though its brevity comes at the cost of specifying the action.

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 4-parameter list tool with no output schema, the description should at minimum state that it returns a paginated collection and what a product record contains. The ILS price and availability note partially covers the return shape, but paging and record structure remain 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 description coverage is 100%, so page, per_page, search and fields are each documented in the schema itself. The description adds no parameter-level meaning beyond hinting that availability is filterable/relevant; baseline 3 applies where the schema does the heavy lifting.

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 the resource and its payload ("Ready-made 3D-printed products with price (ILS) and availability"), which tells an agent what data it yields, but it never states the action (browse/list all) and does not distinguish it from get_product, list_services, or search_site. The listing behavior is only inferable from the tool name, not the description.

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?

There is no guidance on when to use this tool versus get_product (single-item lookup) or search_site, nor any note that search/page/per_page are the filtering and paging controls. The agent must infer usage entirely from the name and schema.

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