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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=true, so the safety profile is covered and the description does not contradict it. But the description adds nothing beyond that – no hint that the call returns a statistics window or what data is fetched, which matters because the date parameters imply a stats report rather than a plain catalog lookup.

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?

It is a single short sentence, but brevity here is under-specification rather than economy: the one sentence carries no information the agent could not already read from the tool name. There is no front-loaded statement of what the tool does.

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?

There is no output schema, and the description says nothing about what the detail payload contains or how the date range affects results. For a 4-parameter data lookup with several near-identical Ozon siblings, this leaves the agent without enough to select and invoke it confidently.

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 productId, startDate, endDate and includeFbs are all documented in the schema itself. The description contributes no additional meaning about these parameters, so the baseline of 3 applies.

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 is a restatement of the title and tool name ('Ozon Intelligence MP: ozon/product Detail API') with no verb or explanation of what the endpoint actually returns. It gives no way to distinguish it from the many Ozon siblings such as nexscope_data_mp_ozon_product_search, nexscope_ozon_product_detail, or nexscope_data_sr_ozon_product_detail_search.

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 when-to-use guidance, no prerequisites, and no mention of any alternative. The agent has to guess whether this competes with nexscope_data_mp_ozon_product_search or nexscope_ozon_product_detail.

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