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

With no annotations provided, the description carries the transparency burden. It usefully discloses the output fields and the pricing model ('1 point per returned record'), which is real value an agent can't get from structured fields. However, it says nothing about pagination limits (despite start_page/max_items existing), rate limits, or authentication, so the behavioral picture is incomplete.

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 compact sentences, the purpose stated first and the cost note second. Every clause earns its place and no filler is present.

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 no output schema, the description compensates by listing the returned fields, and it adds the per-record cost. Pagination behavior tied to max_items/start_page is left implicit, but otherwise an agent has what it needs to invoke the tool correctly.

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 all three parameters (product, max_items, start_page) are already documented in the schema; baseline 3 applies. The phrase 'by contentId or URL' mildly reinforces the product parameter but adds no syntax or format detail beyond what the schema states.

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?

States a specific verb+resource ('Customer reviews for a Trendyol product') and enumerates the returned fields (rating, text, author, date, likes, seller, photos), which clearly separates it from run_trendyol_products and run_trendyol_sellers_products. It does not explicitly name a sibling, so it falls just short of a 5.

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 description says the tool works 'by contentId or URL' but gives no when-to-use condition, no prerequisites, and no guidance on choosing it over the many other review tools in the sibling list. Usage must be inferred from the name alone.

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