ozon_order_fbs_country_list

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

With no annotations, the description carries the full burden of behavioral disclosure, and it fails to state whether the tool is read-only, what it returns, or what side effects it may have. It does not even explicitly say that it returns a list of countries.

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?

The description is extremely short and structurally simple, but it is under-specified rather than appropriately concise. One short phrase with a parenthetical translation does not earn its place as a useful explanation.

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?

Although the tool has only one parameter and no output schema, the description is still incomplete: it lacks an explicit action, any indication of return values, and enough context to select it confidently among the many FBS-related sibling tools. An agent could guess the input, but not the tool's actual purpose or behavior.

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 0%, so the description needs to compensate. It weakly links the single required parameter to an 'FBS posting', but it never mentions 'posting_number' by name, format, or how it should be obtained, leaving the parameter semantics almost entirely to the schema field name.

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 'Countries for an FBS posting' is essentially a restatement of the tool name 'ozon_order_fbs_country_list' and lacks an explicit verb such as 'retrieves' or 'lists.' It does not distinguish this tool from the closely related sibling 'ozon_order_fbs_country_set', so an agent cannot tell whether this reads or manipulates country data.

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?

No guidance is provided about when to use this tool versus alternatives like 'ozon_order_fbs_country_set' or 'ozon_order_fbs_restrictions.' The description gives no context about prerequisites, intended workflow, or exclusions.

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