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

No annotations are provided, and the description gives minimal behavioral context. It mentions eligibility criteria, sorting, and a table of offers, but does not disclose read-only nature, error behavior, pagination, or any side effects. The description carries the full burden but does not fulfill it.

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 a single concise sentence, but it lacks front-loading of the main purpose and is under-specified. While there is no wasted verbiage, the information provided is insufficient for selecting or invoking the tool correctly.

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 one parameter, no output schema, and no annotations, the description should explain the tool's behavior and return value comprehensively. It does not even mention that the tool retrieves a category by slug, nor does it describe the output structure beyond vague content mentions. Incomplete for an agent to use 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?

The schema defines a single required parameter 'slug' with minLength 1, but the description does not mention 'slug' at all. Schema description coverage is 0%, and the description fails to compensate by explaining what the parameter represents or how to use it.

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 'Подборка займов' translates to 'Loan selection', which describes the content of the result rather than the tool's action. It does not explicitly state that this tool retrieves a category by slug, and it fails to distinguish itself from the sibling tool list_categories. The verb is missing, making the purpose vague.

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 alternatives like list_categories or get_market_rules. No context or exclusions are provided, so the agent cannot infer the appropriate use case.

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