wb_brands_list

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

No annotations exist, so the description carries the full burden of behavioral disclosure. It only states the resource and the filter effect; it omits output shape, pagination, optionality of subject_id, and any read-only or side-effect hints.

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 short sentence that front-loads the resource and the key filter. It is economical with no filler, though very terse.

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 simple one-optional-parameter list endpoint, the description is minimally viable: it says what is being listed and how filtering works. However, with no output schema and no annotations, it leaves gaps around response format, pagination, and the exact meaning of the category filter.

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 input schema already describes subject_id as a category filter with 100% coverage. The description mostly restates this and adds only a Russian parenthetical, so it provides minimal additional meaning beyond the schema.

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 identifies the resource as seller brands and mentions the optional category filter, which is specific enough to understand the tool's purpose. It doesn't explicitly differentiate it from brand-related sibling tools, but the resource + filter combination is reasonably clear.

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 about when to use this tool versus alternatives such as wb_subjects_search or wb_analytics_brand_share_brands. No conditions, prerequisites, or exclusions are provided.

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