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

Annotations already declare readOnlyHint=true and openWorldHint=false, so safety and data boundary are covered. The description adds that results include links to service pages and spans multiple service categories, but it does not mention pagination, result count, or response format. This is useful context beyond annotations but not rich behavioral disclosure.

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 definition is a single front-loaded sentence that leads with the resource and scope. The long list of service examples is useful but could be trimmed, and trailing 'и т.д.' is slightly loose.

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 two optional, fully described parameters and no output schema, the description is nearly sufficient: it names the resource, coverage by city, categories, and page links. It could more explicitly state that the tool returns a list and how results are ordered or limited, but the core call context is present.

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 coverage is 100%, so both q and city are already documented in the schema. The description only echoes that services are organized by city; it adds no extra syntax, matching rules, or query behavior beyond what the schema provides. Baseline 3 is appropriate when the schema does the heavy lifting.

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 a specific resource—agency services by city—and lists representative service categories, so the agent can distinguish it from siblings such as list_cities and search_places. It implies listing but does not use an explicit verb like 'list' or 'returns'.

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?

It gives no explicit when-to-use guidance, prerequisites, or alternatives. An agent can infer it is for browsing services by city, but nothing tells it when to prefer this tool over list_cities, list_place_selections, or search_places.

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