s3_update_traffic_info

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

Annotations already indicate it is not read-only (readOnlyHint: false) and not destructive (destructiveHint: false). The description adds 'Доступно только администраторам' (admin-only), which is a useful access constraint. However, it does not disclose what happens during the update—whether it overwrites existing data, triggers background processes, or has side effects. Given openWorldHint is true, the description should warn about potential external effects, but it remains silent.

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 sentence, which is concise, but it includes redundant information—the API endpoint 's3/update_traffic_info' in parentheses adds nothing and is essentially a repetition of the tool name. The core constraint (admin-only) is not front-loaded; it appears at the end. Overall, it is under-specified rather than efficiently structured, so a score of 3 reflects that it is not poorly written but lacks substance.

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 mutation tool with a confirm guard, an optional account_id, and no output schema, the description is incomplete. It does not explain when account_id is required (the schema says 'if required' but gives no criteria), what the return value or success indication is, or any side effects. An agent cannot fully anticipate the outcome of calling this tool based on the description alone.

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 covers 100% of parameters with descriptions, so the baseline is 3. The description adds no extra meaning beyond the schema: 'confirm' is described as needing true to execute, and 'account_id' as the S3 account ID with a pointer to s3_get_users. The description itself does not explain these parameters or provide any additional context, so it provides no incremental value.

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 states a verb ('Обновить' / update) and a resource ('информацию о трафике S3-аккаунта' / traffic information of S3-account), which clearly indicates what it does. It is distinguishable from sibling tools since no other tool has 'update_traffic_info' in its name. However, the description is vague about what 'update traffic information' actually entails—whether it recalculates, refreshes, or changes settings—and it merely repeats the API endpoint in parentheses without adding semantic depth.

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 gives no guidance on when to use this tool versus alternatives. It only notes that it is admin-only, which is a constraint but not a usage context. There is no mention of prerequisites, typical scenarios, or exclusions, leaving the agent to infer that it should be used whenever traffic info needs updating, without clarification of when that might be appropriate.

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