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

Annotations only declare readOnlyHint=false, so the description must carry the behavioral weight. It adds one genuinely important fact — "Попытка одна" (a single attempt) — which signals irreversibility, but it never says what happens on a wrong answer (lockout, kick, account flag) or what a successful submission returns.

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?

Two short sentences, front-loaded with the action and source, closed with the critical one-attempt constraint. Nothing is wasted and nothing is buried.

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?

Given a single-parameter mutation tool with no output schema, the definition covers trigger and attempt limit, which is most of what an agent needs. The missing piece is consequence-of-failure behavior, which matters a great deal for a one-shot submission tool.

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 100% and the single parameter is already fully documented as an integer answer. The description reinforces that this is a numeric answer to the check-task but adds no format, range, or validation detail beyond the schema, so baseline 3 applies.

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 names a specific action (answering a check-task) and pinpoints its source: issued at login or in-game via the event feed with type "проверка". This differentiates it reasonably well from the other answer-style siblings (game_dialog_answer, game_duel_answer), though it never names them explicitly.

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 trigger condition is implied clearly enough — use it when a verification task appears at login or in the event feed. However, there is no explicit comparison to sibling tools and no guidance on what to do when no such task is pending, so usage is inferred rather than stated.

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