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

Annotations already declare readOnlyHint=true, so the read-only safety profile is covered. However, the word "новые" implies a stateful cursor — reading may consume or advance past the events — and the description never confirms this, nor does it mention blocking behavior, ordering, or what happens when no events exist. For a polling tool, delta/consumption semantics are the single most important behavior to disclose.

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?

A single short sentence with the verb and resource front-loaded and no filler. It is efficient, though the parenthetical event list is the only structural element and everything else about the tool is absent rather than compressed.

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?

There is no output schema, no parameter documentation, and no annotations beyond readOnlyHint, so the description carries most of the burden — yet it omits return shape, event ordering, cursor/consumption behavior, and the meaning of `limit`. For a tool whose whole purpose is consuming an event stream, this leaves critical call-time decisions unspecified.

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 0% for the single `limit` parameter (integer 1–200), and the description does not mention it at all. The agent cannot tell from either source what limit controls (event count? byte cap?), its default, or what happens when it is omitted, so the description fails to compensate for the schema gap.

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 gives a specific verb+resource ("Прочитать новые события игры" – read new game events) and enumerates the event categories (server messages, combat, NPC, inventory), which makes the tool's scope immediately recognizable. It does not name or contrast with any of the ~70 siblings such as game_look or game_status, so the differentiation is implicit rather than stated.

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 explicit when-to-use guidance, no statement of when not to use it, and no reference to an alternative tool for polling versus inspecting state. An agent must infer from the word "новые" (new) that this is a polling/delta-fetch tool, and nothing tells it whether it should be called before or after actions like game_move or game_attack_monsters.

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