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

Annotations already declare readOnly, idempotent, non-destructive and closed-world, so the safety profile is covered. The description adds useful behavior beyond that: it accepts either a resolved id or a raw title, and it names the observable outputs (a description and a game page link). No gaps that would cause a mis-call.

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?

Three tight sentences: the trigger first, then input expectations, then the return shape. Every sentence carries distinct information and nothing is repeated from the schema.

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 an output schema present and rich annotations, the description only needs to cover trigger, inputs and destination tool routing, all of which it does. An agent has everything required to select and invoke this tool correctly.

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%, with the 'game' parameter already documented as 'Game id (for example 'impostor') or title' and the locale enum fully spelled out. The description restates the id-or-title flexibility but adds no syntax, matching, or ambiguity-resolution guidance for title lookups, 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 states a specific verb+resource combination: looking up details for one specific PadConsole game, and enumerates the kinds of facts it answers (player count, genre, cross-home play). The 'one specific game' framing implicitly separates it from search_games and recommend_games, but no sibling is named explicitly, so it stops short of a full 5.

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?

'Use this when someone asks about one specific PadConsole game' gives a clear triggering condition, and 'Takes a game id returned by another tool or a title' documents the upstream workflow. It never states when not to use it (e.g., browsing or discovery, which search_games/recommend_games cover), leaving that inference to the agent.

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