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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so safety is covered. The description adds that the games are free, open-source and phone-friendly but says nothing about result shape, result count, or whether filtering is exact-match — modest added value over the annotations.

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 compact sentences: identity first, triggering condition second, parameter detail last. No filler and no repetition of the title.

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 two-optional-parameter read tool with no output schema, the description covers what it returns conceptually (a set of games) and what the filters do. Missing only return-shape details (list format, counts, pagination), which is a minor gap for a simple catalog viewer.

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 0%, so the description carries the load and does so well: it enumerates all ten valid category values and clarifies that `query` is a free-text search word. It stops short of stating case sensitivity, exact-match behavior, or whether query and category combine.

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?

Description states a specific resource (AGENTPARK arcade catalog) and what it contains (free open-source browser games, mobile-friendly). It weakly distinguishes from siblings — browsing/listing versus new_games, play_game, rate_game — but never names them, so the agent must infer that this is the browse/listing entry point.

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 when the user asks for AGENTPARK, the arcade, or a game to play or browse' gives clear triggering conditions. No explicit when-not or named alternative (e.g. 'use play_game to launch a specific title'), so routing between siblings is left to inference.

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