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

Annotations already cover the read-only, non-destructive, closed-world profile, so the description's added value is in clarifying that these are fixed built-in values (a static reference, not mutable user data) and in spelling out what each category actually contains. It does not describe the response shape, which is acceptable given there is no output schema but is a minor gap.

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 front-loaded sentence with the verb first, and the parenthetical glosses are informative rather than filler. It is dense but every clause maps to either a return category or the filter behavior, with no obvious padding.

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 one-parameter, read-only reference lookup with no output schema, the description supplies what the tool returns across all four categories and how filtering changes that set. There is little an agent would need beyond this before calling it 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 description coverage is 0%, so the description must carry the load, and it does: it glosses each of the four enum values, notably clarifying that scene_styles are 'the scene_style values for games and scenes' and that scene_action_configs cover events, actions, and dialogue options. It also signals the parameter is optional and that omitting it returns everything, though it never states the parameter name or default explicitly.

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?

Uses a specific verb ('Get') with a precise resource ('built-in game configuration options') and then enumerates the four content categories. The word 'built-in' plus the enumeration distinguishes this from sibling entity getters such as get_game or get_style, which return user-created objects rather than static reference data.

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 only guidance is 'Optionally limit the result to one category,' which explains the filtering option but not when to reach for this tool. There is no explicit statement such as 'use this to discover valid scene_style values before calling create_scene,' and no mention of alternatives like get_game for a single game's settings.

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