apple_set_age_rating

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

No annotations are provided, so the description must carry the behavioral burden. It discloses that this is an external action, that it starts from all 'no/NONE' defaults, and that only provided overrides are applied. That clarifies the mutation semantics well, though it omits permission requirements or whether the change is immediately live.

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?

The description is brief, front-loaded with the core action, and every sentence adds value. The example clarifies the overrides format without wasted words.

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?

An output schema exists, so return values need not be explained. For a mutation tool with no annotations and 0% schema coverage, the description supplies the key behavioral and parameter context. It still lacks sibling routing and prerequisite/auth details, keeping it short of a 5.

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 explain parameters. It clearly defines the behavior of `overrides` (applied on top of no/NONE defaults), enumerates valid frequency values, and provides a concrete example object. `app_id` is undocumented but self-evident.

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 and resource: it sets or answers the age rating questionnaire. It is clearly distinct from generic app-info or privacy setters. However, it does not explicitly name sibling tools or differentiate itself from them, so it falls short of a 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?

Usage is implied by the phrase 'Answer the age rating questionnaire,' but there is no explicit when-to-use, when-not-to-use, or alternative tool guidance. The context of an app store submission makes the use case inferable, but the description does not carry the burden of routing.

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