Update age rating declaration

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

Annotations already establish readOnlyHint=false and idempotentHint=false, and the description's 'Update' aligns with that. The description adds useful context about the app version scope and ID retrieval, but it doesn't disclose behavioral details like whether unspecified fields remain unchanged or what response to expect, so it's minimal beyond the schema.

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 a single focused sentence followed by a practical instruction on obtaining the ID. No redundancy or filler; it is immediately useful and easy to parse.

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?

Given the tool's complexity (16 parameters, no output schema), the description is under-specified. It doesn't explain how to set content rating fields, whether updates are partial or full, or what the API returns. The ID source hint is helpful but insufficient for an agent to confidently invoke the tool.

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?

Only 2 of 16 parameters have schema descriptions (13% coverage), and the description compensates only by explaining the source for ageRatingDeclarationId. Other parameters, including the many enum fields (gambling, violenceRealistic, etc.), remain unexplained, so an agent gets little guidance for constructing the request.

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 clearly states the action ('Update'), the resource ('age rating declaration'), and the context ('for an app version (content ratings)'). It differentiates from sibling update tools by targeting a specific object type, and the ID source instruction adds practical scoping.

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?

It gives a clear prerequisite for obtaining the required ID, directing users to get-app-info or get-app-store-version. However, it doesn't explicitly state when not to use this tool or name alternative tools, though the verb and resource are sufficiently unique among siblings.

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