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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint=false and destructiveHint=false, so 'Read-only' in the description is largely redundant. What the description does add beyond annotations is the result ordering and grouping structure, which is useful behavioral context, but it says nothing about pagination, volume, or whether comments include author/status metadata.

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 zero filler: resource, ordering, grouping, and access mode each appear once and earn their place. Nothing is buried or repeated.

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 single-required-parameter read tool with full schema coverage, rich safety annotations, and no output schema, the description covers what an agent needs in order to call it correctly. It could add a little on return content (e.g. what fields a comment carries) or pagination behavior, but that is a minor gap.

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 100% and the single applicationId parameter is fully documented in the schema, including its link to list_applications. The phrase 'on a game' merely restates that parameter, adding no syntax or format detail beyond the schema.

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 names the specific resource ('moderation correspondence on a game'), its ordering ('newest first') and grouping ('by moderation task'), which is well beyond restating the name. It stops short of a sibling comparison, though no other sibling tool deals with moderation correspondence, so the distinction is largely implicit in the name.

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?

There is no explicit guidance on when to use this tool, no prerequisites, and no mention of alternatives such as get_application for general game data. Usage is only inferable from the name and the 'read-only' note.

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