list_app_screenshot_sets

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

With no annotations present, the description carries the full burden and does useful work: it discloses the return shape (one set per display type), ordering (screenshots in display order), and included fields (file name, assetDeliveryState with its meaning). It stops short of stating pagination behavior or that it is a non-mutating read, which keeps it off a 5.

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 dense sentence that is front-loaded with the primary action and then details the return contents. No filler, though the enumeration of display types makes it long enough that structure could be improved.

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?

There is no output schema or annotations, so the description must cover the return values, and it does so concretely (display types, ordering, file name, assetDeliveryState). It lacks pagination/auth context that an agent might want, but is otherwise adequate for a one-parameter read 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?

Schema description coverage is 100% for the single localization_id parameter, so the schema already documents its meaning and source. The description only restates that filtering is by version localization, adding no syntax or constraint details, so the schema-coverage baseline of 3 applies.

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?

States a specific verb and resource: lists App Store screenshot sets for a version localization, and specifies the granularity (one set per display type) plus what each entry contains. It does not explicitly differentiate itself from sibling tools like list_app_store_version_localizations or upload_app_screenshots, so it is clear but not sibling-routing.

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 when-to-use guidance, no preconditions, and no named alternatives. The agent can infer it is a read/list operation, but nothing states when this tool is preferred over list_app_store_version_localizations or get_app_store_version_localization.

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