os_downloads_list_product_downloads

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

The annotations already declare readOnlyHint, openWorldHint, and idempotentHint, covering the safety and side-effect profile. The description adds no behavioral details such as return format, pagination behavior, or limits. It does not contradict the annotations; it simply restates the operation. Given the annotations cover the main safety aspects, a 3 is appropriate.

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, clear sentence with no redundant words. It is front-loaded with the core action and resource. There is no fluff or unnecessary detail, which is appropriate for a tool with a straightforward purpose.

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?

While an output schema exists, the description omits critical usage context such as how pagination works, what the delivery parameter means, or what constitutes a 'download entry'. For a tool with 7 parameters and 0% schema coverage, this is incomplete. The description does not prepare an agent to handle optional parameters 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 explain the parameters, but it only mentions the product scope. It provides no meaning for limit, offset, pageToken, delivery, or inlineMaxBytes beyond their schema types and constraints. The description fails to compensate for the lack of schema documentation, leaving an agent uncertain about how to use key parameters.

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 (list), the resource (download entries), and the scope (for a specific OS Downloads product). It distinguishes itself from siblings like os_downloads_list_products (lists products) and os_downloads_get_product (gets a product) by focusing on download entries for a given product.

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 description provides no explicit guidance on when to use this tool versus alternatives. It does not mention conditions like needing a product ID, pagination, or when to prefer a sibling tool such as os_downloads_list_products. The context is implied by the name but not explicitly stated.

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