ebay_get_notification_subscription

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

With no annotations provided, the description carries the full burden for behavioral disclosure. It correctly indicates a read operation ('Get'), but lacks additional behaviors such as authentication requirements, response format, or error handling. For a simple retrieval, this is minimally adequate.

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 sentence with no redundant information. Every word contributes to the purpose, making it highly concise and well-structured.

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 absence of an output schema, the description could provide more context on what is returned (e.g., subscription details) or error scenarios. It is adequate for a simple retrieval but lacks completeness for an unfamiliar agent.

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?

The input schema has 100% description coverage, so the baseline is 3. The description adds no new meaning beyond the schema's parameter description, merely repackaging it as 'by ID'.

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 'Get a specific notification subscription by ID' clearly states the action (get) and resource (notification subscription), and specifies the identifier method (by ID), distinguishing it from sibling tools like ebay_get_notification_subscriptions which likely list all subscriptions.

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 implies usage when a specific subscription_id is known to retrieve details, which is clear from the purpose. It does not explicitly mention when not to use it or alternatives, but the context of a simple get-by-ID is well understood.

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