etsy_get_item_details

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

With no annotations, the description carries the burden of explaining behavior. It clearly signals a read-only operation ('Get') and describes what data will be returned. It does not mention potential side effects, authentication, or rate limits, but these are less critical for a GET-style tool and the return content is well disclosed.

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, compact sentence that front-loads the core purpose and immediately lists what the caller will receive. There is no wasted wording.

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?

The description covers the output content but leaves a notable gap: both parameters are marked optional in the schema, and the description does not state that at least one identifier (listing_id or listing_url) must be supplied. Without an output schema, this missing requirement could lead to an agent calling the tool with no arguments. Otherwise, for a simple retrieval tool, the description is reasonably complete.

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%, so parameter semantics are already fully documented by the schema. The description adds no additional meaning beyond referencing a 'specific Etsy listing' and does not clarify the relationship between the two identifier parameters or that at least one is expected.

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 tool retrieves detailed information for a specific Etsy listing and enumerates the key content areas (seller info, reviews, shipping, variations). It is easy to distinguish from siblings like etsy_search_products, which searches rather than retrieves details for a known listing.

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 clear context: use this when you need detailed information about a specific, already-identified listing. It does not explicitly exclude alternatives or name sibling tools, but the purpose is specific enough that an agent can infer when it applies versus searching or viewing cart.

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