get_catalog_product

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

No annotations are provided, so the description carries the full behavioral burden; it discloses the returned fields (name, attributes, pictures, main features, buy box winner), a 'when present' caveat, and the business semantics of buy_box_winner as the price reference. It stops short of permissions, rate limits, or error behavior, which is the only gap keeping it from 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?

Three sentences, front-loaded with the purpose, then usage, then return contents. Every sentence earns its place, though the buy-box explanation is slightly verbose for a single-parameter read tool.

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?

No output schema exists, so the description correctly compensates by enumerating return fields, and it explains when the tool is used in the workflow. Given no annotations, it could disclose a bit more about permissions/failure modes, but it is complete enough to invoke 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 coverage is 100% and the schema itself documents product_id with an example ID format. The description adds no syntax or format detail beyond what the schema already provides, so baseline 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?

Names a specific verb+resource ('Get full details of a catalog product') and immediately distinguishes itself by calling out the buy box winner payload, which no sibling provides. An agent can differentiate it from search_catalog (search) and create_catalog_listing (link) without opening a schema.

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?

Explicit sequencing: 'Use this after search_catalog' and 'before linking your listing with create_catalog_listing.' It names the alternatives and the condition that routes to each, leaving nothing to inference.

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