get-inventory-items

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

With no annotations, the description carries the full behavioral burden. It discloses scope by saying details are returned for all variants and lists fields, but it does not describe permissions, pagination, empty-result behavior, or other operational constraints.

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 definition is a single front-loaded sentence with no wasted text. The field list is useful and earns its place by clarifying the return payload.

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?

This is a simple one-parameter read tool with full schema coverage, and the description enumerates the returned fields despite no output schema. It is mostly complete, though it could mention how it relates to the inventory-levels sibling.

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%, and the single productId parameter is already well documented in the schema with examples. The description does not add parameter detail beyond the schema, so the baseline score of 3 is appropriate.

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 states a specific verb and resource: get inventory item details for all variants of a product, and it enumerates the returned fields such as SKU, cost, tracked status, country of origin, and HS codes. It is clear what the tool does, but it does not explicitly distinguish itself from nearby siblings like get-inventory-levels or get-product-variants-detailed.

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 gives no explicit when-to-use guidance, exclusions, or alternatives. A sibling such as get-inventory-levels likely handles inventory quantities, but this description does not route the agent between the two.

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