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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds the 25-item batch cap and notes the POST endpoint, which usefully signals a read performed via POST, but it says nothing about rate limits, error behavior for invalid SKUs, or partial failures in a batch.

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?

Two short sentences with the key facts front-loaded; nothing pads it out. The trailing 'POST /v3/get_product_details.' largely restates the tool name, though the endpoint mapping has some value.

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?

With one fully documented parameter and no output schema, the definition covers what is needed to invoke it correctly. 'Details and pricing' hints at the return shape, but the response structure for a batch of up to 25 SKUs is left unstated.

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%, with sku and quantity both explained in-schema. The description only echoes the quantity concept ('at given quantities') and the 25-item limit, adding little beyond the structured fields, so the 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?

States a specific verb (get details and pricing) against a specific resource (virtual inventory SKUs) with a batching scope of 25. An agent can tell it is a per-SKU lookup tool, though it does not explicitly distinguish itself from sibling finerworks_get_prices or finerworks_list_virtual_inventory.

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?

Usage is only implied: the description suggests calling it when you already hold SKUs and quantities, but it never states when to prefer it over finerworks_get_prices (pricing-only) or finerworks_list_virtual_inventory (enumeration). No prerequisites or exclusions are given.

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