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

Annotations already declare readOnlyHint, idempotentHint, and openWorldHint, so the safety profile is covered. The description adds the context that it returns a URL and is intended for bulk/procurement review, but no additional behavioral details such as authentication or rate limits. This is adequate given the annotations.

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 sentences, direct and front-loaded. The first sentence states the action and resource, the second gives the usage context. No redundant or filler content.

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 tool's simplicity, a 5-parameter schema with no output schema, the description sufficiently explains what it returns (a URL) and when to use it. It could mention how the URL should be used, but the purpose and usage are clear 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 description coverage is 100%, so every parameter is already well-documented. The description adds only marginal meaning by tying the purpose to 'exact packaging spec or SKU,' but it does not explain any parameter semantics beyond the schema. Baseline 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 clearly states the tool returns a quote-request URL for a packaging spec or SKU, and explicitly notes it is for cases with no exact match or bulk/procurement needs. This distinguishes it from sibling tools like get_product or search_products.

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 a clear 'when to use' condition: 'Use when no exact match exists or the buyer needs bulk or procurement review.' It does not explicitly name alternatives or provide a 'when not' clause, but the condition implies when not to use it.

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