getProductPrices

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

With no annotations, the description must disclose behavioral traits. It only states the action (get price data) but does not mention read-only nature, authentication needs, rate limits, or error handling when barcode is missing.

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 very concise (one sentence), but given the tool has three parameters and no output schema, it is too brief to be fully effective. It earns its place but leaves out critical details.

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 is incomplete for a tool with three parameters and no output schema. It does not explain how pagination works, what the return format is, or when this tool is preferable over sibling price tools.

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?

Only 33% of parameters have schema descriptions (barcode only). The tool description adds no additional meaning to page or pageSize, and the schema coverage is low, so the description should compensate but does not.

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 it retrieves crowd-sourced price data for a product and hints at comparative pricing, which distinguishes it from product info tools like getProductByBarcode. However, it does not explicitly differentiate from other price-related siblings like getRecentPrices or searchPrices.

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?

No guidance is provided on when to use this tool versus alternatives. The description lacks context for selection, such as when to use getProductPrices over getRecentPrices or compareProducts.

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