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

Annotations already establish read-only, non-destructive, open-world behavior. The description adds useful context beyond that: it returns a normal website purchase link where permitted and does not create an order or charge a customer.

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 with no waste: the first establishes purpose and the second adds the key behavioral boundary around purchase links and no order creation.

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?

For a simple read-only tool with one parameter and no output schema, the description covers the main outcome and safety boundary. The remaining gap is that it does not explain the product enum semantics or response shape when the host does not permit the purchase-link workflow.

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?

The only parameter is product, with schema description coverage at 0%. The description says 'explicitly selected product' but does not explain what the men/women enum values mean or how they affect the returned offer.

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 resource and outcome: explaining the existing Aura DNA report, base price, required intake, and purchase link for a selected product. It distinguishes itself from report-listing/reading siblings by focusing on offer/pricing and purchase-link information, though 'Explain' is slightly less direct than 'get offer.'

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?

It implies usage for an explicitly selected product and notes the host-permitted workflow, which gives some context. However, it does not explicitly say when to use this instead of siblings like get_report or find_season_essentials.

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