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

Annotations already declare readOnlyHint=true, openWorldHint=true, and destructiveHint=false, so the safety profile is covered. The description adds useful scope context that the forecast is platform-wide and limited to 1-12 weeks ahead, but it does not discuss response format, permissions, or rate limits.

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 a single front-loaded sentence with the essential scope and horizon, followed only by the endpoint path. There is no wasted text, and the key constraints are immediately visible.

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 two-parameter read-only retrieval tool with full schema coverage and annotations, the description supplies enough context to invoke it correctly. It conceptually explains the returned forecast, though without an output schema it could say a bit more about the response shape or units.

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 both offer_id and weeks_ahead are already documented in the input schema. The description reinforces that the forecast is for one offer and covers 1-12 weeks, but adds no syntax, format, or constraint detail beyond the schema.

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 a specific resource and operation: a sales forecast for one offer, covering expected sales on the whole bol.com platform for the next 1-12 weeks. It is easy to distinguish from siblings such as bol_get_offer or bol_get_performance_indicator, though it does not explicitly name alternatives.

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 implies when to use the tool by specifying that it returns a forward-looking sales forecast for a single offer over 1-12 weeks. However, it gives no explicit when-to-use guidance, no exclusions, and no comparison to alternative tools.

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