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

Annotations already establish readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds useful context beyond that: it signals a 'Pro' access tier, states 'Reads only', and describes nuanced report contents such as superseded rows and SKUs missing default-currency pricing. No contradiction with 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?

The description is one efficient sentence followed by two short useful fragments ('Reads only.' and 'Pro.'). The core action is front-loaded, every clause adds information about the report's scope or contents, and there is no filler or redundancy.

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 no required parameters, two well-documented optional parameters, and read-only annotations, the description covers everything an agent needs to invoke the tool correctly. The output schema is absent, but the description compensates by enumerating the report sections that will be returned.

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%: date is documented with YYYY-MM-DD format and a today default, and limit is documented with per-section row bounds and a 500 ceiling. The description adds little beyond the phrase 'as at date', so it does not need to compensate for missing schema detail.

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 begins with a specific verb and resource ('Report the catalogue as at date') and then enumerates exact output categories: SKU counts, in-force price rows, superseded rows, and SKUs missing a default-currency price. This clearly distinguishes it from sibling list/retrieval tools like sku_list and price_list_text, which return raw records rather than aggregated report sections.

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 provides no explicit guidance on when to use this tool versus alternatives, nor any when-not conditions. It only implies report-style usage via 'as at date' and 'Reads only', but does not name sibling tools or explain that sku_list/price_list_text should be used for raw or formatted listings.

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