vtex_get_sku

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

With no annotations provided, the description carries full burden but only states the basic action without disclosing behavioral traits. It doesn't mention if this is a read-only operation, requires authentication, has rate limits, or what the output format might be (e.g., JSON structure, error handling). The description is minimal and lacks critical context for safe invocation.

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, efficient sentence with zero waste. It's front-loaded with the core purpose and appropriately sized for a simple retrieval tool, making it easy to parse quickly.

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 (1 parameter, 100% schema coverage) but lack of annotations and output schema, the description is incomplete. It doesn't address behavioral aspects like safety, response format, or error conditions, which are essential for an agent to use it effectively in a VTEX e-commerce context.

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 description adds no parameter details beyond what the schema provides. With 100% schema description coverage (the 'skuId' parameter is documented as 'SKU ID'), the baseline is 3. The description doesn't elaborate on format, validation, or examples, so it meets but doesn't exceed the minimum.

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 'Get SKU details by ID' clearly states the action (get) and resource (SKU details) with a specific identifier (by ID). It distinguishes from siblings like 'vtex_get_sku_by_refid' by specifying ID-based retrieval, though it doesn't explicitly contrast with all similar tools like 'vtex_get_product_and_sku_ids'.

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. It doesn't mention prerequisites, when not to use it, or compare with siblings like 'vtex_get_sku_by_refid' or 'vtex_get_product_and_sku_ids', leaving the agent to infer usage from context alone.

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