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

Annotations declare destructiveHint=true, readOnlyHint=false and idempotentHint=false, so the safety profile is partly covered. The description adds the return payload (product id, SKU, sku_url), which is genuinely useful given there is no output schema. However, it says nothing about the irreversible write, the dry_run validate-only path, or idempotency behavior, so behavioral disclosure is thin beyond the 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?

Two dense sentences, front-loaded with the operation and scope, followed immediately by the return contract. No filler, no 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?

For a 15-parameter create tool with no output schema, covering the return values is a good move, and annotations carry the safety flags. Still missing: any hint that dry_run and idempotency_key exist and matter, and any routing against the other create_* siblings. Usable, but not complete for a mutation of this size.

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 coverage is 60%, in the middle band, and the description merely restates a handful of schema keys (SKU, name, barcode, cost, price, weight, suppliers) without adding formats, constraints, or defaults. It does not compensate for the ~40% of parameters (images, attributes, brand_name, idempotency_key, dry_run) that lack schema descriptions. Adequate, but not additive.

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?

States a specific verb+resource ('Creates one catalog product') and scopes it as a single item, which separates it from the read/update siblings like get_products, search_products, and update_product_pricing. It also enumerates the payload contents (SKU, name, barcode, cost, price, weight, supplier links). It stops short of naming an alternative tool, so it is clear but not explicitly differentiated.

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 when-to-use guidance, no prerequisites, and no mention of the notable alternatives or modes available to the caller (dry_run validation, idempotency_key replay) even though those appear in the schema. The agent is left to infer that this is the right tool for creating a single catalog product.

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