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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=true, so the safety profile is covered. The description adds the useful scoping constraints (single product, optional date and warehouse) but says nothing about return format, ordering, or pagination behavior of the movement list.

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?

A single tight sentence with the resource and scope front-loaded and zero padding. It is terse but appropriately sized for a simple read tool.

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 GET read tool with no output schema, the description covers what is fetched and the available filters, but leaves the shape of the kardex response (entry fields, ordering, pagination) entirely unstated. Adequate but with clear gaps.

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 0%, so the description must carry the burden. It maps roles to all three parameters (product_id = 'one product', date_to = 'to a date', warehouse_id = 'one warehouse'), but gives no format details, date semantics (inclusive cutoff, timezone), or whether warehouse_id is an internal id or code.

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 names a specific resource (stock movements/kardex of one product) and an endpoint, so an agent knows it retrieves movement history rather than a stock snapshot. It does not explicitly differentiate itself from closely related siblings like laudus_get_product_stock or laudus_list_stock, leaving that comparison to inference.

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 phrase 'optionally to a date and for one warehouse' implies how to narrow results, but there is no explicit when-to-use guidance versus laudus_get_product_stock or laudus_list_stock. An agent must infer that this returns movement history rather than current balances.

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