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

Annotations already fully cover the safety profile (readOnly, idempotent, non-destructive, closed-world), so the bar is lower. The description still adds a genuine behavioral constraint beyond the structured fields: results are limited to the current work-unit snapshot and out-of-snapshot products are excluded, which is real value for interpreting completeness of results.

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 short sentences with zero waste: the first states what is read, the second states the scope limitation. The most important constraint (snapshot boundary) is front-loaded alongside the field list.

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?

An output schema exists, so return-value documentation is not required, and the description is sufficient for correct invocation. It is close to complete, though it could say a bit more about how the three filters combine or whether the read is always scoped by entity.

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 the three filter parameters (category, entity_name, supplier_name) are already documented in the schema; the baseline of 3 applies. The description adds no syntax, matching behavior, or interaction semantics for these filters beyond what the schema states.

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 gives a specific verb ('Reads') plus the resource (products) and names the field groups returned (price, cost, margin, lifecycle), so an agent knows what the tool surfaces. It does not, however, explicitly contrast itself with nearby siblings such as twelfth_list_products or get_inventory_position.

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?

Usage is implied by the 'current work-unit snapshot' scoping statement, which signals the context in which results are valid, but there is no explicit when-to-use or when-not-to-use guidance and no alternative tool is named. An agent must infer routing decisions on its own.

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