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

Annotations already declare readOnlyHint=true and openWorldHint=false, so safety is covered. The description adds genuinely useful behavioral context beyond that: it discloses the specific band values, that a cULus/CSA certification can extend a band to within 36 weeks, and that export-market builds differ. It does not describe return format or response structure, but with annotations carrying the safety profile this is a solid addition.

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 core purpose is front-loaded in the first clause, and the density of band detail is informative rather than filler. The single block-like sentence is somewhat packed and could be broken into list form for easier scanning, but nothing is redundant.

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 read-only, two-parameter tool with a fully documented schema, the description supplies the substantive domain content an agent needs (band ranges, certification and market effects). Since no output schema exists, it reasonably conveys what the return contains, though it could say more about the response shape.

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 both 'id' and 'market' are already fully documented in the schema, including the market enum meanings. The description adds no syntax, format, or constraint detail beyond that. Baseline 3 applies when the schema does the heavy lifting.

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 states a specific verb and resource: it returns the 'Delivery lead-time band for a product (weeks, purchase order to shipment)' plus company-wide lead-time and warranty commitments. It is unambiguous what the tool produces. It never names or contrasts with siblings like get_company_facts or get_product, so it stops short of full sibling differentiation.

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?

There is no explicit when-to-use or when-not-to-use guidance. The description never references alternatives, even though get_company_facts overlaps with the 'company-wide lead-time and warranty commitments' portion and get_product also takes a product id. An agent must infer the routing decision from the purpose statement alone.

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