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

With no annotations, the description must carry the behavioral load. It usefully discloses the sandbox default and the production/supplier-confirmed distinction, which an agent could not infer from the schema. It does not cover result set size, pagination, or rate/permission constraints.

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 tight sentences with no filler, and the search scope is front-loaded before the environment caveat. Nothing extraneous, though it is arguably a bit terse given six parameters.

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?

There is no output schema, so the description is the only place return behavior could be described, and it says nothing about result format or how limit interacts with results. It covers the filter facets and the environment semantics adequately for a search tool but leaves 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 should compensate. It names most filters (keyword, MOQ, price, category, environment) and explicitly explains environment, but adds no syntax or unit detail for minMoq/maxPrice and never accounts for the limit parameter.

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 (Search) and resource (products) and enumerates the filterable facets (keyword, MOQ, price, category), which lets an agent distinguish it from get_product and compare_quotes. It stops short of explicitly contrasting with those siblings, but the purpose is clear.

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?

Gives one concrete operational pointer: defaults to sandbox, use environment=production for supplier-confirmed merchant listings. That is useful environment guidance, but there is no statement of when to prefer this tool over compare_quotes or get_product, so usage is only implied.

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