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

With no annotations, the description carries the full burden, and it does disclose a meaningful boundary: it 'Never contacts buyers or moves money,' ruling out side effects. However it says nothing about read-only status, authentication, rate limits, or idempotency, so the disclosure is partial rather than complete.

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 dense, front-loaded sentence with no filler; the negative constraint is appended cleanly. It earns its length, though the clause pile-up is slightly hard to parse.

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?

No output schema exists, and the description usefully sketches the fields qualification yields, which partially substitutes for one. But with two undocumented parameters and no annotations, an agent lacks enough to invoke it correctly against its siblings.

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?

Both parameters (limit, query) have 0% schema description coverage, so the description must compensate — and it does not mention either param or its expected format. A caller has no idea how to scope or paginate the qualification lookup.

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 ('qualify') and resource ('live Buyer demand'), then enumerates the concrete outputs (terms, deadline, supplier requirements, entry route, commission policy). It implicitly differs from discover_buyer_demand, but sibling differentiation is left to the reader rather than being explicit.

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 or when-not-to-use guidance is given. With siblings like discover_buyer_demand and mars_deal_route_precheck that could plausibly overlap, the description never says which situation selects this tool over them.

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