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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds the scope of what is searched (multiple supplier categories), but it does not disclose matching semantics, result ordering, pagination, or default behavior. This is acceptable given the annotations cover side effects.

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 description is a single front-loaded sentence with no filler. The enumeration of supplier types is compact and informative, though it could arguably be trimmed without losing core meaning.

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 search tool with three undocumented optional parameters, no output schema, no enums, and many closely related sibling tools, this description is too thin. It does not explain how the parameters combine, what a response looks like, or how this differs from other search-capability tools, leaving significant gaps for an agent deciding whether and how to invoke it.

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 compensate for undocumented parameters. The listed categories partially illuminate the 'supplier_types' parameter, but 'capability' and 'limit' receive no explanation, leaving most parameter semantics ambiguous. The description adds some value but not enough to overcome the 0% schema coverage.

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 ('Search') and a resource ('suppliers'), and enumerates the categories covered: AI, human, API, compute, data, file, software, and hybrid. It is clear on its own, but it does not differentiate itself from the very similarly named sibling tool 'search_capability_suppliers'.

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 description gives no guidance on when to use this tool instead of related siblings such as 'search_capability_suppliers', 'discover_compute', or 'search_supply_graph'. There is no mention of preferred scenarios, exclusions, or alternatives, so an agent would have to guess which search tool fits.

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