ListHost

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

No annotations exist, and the description offers no behavioral information—no side effects, read-only status, or limitations. The description is a bare phrase that repeats the tool's identity.

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?

While it is short, this is under-specification rather than concise clarity. The single sentence contributes no operational detail and could be replaced by the tool name itself.

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?

Given the nested body schema, an absent output schema, and no annotations, the description is grossly incomplete. It neither explains returned data, filtering semantics, nor how host listing works.

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?

The schema provides descriptions for region and project_id, and the body object is structurally defined with filter fields and host_id_list. With 67% schema description coverage, the schema carries the parameter semantics; the description adds nothing but is not required to compensate.

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 merely restates the tool name ('ListHost') as 'Huawei Cloud LTS operation ListHost,' providing no verb-resource specificity beyond the name itself. It fails to distinguish this host-listing operation from sibling list tools like ListHostGroup.

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 guidance on when to use ListHost versus alternatives such as ListHostGroup or ListLogStream. No context about prerequisites, use cases, or exclusions.

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