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

Annotations already indicate readOnlyHint=true and destructiveHint=false, and the description adds no behavioral information beyond the safety profile. It does not describe output format, filtering behavior, or any constraints, so it provides no additional transparency value.

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 only six words and is a redundant phrase, not a meaningful specification. It does not earn its place because it provides zero new information; this is under-specification, not conciseness.

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?

As a retrieval tool, even a simple one, the description omits essential context like what identifies a domain, whether it returns a single object or a list, and how it differs from listDomains. The absence of any useful information makes it completely inadequate for safe invocation.

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?

With 0% schema description coverage, the description needed to explain parameters like 'domain' and the request ID fields, but it is completely silent on them. This leaves the agent to guess the purpose and format of all three parameters.

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 'List specific domain' is a tautology that exactly repeats the title, providing no additional specificity beyond what the tool name already conveys. It does not distinguish this from sibling tools like 'listDomains' or 'retrieveDnsZone'.

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 guidance on when to use this tool versus alternatives. The description neither provides context nor excludes any scenarios, leaving the agent without direction on choosing this among the many retrieve/list tools.

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