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

Annotations already declare readOnlyHint=false and destructiveHint=true, so the description adds no additional behavioral context. It does not disclose the effects of creating a zone, any validation rules, or what happens to existing resources. The phrase 'for a customer' is too vague to provide meaningful transparency beyond the annotations.

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 very short but contains redundancy: 'Create DNS zone' repeats the title, and 'for a customer' adds little value. It is not overly verbose, but it wastes the opportunity to add essential context in its limited space.

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?

The description is too sparse for a tool with a nested request body and no output schema. It omits details like valid zone naming conventions, whether the zone is created empty or with default records, and what the response contains. Given the complexity of the schema and lack of output schema, the description is inadequate for reliable 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?

Schema description coverage is 0%, and the description does not compensate by explaining any parameters. It offers no insight into the required createDnsZoneBody or the zoneName format, forcing the agent to rely on the schema alone, which is minimal. The only hint is the word 'zone' in the description, which is already evident.

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 clearly states the action ('Create') and the resource ('a new DNS zone for a customer'), which directly aligns with the tool name and distinguishes it from siblings like createDnsZoneRecord. The verb and resource are specific and unambiguous.

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 is provided on when to use this tool versus alternatives. There is no mention of prerequisites, such as needing a customer or domain, nor any comparison to related tools like createDnsZoneRecord or deleteDnsZone. The agent must infer usage entirely from the name and title.

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