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

With no annotations, the description carries the full behavioral burden and does well: it states the operation is destructive and irreversible, that resolution stops immediately, that all records are wiped from node and site, and that the domain registration itself is untouched. It omits permission/confirmation requirements and any cascading effects (e.g. DNSSEC state), which keeps it short of a 5.

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?

Two sentences, zero filler, with the destructive nature front-loaded before the mitigating detail about the domain being unaffected. Every clause carries information an agent needs.

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 single-parameter delete with no annotations and no output schema, the description covers the consequences an agent must weigh before invoking it. Remaining gaps are the response shape and any authorization prerequisite, but the critical destructive semantics are fully stated.

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 single required parameter zoneId is never mentioned in the description, so nothing compensates for the empty schema. The name and uuid format make the parameter inferable, but the description adds no meaning about which zone identifier to supply (e.g. whether it must be the hosting zone id vs. the domain).

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?

"Delete a DNS hosting zone" is a precise verb+resource that clearly separates it from the sibling dns_zone_create and from record-level tools like dns_record_delete. An agent can identify what the tool acts on without opening the schema.

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?

It establishes the destructive/irreversible condition under which this tool is appropriate and points at dns_zone_create as the path back, giving real context for choosing it. It never explicitly names a sibling to use instead (e.g. dns_record_delete for removing individual records), so it stops short of a full when/when-not mapping.

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