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

With no annotations, the description carries full burden; it does disclose the closed set of possible status outcomes (pending, verified, expired, failed, denied), which is genuinely useful behavior information. However it says nothing about read-only safety, authentication needs, rate limits, or whether the result is a snapshot versus live state.

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?

One short sentence with the status enumeration placed inline, no filler. It is efficiently sized, though the terseness borders on under-specification rather than genuinely economical prose.

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?

No output schema, no annotations, and an undocumented required parameter mean the description should do more. It omits where the verification_id comes from, whether the call is safe/read-only, and how the returned status maps to next actions (e.g., retry versus give up on failure/expired).

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 single required parameter verification_id is undocumented in both schema and description. The description does not explain where to obtain a verification_id (presumably from start_dns_verification or start_email_verification) or its format, leaving the only parameter's semantics unaddressed.

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 names the resource (one verification) and the aspect being retrieved (its status), and enumerates the possible states. It is clear what the tool returns, though it never uses an explicit verb and does not distinguish itself from siblings like check_dns_verification or confirm_email_verification.

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 statement of when to use this lookup versus check_dns_verification, confirm_email_verification, or the start_* tools, and no mention of prerequisites or polling guidance. The agent must infer usage entirely from the name.

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