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

With no annotations supplied, the description carries the full burden, and it does disclose a non-obvious side effect: the verification code is removed from pages, meaning this mutates site content, not just an external account. It does not state irreversibility, required permissions, or whether the verification code removal can be undone, which are the gaps that matter for a destructive operation.

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, front-loaded with the primary action and followed by the secondary effect. No filler or repetition, though the sentence is so terse that the scope clarification is compressed rather than explained.

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 destructive, annotation-free tool with an undocumented required parameter and no output schema, the definition should say more: what happens on failure, whether the site must exist in Webmaster, and what the slug denotes. It covers the action and one side effect but leaves an agent without enough to call it safely in edge cases.

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 has one required parameter, slug, with 0% description coverage, so the description should clarify what the identifier refers to (site slug/domain in the hosting account). It never mentions the parameter at all; the only clue is that the tool targets 'a site'. Baseline for a single param with an obvious name keeps this near 3, but the total absence of clarification is a real gap.

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 gives a specific verb and resource: delete a site from Yandex.Webmaster, plus the concrete side effect of stripping the verification code from pages. An agent understands exactly what the call does, though it does not explicitly distinguish itself from the sibling vebhost_delete_site.

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 when-to-use or when-not-to-use guidance, and no mention of prerequisites such as the site having been added to Webmaster first. The implied scope (removal from Webmaster only, not file deletion) is inferable from the side-effect clause but never stated as a routing rule against vebhost_delete_site or vebhost_delete_file.

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