Изменение почтовой информации о домене

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

Annotations already indicate this is a mutating but non-destructive operation. The description adds no further behavioral context, such as overwriting existing catch-all settings, response format, or validation checks. Thus it provides minimal value 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?

A single, focused sentence that is front-loaded and contains no filler. It clearly states the action and target without unnecessary words.

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 simple two-parameter mutation tool with complete schema descriptions and annotations, the description is sufficient to understand the basic operation. However, it omits any mention of return values or side effects, though openWorldHint=true might warrant additional caveats. Overall, adequately complete for basic use.

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 coverage is 100%, with clear descriptions for both required parameters (domain and email). The tool description restates what 'email' does but adds no new semantic context beyond the schema.

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 uses a specific verb 'Меняет' (changes) and identifies the exact resource: the catch-all address for emails to non-existent mailboxes in a domain. This clearly distinguishes it from siblings like update_mailbox or get_mail_domain_info.

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?

The description implies the tool is used to configure the domain's catch-all address, but it doesn't explicitly state when to use this over related tools (e.g., update_mailbox) or mention prerequisites like domain ownership. No alternatives or exclusions are mentioned.

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