mailkite_get_domain

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

The annotations already include readOnlyHint=true, so the read-only nature is covered. The description adds the requirement of a management session token and states that the tool returns DNS records and webhook, which are useful behavioral details not present in the annotation. However, it does not discuss error cases, rate limits, or other side-effect-free behaviors beyond what is implied by the annotation.

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 a single sentence that front-loads the core purpose ('Get one domain with DNS records + webhook') and then adds the essential token requirement. Every word is informative, with no redundancy or filler. It is appropriately concise for a simple get operation.

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 single-id get operation with no output schema, the description covers the essential information: what it does and what it returns. It also mentions the token requirement which is a key context for invocation. It does not mention error handling or edge cases, but these are not critical for a basic read operation when annotations already indicate safety. Overall, it is sufficiently complete for an agent to call it correctly.

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 provides 100% coverage for the single parameter 'id' with description 'Path parameter `id`.' This is minimal and essentially just names it as a path parameter. The tool description does not add any further meaning or context about the id (e.g., format, where to find it, or its role). Since schema coverage is high, the baseline is 3, and the description adds no extra semantic value.

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 specifies the action 'Get' and the resource 'one domain', and explicitly states what is returned: 'DNS records + webhook'. This differentiates it from sibling tools like mailkite_list_domains (plural) and other domain operations, making the purpose 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?

The description does not provide any guidance on when to use this tool versus alternatives such as mailkite_list_domains or mailkite_get_sequence. It only notes a prerequisite (management session token), but no explicit when-to-use/when-not-to-use conditions or mention of sibling tools that might be preferred in certain situations.

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