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

Since no annotations are provided, the description carries the full burden of behavioral disclosure. It discloses that the request is asynchronous ('Submits to the provisioning queue'), which is useful. However, it does not mention potential side effects, required permissions, idempotency, or what the response contains. For a mutation-like operation, this is a moderate gap.

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 exceptionally concise and front-loaded. It uses two short sentences to convey the core action and the queue behavior. There is no filler or redundant detail, earning a top score.

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?

The tool is simple (2 parameters, no nested objects, no output schema), and the description covers the primary action. However, because there is no output schema, the description should ideally indicate what the caller receives after submitting (e.g., a request ID or status) and how to follow up. The mention of the provisioning queue hints at next steps but does not explicitly guide the agent on subsequent status checking, leaving some ambiguity.

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 input schema already provides descriptions for both parameters with 100% coverage, so the baseline is 3. The tool description adds no additional parameter semantics beyond what the schema provides. It does not explain how email_domain or account_id are used in the request, but this is not required given the high schema coverage.

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 states a specific action: 'Request a dedicated WireGuard IP for email sending.' It identifies the resource (dedicated WireGuard IP), the purpose (email sending), and the mechanism (submits to provisioning queue). This distinguishes it from sibling tools like provision_start or check_ip_status, which either manage provisioning generally or check IP status.

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 usage context ('Request a dedicated WireGuard IP for email sending') and mentions the provisioning queue, but it does not explicitly state when to use this tool versus alternatives such as provision_start, provision_status, or check_ip_status. No exclusions or alternative tool references are provided, so the agent must infer when this tool is appropriate.

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