Tạo webhook email

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

With no annotations provided, the description carries the full burden. It discloses meaningful behavior: the webhook must be HTTPS, the secret should be saved once to .env, and it must not be logged. However, it does not mention what the response contains, whether it replaces existing webhooks, or any side effects, leaving gaps.

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 two sentences and reasonably concise. The English summary somewhat repeats the Vietnamese core idea, but the Vietnamese portion adds unique details about secret handling and HTTPS, so every sentence earns its place overall.

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?

Despite having no output schema and no annotations, the description covers the essential purpose and a key operational caveat (secret storage). It omits other useful context such as the expected response, idempotency behavior, and how to verify the webhook later, making it adequate but not complete.

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 low at 33%, so the description must compensate. It adds meaning to the url parameter by requiring HTTPS and hints at the events parameter with 'gửi hoặc bounce' (send or bounce). It does not explain idempotency_key beyond the schema's own description, so compensation is partial.

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 the tool's function: 'Use to subscribe an app to email events' and 'đăng ký HTTPS webhook' (register an HTTPS webhook) when the app needs to receive send or bounce events. The verb 'subscribe' and 'create' in the name distinguish it from list/test siblings, though the description does not explicitly name them.

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 Vietnamese clause 'Khi app cần nhận sự kiện gửi hoặc bounce' provides a clear condition for when to use the tool. However, it does not mention alternatives such as mail_webhooks_list or mail_webhook_test, nor any when-not-to-use guidance, so it stops short of a 5.

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