create_settings_notifications_email_test

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

Annotations indicate idempotentHint=true and readOnlyHint=false, but the description adds no behavioral context beyond 'test'. It does not state side effects (e.g., sending an email) or how the test is performed. With no annotation coverage for behavioral details, the description carries the full burden but fails to disclose anything significant. No contradiction with annotations, but very little value added.

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 extremely concise, consisting of only three lines: the summary, the endpoint, and the arg explanation. It is well-structured and front-loads the key purpose. Every sentence adds value, and there is no fluff. It could be slightly more detailed, but it is efficiently formatted.

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?

Given that the tool has a single open object parameter and an output schema exists, the description does not need to describe return values. However, it omits critical details such as what a 'test' does (e.g., sends a test email) and any side effects. The instruction to check the GET/schema endpoint is helpful but leaves the agent without a full understanding of the tool's behavior and implications. The description is too sparse for a mutation-like action that may trigger external side effects.

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 for 'body' is an open object with 0% description coverage, making it completely uninformative. The description explicitly instructs the agent to read the matching GET or /schema endpoint to discover expected fields, which actively compensates for the schema gap. This directive provides meaningful guidance and helps the agent construct a valid payload, earning a high score despite not listing fields directly.

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 states 'Test email settings' which is a clear verb+resource indicating the tool's purpose. It distinguishes from sibling *_test tools by specifying 'email' rather than discord, slack, etc. However, it does not elaborate on what 'test' entails (e.g., sending a test email), so it is clear but not fully specific.

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 provides no guidance on when to use this tool versus alternatives. It does not mention that this is for verifying email configuration, nor does it contrast with the many other notification test tools. There is no conditional logic or prerequisite information, leaving the agent to infer usage solely from the name.

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