ncloud_sens_cancel_alimtalk_reservation

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

Annotations already declare destructiveHint=true and idempotentHint=true, and the description adds crucial behavior beyond that: the confirm=true guard, the destructive warning, and the HTTP DELETE method with 204 response. This tells the agent the operation is destructive, requires explicit confirmation, and succeeds silently.

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, information-dense sentence with the destructive warning front-loaded, followed by the endpoint and execution requirement. Every word earns its place; there is no filler or redundancy.

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 description covers the essential operational details: the destructive nature, the confirm flag needed to execute, the HTTP endpoint, the 204 status, and how to locate serviceId via a named sibling tool. With annotations covering safety/idempotency and no output schema, nothing critical is missing.

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 100%, so the baseline is 3. The description repeats the confirm=true requirement already in the schema but does not add extra meaning beyond what the parameter descriptions already provide. No additional parameter semantics are introduced in the prose.

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 a specific verb and resource: 'Cancel a scheduled Alim Talk request before it is sent', which clearly distinguishes this from related SENS tools like ncloud_sens_get_alimtalk_reservation_status and ncloud_sens_cancel_sms_reservation. The HTTP endpoint and 204 response further pin down exactly what the tool does.

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 clear context: cancel before sending, and warns that confirm=true is required to actually execute. It also tells the agent to find serviceId via ncloud_sens_list_projects. However, it does not explicitly contrast with alternatives (e.g., status-checking or SMS cancellation), leaving some routing to inference.

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