Reply to a ticket

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

Annotations already provide idempotentHint=true and destructiveHint=false. The description adds valuable context beyond annotations by clarifying that the reply is a 'local mock' and that it either waits for the user or closes the ticket. No contradictions with annotations.

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 is front-loaded and free of filler. Every word contributes to conveying the tool's purpose and behavior.

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 the presence of an output schema and simple parameters, the description is mostly adequate. However, the lack of parameter-level guidance—especially for idempotency_key—and the ambiguous 'local mock' phrase leave room for misinterpretation about whether the reply is actually sent or only stored locally.

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?

With 0% schema description coverage, the description must compensate. It hints at the close_ticket behavior ('or close the ticket') and implicitly references message/ticket_id, but it completely omits idempotency_key. The required idempotency_key's purpose and constraints are left unexplained, which is a significant gap for a required parameter.

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 specific action ('Add a local mock reply') and resource ('to a ticket'), distinguishing it from sibling tools like tickets_list_new or tickets_change_status. The wait-or-close behavior further differentiates this tool's scope.

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 when replying to a ticket, but does not explicitly state when to use this tool versus alternatives such as tickets_change_status or tickets_update_classification. No exclusions or alternative references are provided.

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