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

Annotations cover non-readonly and non-destructive, so the safety profile is largely set. The description adds only the ownership constraint ('eigenes'), which is useful behavioral context but limited; it does not mention side effects, notifications, or state changes to the ticket status.

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, front-loaded sentence that names verb and resource with no filler.

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?

With only one sentence and a rich schema, the definition is functional but thin: it omits workflow context (where ticket_id comes from, whether a reply changes ticket status, that close_support_ticket exists). Adequate to invoke, but not complete for correct routing.

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 both parameters are fully documented in the schema, including the precise byte-limit behavior and the get_support_tickets reference. The description itself adds no parameter meaning, so the baseline 3 applies.

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+resource ('Antwort auf ... Support-Ticket' senden), making the action clear. It is however in German while sibling tools and the schema are in English/German mix, and it does not name create_support_ticket or close_support_ticket to differentiate the action beyond the verb.

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 phrase 'bestehendes eigenes Support-Ticket' implies a precondition (ticket must already exist and belong to the user), which gives minimal usage guidance. There is no explicit when-to-use vs. create_support_ticket or close_support_ticket, and no note that ticket_id must come from get_support_tickets.

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