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

No annotations are provided, so the description carries the full behavioral burden. It discloses the auth requirement ('Requires: token'), which is a small credit, but says nothing about visibility of the reply (customer-facing vs internal note), notification side effects, or whether the ticket must be open. For a write operation with zero annotation coverage this is thin.

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?

Two short sentences, zero waste, with the core action front-loaded and constraints following. Nothing is padded or repeated.

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?

A mutation tool with no annotations, no output schema, and 0% parameter description coverage. The description omits what success/failure looks like, whether an open ticket is required, and the nature of the reply — gaps an agent would need to guess at.

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 0%, so the description must compensate. It explains where ticket_code comes from (create_ticket / list_tickets / list_tickets), adding real meaning, but the message parameter (format, length, whether markdown is allowed) is left entirely undocumented.

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?

States a specific verb+resource ('Post a reply on one of your tickets'), which is clearly distinct from siblings like get_ticket, close_ticket, and create_ticket. It does not explicitly name those siblings as alternatives, but the action is unambiguous.

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?

'Use the ticket code from create_ticket / list_tickets' tells the agent where the required identifier comes from, which is genuinely useful routing. However, there is no when-to-use vs when-not guidance (e.g., replying to a closed ticket, or reply vs. close), so usage is only implied.

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