add_ticket_comment_tool

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

With no annotations provided, the description carries the full burden. It discloses the action (adding a private comment) and the return (confirmation message), but doesn't mention side effects like whether the ticket status changes, permissions required, or reversibility. For a simple mutation tool this is adequate but not rich.

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 compact and front-loaded: the first line states the purpose, followed by clearly formatted Args and Returns sections. Every sentence adds necessary information with no 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?

For a tool with only two simple parameters and an output schema, the description provides enough context to use it correctly. It doesn't address error cases or prerequisites (e.g., ticket must exist), but those are likely self-evident for a ticket-comment tool. The explicit privacy note covers the main distinction from siblings.

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. The Args section provides plain-English meanings for both 'ticket_id' and 'comment', which adds value beyond the bare schema. It does not specify additional constraints like length or format, but covers the basics.

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 'Add a private comment/note to a ticket (not visible to requestor),' which identifies the exact action and resource. The parenthetical explicitly differentiates it from reply_to_ticket_tool and other ticket updates, making its purpose 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?

The 'not visible to requestor' caveat gives clear context for when to use this tool versus reply_to_ticket_tool, implying it's for internal notes. However, it doesn't explicitly name alternatives or state when not to use it, so it falls short of a 5.

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