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

Annotations already declare readOnlyHint=false and destructiveHint=false, so the write nature is known. The description adds genuinely non-structured behavior: the comment is posted under the user's identity and is visible to the whole team, which is the key risk an agent must convey before acting. It stops short of saying whether comments can be edited or deleted after posting.

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 sentences, zero waste, and the action is front-loaded ahead of the safety instruction. Every clause carries information the agent needs.

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 four-parameter write tool with no output schema and annotations covering the safety profile, the description covers identity, audience, and the confirmation gate. The only gap is which identifier combination to use per platform, which the schema partially handles.

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 coverage is 75% and ticket_id, account_id, and conversation_id are already documented as coming from list_tickets. The description only implicitly clarifies that 'text' is the comment body and reinforces that its contents become team-visible; it adds no guidance on when to supply conversation_id versus ticket_id + account_id.

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?

Specific verb ('Post a comment') plus specific resource ('Jira/ClickUp ticket'), with the explicit attribution qualifier 'as the user'. An agent can distinguish this from update_ticket (edits the ticket) and send_message (chat messaging) without opening any schema.

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?

Gives a concrete pre-invocation workflow: show the exact text to the user and get confirmation before calling. That is clear usage context, but it never references the alternative tools (update_ticket for edits, send_message for chat) or states when not to comment.

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