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

Annotations declare readOnlyHint=true, so the safety profile is covered; the description adds beyond that by disclosing the returned columns and the business-hours vs non-business-hours timing distinction, plus the keyset-pagination behavior for large accounts. It does not mention rate limits or result caps, so it is not fully exhaustive.

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 dense sentences, front-loaded with what the report returns before filters, sorting, and pagination. Efficient, though the filter list is somewhat run-on and the endpoint suffix adds little for an agent.

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 15 optional parameters, no output schema, and only a readOnlyHint annotation, the description compensates well by naming the returned columns and the pagination strategy. It is close to complete, missing only edge details like maximum page size or date-range pairing constraints beyond what the schema states.

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 every parameter is already documented, including the 'give it together with its pair' date-pairing rule and the keyset-cursor explanation. The description largely restates the filter/sort surface provided by the schema, so the baseline 3 is appropriate.

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 and resource ('Per-ticket reporting rows') and enumerates the returned dimensions (status, assignee, labels, first reply, first/first-resolution/total resolution times). The phrase 'Per-ticket reporting rows' cleanly distinguishes it from sibling aggregate tools like trengo_get_reporting_metrics and trengo_get_agent_performance.

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 real operating context: which filters are available, that you sort by a timing metric, and specifically that huge accounts should page with start_after_ticket_id instead of page. It stops short of naming sibling tools or stating when this report is the wrong choice versus the metrics/agent-performance reports.

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