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

Annotations already declare readOnlyHint=true, idempotentHint=true, openWorldHint=false, and destructiveHint=false, so the safety profile is covered. The description adds nothing beyond repeating the URL and mentioning describe_operation; it does not disclose what statistics are computed, time ranges, or any filtering behavior.

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 short but wasteful: it repeats the endpoint path twice and then adds an operation ID and a pointer to another tool. No sentence explains the tool's actual behavior or return value, so the structure is not front-loaded with useful information.

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 statistics endpoint with no output schema and two undocumented parameters, the definition should at least state what metrics are returned or what the query/params objects control. It does neither, leaving an agent without enough information to invoke it correctly or interpret its results.

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?

The schema has two optional parameters (a generic 'query' object and a 'params' object) with 0% description coverage, and the description says nothing about their purpose or expected contents. With low coverage and nested objects, the description should compensate but provides no parameter semantics at all.

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 merely restates the endpoint path and title ('GET /api/support/tickets/stats') without a plain-language explanation of what the tool does. It does not distinguish this stats endpoint from sibling tools like get_support_tickets or get_support_feedback_stats beyond the URL.

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?

There is no guidance on when to use this tool versus alternatives, no prerequisites, and no context about what the returned statistics cover. The only meta hint is that describe_operation provides native request schemas, which is about another tool, not usage guidance for this one.

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