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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds real value beyond that by disclosing the return content in detail and noting the trailing 'Free' cost signal, which is not encoded anywhere in structured fields; it stops short of saying whether data is live or cached and whether figures are scoped per agent/inbox.

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 single sentence is well front-loaded with the time window before the metric list, and every metric named is informative. However, it is a dense run-on, and the duplicated 'Free. Free.' is an obvious redundant artifact that costs it a point.

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 one-parameter, read-only report tool with no output schema, the description does the essential work of enumerating the returned metrics and giving the default window. Missing pieces such as data freshness, timezone handling, and any per-agent/per-inbox scoping are minor for this complexity level.

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 carry the load for the single `days` parameter. It names the parameter and restates the default of 30, which gives the agent the window semantics, but it omits the 1-365 bounds and whether days are calendar days or rolling, so it only partially compensates for the schema gap.

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 names a specific resource (support tickets) and enumerates exactly what the report contains: opened/resolved counts, backlog breakdown, first-response and resolution times, SLA met/breached, satisfaction, and channel/priority/tag distributions. That enumeration makes it clearly distinguishable from ticket_list or ticket_get, which return raw tickets rather than aggregates.

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 explicit statement about when to prefer this over ticket_list, ticket_get, or ticket_get_settings, and no exclusions or prerequisites. Usage is only implied by the word 'report' and the metric list, so the agent must infer that this is the analytics/summary entry point.

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