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 no behavioral context beyond enumerating fields that the output schema likely already documents—nothing about pagination, scope, or what is returned.

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 and front-loads the resource name, but it is a field list rather than a purpose statement. It wastes its only content duplicating output fields instead of stating what the tool does, leaving it concise but under-specified.

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 zero parameters and an output schema present, the description needed only to state that this lists maintenance windows and clarify scope. Instead it spends its entire text on output-field names, so an agent gets no explicit indication of the tool's listing behavior or any filtering constraints.

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 tool has zero input parameters, so there is no parameter semantics to explain. The baseline for a zero-parameter tool is 4, and nothing in the description contradicts or undermines that.

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 the resource (maintenance windows) and enumerates its fields, but never states a verb or action such as 'list' or 'retrieve'. It effectively restates the tool name and output fields rather than articulating a distinct purpose, and gives no basis for distinguishing it from sibling list tools.

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 like get_incident or list_checks, nor any note about scope, filtering, or prerequisites. The description provides no usage context at all.

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