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

The readOnlyHint annotation already tells the agent this is a safe read operation, so the description's main behavioral addition is the 'up/down transitions' scope and the default 30-day window. It does not disclose response structure, pagination behavior, or any limits beyond the schema defaults. This is acceptable for a simple read-only list tool but not richly transparent.

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 two compact sentences with no filler. It front-loads the core purpose and then adds the default behavior. Every sentence earns its place.

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 list tool with four documented optional parameters and a read-only annotation, the description is mostly adequate. However, there is no output schema and the description does not mention pagination, result ordering, or what fields each alert notification contains. Sibling differentiation guidance is also missing, leaving some context gaps for an agent choosing among related tools.

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 the parameters are already fully documented in the schema. The description adds minimal parameter-level meaning beyond clarifying the alert domain. This matches the baseline of 3 for tools where the schema handles parameter documentation.

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 clearly states the tool returns alert notifications (up/down transitions) over a date range. This distinguishes it from sibling tools like list_outages or get_monitor_outages by emphasizing notifications rather than raw outage records. The title and description together make the resource and action unambiguous.

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?

The description gives useful context by defining the resource and the default date range, so an agent can infer when it might apply. However, it does not explicitly state when to use this tool versus alternatives such as get_monitor_outages or list_outages, nor does it mention exclusions. Usage is implied rather than explicitly guided.

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