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

Annotations already declare readOnlyHint=true, so safety is covered. The description adds genuinely useful behavioral context beyond that: the kinds of alerts surfaced and the fields each record carries (severity, device, customer, linked ticket), which matters because there is no output schema.

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?

Front-loaded with the core verb+resource and kept to essentially one sentence plus an endpoint reference; no filler. The parenthetical field listing is slightly clipped but does not harm readability.

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 simple 3-parameter read-only list tool with full schema coverage, the description covers purpose, returned fields, filtering and the underlying endpoint. It omits pagination behavior and permission requirements, but those 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 100%, so page, items_in_page and alert_status are already documented with defaults, ranges and an enum. The description only echoes the status filter and adds no syntax or format detail, so the baseline 3 applies.

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 ('List') and resource ('monitoring alerts'), plus enumerates the alert domains (disk, CPU, availability, hardware) and returned fields. An agent can immediately distinguish this read operation from the sibling atera_resolve_alert mutation.

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?

'Filter by status' implies the tool's usage context, but there is no explicit when-to-use/when-not guidance and no mention of the alternative atera_resolve_alert for acting on an alert. Usage is inferable from the name but not spelled out.

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