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

Annotations already declare readOnlyHint=true, so the safety profile is covered. The description adds the account-wide reach and the underlying REST endpoint, but says nothing about ordering, pagination behavior (despite page/limit params), or the volume/recency window implied by 'recent'.

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?

Two short sentences, front-loaded with the purpose and scope. The API path sentence is marginally useful for debugging and does not bloat the description.

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 read-only list tool with zero required params and no nested structure, the description covers purpose, scope, and endpoint. With no output schema, a brief note on what an alert record contains would be nice but is not essential for correct invocation.

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 from/to/page/limit are already documented in the schema. The description adds no parameter detail (e.g., format constraints, default page size, how from/to interact), 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 (alert notifications) plus the scope ('fired across the whole account'), which lets an agent distinguish it from the per-check sibling checkly_get_check_alerts. It stops short of naming that sibling explicitly, but the account-wide scope is clearly conveyed.

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 phrase 'across the whole account' implies when this is appropriate versus the singular get_check_alerts, but there is no explicit when-to-use/when-not or named alternative. Usage is inferable rather than stated.

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