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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint and destructiveHint=false, so the safety profile is fully covered externally. The description adds only that filtering/sorting/pagination are supported and that an array of records is returned, which is behaviorally thin; no rate limits, ordering defaults, or scope caveats are disclosed.

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?

Three short, front-loaded sentences; the core operation leads and supporting filters follow. The sentence 'Returns an array of notification records' is partly redundant given the output schema exists, which is the only wasted phrasing.

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 zero-required-parameter read-only list tool with full annotations, an output schema, and a documented subset of parameters, the description covers enough to invoke it correctly. The remaining gap is that sort/order semantics and the meaning of notification scope are left entirely to inference.

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 60% - limit, offset, and updated_gte are documented in the schema, while sort and order (both enums) have no descriptions anywhere. The description merely enumerates the same parameter names without explaining sort semantics or default ordering, so it adds little beyond the schema.

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 states a specific verb+resource ('List notifications from the connected account') and scopes the source of the data, so an agent knows what it retrieves. It does not, however, distinguish this tool from the many other list_unified_* siblings, so the differentiating dimension is missing.

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?

'Use to browse or search many notifications' gives implied usage context, which is better than nothing. It names no alternative tool, no condition for preferring paging vs. filtering, and no exclusions, so guidance stops at the implied level.

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