Billing Notifications

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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safe-read behavior is covered structurally. The description adds account scoping but does not mention pagination, sorting, notification state, or rate limits. With annotations covering the safety profile, this is adequate but not rich.

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?

A single declarative sentence that is front-loaded with the core action and object. There is no filler, repetition of schema fields, or redundant explanation of annotations.

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 low-complexity read tool with an output schema and safety annotations, the description states the core purpose and scope. However, it omits any relation to sibling billing tools or what kind of notifications are included, leaving some ambiguity about when an agent should invoke it.

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 description does not discuss parameters, but the schema already documents baseUrl, profile, and frontendUrl (75% coverage). The one undocumented parameter, limit, is reasonably inferable from its name and default. The description adds no parameter-level meaning and does not compensate for the limit gap, but schema coverage is strong enough.

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 ('Return'), a concrete resource ('billing notifications'), and a scope ('for the authenticated account'). It is semantically distinct from sibling billing tools such as billing_usage, billing_ledger, and billing_invoices by naming notifications explicitly.

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 billing_usage or billing_ledger, no prerequisites, and no exclusions. The phrase 'for the authenticated account' provides scope but not usage context.

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