gmb_notifications_accounts_updatenotificationsetting

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

Annotations already convey readOnlyHint=false, destructiveHint=false, and idempotentHint=true. The description adds valuable transparency about the singleton resource, the one-topic limit, and the delete-by-empty-list behavior, which goes beyond the annotations and helps the agent predict side effects. It does not cover rate limits or authorization details, but the schema's pubsubTopic parameter mentions the required permissions.

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 three sentences long, starts with the HTTP method, and every sentence provides actionable information. There is no filler or repetition of schema details. It efficiently covers purpose, manipulation, constraints, and deletion semantics.

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?

Given the complexity (7 parameters, nested body, no output schema), the description covers the core workflow well: setting, manipulating, and deleting the notification setting. It does not describe the response shape, but for an update operation that is often not critical. The absence of an output schema and the presence of a sibling get tool make this acceptable.

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 parameters are already well documented. The description adds semantic context by explaining the relationship between notification_types and the pubsub topic, and clarifies that an empty array deletes the setting. This goes beyond the raw schema descriptions and helps the agent understand how parameters interact.

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's function: 'Sets the pubsub notification setting for the account informing Google which topic to send pubsub notifications for.' It uses a specific verb ('Sets') and resource ('pubsub notification setting'), and the PATCH method is indicated upfront. This distinguishes it clearly from the sibling get tool.

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 provides practical usage guidance: 'Use the notification_types field within notification_setting to manipulate the events an account wants to subscribe to' and explains the singleton nature ('only one notification setting resource'). It also explains how to delete by updating with an empty notification_types. However, it doesn't explicitly contrast with the get tool or list when not to use it, so a small gap remains.

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