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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds meaningful context beyond that: the workspace-owner authorization requirement and the returned content (rule types and notification destinations). It does not cover pagination or empty-result behavior.

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?

One front-loaded sentence with a compact enumeration of rule types and notification destinations. Every clause adds information; there is no filler.

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?

With no parameters and no output schema, the description supplies enough for an agent to know the resource, workspace scope, authorization constraint, and approximate return content. It could mention pagination or the exact representation of notification targets, but the core call is clear.

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?

This tool has zero parameters, so the baseline is 4 and there is no parameter semantics to explain. The description appropriately adds no parameter detail and instead focuses on resource scope and returned content.

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 ('the workspace's alert rules'), enumerates the rule types, and says the result includes where notifications go. It is clear without opening the schema, though it does not explicitly distinguish itself from sibling tools such as list_alert_events or the alert-rule CRUD operations.

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?

Includes the access precondition 'Workspace owners only,' which is useful context. However, it does not explain when to use this tool rather than list_alert_events or create/update/delete_alert_rule; usage is implied by the verb and resource.

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