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

The description discloses that deletion is permanent and that any authenticated user can perform it. However, it does not mention idempotency, error behavior, or consequences beyond permanence. With no annotations, this is moderate disclosure.

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 concise segments with no wasted words. The 'WRITE' prefix efficiently flags operation type while the main sentence states the action.

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 one-parameter delete tool, the description covers the action, permanence, and access. It omits return value or error handling, but given simplicity and no output schema, it is reasonably complete.

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?

Input schema covers ruleId with type and description, and the description adds no extra parameter detail beyond referencing 'alert rule.' Schema coverage is 100%, so baseline 3 is appropriate.

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?

Description clearly states 'Permanently delete an alert rule' with a specific verb and resource. It distinguishes from sibling tools like delete_ignore_rule and save_alert_rule.

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?

No when-to-use or alternative guidance is provided. The 'WRITE: available to any authenticated user' note addresses access but not when to choose this over set_alert_rule_status or save_alert_rule.

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