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

Annotations already declare readOnlyHint and idempotentHint, so safety is covered. The description adds valuable behavioral context: alerts are merged and time-sorted, limited to operational alert types (errored crawl runs, failed webhook deliveries), and the tool is a legacy alias. It also mentions the account/signup requirement, which goes beyond the annotations. No contradiction.

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 dense but every clause earns its place: legacy alias status, exact alert types, sorting/merge behavior, distinction from alert_list, metering note, and signup context. It front-loads the most important disambiguation cues and uses punctuation to keep it scannable.

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 single-parameter read-only tool with no output schema, the description covers what alerts are included, how they are ordered, what they are not (user alerts), metering status, and account requirement. An agent has enough to select and invoke the tool correctly without opening the schema.

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 coverage is 100% and the only parameter (limit) is fully documented with range and default. The description doesn't add parameter-specific detail beyond the schema, so the baseline 3 applies.

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 ('Read') and resource ('recent OPERATIONAL alerts — Prowlo's own failures'), and immediately distinguishes itself from the user's configured Alerts by naming alert_list. The description also clarifies it is a legacy alias for get_operational_alerts, so an agent knows exactly what this tool does even before reading its sibling's definition.

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?

Explicitly says when NOT to use it ('NOT the user's configured Alerts') and names the alternative (alert_list). Also notes it is not metered.skip inviting an account-related call (

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