Update Auto Renew

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

Annotations already declare destructiveHint=true and idempotentHint=true; the description adds genuine consequence detail by explaining that auto-renew charges account credit at expiration and that turning it off risks domain expiration. The one-word 'Idempotent.' sentence merely repeats the annotation, which slightly dilutes the added value.

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?

Front-loaded with the core action, followed by two short sentences explaining the on/off consequences. Well-sized for the tool, though the trailing 'Idempotent.' restates an annotation rather than earning its own sentence.

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 two-parameter mutation tool with no output schema, annotations covering safety/idempotency, and full schema coverage, the description supplies the key missing piece: the real-world consequence of each state. Only the absence of routing guidance toward renew_domain keeps it from being 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?

Schema description coverage is 100% and both parameters (domain, status enum) are fully documented in the schema, so the baseline of 3 applies. The description adds no syntax or format information beyond what the schema already provides.

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 and resource: toggling auto-renewal for a named domain in the authenticated account. It is clearly distinct from renew_domain in spirit (setting a flag vs. performing a renewal), though it never names that sibling explicitly to remove ambiguity.

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 explains what happens when the flag is on vs. off, which implies the use case, but it never states when to choose this tool over alternatives such as renew_domain for an immediate manual renewal. Usage is suggested rather than directed.

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