Set Auto-Renew

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

Warns about the risk of losing the domain when disabling auto-renewal, which adds critical context beyond annotations. Does not contradict any annotation (destructiveHint false refers to immediate destruction, not future risk).

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?

Extremely concise: two sentences, first states the action, second provides critical warning. No wasted words.

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?

Adequately covers the primary behavioral risk and usage context for a simple toggle tool. Lacks details on return value or error conditions, but these are not essential given the tool's simplicity.

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?

Both parameters are fully described in the input schema (100% coverage). The description adds no further parameter details, but the schema is sufficient.

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?

Clearly states the action (enable/disable) and resource (auto-renewal for a domain). Distinguishes itself from sibling tools, none of which perform this function.

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 instructs to confirm with user before disabling, providing a clear when-to-use and when-not-to-use guideline. No alternative tool needed for this specific operation.

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