get_domain_records

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

With no annotations provided, the description carries the full burden. It usefully discloses that the tool re-fetches the same DNS record set originally returned at creation and that records remain available later. However, it does not mention output format, errors, or rate limits, which would add further transparency.

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 a single, efficient sentence that front-loads the core purpose and then adds the key usage nuance. Every clause earns its place with no filler or repetition.

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, no-output-schema retrieval tool, the description is largely complete: it explains what the tool does, when to use it, and how the result relates to creation-time data. Minor gaps like explicit response formatting are not critical for correct tool selection and invocation.

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%; the single 'domain' parameter is already documented with an example ('example.com'). The description adds no additional parameter-level meaning, but none is needed because the schema fully covers it.

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?

The description states a specific verb and resource: re-fetch DNS records for an already-registered domain. It also distinguishes this from the one-time receipt of records at creation, making the tool's purpose unambiguous relative to create_domain.

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 gives explicit timing guidance: use it any time after creation, implying the records are not only available once. It does not explicitly name alternative tools for exclusion, but the context is clear enough for a simple retrieval operation.

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