Create DNS record

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

Annotations include destructiveHint=false, idempotentHint=false, openWorldHint=true. The description adds value by noting that the response includes a 'resolved_domain' in ASCII format, which is beyond the schema. However, it does not detail other behavioral aspects like validation or error conditions.

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 two sentences long, front-loads the primary purpose and supported types, and includes a specific response detail. No extraneous information.

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?

Given the complexity (6 parameters, 4 required, no output schema), the description is adequate but could mention potential conflicts (e.g., duplicate records) or propagation behavior. The presence of sibling tools partially compensates.

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%, so each parameter is already documented. The tool description does not add new semantic information about parameters beyond listing types. Baseline score of 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?

The description clearly states that the tool creates a new DNS record and lists the supported record types (A/AAAA/CNAME/MX/TXT/SRV/CAA). It distinguishes from sibling tools like delete_dns_record and update_dns_record by focusing on creation.

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 implies usage for adding a new DNS record but does not explicitly state when to use it versus alternatives (e.g., update_dns_record for modifications, delete_dns_record for removal). No when-not or exclusion guidance is provided.

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