Validate DNS Records

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

With no annotations, the description must carry full behavioral disclosure. It implies validation is a pre-application step (likely read-only), but does not state whether records are modified, if external DNS lookups are performed, how invalid records are handled, or any side effects. This is a significant gap for a tool that could have complex behavior.

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 sentence that is concise but severely under-specified. It communicates one key point but lacks any structured information such as return behavior, examples, or prerequisites. This is under-specification rather than effective conciseness, as it leaves the agent without necessary context.

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?

Despite having a moderately complex schema (array of nested record objects) and no output schema or annotations, the description offers minimal context. It does not explain what validation means, what the tool returns, or how it relates to other DNS operations like dns_update_records or dns_delete_records. This is incomplete for an agent to invoke the tool correctly.

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?

The input schema provides 100% coverage of parameter descriptions, including nested fields for records (type, name, value, ttl, priority). The description adds no additional parameter semantics, so it remains at the baseline for high schema coverage.

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 uses the specific verb 'validate' with the resource 'DNS records' and adds context 'before applying them', which distinguishes it from siblings like dns_get_records or dns_update_records. However, the exact nature of validation (syntax, propagation, existence) is not specified, leaving some 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 phrase 'before applying them' implies the tool should be used as a pre-application check, but there is no explicit guidance on when to use it versus alternatives, nor any mention of when not to use it. It does not reference sibling tools or specific application scenarios like update, delete, or reset.

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