ncloud_dns_update_records

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

Annotations already indicate idempotentHint=true and destructiveHint=false, so the description adds no additional behavioral context. It does not contradict annotations. Acknowledges the update nature but doesn't explain side effects like whether existing records not in the array remain unchanged.

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?

Single sentence, very concise, no wasted words. However, it is perhaps too brief; could incorporate more essential info without becoming wordy.

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 schema covering parameters, the description is incomplete for the tool's complexity. It does not explain the update semantics (replace vs modify individual records), nor the impact on existing records. No output schema, so return values are unknown. The annotation idempotent is not explained in context.

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?

Input schema covers 100% of parameters with descriptions, so baseline is 3. The description does not add any parameter-level meaning beyond what the schema provides, e.g., no explanation of the records array structure or relationship to domainId.

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?

Description clearly states 'Update DNS records for a specific Global DNS domain', indicating a modification operation on DNS records for a domain. It distinguishes from sibling tools like create_records and delete_records, but could be more specific about the 'Global DNS' context.

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?

No guidance on when to use this tool versus creating or deleting records, or any prerequisites like domain existence. Alternatives are not mentioned.

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