dns_create_record

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

No annotations are provided, so the description bears the full burden of behavioral disclosure. It only states that a record is created, but does not mention idempotency, duplicate handling, propagation time, whether existing records are affected, or authorization requirements. For a mutating tool this is a significant gap.

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, focused sentence that front-loads the core action and resource. Every word earns its place and there is no redundant scaffolding.

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?

The schema fully documents all five parameters, and the purpose is clear. However, the tool is a mutation with no annotations and no output schema, so an agent is left without guidance on expected return values, failure modes, or side effects. It is minimally sufficient but not complete.

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 description adds only the record-type examples, which largely overlap with the schema's own examples. It does not add meaningful semantics beyond the schema.

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 ('创建') and resource ('为指定域名创建一条解析记录'), and gives concrete record types (A/CNAME/TXT/MX). This makes it clearly distinct from sibling tools like dns_delete_record, dns_list_records, and dns_list_domains.

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 word '创建' implies the tool is for adding a DNS record, and siblings like dns_delete_record and dns_list_records provide contrast. However, the description does not explicitly state when to use this tool versus alternatives, nor mention any prerequisites or restrictions.

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