Manage DNS Entry

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

Annotations already declare destructiveHint=true and idempotentHint=true. The description adds value by specifying that idempotency is based on name+type and that add returns 'already_exists' for duplicates. It does not mention the confirmationToken flow for destructive actions, which is described in the schema but not reinforced.

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 exceptionally concise, consisting of two sentences that are front-loaded with the main purpose. Every word serves a purpose, and there is no redundancy or filler.

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 description lacks information about return values or success/error responses, which is important for a tool with destructive actions and no output schema. It also does not highlight the conditional required fields for different DNS record types, leaving the agent to infer from the schema alone. Given the moderate complexity (12 params), this is a notable gap.

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 the schema already documents all parameters adequately. The description does not add any additional meaning or context beyond what is in the schema, meeting the baseline expectation.

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 'Add or remove a static DNS entry', providing a specific verb and resource. It distinguishes itself from sibling tools like list_dns_entries and other manage_* tools by focusing solely on DNS entry management.

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 implicitly indicates when to use the tool (to add or remove DNS entries) and does not require differentiation from alternatives since no other tool performs the same function. However, it lacks explicit guidance on prerequisites or alternatives, which would be helpful.

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