configure_dns_server

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

Annotations already declare readOnlyHint=false, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description usefully adds the non-obvious dual behavior — it both toggles the DNS service and creates records in one call — but says nothing about whether existing records are merged or replaced, error behavior on duplicate names, or permission requirements.

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?

A single front-loaded sentence with no filler; the core action and resource come first and every clause earns its place.

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?

An output schema exists, so return values need not be explained, but for a three-parameter mutation tool with low schema coverage the description leaves meaningful gaps: the role of `device`, the off-switch semantics of `enabled`, and how added records interact with existing DNS state.

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 coverage is only 33%, so the description must carry more weight than it does. It clarifies the record types (A, CNAME, NS) matching the enum, but says nothing about the required `device` parameter or that `enabled` can be set to false to switch the service off (description only says 'switch on').

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 names specific verbs (switch on, add) and concrete resources (DNS service, A/CNAME/NS records), so an agent can tell it apart from siblings like configure_dhcp_server. It does not, however, distinguish itself explicitly from set_server_service or configure_host, which operate in the same space.

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?

There is no guidance on when to use this tool versus the very similar set_server_service or configure_dhcp_server siblings, and no stated prerequisites (e.g., whether the device must already exist or the service must be installed). Usage is only implied by the name.

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