dns_set_settings

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

No annotations are provided, so the description carries full burden. It only states 'Update DNS server settings' without disclosing side effects, permissions needed, immediacy of changes, or whether it is destructive. The description is insufficient for behavioral transparency.

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?

Two sentences, each earning its place: first states purpose, second gives usage hint. No fluff or unnecessary words.

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?

Given 8 optional parameters, no output schema, and no annotations, the description is incomplete. It fails to explain return values, validation, error handling, or persistence of changes. The examples include 'recursion' and 'cache' which are not in the schema, potentially causing confusion.

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 100%, so baseline is 3. The description adds value by clarifying that only settings to change should be passed (key/value pairs), implying partial updates. It uses examples like forwarders, blocking, recursion, cache, though some examples don't directly match schema parameters.

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 'Update DNS server settings' and lists examples of settings (forwarders, blocking, recursion, cache). It distinguishes itself from sibling tools by mentioning 'Use dns_get_settings first', implying it is the write counterpart to the read tool.

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 advises to 'Use dns_get_settings first to see current values and available keys,' providing explicit guidance on when to use this tool. However, it lacks mention of when not to use it or alternatives among siblings.

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