npm_list_dns_providers

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

No annotations are provided, so the description carries the full burden. 'List supported' implies a read-only, paginated-free enumeration of a static set, which is useful, but nothing is said about the response shape, whether the list is static or dynamic, or what identifier format is returned for use in a DNS challenge configuration.

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 phrase with no filler, hedging, or redundancy. Every word (list, supported, DNS providers, DNS challenge certificates) carries meaning.

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?

There is no output schema and no annotations, so the description is the only source of truth, yet it does not explain what the returned values are or how they should be used in a certificate DNS challenge setup. For a zero-parameter tool this is minimally adequate but leaves the return contract implicit.

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?

The tool takes zero parameters, so there is no parameter semantics to document and the baseline of 4 applies. The description correctly avoids inventing any input behavior.

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 gives a specific verb (List) and resource (supported DNS providers) plus a scope qualifier (for DNS challenge certificates), which is enough to distinguish it from generic siblings like npm_list_settings. However, it does not name or contrast with any related sibling such as npm_create_certificate or npm_list_certificates where the provider list would be consumed.

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 explicit when-to-use statement, no prerequisite, and no mention of alternatives. An agent can infer it is relevant when configuring DNS challenge certificates, but the description never states that linkage or any condition under which it should be called instead of other list tools.

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