get_ddns_status

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

With no annotations provided, the description bears full responsibility for behavioral disclosure. It clearly indicates a read-only operation ('Get… status') and outlines the returned data, effectively communicating the tool's safe, non-destructive nature. No additional behavioral traits (e.g., authentication, rate limits) are needed for this simple query.

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, using a single sentence to convey the tool's purpose and output. It is front-loaded with the core action and resource, with every word contributing to clarity. No unnecessary information is present.

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?

For a simple tool with no parameters and an output schema, the description is complete. It succinctly states what the tool returns, and the existence of the output schema obviates the need to detail return values. The description sufficiently covers the tool's functionality.

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 input schema has zero parameters, so the description does not need to elaborate on parameters. According to the guidelines, when there are no parameters, the baseline score is 4. The description adds no parameter information, which is appropriate.

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 identifies the tool as retrieving DDNS status, specifying the exact information returned: configured services, domain, and update status. The verb is specific ('Get'), and the resource is well-defined (DDNS status), distinguishing it from sibling tools that focus on other areas like network, system, or security.

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 implies usage for obtaining DDNS information but provides no explicit guidance on when to use this tool versus alternatives. It does not mention when not to use it or suggest alternative tools for related tasks, leaving the agent to infer based on the name alone.

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