cisco_umbrella_get_activity_dns

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It correctly implies a read operation via 'List' and includes details on pagination (limit, offset), but it does not disclose potential side effects, rate limits, or authentication requirements. The API endpoint is provided, adding some 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?

The description is well-structured as a docstring with a one-line summary, followed by the API endpoint and a formatted list of arguments. Every parameter earns its place, and the content is front-loaded with the core purpose. It is appropriately concise for a tool with 10 parameters.

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 the tool's complexity (10 parameters, output schema present), the description is nearly complete. It covers all parameters, clarifies required fields, and notes timezone handling. It does not explain the response structure, but the output schema likely covers that. Minor gap: no mention of error handling or boundary behaviors.

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 descriptions are absent (0% coverage), so the description fully compensates by explaining each parameter's format and purpose. It clarifies time formats, defaults (limit 100), and filter types (domains, categories, verdict, etc.), providing clear semantics beyond the schema.

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 opens with 'List DNS activity events,' which is a specific verb and resource that clearly identifies the tool's purpose. The name and API endpoint further specify DNS activity, distinguishing it from sibling tools like proxy, firewall, and AMP retrospective activity.

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 DNS activity events, but it does not explicitly state when to choose this tool over the sibling activity tools (e.g., proxy, firewall). No alternative tools are mentioned, so the guidance is implied rather than explicit.

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