cisco_umbrella_get_activity_firewall

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

With no annotations, the description carries the full burden. It discloses the API method (GET) and the required time-range parameters, but does not explicitly state safety (e.g., read-only) or discuss behaviors like pagination limits, result ordering, or rate limits. The 'List' verb and GET API imply a non-destructive operation, but this is not spelled out.

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 concise and well-structured. It opens with a one-line purpose, gives the API endpoint, and then lists parameters in a readable format. Every sentence adds value; there is no fluff or redundancy.

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?

The description covers all parameters, required fields, and accepted formats, and an output schema exists so return values need no explanation. It could also mention explicit when-to-use vs. sibling tools, but that falls more under usage guidelines. Overall, it is sufficiently complete for a list operation with good parameter coverage.

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 0% description coverage, so the description is the only source of parameter meaning. It provides detailed semantics for every parameter: accepted time formats for from_/to, default for limit, offset as pagination, and definitions for each filter (identityids, ruleid, verdict, categories, timezone). This fully compensates for the schema's lack of descriptions.

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 starts with 'List network firewall activity events,' which uses a specific verb and resource. It clearly distinguishes itself from sibling tools like get_activity_dns and get_activity_proxy by specifying 'firewall.'

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 that this tool is for firewall activity events, but it does not explicitly state when to use it over the sibling activity tools or mention any exclusions. The usage context is clear enough from the name and first line, but no alternatives or when-not-to-use guidance is provided.

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