get_device_flows

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

No annotations are available, so the description carries the burden of behavioral disclosure. It states that the tool returns flow data from the Firewalla init payload, which provides some context, but it does not mention safety, permissions, limitations, or side effects. For a simple read operation, this is minimally acceptable.

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 two sentences long, front-loaded with the purpose, and contains no extraneous information. It efficiently conveys the tool's function and data source.

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 tool has a single parameter and no output schema, so the description needs to explain the return value. It says 'returns flow data' but does not describe the structure or any limitations (e.g., time window, flow count). This is adequate but leaves gaps for an agent expecting a detailed response format.

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 100% coverage with a description for the 'mac' parameter, so the description adds little beyond the schema. The text 'by MAC address' reinforces what the schema already documents, making this baseline 3.

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 the tool gets recent network flows for a specific device by MAC address. It uses a specific verb and resource, and distinguishes itself from sibling tools like get_top_talkers or search_flows by the device-specific scope.

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 clearly implies the tool is for retrieving flows for a particular device via MAC address, giving it a clear context. However, it does not explicitly mention alternatives or when-not-to-use, so it lacks exclusions but still provides enough guidance.

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