get_network_interfaces

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

With no annotations, the description carries the full burden. It communicates the optional-interface behavior and the kind of data returned, but it does not explicitly state that the operation is read-only or that it has no side effects. For a simple getter, this is a modest gap rather than a severe one.

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 short, front-loaded with the main purpose, and every sentence earns its place. The Args section adds useful parameter context without unnecessary elaboration.

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 tool with one optional parameter and an output schema present, the description is largely complete: it covers the parameter, default behavior, and the kind of payload returned. It is only missing explicit read-only assurance and sibling differentiation, which are partially captured in other dimensions.

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 schema has 0% description coverage and only a bare 'interface' property, but the description compensates well by naming the parameter, giving an example ('eth0'), and explaining the omission behavior. This is meaningful semantic value beyond the structured 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 clearly states the action ('Get') and resource ('network interface details'), and it enumerates actual content: IP addresses, flags, MTU, and link state. It is specific enough to distinguish from many siblings, though it does not explicitly name differentiating sibling tools.

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 gives parameter-level guidance (optional interface name; omission returns all interfaces) but provides no guidance about when to use this tool versus closely related siblings like get_ethernet_interface, get_network_info, or get_interface_link_stats. No exclusions or alternative routing are given.

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