devices_list

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

The description is simple and consistent with annotations (readOnlyHint, idempotentHint, destructiveHint are all true/false as expected). It does not add significant behavioral context beyond what the annotations already convey, but also does not contradict them.

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 a single, clear sentence without unnecessary words. While it could be improved by adding brief context on pagination or use cases, it is not verbose and earns its place.

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 presence of an output schema and the straightforward nature of the tool (list with filters), the description is adequately complete. It covers the essential purpose without missing critical information.

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 covers all parameters with descriptions (100% coverage), so the description adds no extra meaning. The baseline of 3 is appropriate as the schema itself is informative.

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 specifies the action ('List devices') and the resource ('from LibreNMS'), and mentions optional filters, distinguishing it from single-device retrieval (device_get) or device creation/deletion.

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 provides no guidance on when to use this tool versus alternatives like device_get or other list tools. It simply states it lists with optional filters, leaving the agent to infer appropriate context.

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