Devicegroup Update

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

Annotations already communicate destructive and non-read-only behavior, so the description's short 'Update' statement is acceptable. The payload schema separately implies patch-like semantics via 'Patchable fields,' but the description itself adds no additional behavioral context about what changes or side effects may occur. No contradiction with annotations.

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, front-loaded sentence with no filler. It is concise and to the point, though it could have used extra space to clarify usage context.

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?

With a rich input schema and annotations, the description is minimally adequate, but it lacks guidance on prerequisites, how the update affects existing device assignments, or when this tool should be preferred over related devicegroup operations. The presence of an output schema means return values need not be covered.

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 coverage is 100%, so the schema already documents both parameters, including the patchable fields inside the payload object. The tool description itself adds no parameter-level meaning, so a baseline score of 3 is appropriate.

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 states a specific verb and resource: 'Update a device group in LibreNMS.' It clearly distinguishes from sibling tools like devicegroup_add and devicegroup_delete, though it does not elaborate on what kinds of updates are supported within the description itself.

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 no guidance on when to use this tool versus alternatives such as devicegroup_add_devices, devicegroup_remove_devices, or devicegroup_set_maintenance. There are no explicit conditions, exclusions, or alternative routing.

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