get_device_groups

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

No annotations are provided, so the description must carry the full behavioral burden. "Get all" implies a read-only operation, and the description explains the domain, but it does not explicitly state that the operation is safe, non-mutating, or how it handles errors. For a zero-parameter list operation, this is adequate but not thorough.

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 three sentences: one direct statement of purpose and two sentences providing background on device groups. The background is useful for domain understanding but not strictly necessary for invoking the tool. It is still concise and well-structured, without unnecessary fluff.

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 low complexity (no parameters) and the presence of an output schema, the description sufficiently covers the tool's purpose and domain. It does not mention error conditions or permission requirements, but for a simple read-only list operation, the description is complete enough for an agent to select and call the tool correctly.

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 zero parameters, so the baseline is 4. The description does not need to explain parameters since none exist. The domain context around device groups adds implicit meaning, but there is no parameter detail to elaborate on.

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 "Get all device groups from Itential Platform," which is a specific verb+resource statement. It clearly distinguishes this tool from siblings like create_device_group, add_devices_to_group, and get_devices by focusing on retrieval of groups. The added context defining device groups reinforces the purpose.

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 usage: when you need to list all device groups. It provides clear context about what device groups are, but does not explicitly state when not to use it or mention alternatives. There are no exclusions or alternative tool references, so it falls short of a 5.

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