list_host_groups

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

No annotations are provided, so the description carries the entire behavioral burden, and it provides nothing: no indication of read-only safety, return shape, pagination, whether groups are hierarchical, or whether this is scoped to a user. For a tool with zero structured behavioral coverage this is a complete gap.

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?

At three words it wastes nothing and is trivially front-loaded, but its brevity reflects under-specification rather than disciplined concision. It is efficient but empty.

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 no annotations, no output schema, and no parameters, the description was the only channel available to explain what a host group is and what the response contains, and it says nothing. It is inadequate for an agent to use the tool confidently.

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 tool takes zero parameters, so there is nothing for the description to disambiguate; the baseline of 4 applies. The description does not need to explain parameter formats because none exist.

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 'List host groups' simply restates the tool name verbatim, making it a tautology. It does convey a read/list purpose, but it adds no scope, no distinction from siblings like list_hosts or get_host_tree, and no information an agent couldn't derive from the name alone.

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?

There is no when-to-use guidance, no mention of when to prefer this over list_hosts, get_host_tree, or create/update/delete_host_group. At most the listing verb implies retrieval, but nothing routes the agent among the many host-related siblings.

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