hcloud_list_alarm_rules

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and openWorldHint=true, so safety behavior is covered. The description adds only that this hits the v2 API and returns 'more complete' data, with no word on pagination despite a limit parameter, result size, or ordering.

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?

A single short clause with no wasted words and the resource front-loaded. It is terse rather than padded, though the terseness borders on under-specification handled elsewhere.

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 list tool in a dense namespace with an obvious near-duplicate sibling (hcloud_list_alarms), the description does not give the agent enough to choose correctly or to predict result shape. The full schema and annotations carry most of the weight, but the sibling-disambiguation gap is significant.

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 description coverage is 100%, so both parameters (limit, region) are documented in the schema and the baseline is 3. The description adds no meaning about region scoping, pagination defaults, or what limit applies to, so it does not exceed that baseline.

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 verb 'List' plus resource 'CES alarm rules' is specific enough to know what is returned, but the qualifier '(v2 API, more complete)' is ambiguous — it never says what it is more complete than, and there is a sibling hcloud_list_alarms whose relationship to this tool is left entirely implicit.

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 explicit when-to-use or when-not-to-use guidance. The parenthetical hint implies this is a newer/preferred listing, but an agent must infer whether to call this instead of hcloud_list_alarms, or whether both should be called.

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