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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is fully covered. The description adds only the set of attributes returned (online, safety mode, paused), which is useful output context but not additional behavioral disclosure such as auth needs or result shape.

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 front-loaded sentence with the verb first and no filler. The trailing 'online or not, safety mode, paused or not' is slightly telegraphic, but every clause conveys content the agent would otherwise lack.

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 output schema, the description should ideally characterize what a returned server entry contains; it names three status attributes but not the identity fields (id, name, host) or the collection format. Against full annotation coverage and zero params this is adequate but not complete.

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 the baseline of 4 applies. The description cannot and need not document parameter semantics, and it correctly implies an unfiltered account-wide listing.

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?

States a specific verb and resource ('List the servers on this account') and even names the attributes reported (online status, safety mode, paused state). It does not distinguish itself from siblings like list_sites, list_snapshots, or server_facts, so an agent must infer the boundary rather than being told.

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 and no alternatives named. The description neither excludes any case nor points to a sibling such as server_facts or list_sites, leaving the agent to infer that this is an unfiltered, list-everything call.

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