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

Annotations already declare readOnlyHint=true, idempotentHint=true, openWorldHint=true and destructiveHint=false, so the safety profile is covered by structured data. The description adds the useful scoping fact that results are limited to the authenticated organization, but says nothing about pagination behavior or the fact that page/limit exist and that limit caps at 50.

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 zero filler; the parenthetical '(origins)' is the one piece of disambiguation and is well placed. It is efficient, though so terse that it borders on underspecified for a paginated list endpoint.

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 two-parameter read-only list tool with no output schema, the description covers what is enumerated but not how to enumerate it — paging semantics and the 50-item cap are relevant to correct invocation and are absent. No output schema exists, so the missing return-value detail is excusable.

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 only 50%: the 'limit' parameter documents 'Default 50, max 50', but 'page' has no description anywhere. The description adds no information about either parameter, so an agent must guess how paging works and whether results are truncated at 50.

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 (List) and resource (servers, clarified as origins) plus the scope 'registered in the authenticated organization'. An agent can distinguish it from a single-object read like vs_servers_get, but the description never names a sibling or contrasts with vs_servers_monitors_get, so it stops short of full differentiation.

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 guidance, no prerequisites, and no mention of alternatives (e.g. vs_servers_get for a single server, vs_monitors_list for monitors). The only implied usage is the generic 'list' verb, which the agent must infer.

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