Toggle IPv6

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

Annotations already disclose readOnlyHint=false and destructiveHint=true, so the safety profile is covered. The description adds genuinely new behavioral context beyond them: the required permission scope and the full-access API key constraint. It omits whether the toggle disrupts connectivity or restarts the service, which keeps it short of a 5.

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?

Extremely compact and front-loaded: the action comes first, then the prerequisite. The missing sentence break between the action and the permission requirement slightly hurts readability, but no sentence is wasted.

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 simple two-parameter boolean toggle with full schema coverage, full annotations and no output schema, the description supplies the auth requirement an agent would otherwise have to guess. It could still note whether the change requires a service restart, but nothing essential to calling it correctly is missing.

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?

Both parameters are fully described in the schema (value semantics plus an orderNo pattern, length bounds and examples), giving 100% coverage. The description adds nothing about parameter format or accepted values, so baseline 3 applies.

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 pair (enable/disable) and resource (IPv6) scoped to VPS, so an agent immediately knows the operation. No sibling tool handles IPv6, so it is unambiguously distinguishable from neighbours like toggle_extra_settings or get_networking_features.

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 gives clear context for use (turning IPv6 on or off for a VPS) plus the prerequisites — services:manage scope and a full-access API key. It does not name an alternative or a when-not condition, but none plausibly exists for this operation.

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