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

The annotations already declare readOnlyHint=false and destructiveHint=true, so the safety profile is supplied structurally; the description adds nothing beyond them. It does not explain what restoring actually changes (roles, access, login ability), whether the change is reversible, what permissions are needed, or what happens if the user is not suspended. The destructiveHint=true on a 'restore' operation is counterintuitive and the description does nothing to clarify it.

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, which is efficient. The brevity edges into under-specification rather than being a structural flaw, so it scores well here while losing points in completeness.

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 one-parameter tool with a fully documented schema and annotations covering the write/destructive profile, the description is minimally adequate. It is missing the precondition state and the effect of the restore, which an agent would need to avoid calling it on an already-active user.

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?

With one parameter and 100% schema description coverage, the schema already explains that user_id accepts either the app id (preferred) or the VibeAdmin id from list_users. The description adds no further meaning about the identifier format, 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?

The description uses a specific verb and resource ('Restore a ... user') and the qualifier 'suspended' narrows the state being acted on, which implicitly distinguishes it from siblings like suspend_user or update_user_metadata. It stops short of naming that inverse relationship explicitly, so it is clear but not fully differentiated.

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 guidance on when to call this versus alternatives such as update_user_metadata, verify_user_email, or suspend_user, and no statement of prerequisites (e.g. the user must currently be suspended) or expected post-conditions. The only hint is the word 'suspended' inside the purpose statement.

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