users_enable

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

Annotations only declare readOnlyHint=false and destructiveHint=false, telling the agent this is a non-destructive write. The description adds nothing beyond the name: it does not say what state change occurs, whether it is idempotent, whether it requires prior disablement, or what happens to the user's active connections.

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?

Two words is not conciseness but under-specification; there is no meaningful content to front-load or trim because essentially nothing was written.

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 state-toggle the bar is low, but with no output schema, no parameter documentation, and only a pair of hint annotations, the agent lacks confirmation of the resulting state and the identity/validity requirements for userId.

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 0% for the single required userId parameter, and the description does not mention it at all. The name is fairly self-explanatory, but with zero documented coverage the description should have compensated and does not.

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?

"Enable user" gives a clear verb and resource, so the basic operation is identifiable. However, it offers no differentiation from the obvious counterpart users_disable (or users_delete/users_revoke_subscription) and no scope detail about what enabling entails.

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, no mention of the alternative users_disable, and no prerequisites (e.g., user must exist and currently be disabled). An agent must infer the whole decision context.

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