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

Annotations already establish that this is a non-read-only, non-destructive mutation, but the description adds important side-effect information: failed login, reset, and confirmation counters are reset. It does not explain permissions or whether counter resets are permanent, but the key hidden behavior is disclosed.

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?

It is a single front-loaded sentence with no wasted wording. The operation and its side effects are stated together efficiently.

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 mutation with annotations and an output schema, the description covers the operation and its counter-reset side effect. It is slightly incomplete on prerequisites and alternatives, but nothing critical to invoking it 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?

Schema coverage is 100%, so the meaning of event_id and user_id is already documented in the schema. The description reinforces that the operation is scoped to one attendee in one event but adds no syntax or format detail beyond the structured fields.

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 states a specific verb and resource: 'Unban one attendee in the provided event.' The scope is clear and distinguishes it from the inverse sibling ban_attendee, while also disclosing that counters are reset.

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?

It implies the tool is for unbanning, but gives no explicit when-to-use guidance, prerequisites, or comparison to alternatives such as ban_attendee. An agent must infer that this is the right tool for a currently banned attendee.

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