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

No annotations are provided, so the description carries the full disclosure burden, and it fails: it only restates the operation implied by the name plus a cryptic 'ipt_' fragment. Nothing is disclosed about side effects, whether a token/ID is returned, session behavior, or persistence. The description adds essentially no behavioral context.

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?

While extremely short, the description appears truncated mid-token ('ipt_…'), which reads as broken rather than intentionally concise. A complete short sentence would be preferable.

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?

Although the tool is simple (no params, no output schema), an agent still needs to know what creating a guest produces (e.g., a guest token or ID) and how it fits the auth flow. The truncated description does not provide this, leaving a meaningful gap.

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?

The tool has zero parameters and schema coverage is 100%, so there is nothing for the description to clarify. Per baseline for parameterless tools, the description reasonably does not need to document parameters.

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 'Cria guest ipt_…' states a verb ('Cria' = creates) and a resource (guest), which roughly distinguishes it from siblings like create_category and create_group. However, the text is truncated mid-phrase ('ipt_…'), leaving the exact purpose unclear, and it is nearly a restatement of the tool name.

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?

No guidance is given on when to use create_guest versus alternatives such as auth_start or auth_verify, which are clearly related to identity and sessions. There are no exclusions, prerequisites, or context signals about the intended flow.

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