create_event

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

No annotations are provided, so the description carries the burden of behavioral disclosure. It does add value by noting the two-phase behavior and that invitations to others may be generated, but 'due fasi' is vague and does not explain permissions, actual effects on attendees, or what happens after event creation.

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?

The description is very short and gets the core purpose across in two sentences. The parenthetical about two phases and the date format example are useful, though the two-phase phrasing is compressed and slightly cryptic.

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?

With six parameters, no output schema, and no annotations, the description provides only minimal context. It fails to explain the invitation workflow, request_id role, return behavior, or error cases, leaving the tool under-specified for correct invocation.

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%, and the description only clarifies start/end with ISO 8601 and an example. The remaining parameters (subject, body, location, request_id) are left undocumented in both schema and description; request_id is especially unclear given the invitation-related behavior.

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 clearly states 'Crea un evento di calendario' (creates a calendar event) and adds that it can generate invitations to others, which helps distinguish it from list/delete calendar siblings. It does not explicitly compare with siblings like list_events or find_free_slots, 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?

The description implies use when a calendar event needs to be created, but it gives no explicit guidance about when to choose this tool over send_mail, list_events, or find_free_slots. It mentions a two-phase invitation generation flow but does not clarify prerequisites, limitations, or when the invitation phase applies.

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