create_calendar_event

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

The description lacks annotations and fails to disclose behavioral traits such as required permissions, side effects, or the fact that the input schema includes parameters (e.g., date_from, date_to, agent_id, event_id) that appear unrelated to creation. This misalignment undermines transparency.

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 a single, efficient line that communicates the core action. However, its brevity sacrifices valuable context that could be provided without becoming verbose.

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?

Given 11 parameters, no output schema, and no annotations, the description is incomplete. It fails to explain the return value, required permissions, or the function of seemingly extraneous input fields, leaving an agent underinformed.

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?

Although the schema provides 82% description coverage, the description adds no additional meaning. Notably, parameters like 'date_from', 'date_to', 'agent_id', and 'event_id' are present but unexplained; they seem out of place for a creation operation, and the description does not clarify their purpose.

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 'Schedule a new event or appointment in the calendar', establishing the verb (create/schedule) and resource (calendar event). However, it does not differentiate from sibling tools like update_calendar_event or create_calendar_notification; the name alone carries that distinction.

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 provided on when to use this tool versus alternatives (e.g., update_calendar_event, delete_calendar_event). The description does not mention prerequisites, necessary permissions, or scenarios where this tool is appropriate.

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