calendar_create_event

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

No annotations provided, but the description discloses key behaviors: it creates an event, returns a UID, and advises saving it for future updates/deletion. Parameter details (e.g., timezone default, alarm format) add transparency. Could mention side effects like event creation impact, but overall strong.

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 concise and well-structured: a brief opening sentence followed by a clear bulleted list of arguments. Almost all sentences add value, though slight redundancy in repeating parameter names in arguments list.

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 the complexity (10 parameters, 4 required, no annotations, and an output schema), the description covers all essential aspects: parameter purposes, formats, defaults, and return value. Missing error conditions or limits, but otherwise complete for a creation tool.

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?

With 0% schema description coverage, the description compensates fully by explaining all parameters in detail, including examples for date format, timezone default, RRULE syntax, and alarm_minutes format. This adds significant value beyond the bare schema types.

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?

Clearly states 'Create a new calendar event' with a specific verb and resource. Differentiates well from sibling tools like calendar_delete_event and calendar_update_event.

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 when to use (to create an event) but does not explicitly state when not to use or suggest alternatives like calendar_update_event for modifications. Usage guidance is adequate but not explicit.

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