create_calendar_event

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

No annotations are provided, so the description carries the full burden for behavioral disclosure. It lists parameter meanings and formats but does not mention side effects beyond the obvious creation, error conditions, permissions, or how the system handles timezone/duplicates. This is a minimal disclosure for a mutation tool.

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 compact, well-structured list of arguments with brief explanations. It front-loads the main purpose in one sentence and avoids unnecessary prose. Slight redundancy with the schema exists, but it adds semantic value.

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?

The description covers all six parameters with formats and defaults, and an output schema is present, so return values need not be explained. Remaining gaps include error handling and prerequisites, but for a straightforward creation tool, the coverage is reasonably complete.

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 well by explaining each parameter's purpose, providing ISO format for dates, and specifying a default for calendar_name. It adds meaning beyond the raw schema.

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 'Create a new calendar event,' which is a specific verb and resource. It distinguishes from siblings like list_calendar_events (read-only) and create_reminder (different entity).

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 usage for adding events to a calendar but does not explicitly state when to use it versus alternatives. No exclusions or alternative recommendations are provided, so guidance is implicit rather than explicit.

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