calendar_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 usefully explains account defaulting and ISO 8601 formatting, but it does not mention side effects, return values, or confirmation behavior.

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 efficiently organized with a one-sentence purpose followed by a compact argument list. Every line adds necessary semantic information, and the structure makes parameters easy to scan.

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?

For a simple create tool, the description covers all invocation-critical details: parameter meaning, date format, and account handling. It is slightly incomplete only in omitting any description of the result or return value, though no output schema exists to fill that 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?

Schema description coverage is 0%, so the description fully compensates. Each parameter is explained beyond the schema: title is clarified as summary, start/end include ISO 8601 format with concrete examples, and account includes default 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 opens with a specific verb and resource, 'Create a calendar event,' which clearly states the tool's purpose. It is easily distinguished from sibling calendar read tools and Gmail tools.

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 intended use is implied by the creation verb and the sibling tool set, but there is no explicit guidance about when to choose this tool over alternatives, nor any exclusions or prerequisites. It is adequate but not instructive.

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