calendar_create_event

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

No annotations are provided, so the description carries full burden. It states it creates an event and returns a dict, but does not disclose side effects (e.g., calendar integration, permissions required, or potential errors). Minimal behavioral 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 two sentences, front-loaded with the purpose and a critical detail about datetime format. No redundant information; every sentence earns its place.

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 tool's complexity (create event with multiple fields) and the presence of an output schema, the description is too minimal. It omits explanation of entity_id, return value details, and any behavioral constraints, making it incomplete for an agent to use correctly without additional context.

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 description must compensate. It explains start and end format (ISO 8601) but does not describe entity_id, summary, description, or location. Only 2 of 6 parameters gain meaning, leaving significant gaps.

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 it creates a calendar event via a specific service. It specifies the datetime format for start/end and distinguishes from sibling tools like calendar_delete_event and calendar_list_events by being a creation operation.

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 through the verb 'create' and mentions the datetime format, but does not explicitly state when to use this tool vs. alternatives or provide any prerequisites or exclusions. Usage is clear from context but not explicitly guided.

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