calendar_create_event

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

No annotations provided, so the description must fully disclose behavior. It only covers the confirm requirement and timezone handling. Missing details on whether creation is idempotent, what happens on conflict, or any side effects, leaving significant behavioral ambiguity.

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?

Two concise sentences cover the essential points: purpose, a critical constraint (confirm=true), and a key interpretation rule (timezone). No redundant words; front-loaded with purpose.

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, 4 required, no output schema, and no annotations, the description is insufficient. It ignores recurrence behavior, attendee structure, and response expectations, leaving the agent underinformed for correct invocation.

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 55% schema coverage, the description should compensate for missing parameter documentation. It adds only the confirm requirement (already in schema) and timezone note (also in schema for start/end). Other parameters like attendees, recurrence, and reminder are not elaborated beyond their schema descriptions.

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 explicitly states the action ('Create') and the resource ('a new Synology Calendar event'), making the purpose immediately clear. It distinguishes from update/delete siblings by focusing exclusively on creation.

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?

Description notes the requirement for 'confirm=true' and explains timezone interpretation for ISO dates. However, it does not provide guidance on when to use this tool versus alternatives like calendar_update_event, nor does it mention prerequisites or common usage patterns.

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