create_event

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

With no annotations provided, the description carries the full burden. It only says 'generate' but does not disclose that this is a pure file generation with no side effects, no permissions needed, or what happens to the file (e.g., returned as string). Lacks essential behavioral context.

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 single sentence, which is extremely concise. It wastes no words and is easy to parse. However, it could be slightly more structured (e.g., with bullet points) to improve readability for a tool with many parameters.

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 9 parameters, no output schema, and no annotations, the description is insufficient. It does not specify the return format (e.g., filename, ICS content as string), nor does it cover complex parameter interactions like attendees or recurrence (not present). An agent would lack critical information to use the tool correctly.

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 low (44%). The description adds no parameter-specific meaning beyond what the schema already provides. For example, it does not explain how 'url' or 'organizer_email' affect the ICS output, nor does it clarify the relationship between 'all_day' and date formats.

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 generates an RFC 5545 ICS file for a single calendar event. This is a specific verb+resource combination, and it distinguishes from sibling tools like create_calendar (creates a calendar) and parse_ics (parses ICS).

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?

No guidance on when to use this tool versus alternatives. Sibling tools are named but there is no differentiation or context about prerequisites (e.g., need a calendar).

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