Create calendar entry

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

The description adds value beyond the annotations by specifying the all-day event behavior (all_day=true, date-only timestamps). Annotations already indicate it's a write (readOnlyHint=false) and non-idempotent, and the description confirms that. This additional context aids correct usage.

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 concise, consisting of two sentences with no extraneous information. It front-loads the core purpose and then adds a critical usage tip, making it efficient and easily scannable.

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 has 9 parameters, no output schema, and minimal annotations, the description is insufficient. It lacks information on return values, error handling, parameter dependencies (e.g., calendar_id defaulting), and other behavioral nuances needed for an AI agent to invoke it confidently.

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 only 33% schema description coverage, the description provides essential guidance for the all_day parameter and related timestamp format for start_at/end_at. However, it fails to explain the remaining six parameters (description, location, calendar_id, matter_id, event_type_id), 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 'Creates a calendar entry,' using a specific verb and resource name. This distinguishes it from sibling tools like clio_list_calendar_entries and other create tools for different entities.

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 provides a specific guideline for all-day events (setting all_day=true and using date-only timestamps), which is helpful. However, it does not explicitly state when not to use this tool or compare to alternatives, though the resource name itself makes the intent clear.

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