Rename Calendar

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

With no annotations, the description carries the full burden. It indicates a mutating rename action but does not disclose potential side effects, permission requirements, reversibility, or whether the calendar ID changes. This is a significant transparency gap for a write operation.

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 short sentences, front-loaded with the English purpose and followed by a Chinese translation. It is concise and free of fluff; the Chinese addition is a useful localization but somewhat redundant.

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 rename tool with two well-documented parameters and no output schema, the description covers the basic purpose. However, the absence of annotations and behavioral details like error cases or effects on sharing make it only minimally complete.

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?

The input schema has 100% coverage for both parameters, so the baseline is 3. The description adds minimal value beyond the schema, only clarifying the calendarId refers to a signed-in user's calendar. It does not explain how to obtain the calendarId or additional context.

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?

Description states 'Rename one of the signed-in user calendars' with a specific verb and resource, clearly distinguishing it from create/delete calendar operations and event updates. The title 'Rename Calendar' reinforces the purpose.

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?

It implies usage on the signed-in user's own calendars, but provides no explicit when-to-use or alternatives. It does not reference sibling tools such as calendar_create_calendar or calendar_delete_calendar, so guidance is only implicit.

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