calendar_respondToEvent

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

No annotations are provided, so the description must disclose behavioral traits. It states the core action but omits side effects such as organizer notification (though sendNotification is in the schema), whether the response can be changed, any permission requirements, or impact on event details. This is a significant transparency gap 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 a single, focused sentence that conveys the essential action. It is appropriately sized and front-loaded with the verb and resource. No wasted words.

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?

With no annotations and no output schema, the description should provide more behavioral context. It does not explain prerequisites, consequences (e.g., whether an email is sent to the organizer), or how this differs from calendar_updateEvent. The schema is rich, but the description leaves the agent guessing about the tool's side effects and edge cases.

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 100%, so the schema fully documents all parameters. The description adds no extra meaning beyond what is already in the schema—it even repeats the responseStatus enum values. Baseline 3 is appropriate because the schema carries the explanatory load.

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 the tool's function: responding to a meeting invitation with accept, decline, or tentative. It uses a specific verb ('Responds') and identifies the resource (meeting invitation), and the three response options distinguish it from sibling tools like calendar_updateEvent or calendar_createEvent.

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 when to use it (when responding to an invitation) and the three RSVP options are clear. However, it does not explicitly contrast with alternatives like calendar_updateEvent or state when not to use it. This is a clear context but lacks exclusionary guidance.

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