Respond to calendar event invite

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

No annotations are provided, so the description carries the full disclosure burden. It does add real behavioral context — that the response is recorded against an attendee already on the invite — but says nothing about notification side effects (the sendUpdates default of 'none'), permission requirements, or whether the organizer can respond for others.

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 sentences, zero waste, with the action and the hard precondition front-loaded. Nothing is redundant with the title.

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 six parameters, no annotations, and no output schema, the description is on the thin side. It covers the core action and one failure mode, but omits notification behavior and the fact that responses can be set for other attendees via the email parameter — both relevant to calling it 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 100%, so the baseline is 3. The description adds only marginal meaning, tying 'responseStatus' to attendance and constraining 'email' to an existing invitee; the other four parameters are left entirely to the schema.

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?

States a specific verb set (accept, decline, mark tentative) and a specific resource (an event invite's attendee responseStatus), so the agent knows exactly what the operation does. It does not name or differentiate from the closest sibling, google_calendar_update_event, which could also plausibly touch attendance state.

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 sentence 'The address must already be on the invite' is a genuine precondition that tells the agent when this call will fail. However, there is no explicit guidance on when to use this versus google_calendar_update_event, and no statement about whether the caller must be an attendee.

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