Turn Gmail meeting requests into Calendar events with draft replies

Build me an agent workflow that turns incoming meeting requests in Gmail into Google Calendar events with a draft confirmation reply waiting for me to send.

Trigger: poll Gmail for new emails (gmail / new_email) on my primary inbox.

For each new message, do this:

1. Use Gmail Get a Message to fetch the full message (subject, body, from, thread id). Decide whether the email is actually requesting a meeting. Signals: proposing one or more specific times, asking to "find time" or "grab 30 min", sharing a list of slots, or replying to an existing scheduling thread. Newsletters, receipts, marketing, generic replies, and anything that is not a real scheduling ask should be ignored. If it is not a meeting request, stop.

2. If it is a meeting request, parse out: the proposed time or times (with time zone), the meeting duration (default to 30 minutes if not stated), the attendees (sender plus anyone CC'd or named), and the topic / title.

3. Call Google Calendar FreeBusy Query against my primary calendar for the proposed time windows to confirm I am actually free.

4. If at least one proposed time is free, use Google Calendar Create Event to book it on my primary calendar. Set a clear title (for example "<Topic> with <Sender Name>"), add the attendees, put a short description with a link back to the email thread, and attach a Google Meet conference link by default.

5. Then use Gmail Create a Draft to draft a confirmation reply on the same thread. Keep it short and natural, for example: "Confirmed for Thursday 2pm ET, calendar invite on its way. Talk soon." Include the chosen time and time zone.

6. If none of the proposed times work, do not create an event. Instead, run FreeBusy across the next 5 business days and pick 2 to 3 open slots that match the requested duration and roughly the time of day the sender suggested. Use Gmail Create a Draft to draft a counter proposal reply on the same thread listing those slots in the sender's likely time zone.

Hard rules: drafts only, never auto send. Always reply on the original thread, never start a new one. Do not create duplicate calendar events for the same email. If anything is ambiguous (no clear time, missing attendees, multi person scheduling that needs everyone's calendar), draft a clarifying reply instead of guessing.