Create calendar events automatically from Slack invite messages

React to a Slack message with an emoji and AI builds the calendar event, then keeps the guest list updated as people RSVP.

How the work actually flows

It repeats. Repeats another rsvp reaction arrives.

Pattern: Structured Loop (21)

flowchart TD trig>"invite message reacted with emoji"]:::trig s0["read date time and location with ai"]:::svc s1["create google calendar event"]:::svc s2(("wait for rsvp reaction")):::human s3[("update attendee list")]:::store trig --> s0 s0 --> s1 s1 --> s2 s2 --> s3 lp{"runs until the event date"}:::gate s3 --> lp lp -. "another rsvp reaction arrives" .-> s2 lp -->|"finished"| out out[/"calendar invite with live guest list"/]:::out pay{{"no manual rsvp tracking"}}:::pay out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff
Starts itAn outside serviceA personA record or sheetRepeat or finishResultPayoff
Build size
Advanced

A larger build with multiple systems, AI reasoning, and custom rules.

Business functions
AI Agents & Autonomous SystemsMessaging & NotificationsScheduling & Calendar
Connects
SlackGoogle CalendarOpenAIGoogle Maps
Featured in

The problem it solves

Organizing a get-together usually means someone typing out the date, time, and location by hand into a calendar invite, then manually chasing down who's coming. Updating the guest list every time someone joins or drops out adds even more back and forth.

Who it fits

A team lead or office manager who organizes team events or meetups over Slack.

How it works

  1. A team member posts an invite message and reacts with a calendar emoji
  2. AI reads the message to figure out the date, time, and location
  3. AI looks up the exact address and creates the Google Calendar event
  4. Teammates RSVP by reacting to the message with a checkmark
  5. The guest list updates automatically as people RSVP or change their mind
What you get

Invites that turn into calendar events without typing

You get a calendar event created automatically from a Slack invite, with the guest list updating as people RSVP.

What you get

A Google Calendar invite with an accurate location and an attendee list that stays current.

What you need

A Slack workspace, an OpenAI account, and a Google Calendar.

We can build this. But should you?

The hard question is not how to build it. It is whether this is the right thing to build first.

That is what a Fractional Chief AI Officer figures out with you, before anyone writes a line of code.

Let's Talk Strategy

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