Manage Google Calendar events with GPT-4o virtual assistant (Orchestrator)

What this workflow does

Front-door chat orchestrator that delegates calendar requests to a separate Sub-Agent workflow which holds Google Calendar tools (Get, Create, Delete). Keeps the agent persona and memory in the Parent for clean separation of concerns.

Pipeline: Chat Trigger → Parent Agent ("Albert") → sub_agent_cal (Execute Workflow Tool) → Child Sub-Agent → Google Calendar

Category: Productivity / Calendar / Agentic
Time to set up: ~10--15 minutes
Difficulty: Intermediate
Cost: Mostly free (n8n CE; OpenAI + Google Calendar usage as configured)

What you'll need

• n8n with chat trigger enabled.

• OpenAI credentials.

• The companion template: Agentic Google Calendar Assistant --- Sub-Agent (Calendar Tools).

• After importing both, open this Parent and re-select the Sub-Agent in the toolWorkflow node.

Set up steps

1. Import this Parent workflow.

2. Import the Sub-Agent workflow (Template B).

3. In the Parent, open sub_agent_cal (Tool → Workflow) and select the imported Sub-Agent workflow.

4. Ensure the input mapping passes:

   • chatInput → text

   • sessionId → sessionid

5. Add your OpenAI credential to the OpenAI Chat Model node.

6. Activate the Parent workflow.

Testing

• "Create a meeting tomorrow 3--4pm called 'Product Sync'" → Sub-Agent should create the event and the agent should confirm.

• "What's on my calendar this week?" → Lists events.

• "Delete my 'Dentist' appointment on Thursday" → Finds and deletes the event.