n8n Daily Calendar Brief: Auto-Compile Schedule and Attendee Intel into Email Digest

Input Google Calendar events → parse attendees, retrieve email context, AI-generate summary → output HTML email brief

Who

Knowledge workers or managers who need a quick morning briefing on meetings and external attendee backgrounds

You get

Receive an automated executive-style email each weekday morning with a meeting timeline, external attendee research, and recent email context

You need

n8n · gmail · google-calendar

Steps

1. Prepare environment and authorize credentials

   In n8n, ensure you have Google Calendar, Gmail OAuth2 credentials, and an OpenRouter API credential ready. After importing the template, assign or create credentials for Read Calendar Events, Read Latest Emails, and Send Email; configure the OpenRouter Chat Model and OpenRouter Chat Model1 nodes with your OpenRouter credential, selecting gpt-4o or claude-3.7-sonnet. Note: parameters in workflow.json are empty for all nodes; all actual parameters must be entered in the n8n UI.

2. Set the destination email address

   Open the Send Email node and replace the default [email protected] with your actual email address. Adjust for multiple recipients per n8n Gmail node format if needed.

3. Configure external attendee domain filter

   Open the Identify External Attendees node and replace the filter value yourcompany.com with your actual organization domain. This node distinguishes internal from external attendees; only external attendees trigger email retrieval and enrichment.

4. Customize LLM prompts (optional)

   To adjust tone, format, or length limits, modify the two language model nodes: 1) Research and Develop Brief: controls how attendee background and email threads are synthesized; 2) Summarize Schedule: controls the final Markdown brief formatting and information priority. The source does not provide verbatim prompts; the following are suggested versions to be iterated inside the n8n nodes based on actual output.

   Execution prompt · Editorial suggestion。System/User Prompt field of Research and Develop Brief node (suggested version; adapt to your data schema)

   Copy prompt

   Research and Develop Brief node: Given the attendee list and recent email threads, generate a background summary for each external attendee including role, company, and recent email subject with me. Output a JSON array with name, company, role, recentEmailSubject, context.

   Execution prompt · Editorial suggestion。System/User Prompt field of Summarize Schedule node (suggested version)

   Copy prompt

   Summarize Schedule node: Combine today's meeting metadata and attendee backgrounds into a Markdown daily brief with: meeting timeline, attendee list with backgrounds, key takeaways, and conflict alerts. Use a concise executive-summary style.

5. Activate and manually test the workflow

   Enable the workflow and run it once manually to verify: 1) calendar events are read correctly; 2) external attendees are filtered as expected; 3) the email arrives in your inbox. Once confirmed, keep it active. The source describes the Schedule Trigger running at 7:00 AM on weekdays, but the Run Daily node in workflow.json has empty parameters; you must configure the cron or interval schedule yourself in the n8n UI.

You are setting up the n8n template "Daily Calendar Brief". Proceed in this order:
1. Verify your n8n instance and credentials for Google OAuth and OpenRouter are ready;
2. After importing the template, configure credentials, recipient address, and domain filter node-by-node in the UI;
3. If needed, adapt the suggested prompts in Step 4 for the two LLM nodes;
4. Set your own schedule rule in the Run Daily node (e.g., 7:00 AM on weekdays);
5. Execute manually once, confirm email delivery, then activate the workflow.
Note: workflow.json contains empty parameter objects for all nodes; all actual parameters must be entered in the n8n UI. The workflow will not run correctly immediately after import.