Automated Daily Email Analysis & Summary with GPT-4o and Gmail
Go to Workflow
Zach @BrightWayAI
Description
Daily Email Pulse Summary:
This agent summarizes a user's daily emails into a clean, actionable summary. It uses OpenAI to analyze content and sends a formatted "Daily Pulse" email at the end of each day.
Main use cases:
Keep track of open loops and next steps across all email conversations
Identify high-potential leads and flag conversations going nowhere
Eliminate the need to manually review your inbox at day’s end
Build a smart summary layer using AI without hallucination or noise
How it works
This workflow can be divided into eight core nodes, each serving a distinct purpose in helping a user stay on top of their day. The result is a curated, AI-generated summary delivered to your inbox — crafted from real message content, not guesswork.
Schedule Trigger (Trigger Node – Runs Daily at Set Time)
Kicks off the workflow at a specific time each day (e.g. 6:00 PM).
Ensures you receive your Daily Pulse consistently, without needing to run it manually.
Date Transformer (Function Node – Define Today & Tomorrow Range)
Uses JavaScript to calculate the current day’s date range:
today: Start of day (00:00:00)
tomorrow: Start of next day (used as a cutoff)
This ensures only emails from today are analyzed, keeping the summary focused and current.
Get All Messages (Gmail Node – Fetch Filtered Emails)
Pulls in all Gmail messages with internalDate between today and tomorrow.
Outputs structured data: from, subject, and body text of each email.
This forms the raw data for the daily business pulse.
Aggregator (Function or Item Lists Node – Combine Message Fields)
Aggregates each message into a readable format:
From: [email protected]
Subject: Demo Follow-up
Body: Let’s schedule a time this week...
All messages are stitched together into a single combinedText string for analysis.
This gives the AI model full context for the day in one unified document.
Email Cleanup (Function Node – Remove Noise & Normalize Text)
Cleans the combinedText blob to remove:
HTML tags
Marketing footers (e.g., unsubscribe links)
Redundant whitespace or formatting artifacts
Ensures GPT gets clean, relevant message content with no distractions.
Agent (OpenAI Node – Generate Structured Summary)
Uses a System Prompt to define its role as an AI Chief of Staff.
Uses a User Prompt that instructs it to categorize messages into sections:
📝 Open Loops / Pending Follow-Up
🚀 Next Steps You’ve Committed To
🧲 Leads Worth Following Up On
🛑 Conversations That Aren’t Leading Anywhere
🧠 Strategy Notes
✅ Top 3 Tasks for Tomorrow
Built-in guardrails ensure the model only uses real content (no hallucination).
Sections with no relevant data are omitted to keep it concise.
HTML Formatter (Function Node – Wrap Markdown in Email-Ready HTML)
Wraps the GPT-generated markdown summary in a simple <html><body> structure.
Applies white-space: pre-wrap to preserve formatting and spacing.
The result is a clean, readable email that renders well across all inboxes (especially Gmail).
Email Send (Email Node – Deliver the Final Pulse)
Sends the formatted summary to your email inbox.
Subject: Your Daily Business Pulse – {{today}}
HTML body: Uses the formatted output from the previous step.
Final output: a well-organized, scannable summary of the day’s communication — focused on what matters.
Why It Works
Automates the end-of-day review ritual without effort
Prioritizes follow-ups, action items, and time-sensitive leads
Filters out noise and low-value conversations
Leverages GPT without risk of hallucination or irrelevant output
Delivers clarity, helping you focus on tomorrow’s most important tasks