Inbox Reimagined: AI Email Aggregator Using Vertex AI + Runner H

Anil Kumar — Wed, 02 Jul 2025 02:44:38 +0000

I built an AI-powered Email Aggregator App that connects to Gmail and intelligently organizes your inbox using real-time classification and summarization via Runner H + Vertex AI.

It solves the problem of email overload by categorizing each unread email and summarizing it in one line, making it easier for users to review, act, or archive in bulk.

You can try out the live agent here:

👉 AI Email Classifier + Summarizer (Runner H Demo)

Paste any email subject and snippet to get a clean JSON response with:

Category (e.g., Sensitive, Promotional)
Reason
One-line summary

How I Used Runner H

You are an intelligent email assistant.

Classify the email into: Promotional, Follow-Up, Sensitive, or Junk.
Also summarize it in one line.

Subject: {{ subject }}
Snippet: {{ snippet }}

Return a JSON like:
{
"category": "...",
"reason": "...",
"summary": "..."
}

The Runner H agent returns:
{
"category": "Sensitive",
"reason": "Mentions a credit card statement and due date.",
"summary": "Your Axis Bank credit card bill for June is available; due by 10th July."
}
I used this output to power the app's inbox view and daily digest logic.

Use Case & Impact

This is ideal for:

Professionals overloaded with unread email

Founders and freelancers managing multiple accounts

Users who want smart summaries without switching inbox apps

Impact:

10x faster inbox cleanup

AI-generated summaries reduce decision fatigue

Categories allow smart filtering and batch actions

Customizable: users can override categories and retrain logic

This is a prototype for an intelligent email agent — but the same logic could be extended to Slack, WhatsApp messages, or CRM workflows.

Social Love

Shared here on X: https://x.com/gurusad2/status/1940239835333308615

Please leave comments or ideas. I'm open to collaborating or expanding this into a plug-and-play SaaS tool!

Tech Stack
Frontend: React + Vite + TailwindCSS

Backend: FastAPI on Cloud Run

AI: Runner H (Gemini/GPT prompt-based agent)

Storage: Firebase Firestore

Deployment: Firebase Hosting

DEV Community: Anil Kumar

Inbox Reimagined: AI Email Aggregator Using Vertex AI + Runner H

How I Used Runner H

Use Case & Impact

Social Love