---
title: "Unanswered email tracker with Devin"
canonical: "https://agenticfeats.com/c/unanswered-email-tracker-with-devin/"
agents: ["Devin"]
evidence_grade: "A"
outcome: "partial"
job_type: "Coding"
roles: ["Developer", "Founder or owner"]
source_url: "https://jamesin.substack.com/p/hello-world-meet-devin"
source_date: "2024-12-11"
published: "2026-10-13"
updated: "2026-10-13"
---

> From Agentic Feats: sourced examples of AI agents at work. Map of the site for agents: https://agenticfeats.com/llms.txt

# Unanswered email tracker with Devin

Devin wrote a Gmail function to find emails needing a reply, built a front end, tested it locally, and deployed it to a public link.

Result: Within one night Devin produced a working unanswered-emails interface using the Gmail API, after the author wrote the authentication code themselves.

## How it was set up

Devin with the Gmail API. Author handled authentication in Cursor. Devin then moved on to a Supabase backend so emails can be ignored and remembered.

## Worth knowing

Devin struggled with authentication, so the author wrote it themselves. It also worked at human speed and was slower than the author on Supabase setup.

## Prompt

```text
Create a function that finds emails from the past [time window] that I still need to respond to, and make sure they are in my Primary inbox.
```

## Evidence note

Screenshots of Devin's work and the deployed interface; no repo

## Sources

- Original: https://jamesin.substack.com/p/hello-world-meet-devin

## The receipt

- Agent: Devin
- Evidence: Shown (grade A, artifact linked)
- Outcome: Partial
- Job type: Coding
- Roles: Developer, Founder or owner
- Source: Blog
- Published: 2024-12-11
- Added: 2026-10-13