--- title: "Devin use cases: 14 real examples" canonical: "https://agenticfeats.com/agents/devin/" receipts: 14 shown: 3 page: 1 pages: 1 --- > From Agentic Feats: sourced examples of AI agents at work. Map of the site for agents: https://agenticfeats.com/llms.txt # Devin use cases: 14 real examples Agentic Feats lists 14 sourced examples of Devin in real work; 3 link the artifact; most common job type: coding (12). Newest first. ## Feats, newest first - [Unanswered email tracker with Devin](https://agenticfeats.com/c/unanswered-email-tracker-with-devin.md) (Devin; Shown; 2026-10-13): 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. - [One month testing Devin](https://agenticfeats.com/c/one-month-testing-devin.md) (Devin; Numbers; 2026-10-13): Devin was connected to the RunLLM GitHub repo and given small bug fixes and one larger full-stack task over a month. Result: Small scoped fixes took about five minutes to test and merge versus roughly an hour by hand; the full-stack task failed and was rewritten. - [Third-party token API endpoint](https://agenticfeats.com/c/third-party-token-api-endpoint-devin.md) (Devin; Shown; 2026-10-13): Devin AI planned and built a backend API endpoint for generating third-party user access tokens, then opened a GitHub pull request. Result: After 2-3 review rounds the PR was production-ready and merged. The task took about 1 hour versus roughly 15 minutes coding it alone. - [Docs maintenance with Devin](https://agenticfeats.com/c/docs-maintenance-with-devin.md) (Devin; Numbers; 2026-10-13): Devin handled a docs team's recurring work: weekly changelog setup, GitHub issue and PR fixes, a multi-file term rename, and code explanations. Result: Devin found nearly every old term in a docs-wide rename, but the edits still needed 20+ manual commits. - [City dashboard from blank repo](https://agenticfeats.com/c/city-dashboard-from-blank-repo-devin.md) (Devin; Claim; 2026-10-13): Devin took a blank GitHub repo and built a City Explorer dashboard with a FastAPI backend and React frontend, then deployed it. Result: A working, deployed app that shows images, weather, and news for a city, finished in roughly 90 minutes from an empty repo. - [Devin builds Devin](https://agenticfeats.com/c/devin-builds-devin.md) (Devin; Numbers; 2026-10-13): Devin handles Cognition's own engineering work across Slack, Linear, and the web app: PRs, code review, bug triage, debugging, and design system audits. Result: Cognition merged 659 Devin PRs into its own codebase in one week, up from 154 in its best week of 2025. - [Devin building Devin](https://agenticfeats.com/c/devin-building-devin.md) (Devin; Shown; 2026-10-13): Cognition's team uses Devin across Slack, Linear, web, CLI and API to write, review, triage and debug code in its own codebase. Result: Cognition merged 659 Devin-authored PRs into its own codebase in one week, up from 154 in its best week of 2025. - [Devin one-week coding review](https://agenticfeats.com/c/devin-one-week-coding-review.md) (Devin; Claim; 2026-10-13): Devin was given a week of real coding tasks, from a simple Express API to pagination, and reviewed on speed and accuracy. Result: Devin built a three-endpoint Express API in about 4 minutes, but chose the wrong pagination style on a real codebase and needed review and refactoring. - [Devin cloud testing of PRs](https://agenticfeats.com/c/devin-cloud-testing-of-prs.md) (Devin; Numbers; 2026-10-13): Devin writes a test plan, runs the app on a cloud VM with computer use, and returns annotated test videos and reports. Result: Test runs approved per day on Devin more than doubled in a couple of months, and engineers run 10 to 20 Devins in parallel. - [Marketing site from Figma](https://agenticfeats.com/c/marketing-site-from-figma-devin.md) (Devin; Numbers; 2026-10-13): Devin AI connected to a Figma file through MCP and built a WordPress marketing site with easy content management overnight. Result: The unfinished output is work the author would have quoted at about €2.5k, built in one overnight run. - [Devin as feedback triage bot](https://agenticfeats.com/c/devin-as-feedback-triage-bot.md) (Devin; Claim; 2026-10-13): Devin triaged every app feedback and feature request in a dedicated Slack channel, with read-only access for debugging, and let non-technical staff coauthor PRs. Result: Users resolved issues by talking to Devin, engineers only merged when needed, and Devin Review caught bugs. - [Month of Devin tasks](https://agenticfeats.com/c/month-of-devin-tasks.md) (Devin; Numbers; 2026-10-13): Devin was given more than 20 real coding, research, and code-modification tasks over a month by an Answer.AI team to test its autonomy. Result: Out of 20 tasks, Devin had 14 failures, 3 successes, and 3 inconclusive results, with no pattern predicting which would work. - [Month-long Devin trial](https://agenticfeats.com/c/month-long-devin-trial.md) (Devin; Numbers; 2026-10-13): Devin was tested by the Answer.AI team on 20+ real coding, research, and code-modification tasks over a month through Slack. Result: Out of 20 tasks, Devin had 14 failures, 3 successes, and 3 inconclusive results, with no predictable pattern for which would work. - [Vue 2 to Vue 3 migration](https://agenticfeats.com/c/vue-2-to-vue-3-migration-devin.md) (Devin; Claim; 2026-10-13): Devin was asked to migrate a production Electron app from Vue 2 to Vue 3 with Composition API, script setup, and Pinia. Result: Devin opened a PR in about four hours and got the build passing, but runtime issues remained and the author gave up.