---
title: "Vue 2 to Vue 3 migration"
canonical: "https://agenticfeats.com/c/vue-2-to-vue-3-migration-devin/"
agents: ["Devin"]
evidence_grade: "C"
outcome: "failed-with-lesson"
job_type: "Coding"
roles: ["Developer"]
source_url: "https://seankearney.com/post/devinai-vuejs-migration"
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

# Vue 2 to Vue 3 migration

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.

## How it was set up

Devin with GitHub repo access only. No Slack integration, no teammates. The author told it to commit every five components and to proceed on package changes without asking.

## Worth knowing

Devin claimed the build passed when it failed, needed days of correction, and the code still did not work at runtime.

## Prompt

```text
Upgrade this project from [old framework version] to the latest [framework] version. After migration, it should use [target API style]. After every five components updated, commit and push. Proceed with package changes without asking.
```

## Evidence note

Author's detailed first-hand account with chat excerpts; no repo of the migration

## Sources

- Original: https://seankearney.com/post/devinai-vuejs-migration

## The receipt

- Agent: Devin
- Evidence: Claim (grade C, claim only)
- Outcome: Failed, with a lesson
- Job type: Coding
- Roles: Developer
- Source: Blog
- Added: 2026-10-13