agentusecases.aiAll 1,777 use cases
Software & DevOps

Refactor a legacy jQuery plugin and fix its bugs

Devin refactored a 2017 jQuery plugin, fixed a popup-not-closing bug and added a debug mode, producing two accepted PRs, though its first code left console.logs in.

Done withDEDevin

What they did
The author connected Devin to GitHub and asked it to clone his 2017 exit-intent plugin, remove jQuery, refactor it, update the README and example, and test it. Devin planned the steps, asked once before refactoring, and opened a PR. The author ran the code, reported the console errors, and had Devin fix the bug and remove the console.logs. A second prompt asked for a debug mode.
How it went
The popup-close fix took Devin about two hours. The debug mode took 9 minutes, including the README update and a new PR. Both PRs were merged, but the author had to step in on basic issues.
Worth knowing
Devin plans now start at US$500/month. The author tested it free before general availability.

Try it yourself with Devin

In my repo [repo URL], refactor the legacy jQuery plugin at [file path] into clean modern JavaScript without changing its public behavior. Fix this bug: [describe bug, e.g. popup does not close on outside click], add an optional debug mode that is off by default, and make sure no stray console.log calls remain. Open a pull request with a summary of changes and tests, and do not merge it.

Want help getting this working? Join the Vibe Coding Academy ↗ Run by Alex Finn, who also runs this site.

Read the original ↗

Source: scalablepath.com · Undated

Related use cases

  • DE

    Hand narrow code changes to Devin for pull requests

    A team used Devin for a month on small fixes like chart formatting and API edge cases, with tests and PRs; a complex full-stack task went poorly.

    Devin

  • DE

    Rewrite a README after a rearchitecture

    Devin scanned a rearchitected codebase and delivered a new README as a PR with accurate setup and API details, but struggled with design rationale and purpose.

    Devin

  • DE

    Split a React Native to Swift migration across agents

    Cognition's Jared Zoneraich uses Devin fan-out so child agents work in parallel on a migration split into six pieces.

    Devin

  • CL

    Build a C compiler with a team of parallel agents

    Anthropic's engineering write-up on tasking Opus 4.6 agent teams with building a C compiler.

    Claude

  • CR

    Build a homepage from Figma designs via MCP

    The author connected Figma to Cursor over MCP to build a new homepage for a font archive, with great results after Lovable disappointed.

    Cursor

  • CX

    Run Codex with low-touch planning and port reservation

    A commenter has Codex execute mostly on its own with human planning and review, including a portbroker that reserves and injects a port.

    Codex

Keep browsing

All 44 Devin use casesAll 307 Software & DevOps use cases

Get 5 like this every morning

The best things people got an AI agent to do, each with the prompt to try it.

All use casesAgentsTopicsJobsNewRSSAboutContactSponsorPrivacy
Sponsors
VCVibe Coding Academy: Master AI and automate your lifeS/Ship/It Weekly: #1 AI newsletter on planet Earth+Your logo here: sponsor usVCVibe Coding Academy: Master AI and automate your lifeS/Ship/It Weekly: #1 AI newsletter on planet Earth+Your logo here: sponsor usVCVibe Coding Academy: Master AI and automate your lifeS/Ship/It Weekly: #1 AI newsletter on planet Earth+Your logo here: sponsor usVCVibe Coding Academy: Master AI and automate your lifeS/Ship/It Weekly: #1 AI newsletter on planet Earth+Your logo here: sponsor usVCVibe Coding Academy: Master AI and automate your lifeS/Ship/It Weekly: #1 AI newsletter on planet Earth+Your logo here: sponsor us
VCVibe Coding Academy: Master AI and automate your lifeS/Ship/It Weekly: #1 AI newsletter on planet Earth+Your logo here: sponsor usVCVibe Coding Academy: Master AI and automate your lifeS/Ship/It Weekly: #1 AI newsletter on planet Earth+Your logo here: sponsor usVCVibe Coding Academy: Master AI and automate your lifeS/Ship/It Weekly: #1 AI newsletter on planet Earth+Your logo here: sponsor usVCVibe Coding Academy: Master AI and automate your lifeS/Ship/It Weekly: #1 AI newsletter on planet Earth+Your logo here: sponsor usVCVibe Coding Academy: Master AI and automate your lifeS/Ship/It Weekly: #1 AI newsletter on planet Earth+Your logo here: sponsor us