Introducing the Devfolio plugin for Codex

Ashwin Kumar Uppala -

The hackathon landscape is changing, we are seeing projects getting shipped faster than ever, to accommodate this speed, we are introducing plugin support for codex so you can ship your code during a the hackathon as fast as your agent builds it.

The Devfolio plugin for Codex brings all of that context into Codex itself, in a single install. No copy-pasting JSON configs, no hand-editing TOML, no juggling tabs between your editor and the hackathon dashboard.

What the plugin ships

The plugin bundles two things into one install:

  • The Devfolio MCP server. Codex can read your hackathon, project, and submission context directly. .
  • Codex skills for hackathon workflows. Markdown skills Codex auto-loads when a task matches, covering submission drafting, prize and track matching, tagline rewriting, and submission-readiness checks.

If you've used Devfolio MCP before, you already know what the underlying server does. The plugin is the zero-setup way to wire it into Codex, plus the opinionated skills that make Codex use it well.

Install

First, generate your Devfolio API key at Account Settings → MCP.

Then add the Devfolio marketplace to Codex:

codex plugin marketplace add devfolio/codex-plugin

Start Codex with codex, open the plugins menu with /plugins, select Devfolio, and confirm the install. The MCP server and skills are wired up automatically. You'll be prompted for your API key on first use.

Install the MCP server: codex mcp add devfolio --url "<https://mcp.devfolio.co/mcp?apiKey=YOUR_API_KEY>". See the Devfolio MCP guide for the full walkthrough.

A prompt to try first

Inside your hackathon project repo, run codex and ask:

Help me submit this project to the hackathon I'm participating in on Devfolio.

The submission skill kicks in, queries the Devfolio MCP for the hackathon's tracks and prize requirements, reads your README and source files, and drafts a submission grounded in what you actually built. You review, edit, and publish — no last-minute scramble writing a description from scratch.

Example workflows

Find the right prize fit

Analyze my project and suggest the most relevant sponsor prizes.

Codex compares your project against available tracks and prize requirements, then surfaces where your submission is strongest.

Submit a side project

Create a pomodoro timer app and push the code on GitHub, then create a side project on Devfolio

Codex can use multiple plugins and perform complex task, whether it is

Tighten the writing

Rewrite my tagline and project description to be clearer and more judge-friendly.

Codex uses your actual code as ground truth, so the description reflects what you built — not what you'd write at 3am under deadline pressure.

Devfolio Dashboard will sync with your plugin updates

Your workflow will feel more continuous. You stay in your repo, ask Codex, and get answers grounded in the hackathon you're actually in. You can always continue making changes on Devfolio directly.

Where this fits in Devfolio's AI stack

The Codex plugin is available today as a Devfolio MCP-powered workflow for Codex. It helps builders bring Devfolio context into their local coding environment.

It is also one entry point into a broader AI-native hackathon stack we are building across Devfolio.

Note: The features below are part of Devfolio's broader AI roadmap, some of them not bundled into the Codex plugin today.
  • Devfolio MCP — the underlying server the plugin wraps. Works with Claude Code, Cursor, and any MCP-compatible tool.
  • Whiplash — AI feedback on your project while the hackathon is still running, so you can iterate before submitting.
  • AI-Assisted Application Review — for organizers, scores every applicant against a configurable rubric and flags claim-vs-proof-of-work gaps.
  • Agentic Judging — clones every submission into a sandbox and produces a code-level evaluation report before human judges open a single project.

See the full AI features overview for the rest.

Try it out

The Devfolio plugin for Codex is available now. Install it, generate your API key, setup MCP, and try it on your next hackathon project.

https://github.com/devfolioco/codex-plugin

Resources

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