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30 Minute Vibe Coding Challenge

This repository contains a curated plugin marketplace for Claude Code, along with project templates and resources from Kasper Junge's YouTube channel.

About the Challenge

The 30 Minute Vibe Coding Challenge is a series where projects are built from scratch in just 30 minutes, demonstrating rapid prototyping and AI-assisted development techniques.

Watch community challenge submissions on the 30-Minute Vibe Coding Challenge YouTube playlist.

Want to participate or learn more? Visit vibe-coding.dk - we're building an exciting community hub with tutorials, resources, and showcase projects from vibe coders around the world!

Plugin Marketplace

This repository hosts a collection of Claude Code plugins that enhance your AI-assisted development workflow. All plugins are designed to work seamlessly with Claude Code.

Repository Structure

• plugins/ - Claude Code plugin marketplace
  • spec-driven-development/ - Specification-first workflow for greenfield projects
  • research-plan-implement/ - Research-driven workflow for existing codebases
  • clarification/ - Task clarification through structured questions
  • And more...
• templates/ - Project templates for quick bootstrapping
• projects/ - Example projects and sandbox
• cli.py - CLI tool for project management

Available Plugins

Spec-Driven Development (SDD)

Best for: Starting new projects from scratch (greenfield)

A comprehensive workflow plugin that follows a specification-first approach with six commands:

Quick Mode (when you have a clear vision):

• /sdd.create_requirements - Generate requirements from brief description
• /sdd.create_design - Generate design with tech stack preferences

Thorough Mode (when you want guided exploration):

• /sdd.clarify_requirements - Interactive requirements clarification through questions
• /sdd.clarify_design - Interactive design clarification

Shared Commands:

• /sdd.create_plan - Generate detailed implementation plan (UI-first when applicable)
• /sdd.implement_plan - Execute the plan with rigorous testing

Workflow: Requirements → Design → Plan → Implement

Key Features:

• Choose between quick and thorough modes
• UI-first planning for projects with interfaces
• Rigorous testing with max 3 attempts per task
• Phase-by-phase execution with human review points
• Complete spec documentation

Read full documentation →

Research-Plan-Implement (RPI)

Best for: Modifying or extending existing codebases (brownfield)

A comprehensive workflow plugin with specialized research agents and structured execution:

Research Agents:

• @codebase-analyzer - Analyze implementation details
• @codebase-locator - Find relevant files and components
• @codebase-pattern-finder - Discover existing patterns
• @web-search-researcher - Research documentation and best practices

Commands:

• /humanlayer.research_codebase - Comprehensive codebase research
• /humanlayer.create_plan - Interactive implementation planning
• /humanlayer.implement_plan - Execute plans with verification

Workflow: Research → Plan → Implement

Key Features:

• Parallel sub-agents for deep codebase analysis
• Documentation-first philosophy (what EXISTS, not what SHOULD BE)
• Structured task directory system
• Automated and manual verification steps
• Based on Advanced Context Engineering by Dexter Horthy

Read full documentation →

Clarification

Best for: Understanding requirements before starting any task

A lightweight plugin that helps clarify tasks through structured questioning:

Commands:

• /clarify_task - Interactive clarification session

Key Features:

• Systematic questioning process
• Uncover core objectives and edge cases
• Define success criteria and scope boundaries
• Document understanding before implementation

Read full documentation →

Installing Plugins

Each plugin includes installation instructions in its README. Generally, you can install plugins using:

/plugin install <plugin-name>@30-minute-vibe-coding-challenge

Or browse plugins directly in the plugins/ directory and review their documentation.

Project Templates

This repository includes starter templates to quickly bootstrap common project types.

Available Templates

• fastapi-sqlite-jinja2 - FastAPI web app with SQLite database and Jinja2 templates

More templates coming soon!

CLI Tool (Optional)