just

Getting Started

1. Install the skill using the command above
2. Open your AI coding agent (Claude Code, Codex, Gemini CLI, or Cursor)
3. Reference the skill in your prompt
4. The AI will use the skill's capabilities automatically

Example Prompts

• "Review the open pull requests and summarize what needs attention"
• "Generate a changelog from the last 20 commits on the main branch"

Overview

just is a command runner — like make but without the build system baggage. Define commands in a justfile, run with just <command>.

Instructions

Step 1: Install

brew install just

Step 2: Justfile

# justfile — Project commands
set dotenv-load

default: dev

dev:
    npm run dev

test *args:
    npm test {{args}}

build:
    npm run build

db-reset: && db-migrate db-seed
    npx prisma migrate reset --force

db-migrate:
    npx prisma migrate deploy

db-seed:
    npx prisma db seed

deploy env="staging":
    echo "Deploying to {{env}}..."
    npx vercel deploy

up:
    docker compose up -d

down:
    docker compose down

logs service="app":
    docker compose logs -f {{service}}

Guidelines

• Unlike make, just doesn't track file dependencies — purely a command runner.
• Supports arguments with defaults: deploy env="staging".
• just --list shows all available commands.