.jshintrc

{
    "bitwise": true,
    "eqeqeq": true,
    "eqnull": true,
    "immed": true,
    "newcap": true,
    "esnext": true,
    "latedef": true,
    "noarg": true,
    "node": true,
    "undef": true,
    "browser": true,
    "trailing": true,
    "jquery": true,
    "curly": true,
    "trailing": true,
    "smarttabs": true
}

grunt-config.json

{
    "watch": {
        "options": {
            "livereload": true
        },
        "css": {
            "files": "sass/{,*/}*.{scss,sass}",
            "tasks": "compass"
        },
        "js": {
            "files": "<%= jshint.all %>",
            "tasks": ["jshint", "uglify"]
        },
        "html": {
            "files": [ "/*.{html,htm,shtml,shtm,xhtml,php,jsp,asp,aspx,erb,ctp}" ]
        }
    },
    "connect": {
        "server": {
        "options": {
                "port": 9000,
                "base": ".",
                "hostname": "localhost",
                "livereload": true,
                "open": true
            }
        }
    },
    "jshint": {
        "options": {
            "jshintrc": ".jshintrc"
        },
        "all": [ "Gruntfile.js", "js/main.js" ]
    },
    "uglify": {
        "options": {
            "mangle": false
        },
        "dist": {
            "files": {
                "js/main.min.js": [
                "js/main.js"
                ],
                "js/plugins.min.js": [
                "js/plugins.js"
                ]
            }
        }
    },
    "compass": {
        "dist": {
            "options": {
                "force": true,
                "config": "config.rb"
            }
        }
    }
}

Gruntfile.js

module.exports = function(grunt) {

    "use strict"

    // Carrega os plugins relacionados no package.json
    require('load-grunt-tasks')(grunt);

    // Utilizamos o método grunt.file para fazer o parse do grunt-config.json
    var gruntConfig = grunt.file.readJSON("./grunt-config.json");
    grunt.initConfig(gruntConfig);

    // Registra a tarefa padrão
    grunt.registerTask("default", ["connect", "watch"]);
    grunt.registerTask("build", ["compass", "jshint", "uglify"]);
};

package.json

{
  "name": "nomeProjeto",
  "version": "1.0.0",
  "title": "Título do Projeto",
  "homepage": "http://www.sitedoprojeto.com",
  "description": "Descrição do Projeto aqui",
  "author": {
    "name": "Autor",
    "url": "http://www.site.com",
    "email": "email@dominio.com.br"
  },
  "repository": {
    "type": "git",
    "url": "git://github.com/usuario/repositorio.git"
  },
  "devDependencies": {
    "grunt": "~0.4.1",
    "load-grunt-tasks": "~0.1.0",
    "grunt-contrib-watch": "~0.4.3",
    "grunt-contrib-connect": "~0.5.0",
    "grunt-contrib-uglify": "~0.2.1",
    "grunt-contrib-compass": "~0.2.0",
    "grunt-contrib-jshint": "~0.5.4"
  }
}