diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..be66fd1
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+# common
+coverage
+node_modules
+*.log
+.DS_Store
+.nyc_output
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..5115a2d
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,23 @@
+sudo: false
+
+language: node_js
+
+cache:
+  directories:
+  - node_modules
+
+notifications:
+  email: false
+
+node_js:
+- 5
+
+before_install:
+- npm i -g npm@^2.0.0
+
+before_script:
+- npm prune
+
+after_success:
+- npm run coverage:upload
+- npm run semantic-release
diff --git a/README.md b/README.md
index 612bbdb..cf5a6fa 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,8 @@
 # condition-jenkins
+
+[![npm version](https://badge.fury.io/js/%40krux%2Fcondition-jenkins.svg)](http://badge.fury.io/js/%40krux%2Fcondition-jenkins)
+[![Build Status](https://jenkins-ci.org/krux/condition-jenkins.svg)](https://jenkins-ci.org/krux/condition-jenkins)
+[![Coverage Status](https://coveralls.io/repos/krux/condition-jenkins/badge.svg?service=github)](https://coveralls.io/github/krux/condition-jenkins)
+
+[![Dependency Status](https://david-dm.org/krux/condition-jenkins/master.svg)](https://david-dm.org/krux/condition-jenkins/master)
+[![devDependency Status](https://david-dm.org/krux/condition-jenkins/master/dev-status.svg)](https://david-dm.org/krux/condition-jenkins/master#info=devDependencies)
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..298428e
--- /dev/null
+++ b/index.js
@@ -0,0 +1,26 @@
+var SRError = require('@semantic-release/error')
+
+module.exports = function (pluginConfig, config, cb) {
+  var env = config.env
+  var options = config.options
+
+  if (!env.hasOwnProperty('JENKINS_URL')) {
+    return cb(new SRError(
+      'semantic-release didn’t run on Jenkins CI and therefore a new version won’t be published.\n' +
+      'You can customize this behavior using "verifyConditions" plugins: git.io/sr-plugins',
+      'ENOJENKINS'
+    ))
+  }
+
+  if (options.branch !== env.GIT_BRANCH) {
+    return cb(new SRError(
+      'This test run was triggered on the branch ' + env.GIT_BRANCH +
+      ', while semantic-release is configured to only publish from ' +
+      options.branch + '.\n' +
+      'You can customize this behavior using the "branch" option: git.io/sr-options',
+      'EBRANCHMISMATCH'
+    ))
+  }
+
+  cb(null)
+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..cd30a20
--- /dev/null
+++ b/package.json
@@ -0,0 +1,50 @@
+{
+  "name": "@krux/condition-jenkins",
+  "description": "make sure things only the right builds on jenkins get published",
+  "version": "0.0.0-placeholder",
+  "author": "Stephan Bönnemann <stephan@boennemann.me> (http://boennemann.me)",
+  "bugs": {
+    "url": "https://github.com/krux/condition-jenkins/issues"
+  },
+  "dependencies": {
+    "@semantic-release/error": "^1.0.0",
+    "semver": "^5.0.3"
+  },
+  "devDependencies": {
+    "coveralls": "^2.11.2",
+    "nyc": "^5.0.0",
+    "proxyquire": "^1.7.1",
+    "semantic-release": "^6.0.3",
+    "standard": "^6.0.3",
+    "tap": "^5.0.0"
+  },
+  "files": [
+    "index.js"
+  ],
+  "homepage": "https://github.com/krux/condition-jenkins#readme",
+  "keywords": [
+    "publish",
+    "release",
+    "semantic-release",
+    "jenkins-ci"
+  ],
+  "license": "MIT",
+  "publishConfig": {
+    "access": "public",
+    "tag": "next"
+  },
+  "release": {
+    "branch": "next"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/krux/condition-jenkins.git"
+  },
+  "scripts": {
+    "coverage": "nyc report",
+    "coverage:upload": "npm run -s coverage -- --reporter=text-lcov | coveralls",
+    "pretest": "standard",
+    "semantic-release": "semantic-release pre && npm publish && semantic-release post",
+    "test": "nyc tap --no-cov test.js"
+  }
+}
diff --git a/test.js b/test.js
new file mode 100644
index 0000000..a7e7b29
--- /dev/null
+++ b/test.js
@@ -0,0 +1,60 @@
+var proxyquire = require('proxyquire')
+var test = require('tap').test
+var SRError = require('@semantic-release/error')
+
+var condition = proxyquire('./', {})
+
+test('raise errors in jenkins environment', function (t) {
+  t.test('only runs on jenkins', function (tt) {
+    tt.plan(2)
+
+    condition({}, {env: {}}, function (err) {
+      tt.ok(err instanceof SRError)
+      tt.is(err.code, 'ENOJENKINS')
+    })
+  })
+
+  t.test('only running on specified branch', function (tt) {
+    tt.plan(5)
+
+    condition({}, {
+      env: {
+        JENKINS_URL: 'http://localhost/',
+        GIT_BRANCH: 'origin/master'
+      },
+      options: {
+        branch: 'origin/master'
+      }
+    }, function (err) {
+      tt.is(err, null)
+    })
+
+    condition({}, {
+      env: {
+        JENKINS_URL: 'http://localhost/',
+        GIT_BRANCH: 'origin/notmaster'
+      },
+      options: {
+        branch: 'origin/master'
+      }
+    }, function (err) {
+      tt.ok(err instanceof SRError)
+      tt.is(err.code, 'EBRANCHMISMATCH')
+    })
+
+    condition({}, {
+      env: {
+        JENKINS_URL: 'http://localhost/',
+        GIT_BRANCH: 'origin/master'
+      },
+      options: {
+        branch: 'origin/foo'
+      }
+    }, function (err) {
+      tt.ok(err instanceof SRError)
+      tt.is(err.code, 'EBRANCHMISMATCH')
+    })
+  })
+
+  t.end()
+})