diff --git a/src/lib/verify.js b/src/lib/verify.js
new file mode 100644
index 00000000..e1fb4299
--- /dev/null
+++ b/src/lib/verify.js
@@ -0,0 +1,37 @@
+const SemanticReleaseError = require('./error')
+
+module.exports = function (pkg, options, env) {
+  let errors = []
+
+  if (!pkg.name) {
+    errors.push(new SemanticReleaseError(
+      'No "name" found in package.json.',
+      'ENOPKGNAME'
+    ))
+  }
+
+  if (!pkg.repository || !pkg.repository.url) {
+    errors.push(new SemanticReleaseError(
+      'No "repository" found in package.json.',
+      'ENOPKGREPO'
+    ))
+  }
+
+  if (options.debug) return errors
+
+  if (!options['github-token']) {
+    errors.push(new SemanticReleaseError(
+      'No github token specified.',
+      'ENOGHTOKEN'
+    ))
+  }
+
+  if (!env.NPM_TOKEN) {
+    errors.push(new SemanticReleaseError(
+      'No npm token specified.',
+      'ENONPMTOKEN'
+    ))
+  }
+
+  return errors
+}