diff --git a/Dangerfile b/Dangerfile
index d052979..5aa30ba 100644
--- a/Dangerfile
+++ b/Dangerfile
@@ -1,13 +1,25 @@
-# Sometimes it's a README fix, or something like that - which isn't relevant for
-# including in a project's CHANGELOG for example
+# Adapted from https://github.com/capistrano/danger/blob/master/Dangerfile
+# Q: What is a Dangerfile, anyway? A: See http://danger.systems/
+
+# ------------------------------------------------------------------------------
+# Additional pull request data
+# ------------------------------------------------------------------------------
+pr_number = github.pr_json["number"]
+pr_url = github.pr_json["_links"]["html"]["href"]
+# Sometimes its a README fix, or something like that - which isn't relevant for
+# including in a CHANGELOG for example
 declared_trivial = github.pr_title.include? "#trivial"
 
-# Make it more obvious that a PR is a work in progress and shouldn't be merged yet
+# Just to let people know
 warn("PR is classed as Work in Progress") if github.pr_title.include? "[WIP]"
 
-# Warn when there is a big PR
-warn("Big PR") if git.lines_of_code > 500
+# Ensure a clean commits history
+if git.commits.any? { |c| c.message =~ /^Merge branch '#{github.branch_for_base}'/ }
+  fail('Please rebase to get rid of the merge commits in this PR')
+end
+
+commit_lint.check
+
+lgtm.check_lgtm
 
-# Don't let testing shortcuts get into master by accident
-fail("fdescribe left in tests") if `grep -r fdescribe specs/ `.length > 1
-fail("fit left in tests") if `grep -r fit specs/ `.length > 1
+the_coding_love.random
diff --git a/Gemfile b/Gemfile
index 0bd8788..39ae4b9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,3 +2,6 @@
 source "https://rubygems.org"
 
 gem "danger"
+gem "danger-commit_lint"
+gem "danger-lgtm"
+gem "danger-the_coding_love"
diff --git a/Gemfile.lock b/Gemfile.lock
index 54cd749..31ad2eb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -22,14 +22,26 @@ GEM
       kramdown (~> 1.5)
       octokit (~> 4.7)
       terminal-table (~> 1)
+    danger-commit_lint (0.0.6)
+      danger (~> 5.0)
+    danger-lgtm (0.2.0)
+      danger-plugin-api (~> 1.0)
+    danger-plugin-api (1.0.0)
+      danger (> 2.0)
+    danger-the_coding_love (0.0.4)
+      danger-plugin-api (~> 1.0)
+      nokogiri
     faraday (0.12.2)
       multipart-post (>= 1.2, < 3)
     faraday-http-cache (1.3.1)
       faraday (~> 0.8)
     git (1.3.0)
     kramdown (1.14.0)
+    mini_portile2 (2.2.0)
     multipart-post (2.0.0)
     nap (1.1.0)
+    nokogiri (1.8.0)
+      mini_portile2 (~> 2.2.0)
     octokit (4.7.0)
       sawyer (~> 0.8.0, >= 0.5.3)
     open4 (1.3.4)
@@ -46,6 +58,9 @@ PLATFORMS
 
 DEPENDENCIES
   danger
+  danger-commit_lint
+  danger-lgtm
+  danger-the_coding_love
 
 BUNDLED WITH
    1.14.4
diff --git a/hello_world.cpp b/hello_world.cpp
index 92fa5e8..743be7c 100644
--- a/hello_world.cpp
+++ b/hello_world.cpp
@@ -1,7 +1,11 @@
 #include <cstdlib>
 #include <iostream>
 
+std::string message() {
+  return "Hello, Danger world!";
+}
+
 int main() {
-  std::cout << "Hello, Danger world!" << std::endl;
+  std::cout << message() << std::endl;
   return EXIT_SUCCESS;
 }