diff --git a/.github/workflows/danger.yml b/.github/workflows/danger.yml
new file mode 100644
index 000000000..1249453ab
--- /dev/null
+++ b/.github/workflows/danger.yml
@@ -0,0 +1,24 @@
+name: Danger
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+jobs:
+  danger:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: '3.2.1'
+
+      - name: Install dependencies
+        run: bundle install
+
+
+      - name: Run Danger
+        env:
+          DANGER_GITHUB_API_TOKEN: ${{ secrets.DANGER_BOT_TOKEN_PLACEHOLDER }}
+        run: bundle exec danger --verbose
\ No newline at end of file
diff --git a/Dangerfile b/Dangerfile
new file mode 100644
index 000000000..25296d31c
--- /dev/null
+++ b/Dangerfile
@@ -0,0 +1,6 @@
+# Rule 1: PR should not be too small (less than 50 lines of code)
+fail("Your pull request should not be too small (less than 50 LoC).") if git.lines_of_code < 50
+
+
+# Rule 2: PR should not touch too many files (more than 30 files)
+fail("Your pull request should not touch too many files (more than 30 files).") if git.modified_files.size + git.added_files.size > 30
\ No newline at end of file
diff --git a/Gemfile b/Gemfile
index 1786836d0..cec1df9ee 100644
--- a/Gemfile
+++ b/Gemfile
@@ -44,6 +44,7 @@ group :development, :test do
   gem 'rswag-specs'
   gem 'rubocop'
   gem 'simplecov', require: false, group: :test
+  gem 'danger'
 end
 
 group :development do
diff --git a/Gemfile.lock b/Gemfile.lock
index cb84960a2..172ac48d6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -69,12 +69,35 @@ GEM
     addressable (2.8.5)
       public_suffix (>= 2.0.2, < 6.0)
     ast (2.4.2)
+    base64 (0.2.0)
     bcrypt (3.1.19)
     bootsnap (1.16.0)
       msgpack (~> 1.2)
     builder (3.2.4)
+    claide (1.1.0)
+    claide-plugins (0.9.2)
+      cork
+      nap
+      open4 (~> 1.3)
+    colored2 (3.1.2)
     concurrent-ruby (1.2.2)
+    cork (0.3.0)
+      colored2 (~> 3.1)
     crass (1.0.6)
+    danger (9.5.1)
+      base64 (~> 0.2)
+      claide (~> 1.0)
+      claide-plugins (>= 0.9.2)
+      colored2 (~> 3.1)
+      cork (~> 0.1)
+      faraday (>= 0.9.0, < 3.0)
+      faraday-http-cache (~> 2.0)
+      git (~> 1.13)
+      kramdown (~> 2.3)
+      kramdown-parser-gfm (~> 1.0)
+      octokit (>= 4.0)
+      pstore (~> 0.1)
+      terminal-table (>= 1, < 4)
     date (3.3.3)
     debug (1.8.0)
       irb (>= 1.5.0)
@@ -89,8 +112,19 @@ GEM
       railties (>= 5.0.0)
     faker (3.2.0)
       i18n (>= 1.8.11, < 2)
+    faraday (2.12.2)
+      faraday-net_http (>= 2.0, < 3.5)
+      json
+      logger
+    faraday-http-cache (2.5.1)
+      faraday (>= 0.8)
+    faraday-net_http (3.4.0)
+      net-http (>= 0.5.0)
     find_with_order (1.3.1)
       activerecord (>= 3)
+    git (1.19.1)
+      addressable (~> 2.8)
+      rchardet (~> 1.8)
     globalid (1.1.0)
       activesupport (>= 5.0)
     i18n (1.14.1)
@@ -102,8 +136,13 @@ GEM
     json-schema (3.0.0)
       addressable (>= 2.8)
     jwt (2.7.1)
+    kramdown (2.4.0)
+      rexml
+    kramdown-parser-gfm (1.1.0)
+      kramdown (~> 2.0)
     language_server-protocol (3.17.0.3)
     lingua (0.6.2)
+    logger (1.6.6)
     loofah (2.21.3)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
@@ -118,6 +157,9 @@ GEM
     minitest (5.19.0)
     msgpack (1.7.2)
     mysql2 (0.5.5)
+    nap (1.1.0)
+    net-http (0.6.0)
+      uri
     net-imap (0.3.7)
       date
       net-protocol
@@ -136,10 +178,15 @@ GEM
       racc (~> 1.4)
     nokogiri (1.15.2-x86_64-linux)
       racc (~> 1.4)
+    octokit (9.2.0)
+      faraday (>= 1, < 3)
+      sawyer (~> 0.9)
+    open4 (1.3.4)
     parallel (1.23.0)
     parser (3.2.2.3)
       ast (~> 2.4.1)
       racc
+    pstore (0.1.4)
     public_suffix (5.0.3)
     puma (5.6.6)
       nio4r (~> 2.0)
@@ -179,6 +226,7 @@ GEM
       zeitwerk (~> 2.5)
     rainbow (3.1.1)
     rake (13.0.6)
+    rchardet (1.9.0)
     regexp_parser (2.8.1)
     reline (0.3.7)
       io-console (~> 0.5)
@@ -224,6 +272,9 @@ GEM
     rubocop-ast (1.29.0)
       parser (>= 3.2.1.0)
     ruby-progressbar (1.13.0)
+    sawyer (0.9.2)
+      addressable (>= 2.3.5)
+      faraday (>= 0.17.3, < 3)
     simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
@@ -231,6 +282,8 @@ GEM
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.4)
     spring (4.1.1)
+    terminal-table (3.0.2)
+      unicode-display_width (>= 1.1.1, < 3)
     thor (1.2.2)
     timeout (0.4.0)
     tzinfo (2.0.6)
@@ -238,6 +291,7 @@ GEM
     tzinfo-data (1.2023.3)
       tzinfo (>= 1.0.0)
     unicode-display_width (2.4.2)
+    uri (1.0.2)
     websocket-driver (0.7.6)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
@@ -252,6 +306,7 @@ PLATFORMS
 DEPENDENCIES
   bcrypt (~> 3.1.7)
   bootsnap
+  danger
   debug
   factory_bot_rails
   faker