diff --git a/.github/workflows/rspec.yml b/.github/workflows/rspec.yml
new file mode 100644
index 0000000..e1c32bd
--- /dev/null
+++ b/.github/workflows/rspec.yml
@@ -0,0 +1,15 @@
+name: RSpec
+
+on:
+  pull_request:
+
+jobs:
+  rspec:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+      - name: Run specs
+        run: bundle exec rspec
diff --git a/lib/diffdash/cli/runner.rb b/lib/diffdash/cli/runner.rb
index 7f490b0..4b90f79 100644
--- a/lib/diffdash/cli/runner.rb
+++ b/lib/diffdash/cli/runner.rb
@@ -5,7 +5,7 @@ module CLI
     # Thin CLI glue. Orchestrates engine + output adapters.
     class Runner
       VALID_OPTIONS = %w[--dry-run --verbose -v --help -h].freeze
-      VALID_SUBCOMMANDS = %w[folders].freeze
+      VALID_SUBCOMMANDS = %w[folders rspec].freeze
 
       def self.run(args)
         new(args).execute
@@ -42,6 +42,8 @@ def execute
         case @subcommand
         when "folders"
           return list_grafana_folders
+        when "rspec"
+          return run_rspec
         end
 
         warn "[diffdash] v#{VERSION}"
@@ -105,6 +107,13 @@ def find_invalid_arguments
         end
       end
 
+      def rspec_args
+        idx = @args.index("rspec")
+        return [] unless idx
+
+        @args[(idx + 1)..] || []
+      end
+
       def build_outputs(change_set)
         title = Formatters::DashboardTitle.sanitize(change_set.branch_name)
 
@@ -200,6 +209,13 @@ def list_grafana_folders
         1
       end
 
+      def run_rspec
+        cmd = ["bundle", "exec", "rspec", *rspec_args]
+        warn "[diffdash] Running: #{cmd.join(" ")}"
+        system(*cmd)
+        $?.success? ? 0 : 1
+      end
+
       def print_signal_summary(bundle, url: nil)
         log_count = bundle.logs.size
         counter_count = bundle.metrics.count { |s| s.metadata[:metric_type] == :counter }
@@ -275,6 +291,7 @@ def print_help
 
           Commands:
             folders      List available Grafana folders
+            rspec [args] Run the RSpec suite (passes args through)
             (none)       Run analysis and generate/upload dashboard
 
           Options: