diff --git a/lib/steep/rake_task.rb b/lib/steep/rake_task.rb
index c08242d29..75bafb495 100644
--- a/lib/steep/rake_task.rb
+++ b/lib/steep/rake_task.rb
@@ -1,5 +1,6 @@
 require "rake"
 require "rake/tasklib"
+require "steep/cli"
 
 module Steep
   # Provides Rake tasks for running Steep commands.
@@ -8,16 +9,13 @@ module Steep
   # Steep::RakeTask.new do |t|
   #   t.check.severity_level = :error
   #   t.watch.verbose
+  #   t.stats << "--format=table"
   # end
-  class RakeTask < Rake::TaskLib
+  class RakeTask < Rake::TaskLib # steep:ignore UnknownConstant
     attr_accessor :name
 
     def self.available_commands
-      require "steep/cli"
-
-      skipped_commands = %i[langserver checkfile]
-
-      Steep::CLI.available_commands - skipped_commands
+      %i(init check stats binstub project watch)
     end
 
     def initialize(name = :steep, cli_runner = default_cli_runner)
@@ -64,14 +62,21 @@ def initialize
       end
 
       def method_missing(name, value = nil)
-        @options << "--#{name.to_s.gsub(/_/, '-').gsub(/=/, '')}"
-        @options << value.to_s unless value.nil?
+        option = "--#{name.to_s.gsub(/_/, '-').gsub(/=/, '')}"
+        option << "=#{value}" if value
+
+        self << option
       end
 
       def respond_to_missing?(_name)
         true
       end
 
+      def <<(value)
+        @options << value
+        self
+      end
+
       def to_a
         @options
       end
@@ -120,7 +125,7 @@ def define_tasks(configuration, cli_runner)
       end
 
       # Default steep task to steep:check
-      desc "Run steep check" unless ::Rake.application.last_description
+      desc "Run steep check" unless ::Rake.application.last_description # steep:ignore UnknownConstant
       task name => ["#{name}:check"]
     end
   end
diff --git a/sig/steep/rake_task.rbs b/sig/steep/rake_task.rbs
new file mode 100644
index 000000000..02b52b660
--- /dev/null
+++ b/sig/steep/rake_task.rbs
@@ -0,0 +1,53 @@
+module Steep
+  class RakeTask
+
+    attr_accessor name: Symbol
+
+    def self.available_commands: () -> Array[Symbol]
+
+    def initialize: (?::Symbol name, ?cli_runner) ?{ (TaskConfiguration) -> void } -> void
+
+    private
+
+    class TaskConfiguration
+      @commands: Hash[Symbol, CommandConfiguration]
+
+      def initialize: () -> void
+
+      def method_missing: (Symbol command) -> void
+
+      def respond_to_missing?: (Symbol name, ?bool include_private) -> boolish
+
+      def options: (Symbol command) -> Array[String]
+    end
+
+    class CommandConfiguration
+      @options: Array[String]
+
+      def initialize: () -> void
+
+      def method_missing: (Symbol name, ?untyped value) -> void
+
+      def respond_to_missing?: (Symbol _name) -> true
+
+      def <<: (String) -> self
+
+      def to_a: () -> Array[String]
+    end
+
+    type cli_runner = ^(Array[String]) -> Integer
+
+    def default_cli_runner: () -> cli_runner
+
+    def define_tasks: (TaskConfiguration configuration, cli_runner) -> void
+
+    # Methods that is defined in Rake::Task
+
+    def namespace: (Symbol) { (?) -> void } -> void
+
+    def desc: (String) -> void
+
+    def task: (Symbol | String name) { (?) -> void } -> void
+            | (Hash[Symbol, Array[String]]) ?{ (?) -> void } -> void
+  end
+end
diff --git a/test/rake_task_test.rb b/test/rake_task_test.rb
index bc0aa2839..39ffc2273 100644
--- a/test/rake_task_test.rb
+++ b/test/rake_task_test.rb
@@ -10,18 +10,20 @@ def test_task_configuration
 
     configuration.check.severity_level = :error
     configuration.watch.verbose
+    configuration.stats << "--format=table"
 
     assert_raises(NoMethodError) do
       configuration.missing_command.verbose
     end
 
-    assert_equal ["--severity-level", "error"], configuration.options(:check)
+    assert_equal ["--severity-level=error"], configuration.options(:check)
     assert_equal ["--verbose"], configuration.options(:watch)
-    assert_equal [], configuration.options(:stats)
+    assert_equal ["--format=table"], configuration.options(:stats)
+    assert_equal [], configuration.options(:project)
   end
 
   def test_define_task_with_options
-    cli = mock_cli(expecting: %w[check --severity-level error])
+    cli = mock_cli(expecting: %w[check --severity-level=error])
 
     setup_rake_tasks!(cli) do |task|
       task.check.severity_level = :error
@@ -31,11 +33,11 @@ def test_define_task_with_options
   end
 
   def test_rake_arguments
-    cli = mock_cli(expecting: %w[check --severity-level error])
+    cli = mock_cli(expecting: %w[check --severity-level=error])
 
     setup_rake_tasks!(cli)
 
-    Rake::Task["steep:check"].invoke("--severity-level", "error")
+    Rake::Task["steep:check"].invoke("--severity-level=error")
   end
 
   def test_help_task