diff --git a/lib/ruby_lsp/ruby_lsp_rspec/code_lens.rb b/lib/ruby_lsp/ruby_lsp_rspec/code_lens.rb
index a5c999d..abd1399 100644
--- a/lib/ruby_lsp/ruby_lsp_rspec/code_lens.rb
+++ b/lib/ruby_lsp/ruby_lsp_rspec/code_lens.rb
@@ -55,9 +55,12 @@ def log_message(message)
         puts "[#{self.class}]: #{message}"
       end
 
+      # A node is valid if it has a block and the receiver is RSpec (or nil)
       #: (Prism::CallNode) -> bool
       def valid_group?(node)
-        !(node.block.nil? || (node.receiver && node.receiver&.slice != "RSpec"))
+        return false if node.block.nil?
+
+        node.receiver.nil? || node.receiver&.slice == "RSpec"
       end
 
       #: (Prism::CallNode) -> String
diff --git a/lib/ruby_lsp/ruby_lsp_rspec/test_discovery.rb b/lib/ruby_lsp/ruby_lsp_rspec/test_discovery.rb
index e349ab6..41ff7ca 100644
--- a/lib/ruby_lsp/ruby_lsp_rspec/test_discovery.rb
+++ b/lib/ruby_lsp/ruby_lsp_rspec/test_discovery.rb
@@ -30,6 +30,8 @@ def on_call_node_enter(node)
 
         case node.message
         when "describe", "context"
+          return unless valid_group?(node)
+
           handle_describe(node)
         when "it", "specify", "example"
           handle_example(node)
@@ -116,9 +118,12 @@ def find_parent_test_group
         @group_stack.last
       end
 
+      # A node is valid if it has a block and the receiver is RSpec (or nil)
       #: (Prism::CallNode) -> bool
       def valid_group?(node)
-        !(node.block.nil? || (node.receiver && node.receiver&.slice != "RSpec"))
+        return false if node.block.nil?
+
+        node.receiver.nil? || node.receiver&.slice == "RSpec"
       end
 
       #: (Prism::CallNode) -> String
diff --git a/spec/code_lens_spec.rb b/spec/code_lens_spec.rb
index e31f156..b86b6a4 100644
--- a/spec/code_lens_spec.rb
+++ b/spec/code_lens_spec.rb
@@ -229,6 +229,122 @@ def dummy
         end
       end
 
+      it "ignores describe and context calls without blocks" do
+        source = <<~RUBY
+          RSpec.describe "Valid group with block" do
+            it "test in valid group" do
+            end
+          end
+
+          # These should be ignored because they don't have blocks
+          RSpec.describe "Invalid group without block"
+          RSpec.context "Another invalid group"
+
+          # This should also work with non-RSpec receivers
+          describe "Valid group without RSpec prefix" do
+            it "test in valid group" do
+            end
+          end
+
+          # Invalid without block, even without RSpec prefix
+          describe "Invalid without block"
+          context "Invalid context without block"
+        RUBY
+
+        with_server(source, uri) do |server, uri|
+          server.process_message(
+            {
+              id: 1,
+              method: "textDocument/codeLens",
+              params: {
+                textDocument: { uri: uri },
+                position: { line: 0, character: 0 },
+              },
+            },
+          )
+
+          response = pop_result(server).response
+
+          # Should only generate code lens for the 2 valid groups (with blocks) and their children
+          # Each group gets 3 code lenses (run, run in terminal, debug)
+          # Each example gets 3 code lenses
+          # So: 2 groups * 3 + 2 examples * 3 = 12 total
+          expect(response.count).to eq(12)
+
+          # Verify the valid groups are present
+          group_commands = response.select { |r| r.data[:kind] == :group }
+          expect(group_commands.count).to eq(6) # 2 groups * 3 commands each
+
+          # Check that the correct groups are present
+          group_names = group_commands.map { |cmd| cmd.command.arguments[1] }.uniq
+          expect(group_names).to contain_exactly("Valid group with block", "Valid group without RSpec prefix")
+
+          # Verify examples are present
+          example_commands = response.select { |r| r.data[:kind] == :example }
+          expect(example_commands.count).to eq(6) # 2 examples * 3 commands each
+        end
+      end
+
+      it "handles nested groups where some lack blocks" do
+        source = <<~RUBY
+          RSpec.describe "Outer group with block" do
+            # Valid nested group
+            describe "Valid nested group" do
+              it "nested test" do
+              end
+            end
+
+            # Invalid nested group (no block) - should be ignored
+            describe "Invalid nested group"
+
+            # Another valid nested group
+            context "Valid context" do
+              it "context test" do
+              end
+            end
+
+            # Invalid context (no block) - should be ignored
+            context "Invalid context"
+          end
+        RUBY
+
+        with_server(source, uri) do |server, uri|
+          server.process_message(
+            {
+              id: 1,
+              method: "textDocument/codeLens",
+              params: {
+                textDocument: { uri: uri },
+                position: { line: 0, character: 0 },
+              },
+            },
+          )
+
+          response = pop_result(server).response
+
+          # Should generate code lens for:
+          # - 1 outer group (3 commands)
+          # - 2 valid nested groups (2 * 3 = 6 commands)
+          # - 2 examples (2 * 3 = 6 commands)
+          # Total: 15 commands
+          expect(response.count).to eq(15)
+
+          # Check that only the valid groups are present
+          group_commands = response.select { |r| r.data[:kind] == :group }
+          expect(group_commands.count).to eq(9) # 3 groups * 3 commands each
+
+          group_names = group_commands.map { |cmd| cmd.command.arguments[1] }.uniq
+          expect(group_names).to contain_exactly("Outer group with block", "Valid nested group", "Valid context")
+
+          # Verify examples are present
+          example_commands = response.select { |r| r.data[:kind] == :example }
+          expect(example_commands.count).to eq(6) # 2 examples * 3 commands each
+
+          example_names = example_commands.map { |cmd| cmd.command.arguments[1] }.uniq
+          expect(example_names).to contain_exactly("nested test", "context test")
+        end
+      end
+
       context "with a custom rspec command configured" do
         let(:configuration) do
           {
diff --git a/spec/test_discovery_spec.rb b/spec/test_discovery_spec.rb
index 5b59f13..bbe01e4 100644
--- a/spec/test_discovery_spec.rb
+++ b/spec/test_discovery_spec.rb
@@ -178,5 +178,113 @@
         expect(third_example[:label]).to eq("example at ./spec/fake_spec.rb:10")
       end
     end
+
+    it "ignores describe and context calls without blocks" do
+      source = <<~RUBY
+        RSpec.describe "Valid group with block" do
+          it "test in valid group" do
+            expect(true).to be(true)
+          end
+        end
+
+        # These should be ignored because they don't have blocks
+        RSpec.describe "Invalid group without block"
+        RSpec.context "Another invalid group"
+
+        # This should also work with non-RSpec receivers
+        describe "Valid group without RSpec prefix" do
+          it "test in valid group" do
+            expect(true).to be(true)
+          end
+        end
+
+        # Invalid without block, even without RSpec prefix
+        describe "Invalid without block"
+        context "Invalid context without block"
+      RUBY
+
+      with_server(source, uri) do |server, uri|
+        server.process_message(
+          {
+            id: 1,
+            method: "rubyLsp/discoverTests",
+            params: {
+              textDocument: { uri: uri },
+            },
+          },
+        )
+
+        items = pop_result(server).response
+
+        # Should only find 2 valid groups (the ones with blocks)
+        expect(items.length).to eq(2)
+
+        first_group = items.first
+        expect(first_group[:label]).to eq("Valid group with block")
+        expect(first_group[:children].length).to eq(1)
+        expect(first_group[:children][0][:label]).to eq("test in valid group")
+
+        second_group = items[1]
+        expect(second_group[:label]).to eq("Valid group without RSpec prefix")
+        expect(second_group[:children].length).to eq(1)
+        expect(second_group[:children][0][:label]).to eq("test in valid group")
+      end
+    end
+
+    it "handles nested groups where some lack blocks" do
+      source = <<~RUBY
+        RSpec.describe "Outer group with block" do
+          # Valid nested group
+          describe "Valid nested group" do
+            it "nested test" do
+              expect(true).to be(true)
+            end
+          end
+
+          # Invalid nested group (no block) - should be ignored
+          describe "Invalid nested group"
+
+          # Another valid nested group
+          context "Valid context" do
+            it "context test" do
+              expect(true).to be(true)
+            end
+          end
+
+          # Invalid context (no block) - should be ignored
+          context "Invalid context"
+        end
+      RUBY
+
+      with_server(source, uri) do |server, uri|
+        server.process_message(
+          {
+            id: 1,
+            method: "rubyLsp/discoverTests",
+            params: {
+              textDocument: { uri: uri },
+            },
+          },
+        )
+
+        items = pop_result(server).response
+
+        expect(items.length).to eq(1)
+
+        outer_group = items.first
+        expect(outer_group[:label]).to eq("Outer group with block")
+        # Should only have 2 children (the valid nested groups)
+        expect(outer_group[:children].length).to eq(2)
+
+        nested_groups = outer_group[:children]
+        expect(nested_groups[0][:label]).to eq("Valid nested group")
+        expect(nested_groups[0][:children].length).to eq(1)
+        expect(nested_groups[0][:children][0][:label]).to eq("nested test")
+
+        expect(nested_groups[1][:label]).to eq("Valid context")
+        expect(nested_groups[1][:children].length).to eq(1)
+        expect(nested_groups[1][:children][0][:label]).to eq("context test")
+      end
+    end
   end
 end