diff --git a/main.go b/main.go
index 58e4279..5fbfc04 100644
--- a/main.go
+++ b/main.go
@@ -166,12 +166,7 @@ func main() {
 			fmt.Println("---")
 		}
 
-		// Output all rules
-		for _, rule := range result.Rules {
-			fmt.Println(rule.Content)
-		}
-
-		// Output task
-		fmt.Println(result.Task.Content)
+		// Output the combined prompt (rules + task)
+		fmt.Println(result.Prompt)
 	}
 }
diff --git a/pkg/codingcontext/context.go b/pkg/codingcontext/context.go
index 84dd591..46286fb 100644
--- a/pkg/codingcontext/context.go
+++ b/pkg/codingcontext/context.go
@@ -328,12 +328,21 @@ func (cc *Context) Run(ctx context.Context, taskName string) (*Result, error) {
 	// Estimate tokens for task
 	cc.logger.Info("Total estimated tokens", "tokens", cc.totalTokens)
 
+	// Build the combined prompt from all rules and task content
+	var promptBuilder strings.Builder
+	for _, rule := range cc.rules {
+		promptBuilder.WriteString(rule.Content)
+		promptBuilder.WriteString("\n")
+	}
+	promptBuilder.WriteString(cc.task.Content)
+
 	// Build and return the result
 	result := &Result{
 		Rules:  cc.rules,
 		Task:   cc.task,
 		Tokens: cc.totalTokens,
 		Agent:  cc.agent,
+		Prompt: promptBuilder.String(),
 	}
 
 	return result, nil
diff --git a/pkg/codingcontext/result.go b/pkg/codingcontext/result.go
index af5433b..e4bd923 100644
--- a/pkg/codingcontext/result.go
+++ b/pkg/codingcontext/result.go
@@ -11,6 +11,7 @@ type Result struct {
 	Task   markdown.Markdown[markdown.TaskFrontMatter]   // Task file with frontmatter and content
 	Tokens int                                           // Total token count
 	Agent  Agent                                         // The agent used (from task or -a flag)
+	Prompt string                                        // Combined prompt: all rules and task content
 }
 
 // MCPServers returns all MCP server configurations from rules.
diff --git a/pkg/codingcontext/result_test.go b/pkg/codingcontext/result_test.go
index 65a6891..88a0041 100644
--- a/pkg/codingcontext/result_test.go
+++ b/pkg/codingcontext/result_test.go
@@ -1,12 +1,73 @@
 package codingcontext
 
 import (
+	"context"
+	"log/slog"
+	"os"
 	"testing"
 
 	"github.com/kitproj/coding-context-cli/pkg/codingcontext/markdown"
 	"github.com/kitproj/coding-context-cli/pkg/codingcontext/mcp"
 )
 
+func TestResult_Prompt(t *testing.T) {
+	tests := []struct {
+		name     string
+		setup    func(t *testing.T, dir string)
+		taskName string
+		want     string
+	}{
+		{
+			name: "task only without rules",
+			setup: func(t *testing.T, dir string) {
+				createTask(t, dir, "test-task", "task_name: test-task", "Task content\n")
+			},
+			taskName: "test-task",
+			want:     "Task content\n",
+		},
+		{
+			name: "single rule and task",
+			setup: func(t *testing.T, dir string) {
+				createTask(t, dir, "test-task", "task_name: test-task", "Task content\n")
+				createRule(t, dir, ".agents/rules/rule1.md", "", "Rule 1 content\n")
+			},
+			taskName: "test-task",
+			want:     "Rule 1 content\n\nTask content\n",
+		},
+		{
+			name: "multiple rules and task",
+			setup: func(t *testing.T, dir string) {
+				createTask(t, dir, "test-task", "task_name: test-task", "Task content\n")
+				createRule(t, dir, ".agents/rules/rule1.md", "", "Rule 1 content\n")
+				createRule(t, dir, ".agents/rules/rule2.md", "", "Rule 2 content\n")
+			},
+			taskName: "test-task",
+			want:     "Rule 1 content\n\nRule 2 content\n\nTask content\n",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			tmpDir := t.TempDir()
+			tt.setup(t, tmpDir)
+
+			ctx := New(
+				WithSearchPaths("file://"+tmpDir),
+				WithLogger(slog.New(slog.NewTextHandler(os.Stderr, &slog.HandlerOptions{Level: slog.LevelError}))),
+			)
+
+			result, err := ctx.Run(context.Background(), tt.taskName)
+			if err != nil {
+				t.Fatalf("Run() error = %v", err)
+			}
+
+			if result.Prompt != tt.want {
+				t.Errorf("Result.Prompt = %q, want %q", result.Prompt, tt.want)
+			}
+		})
+	}
+}
+
 func TestResult_MCPServers(t *testing.T) {
 	tests := []struct {
 		name   string