diff --git a/internal/recipe/types.go b/internal/recipe/types.go
index af00d9e..55b392a 100644
--- a/internal/recipe/types.go
+++ b/internal/recipe/types.go
@@ -6,9 +6,15 @@ type Recipe struct {
 	Version              string               `yaml:"version"`
 	Parameters           map[string]Parameter `yaml:"parameters"`
 	AllowedShellCommands []string             `yaml:"allowed_shell_commands"`
-	Overview             string               `yaml:"-"` // extracted from markdown
-	Steps                []Step               `yaml:"-"`
-	FinalSummaryPrompt   string               `yaml:"-"`
+
+	// New fields for generic file discovery (option 2)
+	ProjectLanguages []string            `yaml:"project_languages"`
+	Extensions       map[string][]string `yaml:"extensions"`
+
+	// Internal fields populated by loader
+	Overview           string `yaml:"-"`
+	Steps              []Step `yaml:"-"`
+	FinalSummaryPrompt string `yaml:"-"`
 }
 
 type Parameter struct {