diff --git a/docs/internal/report-registry.md b/docs/internal/report-registry.md
index 8b651ed..0a5579f 100644
--- a/docs/internal/report-registry.md
+++ b/docs/internal/report-registry.md
@@ -16,6 +16,7 @@ Each report definition declares:
 
 - report ID and display name
 - Scriptorium prompt ID
+- generation mode
 - valid-period resolver
 - comparison strategy
 - managed artifact group
@@ -25,6 +26,10 @@ Each report definition declares:
 - morning or evening batch membership
 - default ordered module composition
 
+Current report definitions use the `scriptorium_markdown` generation mode.
+Template and structured-text schema identifiers are empty for these Markdown
+reports.
+
 ## Reports
 
 | Report | ID | Prompt | Artifact group | Batch copy | Prior compatibility |
diff --git a/internal/report/daily_report.go b/internal/report/daily_report.go
index 94b18b6..a2cc06a 100644
--- a/internal/report/daily_report.go
+++ b/internal/report/daily_report.go
@@ -10,6 +10,7 @@ func dailyTodayDefinition() Definition {
 		ID:                 DailyToday,
 		Name:               "Daily Report",
 		PromptID:           "weather.daily_report",
+		GenerationMode:     GenerationModeScriptoriumMarkdown,
 		ComparisonStrategy: CompareSameValidDate,
 		ArtifactGroup:      "daily",
 		BatchOutputName:    "daily.md",
@@ -26,6 +27,7 @@ func dailyTomorrowDefinition() Definition {
 		ID:                 DailyTomorrow,
 		Name:               "Tomorrow Planning Brief",
 		PromptID:           "weather.daily_report",
+		GenerationMode:     GenerationModeScriptoriumMarkdown,
 		ComparisonStrategy: CompareSameValidDate,
 		ArtifactGroup:      "daily",
 		BatchOutputName:    "tomorrow.md",
diff --git a/internal/report/definition.go b/internal/report/definition.go
index 42278cf..bcb7e35 100644
--- a/internal/report/definition.go
+++ b/internal/report/definition.go
@@ -29,6 +29,13 @@ const (
 	CompareRollingWindow  ComparisonStrategy = "rolling_window"
 )
 
+type GenerationMode string
+
+const (
+	GenerationModeScriptoriumMarkdown   GenerationMode = "scriptorium_markdown"
+	GenerationModeGeneratedTextTemplate GenerationMode = "generated_text_template"
+)
+
 type Batch string
 
 const (
@@ -37,18 +44,21 @@ const (
 )
 
 type Definition struct {
-	ID                 ID
-	Name               string
-	PromptID           string
-	ComparisonStrategy ComparisonStrategy
-	ArtifactGroup      string
-	BatchOutputName    string
-	Generated          bool
-	CompatiblePriorIDs []ID
-	Modules            []module.ConfigItem
-	Morning            bool
-	Evening            bool
-	resolve            func(ResolveRequest) (timeutil.Period, error)
+	ID                    ID
+	Name                  string
+	PromptID              string
+	GenerationMode        GenerationMode
+	TemplateID            string
+	GeneratedTextSchemaID string
+	ComparisonStrategy    ComparisonStrategy
+	ArtifactGroup         string
+	BatchOutputName       string
+	Generated             bool
+	CompatiblePriorIDs    []ID
+	Modules               []module.ConfigItem
+	Morning               bool
+	Evening               bool
+	resolve               func(ResolveRequest) (timeutil.Period, error)
 }
 
 func (d Definition) ResolvePeriod(req ResolveRequest) (timeutil.Period, error) {
diff --git a/internal/report/hourly_report.go b/internal/report/hourly_report.go
index 8944fcc..0f36193 100644
--- a/internal/report/hourly_report.go
+++ b/internal/report/hourly_report.go
@@ -14,6 +14,7 @@ func hourlyDefinition() Definition {
 		ID:                 Hourly,
 		Name:               "Hourly Report",
 		PromptID:           "weather.hourly_report",
+		GenerationMode:     GenerationModeScriptoriumMarkdown,
 		ComparisonStrategy: CompareRollingWindow,
 		ArtifactGroup:      "hourly",
 		BatchOutputName:    "hourly.md",
diff --git a/internal/report/period_test.go b/internal/report/period_test.go
index 5c98fa6..b0e8bfc 100644
--- a/internal/report/period_test.go
+++ b/internal/report/period_test.go
@@ -245,12 +245,32 @@ func TestRegistryDefinitionsHavePromptIDsAndComparisonStrategies(t *testing.T) {
 		if definition.PromptID == "" {
 			t.Fatalf("%s PromptID is empty", definition.ID)
 		}
+		if definition.Generated && definition.GenerationMode == "" {
+			t.Fatalf("%s GenerationMode is empty", definition.ID)
+		}
 		if definition.ComparisonStrategy == "" {
 			t.Fatalf("%s ComparisonStrategy is empty", definition.ID)
 		}
 	}
 }
 
+func TestRegistryDefinitionsDeclareGenerationMetadata(t *testing.T) {
+	for _, definition := range DefaultRegistry().All() {
+		if !definition.Generated {
+			continue
+		}
+		if definition.GenerationMode != GenerationModeScriptoriumMarkdown {
+			t.Fatalf("%s GenerationMode = %q, want %q", definition.ID, definition.GenerationMode, GenerationModeScriptoriumMarkdown)
+		}
+		if definition.TemplateID != "" {
+			t.Fatalf("%s TemplateID = %q, want empty for Markdown report", definition.ID, definition.TemplateID)
+		}
+		if definition.GeneratedTextSchemaID != "" {
+			t.Fatalf("%s GeneratedTextSchemaID = %q, want empty for Markdown report", definition.ID, definition.GeneratedTextSchemaID)
+		}
+	}
+}
+
 func TestRegistryDefinitionsDeclarePathAndCompatibilityPolicy(t *testing.T) {
 	tests := []struct {
 		id                 ID
diff --git a/internal/report/storm_report.go b/internal/report/storm_report.go
index 68c29ca..b53496d 100644
--- a/internal/report/storm_report.go
+++ b/internal/report/storm_report.go
@@ -13,6 +13,7 @@ func stormDefinition() Definition {
 		ID:                 Storm,
 		Name:               "Storm Report",
 		PromptID:           "weather.storm_report",
+		GenerationMode:     GenerationModeScriptoriumMarkdown,
 		ComparisonStrategy: CompareExplicitWindow,
 		ArtifactGroup:      "storm",
 		BatchOutputName:    "storm.md",
diff --git a/internal/report/three_day_report.go b/internal/report/three_day_report.go
index 7759023..21b21f7 100644
--- a/internal/report/three_day_report.go
+++ b/internal/report/three_day_report.go
@@ -12,6 +12,7 @@ func threeDayDefinition() Definition {
 		ID:                 ThreeDay,
 		Name:               "3-Day Outlook",
 		PromptID:           "weather.three_day_outlook",
+		GenerationMode:     GenerationModeScriptoriumMarkdown,
 		ComparisonStrategy: CompareSameValidDate,
 		ArtifactGroup:      "three-day",
 		BatchOutputName:    "three-day.md",
diff --git a/internal/report/weekend_report.go b/internal/report/weekend_report.go
index b63a508..84c4bcb 100644
--- a/internal/report/weekend_report.go
+++ b/internal/report/weekend_report.go
@@ -13,6 +13,7 @@ func weekendDefinition() Definition {
 		ID:                 Weekend,
 		Name:               "Weekend Outlook",
 		PromptID:           "weather.weekend_outlook",
+		GenerationMode:     GenerationModeScriptoriumMarkdown,
 		ComparisonStrategy: CompareWeekendWindow,
 		ArtifactGroup:      "weekend",
 		BatchOutputName:    "weekend.md",