diff --git a/docs/roadmap/implementation.md b/docs/roadmap/implementation.md
index c101f31..c9bedf1 100644
--- a/docs/roadmap/implementation.md
+++ b/docs/roadmap/implementation.md
@@ -1,6 +1,6 @@
 # ConfigKit v1.1.0 adoption implementation plan
 
-Status: Stages 1–2 complete; Stages 3–6 are not started.
+Status: Stages 1–3 complete; Stages 4–6 are not started.
 
 This plan is for a Luna coding agent implementing the selected
 [ConfigKit adoption target](configkit-v1.1.0.md). Follow Stage 1 through Stage 6
@@ -148,6 +148,10 @@ source inventory, explanation, diagnostic, and outcome semantics are retained.
 
 ## Stage 3: Update focused report and adapter coverage
 
+**Completed.** Focused source tests cover the new text and YAML keys, native
+main layer, ordered selections, empty lists, and nil/redacted evidence. The
+offline `TestSources` suite passed with Go 1.27.0.
+
 1. Extend `TestSourcesProjectNativeEvidenceInTextAndYAML` in `sources_test.go`
    rather than building another report-test framework. Update fixtures and
    assertions to the new native fields and report keys. Check that legacy
diff --git a/integrations/ckconfig/sources_test.go b/integrations/ckconfig/sources_test.go
index 17dea6b..f13f40d 100644
--- a/integrations/ckconfig/sources_test.go
+++ b/integrations/ckconfig/sources_test.go
@@ -34,7 +34,11 @@ func TestSourcesProjectNativeEvidenceInTextAndYAML(t *testing.T) {
 	reader := &sourceInventory{values: []configkit.SourceInfo{
 		{
 			ID: "root", Label: "root source", Path: "root.yml",
-			PlacementMode: configkit.PlacementModeMapping,
+			PlacementMode: configkit.PlacementModeMapping, Layer: configkit.LayerMain,
+			EmptyImportSelections: []configkit.EmptyImportSelection{
+				{Path: configkit.Keys("imports", "first"), Location: configkit.Location{SourceID: "root.yml", Line: 3, Column: 4}, Selector: configkit.ImportSelectorGlob},
+				{Path: configkit.Keys("imports", "second"), Location: configkit.Location{}, Selector: configkit.ImportSelectorPath},
+			},
 		},
 		{
 			ID: "item", Label: "sequence item", Path: "item.yml",
@@ -70,11 +74,13 @@ func TestSourcesProjectNativeEvidenceInTextAndYAML(t *testing.T) {
 	var report struct {
 		Scope   string `yaml:"scope"`
 		Sources []struct {
-			ID                    string `yaml:"id"`
-			Destination           string `yaml:"destination"`
-			Placement             string `yaml:"placement"`
-			DestinationUnresolved bool   `yaml:"destination_unresolved"`
-			VersionCheck          *struct {
+			ID                    string                    `yaml:"id"`
+			Destination           string                    `yaml:"destination"`
+			Placement             string                    `yaml:"placement"`
+			Layer                 string                    `yaml:"layer"`
+			EmptyImportSelections []emptyImportSelectionDTO `yaml:"empty_import_selections"`
+			DestinationIsFallback bool                      `yaml:"destination_is_fallback"`
+			VersionEvidence       *struct {
 				Path    string `yaml:"path"`
 				Version struct {
 					Present bool   `yaml:"present"`
@@ -87,7 +93,7 @@ func TestSourcesProjectNativeEvidenceInTextAndYAML(t *testing.T) {
 					Column   int    `yaml:"column"`
 				} `yaml:"location"`
 				Redacted bool `yaml:"redacted"`
-			} `yaml:"version_check"`
+			} `yaml:"version_evidence"`
 		} `yaml:"sources"`
 	}
 	if err := yaml.Unmarshal(yamlOutput.Bytes(), &report); err != nil {
@@ -99,21 +105,31 @@ func TestSourcesProjectNativeEvidenceInTextAndYAML(t *testing.T) {
 	if got := []string{report.Sources[0].ID, report.Sources[1].ID, report.Sources[2].ID}; !reflect.DeepEqual(got, []string{"root", "item", "null"}) {
 		t.Fatalf("source order = %v", got)
 	}
-	if root := report.Sources[0]; root.Destination != "" || root.Placement != "mapping" || root.DestinationUnresolved || root.VersionCheck != nil {
+	if root := report.Sources[0]; root.Destination != "" || root.Placement != "mapping" || root.DestinationIsFallback || root.VersionEvidence != nil || root.Layer != "main" {
 		t.Errorf("root source projection = %#v", root)
 	}
+	wantSelections := []emptyImportSelectionDTO{
+		{Path: "/imports/first", Location: locationDTO{SourceID: "root.yml", Line: 3, Column: 4}, Selector: "glob"},
+		{Path: "/imports/second", Location: locationDTO{}, Selector: "path"},
+	}
+	if !reflect.DeepEqual(report.Sources[0].EmptyImportSelections, wantSelections) || report.Sources[1].EmptyImportSelections == nil || len(report.Sources[1].EmptyImportSelections) != 0 {
+		t.Fatalf("import selections: %#v", report.Sources)
+	}
+	if strings.Contains(yamlOutput.String(), "destination_unresolved:") || strings.Contains(yamlOutput.String(), "version_check:") {
+		t.Fatal("legacy YAML keys present")
+	}
 	item := report.Sources[1]
-	if item.Destination != "/services" || item.Placement != "sequence_item" || !item.DestinationUnresolved {
+	if item.Destination != "/services" || item.Placement != "sequence_item" || !item.DestinationIsFallback {
 		t.Errorf("sequence item projection = %#v", item)
 	}
-	if check := item.VersionCheck; check == nil || check.Path != "/version" || !check.Version.Present || check.Version.Null || check.Version.Text != "v2" || check.Location == nil || check.Location.SourceID != "item.yml" || check.Location.Line != 4 || check.Location.Column != 2 || check.Redacted {
+	if check := item.VersionEvidence; check == nil || check.Path != "/version" || !check.Version.Present || check.Version.Null || check.Version.Text != "v2" || check.Location == nil || check.Location.SourceID != "item.yml" || check.Location.Line != 4 || check.Location.Column != 2 || check.Redacted {
 		t.Errorf("text version evidence projection = %#v", check)
 	}
 	nullSource := report.Sources[2]
-	if nullSource.Destination != "/other" || nullSource.Placement != "mapping" || nullSource.DestinationUnresolved {
+	if nullSource.Destination != "/other" || nullSource.Placement != "mapping" || nullSource.DestinationIsFallback {
 		t.Errorf("mapping projection = %#v", nullSource)
 	}
-	if check := nullSource.VersionCheck; check == nil || check.Path != "/metadata/version" || !check.Version.Present || !check.Version.Null || check.Version.Text != "" || check.Location != nil || !check.Redacted {
+	if check := nullSource.VersionEvidence; check == nil || check.Path != "/metadata/version" || !check.Version.Present || !check.Version.Null || check.Version.Text != "" || check.Location != nil || !check.Redacted {
 		t.Errorf("null/redacted version evidence projection = %#v", check)
 	}
 
@@ -122,9 +138,15 @@ func TestSourcesProjectNativeEvidenceInTextAndYAML(t *testing.T) {
 	if outcome.Kind != commandkit.OutcomeSuccess || reader.calls != 2 {
 		t.Fatalf("text source report outcome=%#v calls=%d", outcome, reader.calls)
 	}
+	if strings.Contains(textOutput.String(), "destination_unresolved:") || strings.Contains(textOutput.String(), "version_check:") {
+		t.Fatal("legacy text keys present")
+	}
+	if strings.Index(textOutput.String(), `path: "/imports/first"`) > strings.Index(textOutput.String(), `path: "/imports/second"`) {
+		t.Fatal("import selection order changed")
+	}
 	for _, fragment := range []string{
-		`id: "root"`, `destination: ""`, `placement: "mapping"`, "destination_unresolved: false", "version_check: null",
-		`destination: "/services"`, `placement: "sequence_item"`, "destination_unresolved: true", `path: "/version"`, `text: "v2"`,
+		`id: "root"`, `destination: ""`, `placement: "mapping"`, `layer: "main"`, "destination_is_fallback: false", "version_evidence: null", `path: "/imports/first"`, `location: {source_id: "root.yml", line: 3, column: 4}`, `selector: "glob"`, `path: "/imports/second"`, `location: {source_id: "", line: 0, column: 0}`, `selector: "path"`, "empty_import_selections: []",
+		`destination: "/services"`, `placement: "sequence_item"`, "destination_is_fallback: true", `path: "/version"`, `text: "v2"`,
 		`destination: "/other"`, `path: "/metadata/version"`, "null: true", `text: ""`, "location: null", "redacted: true",
 	} {
 		if !strings.Contains(textOutput.String(), fragment) {