Fix core import scene detection flow

PlotLine.Tests/Program.cs

@@ -20,6 +20,7 @@ var tests = new (string Name, Action Test)[]
     ("Truncated JSON is rejected", RejectsTruncatedJson),
     ("Repaired JSON deserialises into SceneIntelligenceScene", RepairedJsonDeserialises),
     ("Chapter Structure confidence 0. repairs and deserialises", ChapterStructureConfidenceRepairs),
+    ("Chapter Structure boundary normaliser repairs gaps and overlaps", ChapterStructureBoundaryNormaliserRepairsGapsAndOverlaps),
     ("Shared parser reports raw chapter output on unrecoverable JSON", SharedParserReportsRawOutput),
     ("Character filtering rejects generic groups", CharacterFilteringRejectsGenericGroups),
     ("Character filtering preserves titled names", CharacterFilteringPreservesTitledNames),
@@ -858,6 +859,54 @@ static void ChapterStructureConfidenceRepairs()
     Assert(result.Warnings.Any(warning => warning.Contains("$.sceneBoundaries[0].confidence", StringComparison.Ordinal)), "Repair warning did not include JSON path.");
 }
 
+static void ChapterStructureBoundaryNormaliserRepairsGapsAndOverlaps()
+{
+    var chapter = new ChapterStructureModel
+    {
+        SchemaVersion = "1.0",
+        ChapterSummary = "A chapter with several scene movements.",
+        SceneBoundaries =
+        [
+            new ChapterSceneBoundary
+            {
+                SceneNumber = 1,
+                StartParagraph = 1,
+                EndParagraph = 4,
+                StructuralSummary = "Opening scene summary with enough context for validation.",
+                Confidence = 0.8m,
+                Reason = "Opening location."
+            },
+            new ChapterSceneBoundary
+            {
+                SceneNumber = 2,
+                StartParagraph = 4,
+                EndParagraph = 7,
+                StructuralSummary = "Second scene summary with enough context for validation.",
+                Confidence = 0.8m,
+                Reason = "A new exchange begins."
+            },
+            new ChapterSceneBoundary
+            {
+                SceneNumber = 3,
+                StartParagraph = 9,
+                EndParagraph = 10,
+                StructuralSummary = "Final scene summary with enough context for validation.",
+                Confidence = 0.8m,
+                Reason = "Final turn."
+            }
+        ]
+    };
+
+    var result = ChapterStructureBoundaryNormaliser.Normalise(chapter, 10);
+    var boundaries = result.ChapterStructure?.SceneBoundaries;
+
+    Assert(boundaries is { Count: 3 }, "Boundary normaliser should preserve the detected scene count.");
+    Assert(boundaries[0].StartParagraph == 1 && boundaries[0].EndParagraph == 4, "First boundary should remain unchanged.");
+    Assert(boundaries[1].StartParagraph == 5 && boundaries[1].EndParagraph == 7, "Overlap should be repaired by moving scene 2 start to paragraph 5.");
+    Assert(boundaries[2].StartParagraph == 8 && boundaries[2].EndParagraph == 10, "Gap should be repaired by moving scene 3 start to paragraph 8.");
+    Assert(result.Issues.Count >= 2, "Boundary repairs should be reported as warnings.");
+}
+
 static void SharedParserReportsRawOutput()
 {
     const string raw = """{"schemaVersion":"1.0","sceneBoundaries":[""";
@@ -1534,7 +1583,7 @@ static void StructuralImportPersistsCanonicalSceneSourceText()
     Assert(migration.Contains("IX_SceneManuscriptSources_BookChapter", StringComparison.Ordinal), "Scene source text should be indexed for book/chapter retrieval.");
     Assert(onboarding.Contains("SaveSceneManuscriptSourcesAsync", StringComparison.Ordinal), "Structural import should persist scene source text before Word sync.");
     Assert(onboarding.IndexOf("await SaveSceneManuscriptSourcesAsync(preview, structuralScenes, result)", StringComparison.Ordinal)
-        < onboarding.IndexOf("await PublishBuildProgress(userId, preview.PreviewID, \"Updating and saving Word markers", StringComparison.Ordinal), "Scene source text should be persisted before marker sync can complete.");
+        < onboarding.IndexOf("await PublishBuildProgress(userId, preview.PreviewID, \"Updating Word document with scene markers", StringComparison.Ordinal), "Scene source text should be persisted before marker sync can complete.");
     Assert(analyzer.Contains("string.Join(Environment.NewLine + Environment.NewLine", StringComparison.Ordinal), "Scene source text should preserve paragraph separation.");
     Assert(analyzer.Contains("item.IncludeInSourceText", StringComparison.Ordinal), "Scene source text should exclude non-prose structural paragraphs such as hidden markers/separators.");
 }
@@ -1588,16 +1637,24 @@ static void CoreImportWizardOrdersScenesBeforeCharacters()
     var onboarding = File.ReadAllText(Path.Combine(root, "Services/OnboardingService.cs"));
 
     Assert(review.Contains("value=\"structure\"", StringComparison.Ordinal), "Chapter review should submit to structural import, not character review.");
+    Assert(review.Contains("Continue to Scene Detection", StringComparison.Ordinal), "Chapter review should move to scene detection with clear wording.");
+    Assert(!review.Contains("Include all scenes", StringComparison.Ordinal), "Chapter review should not show provisional scene bulk controls.");
+    Assert(!review.Contains("Exclude all scenes", StringComparison.Ordinal), "Chapter review should not show provisional scene bulk controls.");
+    Assert(!review.Contains("Include scene", StringComparison.Ordinal), "Chapter review should not show provisional scene selectors.");
+    Assert(!review.Contains("No scene breaks were detected. PlotDirector will treat this chapter as one scene for now.", StringComparison.Ordinal), "Chapter review should not expose one-scene-per-chapter fallback text.");
+    Assert(review.Split("name=\"intent\" value=\"structure\"", StringSplitOptions.None).Length - 1 == 1, "Chapter review should have exactly one structure progression action.");
     Assert(controller.Contains("var readyToImport = string.Equals(intent, \"structure\"", StringComparison.Ordinal), "Controller should treat structure intent as the scene-creation gate.");
     Assert(controller.Contains("Import the approved chapters and scenes before reviewing characters.", StringComparison.Ordinal), "Character review should be guarded until structural import exists.");
     Assert(controller.Contains("continueToCharacters || continueCharacterReview || backCharacterReview || completeCoreImport", StringComparison.Ordinal), "Structure-save errors should remain on chapter review rather than jumping to characters.");
     Assert(controller.Contains("FinaliseCharacterReviewAsync", StringComparison.Ordinal), "Character review should have a distinct post-structure finalisation path.");
     Assert(onboarding.Contains("ValidateScanStructure(review, preview);\n            review = new ManuscriptScanReviewDecision", StringComparison.Ordinal), "Saving chapter review should validate only structure before scene import.");
     Assert(onboarding.Contains("ValidateScanStructure(review, preview);\n\n        var chapterDecisions", StringComparison.Ordinal), "Building approved structure should not validate unresolved character decisions.");
+    Assert(onboarding.Contains("BuildSceneStructureSummary(chapterDecisions, structuralScenes)", StringComparison.Ordinal), "Detected scene results should be preserved for review before characters.");
     Assert(onboarding.Contains("ValidateScanReview(new ManuscriptScanReviewDecision", StringComparison.Ordinal), "Character validation should run when finalising character review.");
     Assert(onboarding.Contains("Import the approved chapters and scenes before reviewing characters.", StringComparison.Ordinal), "Character finalisation should refuse to run before structural scenes exist.");
+    Assert(complete.Contains("Detected scene structure", StringComparison.Ordinal), "Scene detection result page should show detected counts by chapter.");
     Assert(complete.Contains("Review characters", StringComparison.Ordinal), "After Word sync, the next onboarding step should be character review.");
-    Assert(complete.Contains("Word may now be closed; keep this browser workflow open", StringComparison.Ordinal), "Word safe-close must be distinct from browser/core-import completion.");
+    Assert(complete.Contains("Word may now be closed if you wish; keep this browser workflow open", StringComparison.Ordinal), "Word safe-close must be distinct from browser/core-import completion.");
 }
 
 static void CoreImportRemapsCharactersAfterReview()
@@ -1894,11 +1951,13 @@ static void OnboardingWizardKeepsCharacterPagesInsideOneMainStep()
     var storyService = File.ReadAllText(Path.Combine(AppContext.BaseDirectory, "../../../../PlotLine/Services/OnboardingStoryIntelligenceService.cs"));
 
     Assert(!header.Contains("BuildDynamicSteps", StringComparison.Ordinal), "Onboarding header should not create one top-level step per character page.");
-    Assert(header.Contains("new(\"Import Scenes\", 8)", StringComparison.Ordinal), "Onboarding header should include scene import as a distinct main step.");
+    Assert(header.Contains("new(\"Detect Scenes\", 8)", StringComparison.Ordinal), "Onboarding header should include scene detection as a distinct main step.");
     Assert(header.Contains("new(\"Review Characters\", 9)", StringComparison.Ordinal), "Onboarding header should keep character review as one main step.");
+    Assert(!header.Contains("Story Summary", StringComparison.Ordinal), "Core onboarding header should not present Story Summary as a mandatory import step.");
+    Assert(!header.Contains("Story Context", StringComparison.Ordinal), "Core onboarding header should not present Story Context as a mandatory import step.");
     Assert(review.Contains("var currentStep = isCharacterStep ? 9 : 7;", StringComparison.Ordinal), "Scan review should keep every character page on the same main wizard step.");
     Assert(review.Contains("onboarding-subprogress", StringComparison.Ordinal), "Character pagination should be shown as section-level progress.");
-    Assert(storyService.Contains("const int totalWizardSteps = 12;", StringComparison.Ordinal), "Story Intelligence summary/context should use the fixed wizard step count.");
+    Assert(storyService.Contains("const int totalWizardSteps = 10;", StringComparison.Ordinal), "Story Intelligence summary/context should use the fixed core wizard step count.");
 }
 
 static void StoryIntelligenceExperienceBootDoesNotSerialiseLiveModel()

PlotLine/Hubs/WordCompanionFollowHub.cs

@@ -213,9 +213,25 @@ public sealed class WordCompanionFollowHub(
             PreviewID = previewId
         });
 
-        var result = await onboardingService.BuildApprovedStructureAsync(
-            previewId,
-            progress => Clients.Group(PresenceGroup(userId)).SendAsync("OnboardingBuildProgress", progress));
+        OnboardingManuscriptBuildResult? result;
+        try
+        {
+            result = await onboardingService.BuildApprovedStructureAsync(
+                previewId,
+                progress => Clients.Group(PresenceGroup(userId)).SendAsync("OnboardingBuildProgress", progress));
+        }
+        catch (InvalidOperationException ex)
+        {
+            await Clients.Group(PresenceGroup(userId)).SendAsync("OnboardingBuildProgress", new OnboardingBuildProgress
+            {
+                Status = "Failed",
+                Message = ex.Message,
+                PercentComplete = 25,
+                PreviewID = previewId
+            });
+            throw new HubException(ex.Message);
+        }
+
         if (result is null)
         {
             throw new HubException("The reviewed scan could not be found.");

PlotLine/Models/ManuscriptScanModels.cs

@@ -199,9 +199,30 @@ public sealed class OnboardingManuscriptBuildResult
     public IReadOnlyList<OnboardingBuildCharacterMap> CharacterMappings { get; init; } = [];
     public IReadOnlyList<OnboardingBuildMarkerInstruction> ChapterMarkerInstructions { get; init; } = [];
     public IReadOnlyList<OnboardingBuildMarkerInstruction> SceneMarkerInstructions { get; init; } = [];
+    public IReadOnlyList<OnboardingSceneStructureSummary> SceneStructure { get; init; } = [];
     public string? MarkerWarning { get; init; }
 }
 
+public sealed class OnboardingSceneStructureSummary
+{
+    public string TemporaryChapterKey { get; init; } = string.Empty;
+    public int ChapterNumber { get; init; }
+    public string ChapterTitle { get; init; } = string.Empty;
+    public int SceneCount { get; init; }
+    public int WordCount { get; init; }
+    public IReadOnlyList<OnboardingSceneStructureDetail> Scenes { get; init; } = [];
+}
+
+public sealed class OnboardingSceneStructureDetail
+{
+    public int SceneNumberWithinChapter { get; init; }
+    public string Title { get; init; } = string.Empty;
+    public int WordCount { get; init; }
+    public string? StructuralSummary { get; init; }
+    public int StartParagraph { get; init; }
+    public int EndParagraph { get; init; }
+}
+
 public sealed class OnboardingBuildChapterMap
 {
     public string TemporaryChapterKey { get; init; } = string.Empty;

PlotLine/Services/ChapterStructureBoundaryNormaliser.cs

@@ -13,6 +13,7 @@ public static class ChapterStructureBoundaryNormaliser
             return new ChapterStructureBoundaryNormalisationResult(chapterStructure, []);
         }
 
+        var issues = new List<ValidationIssue>();
         var boundaries = chapterStructure.SceneBoundaries;
         var finalIndex = boundaries.Count - 1;
         var final = boundaries[finalIndex];
@@ -22,31 +23,23 @@ public static class ChapterStructureBoundaryNormaliser
         if (IsTrailingEmptyBoundary(final, previous, paragraphCount, phantomParagraph)
             || IsTrailingInvalidPlaceholder(final, previous, paragraphCount, phantomParagraph))
         {
-            var normalisedBoundaries = boundaries
+            boundaries = boundaries
                 .Take(finalIndex)
                 .Select((boundary, index) => CopyBoundary(boundary, index + 1))
                 .ToList();
 
-            var normalised = new ChapterStructureModel
-            {
-                SchemaVersion = chapterStructure.SchemaVersion,
-                ChapterSummary = chapterStructure.ChapterSummary,
-                SceneBoundaries = normalisedBoundaries,
-                ExtensionData = chapterStructure.ExtensionData
-            };
-
-            var issue = new ValidationIssue
+            issues.Add(new ValidationIssue
             {
                 Severity = "Warning",
                 Path = $"sceneBoundaries[{finalIndex}]",
                 Message = BuildNormalisationMessage(final, finalIndex, paragraphCount, phantomParagraph),
                 SuggestedFix = "Do not return a final scene boundary unless it references an actual supplied paragraph."
-            };
-
-            return new ChapterStructureBoundaryNormalisationResult(normalised, [issue]);
+            });
         }
 
-        return new ChapterStructureBoundaryNormalisationResult(chapterStructure, []);
+        var continuity = RepairContinuity(chapterStructure, boundaries, paragraphCount);
+        issues.AddRange(continuity.Issues);
+        return new ChapterStructureBoundaryNormalisationResult(continuity.ChapterStructure, issues);
     }
 
     public static void AddIssuesTo(ValidationResult validation, ChapterStructureBoundaryNormalisationResult normalisation)
@@ -98,6 +91,137 @@ public static class ChapterStructureBoundaryNormaliser
             ExtensionData = boundary.ExtensionData
         };
 
+    private static ChapterStructureBoundaryNormalisationResult RepairContinuity(
+        ChapterStructureModel chapterStructure,
+        IReadOnlyList<ChapterSceneBoundary> sourceBoundaries,
+        int paragraphCount)
+    {
+        if (sourceBoundaries.Count == 0)
+        {
+            return new ChapterStructureBoundaryNormalisationResult(chapterStructure, []);
+        }
+
+        var issues = new List<ValidationIssue>();
+        var ordered = sourceBoundaries
+            .Select((boundary, index) => new { Boundary = boundary, OriginalIndex = index })
+            .OrderBy(item => item.Boundary.StartParagraph ?? int.MaxValue)
+            .ThenBy(item => item.Boundary.EndParagraph ?? int.MaxValue)
+            .ToList();
+
+        if (ordered.Where((item, index) => item.OriginalIndex != index).Any())
+        {
+            issues.Add(new ValidationIssue
+            {
+                Severity = "Warning",
+                Path = "sceneBoundaries",
+                Message = "Reordered scene boundaries by paragraph position before validation.",
+                SuggestedFix = "Return scene boundaries in reading order."
+            });
+        }
+
+        var changed = issues.Count > 0;
+        var repaired = new List<ChapterSceneBoundary>();
+        var expectedStart = 1;
+        for (var index = 0; index < ordered.Count; index++)
+        {
+            var boundary = ordered[index].Boundary;
+            if (!boundary.StartParagraph.HasValue || !boundary.EndParagraph.HasValue)
+            {
+                repaired.Add(CopyBoundary(boundary, index + 1));
+                continue;
+            }
+
+            var start = boundary.StartParagraph.Value;
+            var end = boundary.EndParagraph.Value;
+            if (start != expectedStart)
+            {
+                issues.Add(new ValidationIssue
+                {
+                    Severity = "Warning",
+                    Path = $"sceneBoundaries[{index}].startParagraph",
+                    Message = $"Adjusted scene {index + 1:N0} start paragraph from {start:N0} to {expectedStart:N0} to remove an AI boundary gap or overlap.",
+                    SuggestedFix = $"Use startParagraph {expectedStart:N0} for this boundary."
+                });
+                start = expectedStart;
+                changed = true;
+            }
+
+            if (end < start)
+            {
+                issues.Add(new ValidationIssue
+                {
+                    Severity = "Warning",
+                    Path = $"sceneBoundaries[{index}].endParagraph",
+                    Message = $"Adjusted scene {index + 1:N0} end paragraph from {end:N0} to {start:N0} after boundary continuity repair.",
+                    SuggestedFix = "Return an endParagraph greater than or equal to startParagraph."
+                });
+                end = start;
+                changed = true;
+            }
+
+            if (end > paragraphCount)
+            {
+                issues.Add(new ValidationIssue
+                {
+                    Severity = "Warning",
+                    Path = $"sceneBoundaries[{index}].endParagraph",
+                    Message = $"Clamped scene {index + 1:N0} end paragraph from {end:N0} to the chapter paragraph count {paragraphCount:N0}.",
+                    SuggestedFix = $"Use an endParagraph from 1 to {paragraphCount:N0}."
+                });
+                end = paragraphCount;
+                changed = true;
+            }
+
+            repaired.Add(new ChapterSceneBoundary
+            {
+                SceneNumber = index + 1,
+                StartParagraph = start,
+                EndParagraph = end,
+                StructuralSummary = boundary.StructuralSummary,
+                Confidence = boundary.Confidence,
+                Reason = boundary.Reason,
+                ExtensionData = boundary.ExtensionData
+            });
+            expectedStart = end + 1;
+        }
+
+        if (expectedStart <= paragraphCount && repaired.Count > 0)
+        {
+            var final = repaired[^1];
+            issues.Add(new ValidationIssue
+            {
+                Severity = "Warning",
+                Path = $"sceneBoundaries[{repaired.Count - 1}].endParagraph",
+                Message = $"Extended the final scene boundary to paragraph {paragraphCount:N0} so detected scenes cover the full chapter.",
+                SuggestedFix = $"End the final scene at paragraph {paragraphCount:N0}."
+            });
+            repaired[^1] = new ChapterSceneBoundary
+            {
+                SceneNumber = final.SceneNumber,
+                StartParagraph = final.StartParagraph,
+                EndParagraph = paragraphCount,
+                StructuralSummary = final.StructuralSummary,
+                Confidence = final.Confidence,
+                Reason = final.Reason,
+                ExtensionData = final.ExtensionData
+            };
+            changed = true;
+        }
+
+        if (!changed)
+        {
+            return new ChapterStructureBoundaryNormalisationResult(chapterStructure, []);
+        }
+
+        return new ChapterStructureBoundaryNormalisationResult(new ChapterStructureModel
+        {
+            SchemaVersion = chapterStructure.SchemaVersion,
+            ChapterSummary = chapterStructure.ChapterSummary,
+            SceneBoundaries = repaired,
+            ExtensionData = chapterStructure.ExtensionData
+        }, issues);
+    }
+
     private static bool IsTrailingEmptyBoundary(
         ChapterSceneBoundary final,
         ChapterSceneBoundary previous,

PlotLine/Services/ManuscriptStructureAnalysisService.cs

@@ -43,18 +43,40 @@ public sealed class ManuscriptStructureAnalysisService(
             var prompt = BuildChapterPrompt(template, BuildChapterContextJson(request), StoryIntelligenceParagraphs.Number(paragraphs));
             var result = await client.ExecutePromptAsync(prompt, promptVersion, cancellationToken, clientStatus.ChapterStructureModel);
             var chapterJson = ExtractOutputText(result.RawResponseText);
-            var parsed = JsonSerializer.Deserialize<ChapterStructureModel>(chapterJson, JsonOptions);
+            var parseResult = StoryIntelligenceAiJsonParser.Parse<ChapterStructureModel>(chapterJson, JsonOptions);
+            if (!parseResult.Success)
+            {
+                return ManuscriptStructureAnalysisResult.Failed(
+                    request.TemporaryChapterKey,
+                    parseResult.ErrorMessage ?? "Chapter Structure JSON could not be parsed.",
+                    parseResult.RawJson);
+            }
+
+            if (parseResult.Warnings.Count > 0)
+            {
+                logger.LogWarning(
+                    "Repaired structural scene-boundary JSON. ProjectID={ProjectID} BookID={BookID} TemporaryChapterKey={TemporaryChapterKey} Warnings={Warnings}",
+                    request.ProjectID,
+                    request.BookID,
+                    request.TemporaryChapterKey,
+                    string.Join("; ", parseResult.Warnings));
+            }
+
+            var parsed = parseResult.Parsed;
             var normalisation = ChapterStructureBoundaryNormaliser.Normalise(parsed, paragraphs.Count);
             var chapter = normalisation.ChapterStructure;
             var validation = validator.Validate(chapter, paragraphs.Count);
             ChapterStructureBoundaryNormaliser.AddIssuesTo(validation, normalisation);
+            var persistedJson = normalisation.Issues.Count > 0
+                ? ChapterStructureBoundaryNormaliser.SerialiseParsedModel(chapter, normalisation, JsonOptions)
+                : parseResult.RepairedJson ?? parseResult.RawJson;
 
             if (!validation.IsValid || chapter?.SceneBoundaries is null || chapter.SceneBoundaries.Count == 0)
             {
                 return ManuscriptStructureAnalysisResult.Failed(
                     request.TemporaryChapterKey,
                     BuildValidationMessage(validation),
-                    chapterJson);
+                    persistedJson);
             }
 
             var scenes = new List<ManuscriptStructureSceneBoundary>();
@@ -68,7 +90,7 @@ public sealed class ManuscriptStructureAnalysisService(
                     return ManuscriptStructureAnalysisResult.Failed(
                         request.TemporaryChapterKey,
                         $"Scene {sceneNumber:N0} has an invalid paragraph range.",
-                        chapterJson);
+                        persistedJson);
                 }
 
                 var startMap = request.ParagraphMap.FirstOrDefault(item => item.StructuralParagraphOrdinal == start);
@@ -78,7 +100,7 @@ public sealed class ManuscriptStructureAnalysisService(
                     return ManuscriptStructureAnalysisResult.Failed(
                         request.TemporaryChapterKey,
                         $"Scene {sceneNumber:N0} could not be mapped back to a Word paragraph.",
-                        chapterJson);
+                        persistedJson);
                 }
 
                 var sceneParagraphs = paragraphs.Skip(start - 1).Take(end - start + 1).ToList();
@@ -108,7 +130,7 @@ public sealed class ManuscriptStructureAnalysisService(
                 request.TemporaryChapterKey,
                 scenes.Count);
 
-            return ManuscriptStructureAnalysisResult.Succeeded(request.TemporaryChapterKey, scenes, chapterJson);
+            return ManuscriptStructureAnalysisResult.Succeeded(request.TemporaryChapterKey, scenes, persistedJson);
         }
         catch (Exception ex) when (ex is not OperationCanceledException)
         {

PlotLine/Services/OnboardingService.cs

@@ -235,15 +235,16 @@ public sealed class OnboardingService(
             throw new InvalidOperationException("Review the scan and choose Save and continue before preparing chapters.");
         }
 
-        await PublishBuildProgress(userId, preview.PreviewID, "Creating chapters...", 10, progress);
+        await PublishBuildProgress(userId, preview.PreviewID, "Preparing approved chapters for scene detection...", 10, progress);
         ValidateScanStructure(review, preview);
 
         var chapterDecisions = review.Chapters.Where(chapter => chapter.Include).OrderBy(chapter => chapter.ChapterNumber).ToList();
 
-        await PublishBuildProgress(userId, preview.PreviewID, "Detecting scenes...", 25, progress);
+        await PublishBuildProgress(userId, preview.PreviewID, "Detecting scene boundaries...", 20, progress);
         var structuralScenes = new List<ManuscriptStructureSceneBoundary>();
-        foreach (var chapterDecision in chapterDecisions)
+        for (var chapterIndex = 0; chapterIndex < chapterDecisions.Count; chapterIndex++)
         {
+            var chapterDecision = chapterDecisions[chapterIndex];
             var chapterPreview = preview.Chapters.FirstOrDefault(item => item.TemporaryChapterKey == chapterDecision.TemporaryChapterKey)
                 ?? throw new InvalidOperationException($"The approved chapter '{chapterDecision.Title}' could not be found in the scan preview.");
             if (string.IsNullOrWhiteSpace(chapterPreview.ChapterText))
@@ -256,6 +257,13 @@ public sealed class OnboardingService(
                 throw new InvalidOperationException($"The approved chapter '{chapterDecision.Title}' does not have paragraph mapping. Scan the manuscript again before importing.");
             }
 
+            var analysisPercent = 20 + (chapterIndex * 20 / Math.Max(1, chapterDecisions.Count));
+            await PublishBuildProgress(
+                userId,
+                preview.PreviewID,
+                $"Analysing Chapter {chapterIndex + 1:N0} of {chapterDecisions.Count:N0} - {chapterDecision.Title}",
+                analysisPercent,
+                progress);
             var analysis = await structureAnalysis.AnalyseChapterAsync(new ManuscriptStructureAnalysisRequest
             {
                 ProjectID = preview.ProjectID,
@@ -276,7 +284,7 @@ public sealed class OnboardingService(
             structuralScenes.AddRange(analysis.Scenes);
         }
 
-        await PublishBuildProgress(userId, preview.PreviewID, "Preparing chapters and scenes for import...", 45, progress);
+        await PublishBuildProgress(userId, preview.PreviewID, "Validating detected scene structure...", 45, progress);
         var request = new OnboardingManuscriptBuildRequest
         {
             PreviewID = preview.PreviewID,
@@ -301,7 +309,7 @@ public sealed class OnboardingService(
             Characters = []
         };
 
-        await PublishBuildProgress(userId, preview.PreviewID, "Creating PlotDirector structure...", 60, progress);
+        await PublishBuildProgress(userId, preview.PreviewID, "Creating PlotDirector scenes...", 60, progress);
         var result = await builds.BuildAsync(userId, request)
             ?? throw new InvalidOperationException($"The project chapters could not be prepared. Approved chapters: {request.Chapters.Count}. Return to review, save your selections, and try again.");
         result = new OnboardingManuscriptBuildResult
@@ -325,13 +333,14 @@ public sealed class OnboardingService(
             CharacterMappings = result.CharacterMappings,
             ChapterMarkerInstructions = BuildChapterMarkerInstructions(preview, result.ChapterMappings),
             SceneMarkerInstructions = BuildSceneMarkerInstructions(structuralScenes, result.SceneMappings),
+            SceneStructure = BuildSceneStructureSummary(chapterDecisions, structuralScenes),
             MarkerWarning = result.MarkerWarning
         };
         await SaveStructuralChapterSourcesAsync(preview, result);
         await SaveSceneManuscriptSourcesAsync(preview, structuralScenes, result);
         await coreImportCharacterMapping.MapBookAsync(preview.ProjectID, preview.BookID);
         await scanPreviews.SaveBuildResultAsync(userId, result);
-        await PublishBuildProgress(userId, preview.PreviewID, "Updating and saving Word markers. Keep Word and this browser page open.", 90, progress);
+        await PublishBuildProgress(userId, preview.PreviewID, "Updating Word document with scene markers. Keep Word open while the document is saved.", 90, progress);
         return result;
     }
 
@@ -444,6 +453,7 @@ public sealed class OnboardingService(
             CharacterMappings = characterMappings,
             ChapterMarkerInstructions = build.ChapterMarkerInstructions,
             SceneMarkerInstructions = build.SceneMarkerInstructions,
+            SceneStructure = build.SceneStructure,
             MarkerWarning = build.MarkerWarning
         };
 
@@ -500,6 +510,37 @@ public sealed class OnboardingService(
             .ToList();
     }
 
+    private static IReadOnlyList<OnboardingSceneStructureSummary> BuildSceneStructureSummary(
+        IReadOnlyList<ManuscriptScanChapterReviewDecision> chapters,
+        IReadOnlyList<ManuscriptStructureSceneBoundary> scenes)
+        => chapters
+            .OrderBy(chapter => chapter.ChapterNumber)
+            .Select(chapter =>
+            {
+                var chapterScenes = scenes
+                    .Where(scene => string.Equals(scene.TemporaryChapterKey, chapter.TemporaryChapterKey, StringComparison.Ordinal))
+                    .OrderBy(scene => scene.SceneNumberWithinChapter)
+                    .ToList();
+                return new OnboardingSceneStructureSummary
+                {
+                    TemporaryChapterKey = chapter.TemporaryChapterKey,
+                    ChapterNumber = chapter.ChapterNumber,
+                    ChapterTitle = chapter.Title,
+                    SceneCount = chapterScenes.Count,
+                    WordCount = chapterScenes.Sum(scene => scene.WordCount),
+                    Scenes = chapterScenes.Select(scene => new OnboardingSceneStructureDetail
+                    {
+                        SceneNumberWithinChapter = scene.SceneNumberWithinChapter,
+                        Title = scene.Title,
+                        WordCount = scene.WordCount,
+                        StructuralSummary = scene.StructuralSummary,
+                        StartParagraph = scene.StartParagraph,
+                        EndParagraph = scene.EndParagraph
+                    }).ToList()
+                };
+            })
+            .ToList();
+
     private async Task SaveStructuralChapterSourcesAsync(ManuscriptScanPreview preview, OnboardingManuscriptBuildResult result)
     {
         var chapterIds = result.ChapterMappings.ToDictionary(item => item.TemporaryChapterKey, item => item.ChapterID, StringComparer.Ordinal);
@@ -703,6 +744,9 @@ public sealed class OnboardingService(
 
         var selectedChapterKeys = chapters.Where(chapter => chapter.Include).Select(chapter => chapter.TemporaryChapterKey).ToHashSet(StringComparer.Ordinal);
         var selectedScenes = chapters.SelectMany(chapter => chapter.Scenes).Where(scene => scene.Include && selectedChapterKeys.Contains(scene.TemporaryChapterKey)).ToList();
+        var selectedChapterWordCount = chapters
+            .Where(chapter => chapter.Include)
+            .Sum(chapter => chapter.WordCount);
 
         return new ManuscriptScanReviewViewModel
         {
@@ -718,7 +762,7 @@ public sealed class OnboardingService(
             SelectedChapterCount = selectedChapterKeys.Count,
             SelectedSceneCount = selectedScenes.Count,
             SelectedCharacterCount = characters.Count(character => character.Include && !character.IsAlias && !string.Equals(character.Category, "Excluded", StringComparison.OrdinalIgnoreCase)),
-            SelectedWordCount = selectedScenes.Sum(scene => scene.WordCount),
+            SelectedWordCount = selectedChapterWordCount,
             Chapters = chapters,
             CharacterCandidates = characters,
             ExistingCharacterOptions = existingOptions
@@ -764,18 +808,12 @@ public sealed class OnboardingService(
     private static void ValidateScanStructure(ManuscriptScanReviewDecision review, ManuscriptScanPreview preview)
     {
         var previewChapters = preview.Chapters.ToDictionary(chapter => chapter.TemporaryChapterKey, StringComparer.Ordinal);
-        var previewScenes = preview.Scenes.ToDictionary(scene => scene.TemporarySceneKey, StringComparer.Ordinal);
         var includedChapterKeys = review.Chapters.Where(chapter => chapter.Include).Select(chapter => chapter.TemporaryChapterKey).ToHashSet(StringComparer.Ordinal);
         if (includedChapterKeys.Count == 0)
         {
             throw new InvalidOperationException("Choose at least one chapter before continuing.");
         }
 
-        if (!review.Scenes.Any(scene => scene.Include && includedChapterKeys.Contains(scene.TemporaryChapterKey)))
-        {
-            throw new InvalidOperationException("Choose at least one scene before continuing.");
-        }
-
         if (review.Chapters.Where(chapter => chapter.Include).Any(chapter => string.IsNullOrWhiteSpace(chapter.Title)))
         {
             throw new InvalidOperationException("Every included chapter needs a title.");
@@ -786,24 +824,6 @@ public sealed class OnboardingService(
             throw new InvalidOperationException("Chapter order is not valid. Restore the scan defaults and try again.");
         }
 
-        foreach (var scene in review.Scenes.Where(scene => scene.Include))
-        {
-            if (!includedChapterKeys.Contains(scene.TemporaryChapterKey))
-            {
-                throw new InvalidOperationException("Included scenes must belong to included chapters.");
-            }
-
-            if (!previewScenes.TryGetValue(scene.TemporarySceneKey, out var previewScene))
-            {
-                throw new InvalidOperationException("One of the selected scenes no longer exists in the scan preview.");
-            }
-
-            if (previewScene.WordCount <= 0 && !scene.AllowZeroWords)
-            {
-                throw new InvalidOperationException("Included scenes with no words must be explicitly allowed.");
-            }
-        }
-
         foreach (var chapter in review.Chapters)
         {
             if (!previewChapters.ContainsKey(chapter.TemporaryChapterKey))

PlotLine/Services/OnboardingStoryIntelligenceService.cs

@@ -72,8 +72,8 @@ public sealed class OnboardingStoryIntelligenceService(
         var existingBatch = await batchStore.GetLatestForPreviewAsync(userId, preview.PreviewID);
         var missingTextCount = included.Count(chapter => string.IsNullOrWhiteSpace(chapter.Preview.ChapterText));
         const int storySummaryStep = 10;
-        const int storyContextStep = 11;
-        const int totalWizardSteps = 12;
+        const int storyContextStep = 10;
+        const int totalWizardSteps = 10;
         return new StoryIntelligenceOverviewViewModel
         {
             PreviewID = preview.PreviewID,

PlotLine/ViewModels/OnboardingViewModels.cs

@@ -128,8 +128,8 @@ public sealed class StoryIntelligenceOverviewViewModel
     public int ApprovedWordCount { get; init; }
     public int MissingChapterTextCount { get; init; }
     public int WizardCurrentStep { get; init; } = 10;
-    public int WizardContextStep { get; init; } = 11;
-    public int WizardTotalSteps { get; init; } = 12;
+    public int WizardContextStep { get; init; } = 10;
+    public int WizardTotalSteps { get; init; } = 10;
     public string? Message { get; init; }
     public Guid? ExistingBatchID { get; init; }
     public StoryIntelligenceJobProgress? ExistingJob { get; init; }

PlotLine/Views/Onboarding/BuildComplete.cshtml

@@ -6,12 +6,12 @@
 
 <section class="onboarding-shell" aria-labelledby="build-complete-title">
     <div class="onboarding-panel onboarding-review-panel">
-        <partial name="_OnboardingJourneyHeader" model="@(new OnboardingJourneyHeaderViewModel { CurrentStep = coreComplete ? 12 : 9, TotalSteps = 12 })" />
+        <partial name="_OnboardingJourneyHeader" model="@(new OnboardingJourneyHeaderViewModel { CurrentStep = coreComplete ? 10 : 8, TotalSteps = 10 })" />
         <div class="onboarding-copy">
-            <p class="eyebrow">Core Import Complete</p>
+            <p class="eyebrow">@(coreComplete ? "Core Import Complete" : "Scene Detection Complete")</p>
             <div class="onboarding-success-heading">
                 <span aria-hidden="true">&check;</span>
-                <h1 id="build-complete-title">Your manuscript has been imported.</h1>
+                <h1 id="build-complete-title">@(coreComplete ? "Core import is complete." : "Scene structure has been detected.")</h1>
             </div>
             <p>
                 @if (coreComplete)
@@ -22,11 +22,11 @@
                 {
                     @:This manuscript structure has already been created in PlotDirector, so nothing was duplicated. Review characters to complete the core import.
                 }
-                else
-                {
-                    @:PlotDirector created the approved chapters and scenes, persisted their manuscript text, updated the Word markers, and saved the manuscript. Word may now be closed; keep this browser workflow open to review characters.
-                }
-            </p>
+            else
+            {
+                @:PlotDirector created the approved chapters and detected scenes, persisted their manuscript text, updated the Word markers, and saved the manuscript. Word may now be closed if you wish; keep this browser workflow open to review characters.
+            }
+        </p>
             @if (!string.IsNullOrWhiteSpace(Model.MarkerWarning))
             {
                 <p class="text-warning">@Model.MarkerWarning</p>
@@ -52,6 +52,41 @@
             </div>
         </div>
 
+        @if (Model.SceneStructure.Any())
+        {
+            <section class="onboarding-complete-next" aria-label="Detected scene structure">
+                <h2>Detected scene structure</h2>
+                <div class="onboarding-review-chapters">
+                    @foreach (var chapter in Model.SceneStructure)
+                    {
+                        <details class="onboarding-review-chapter">
+                            <summary>
+                                <span>Chapter @chapter.ChapterNumber</span>
+                                <strong>@chapter.ChapterTitle</strong>
+                                <small>@chapter.SceneCount.ToString("N0") scene@(chapter.SceneCount == 1 ? string.Empty : "s") / @chapter.WordCount.ToString("N0") words</small>
+                            </summary>
+                            @if (chapter.Scenes.Any(scene => !string.IsNullOrWhiteSpace(scene.StructuralSummary)))
+                            {
+                                <ol>
+                                    @foreach (var scene in chapter.Scenes)
+                                    {
+                                        <li>
+                                            <strong>@scene.Title</strong>
+                                            <span>@scene.WordCount.ToString("N0") words / paragraphs @scene.StartParagraph-@scene.EndParagraph</span>
+                                            @if (!string.IsNullOrWhiteSpace(scene.StructuralSummary))
+                                            {
+                                                <p>@scene.StructuralSummary</p>
+                                            }
+                                        </li>
+                                    }
+                                </ol>
+                            }
+                        </details>
+                    }
+                </div>
+            </section>
+        }
+
         @if (coreComplete)
         {
             <section class="onboarding-complete-next">

PlotLine/Views/Onboarding/Index.cshtml

@@ -239,11 +239,11 @@
         else
         {
             <div class="onboarding-copy">
-                <p class="eyebrow">Step @currentJourneyOrder of 12</p>
+                <p class="eyebrow">Step @currentJourneyOrder of 10</p>
                 @if (Model.IsMicrosoftWordPath)
                 {
-                    <h1 id="onboarding-title">@(structureReadyToImport ? "Import scenes and Word markers" : currentJourneyOrder >= 6 ? "Scan Manuscript" : "Connect your Word Companion")</h1>
-                    <p>@(structureReadyToImport ? "Keep Word and this browser page open while PlotDirector detects scene boundaries, creates the manuscript structure, inserts bookmark IDs, and saves the document." : "Open your manuscript in Word and start the Companion. When it is connected, use the wizard button below to scan and continue.")</p>
+                    <h1 id="onboarding-title">@(structureReadyToImport ? "Detect Scenes" : currentJourneyOrder >= 6 ? "Scan Manuscript" : "Connect your Word Companion")</h1>
+                    <p>@(structureReadyToImport ? "PlotDirector will now analyse the approved chapters to determine where each scene begins and ends. Keep Word open while scene markers are added and the document is saved." : "Open your manuscript in Word and start the Companion. When it is connected, use the wizard button below to scan and continue.")</p>
                 }
                 else
                 {
@@ -293,10 +293,6 @@
                                     <span>Chapters</span>
                                     <strong data-onboarding-scan-chapters>@Model.ScanState.ChapterCount</strong>
                                 </div>
-                                <div>
-                                    <span>Scenes</span>
-                                    <strong data-onboarding-scan-scenes>@Model.ScanState.SceneCount</strong>
-                                </div>
                                 <div>
                                     <span>Characters</span>
                                     <strong data-onboarding-scan-characters>@Model.ScanState.CharacterCandidateCount</strong>
@@ -310,8 +306,8 @@
                             {
                                 <div class="onboarding-build-panel" data-onboarding-build-panel>
                                     <div>
-                                        <p class="onboarding-scan-next">Review saved. PlotDirector can now import the approved manuscript structure.</p>
-                                        <p class="onboarding-build-message" data-onboarding-build-message>Next: detect scene boundaries, create PlotDirector scenes, then update and save Word markers.</p>
+                                        <p class="onboarding-scan-next">Chapter review saved. PlotDirector can now detect the scene structure.</p>
+                                        <p class="onboarding-build-message" data-onboarding-build-message>Next: analyse the approved chapters and create the detected scenes.</p>
                                     </div>
                                     <strong data-onboarding-build-percent></strong>
                                     <div class="onboarding-scan-progress onboarding-build-progress" aria-hidden="true">
@@ -340,7 +336,7 @@
                             type="button"
                             data-onboarding-build-start
                             data-preview-id="@Model.ScanState.PreviewID">
-                        Import manuscript
+                        Detect Scenes
                     </button>
                 }
                 else if (Model.IsMicrosoftWordPath && Model.ScanState.IsComplete)
@@ -461,13 +457,13 @@
             OnboardingSteps.WritingSoftware => 3,
             OnboardingSteps.Project => 4,
             OnboardingSteps.Book => 5,
-            OnboardingSteps.NextPathPreview when !model.IsMicrosoftWordPath => 11,
+            OnboardingSteps.NextPathPreview when !model.IsMicrosoftWordPath => 10,
             OnboardingSteps.NextPathPreview when string.Equals(model.ScanState.ReviewStatus, ManuscriptScanReviewStatuses.ReadyToImport, StringComparison.Ordinal) => 8,
             OnboardingSteps.NextPathPreview when model.ScanState.IsComplete => 7,
             OnboardingSteps.NextPathPreview when model.ScanState.IsRunning || model.ScanState.IsFailed || model.ScanState.PercentComplete.HasValue => 6,
             OnboardingSteps.NextPathPreview when model.CompanionPresence.IsConnected => 6,
             OnboardingSteps.NextPathPreview => 6,
-            OnboardingSteps.Complete => 12,
+            OnboardingSteps.Complete => 10,
             _ => 1
         };
     }

PlotLine/Views/Onboarding/ScanReview.cshtml

@@ -32,7 +32,7 @@
     var characterPage = Math.Clamp(requestedCharacterPage, 1, characterReviewPageCount);
     var currentCharacters = primaryCharacters.Skip((characterPage - 1) * characterPageSize).Take(characterPageSize).ToList();
     var currentStep = isCharacterStep ? 9 : 7;
-    const int totalSteps = 12;
+    const int totalSteps = 10;
     var characterPageTitle = $"Review Characters {characterPage} of {primaryCharacterPageCount}";
     var duplicateCanonicalNames = primaryCharacters
         .Where(candidate => candidate.Include && string.IsNullOrWhiteSpace(candidate.AliasTargetTemporaryCharacterKey))
@@ -67,7 +67,7 @@
         <div class="onboarding-copy">
             <p class="eyebrow">Step @currentStep of @totalSteps</p>
             <h1 id="scan-review-title">@(isCharacterStep ? "Review Characters" : "Review Chapters")</h1>
-            <p>@(isCharacterStep ? "Review this page of detected names and aliases, then continue through the character section." : "Confirm the chapter structure before PlotDirector detects scenes with AI and updates Word markers.")</p>
+            <p>@(isCharacterStep ? "Review this page of detected names and aliases, then continue through the character section." : "Confirm which chapters should be imported before PlotDirector analyses their scene structure.")</p>
         </div>
 
         @if (TempData["OnboardingReviewMessage"] is string reviewMessage)
@@ -87,10 +87,6 @@
                 <span>Chapters</span>
                 <strong>@Model.SelectedChapterCount / @Model.ChapterCount</strong>
             </div>
-            <div>
-                <span>Scenes</span>
-                <strong>@Model.SelectedSceneCount / @Model.SceneCount</strong>
-            </div>
             <div>
                 <span>Characters</span>
                 <strong>@Model.SelectedCharacterCount / @visibleCharacterCount</strong>
@@ -106,8 +102,6 @@
             <div class="onboarding-review-tools" data-review-tools>
                 <button class="btn btn-sm btn-outline-secondary" type="button" data-bulk-target="chapter" data-bulk-state="true">Include all chapters</button>
                 <button class="btn btn-sm btn-outline-secondary" type="button" data-bulk-target="chapter" data-bulk-state="false">Exclude all chapters</button>
-                <button class="btn btn-sm btn-outline-secondary" type="button" data-bulk-target="scene" data-bulk-state="true">Include all scenes</button>
-                <button class="btn btn-sm btn-outline-secondary" type="button" data-bulk-target="scene" data-bulk-state="false">Exclude all scenes</button>
                 <button class="btn btn-sm btn-outline-secondary" type="reset">Restore scan defaults</button>
             </div>
         }
@@ -124,7 +118,6 @@
                     <div class="onboarding-review-chapters">
                         @{
                             var chapterIndex = 0;
-                            var sceneIndex = 0;
                         }
                         @foreach (var chapter in Model.Chapters)
                         {
@@ -132,7 +125,7 @@
                                 <summary>
                                     <span>Chapter @chapter.ChapterNumber</span>
                                     <strong>@chapter.ReviewTitle</strong>
-                                    <small>@chapter.WordCount.ToString("N0") words / @chapter.Scenes.Count scene@(chapter.Scenes.Count == 1 ? string.Empty : "s")</small>
+                                    <small>@chapter.WordCount.ToString("N0") words</small>
                                 </summary>
                                 <input type="hidden" name="Chapters[@chapterIndex].TemporaryChapterKey" value="@chapter.TemporaryChapterKey" />
                                 <input type="hidden" name="Chapters[@chapterIndex].ChapterNumber" value="@chapter.ChapterNumber" />
@@ -145,55 +138,11 @@
                                     Chapter title
                                     <input class="form-control" name="Chapters[@chapterIndex].Title" value="@chapter.ReviewTitle" />
                                 </label>
-
-                                @if (chapter.Scenes.Any())
-                                {
-                                    <ol>
-                                        @foreach (var scene in chapter.Scenes)
-                                        {
-                                            <li>
-                                                <input type="hidden" name="Scenes[@sceneIndex].TemporarySceneKey" value="@scene.TemporarySceneKey" />
-                                                <input type="hidden" name="Scenes[@sceneIndex].TemporaryChapterKey" value="@scene.TemporaryChapterKey" />
-                                                <input type="hidden" name="Scenes[@sceneIndex].SceneNumberWithinChapter" value="@scene.SceneNumberWithinChapter" />
-                                                <label class="onboarding-review-toggle">
-                                                    <input type="checkbox" name="Scenes[@sceneIndex].Include" value="true" checked="@scene.Include" data-review-kind="scene" />
-                                                    <input type="hidden" name="Scenes[@sceneIndex].Include" value="false" />
-                                                    Include scene
-                                                </label>
-                                                <label class="onboarding-review-field">
-                                                    Scene title
-                                                    <input class="form-control" name="Scenes[@sceneIndex].Title" value="@scene.ReviewTitle" placeholder="Scene @scene.SceneNumberWithinChapter" />
-                                                </label>
-                                                <span>@scene.WordCount.ToString("N0") words</span>
-                                                @if (scene.WordCount == 0)
-                                                {
-                                                    <label class="onboarding-review-toggle">
-                                                        <input type="checkbox" name="Scenes[@sceneIndex].AllowZeroWords" value="true" />
-                                                        <input type="hidden" name="Scenes[@sceneIndex].AllowZeroWords" value="false" />
-                                                        Allow empty scene
-                                                    </label>
-                                                }
-                                                @if (!string.IsNullOrWhiteSpace(scene.OpeningTextPreview))
-                                                {
-                                                    <p>@scene.OpeningTextPreview</p>
-                                                }
-                                            </li>
-                                            sceneIndex++;
-                                        }
-                                    </ol>
-                                }
-                                else
-                                {
-                                    <p>No scene breaks were detected. PlotDirector will treat this chapter as one scene for now.</p>
-                                }
                             </details>
                             chapterIndex++;
                         }
                     </div>
                 }
-                <div class="onboarding-actions onboarding-actions--inline">
-                    <button class="btn btn-primary" type="submit" name="intent" value="structure">Save chapter review</button>
-                </div>
             </div>
 
             <aside class="onboarding-review-section" data-scan-review-panel="characters" hidden="@(!isCharacterStep)">
@@ -364,7 +313,7 @@
             else
             {
                 <a class="btn btn-outline-secondary" asp-controller="Onboarding" asp-action="Index">Back to setup</a>
-                <button class="btn btn-primary" type="submit" name="intent" value="structure">Save chapter review</button>
+                <button class="btn btn-primary" type="submit" name="intent" value="structure">Continue to Scene Detection</button>
             }
         </div>
     </form>

PlotLine/Views/Onboarding/_OnboardingJourneyHeader.cshtml

@@ -36,11 +36,9 @@
         new("Book", 5),
         new("Connect Word", 6),
         new("Review Chapters", 7),
-        new("Import Scenes", 8),
+        new("Detect Scenes", 8),
         new("Review Characters", 9),
-        new("Story Summary", 10),
-        new("Story Context", 11),
-        new("Complete", 12)
+        new("Complete", 10)
     ];
 
     private static string StepClass(int order, int currentStep)

PlotLine/wwwroot/js/word-companion-presence.js

@@ -226,7 +226,7 @@
         node.classList.add("is-running");
       });
       document.querySelectorAll("[data-onboarding-build-message]").forEach((node) => {
-        node.textContent = "Preparing the approved chapters...";
+        node.textContent = "Preparing approved chapters for scene detection...";
       });
       document.querySelectorAll("[data-onboarding-build-percent]").forEach((node) => {
         node.textContent = "0%";
@@ -238,7 +238,7 @@
         const result = await connection.invoke("StartOnboardingProjectBuild", previewId);
         pendingBuildPreviewId = field(result, "previewID", "PreviewID") || previewId;
         document.querySelectorAll("[data-onboarding-build-message]").forEach((node) => {
-          node.textContent = "Updating and saving Word markers. Keep Word and this browser page open.";
+          node.textContent = "Updating Word document with scene markers. Keep Word open while the document is saved.";
         });
       } catch (error) {
         button.disabled = false;