feat(tools): add duplicate audit report

internal/mcpserver/server.go

@@ -19,24 +19,25 @@ const (
 )
 
 type ToolSet struct {
-	Version       *tools.VersionTool
-	Capture       *tools.CaptureTool
-	Search        *tools.SearchTool
-	List          *tools.ListTool
-	Stats         *tools.StatsTool
-	Get           *tools.GetTool
-	Update        *tools.UpdateTool
-	Delete        *tools.DeleteTool
-	Archive       *tools.ArchiveTool
-	Projects      *tools.ProjectsTool
-	Context       *tools.ContextTool
-	Recall        *tools.RecallTool
-	Summarize     *tools.SummarizeTool
-	Links         *tools.LinksTool
-	Files         *tools.FilesTool
-	Backfill      *tools.BackfillTool
-	Reparse       *tools.ReparseMetadataTool
-	RetryMetadata *tools.RetryEnrichmentTool
+	Version        *tools.VersionTool
+	Capture        *tools.CaptureTool
+	Search         *tools.SearchTool
+	List           *tools.ListTool
+	Stats          *tools.StatsTool
+	Get            *tools.GetTool
+	Update         *tools.UpdateTool
+	Delete         *tools.DeleteTool
+	Archive        *tools.ArchiveTool
+	DuplicateAudit *tools.DuplicateAuditTool
+	Projects       *tools.ProjectsTool
+	Context        *tools.ContextTool
+	Recall         *tools.RecallTool
+	Summarize      *tools.SummarizeTool
+	Links          *tools.LinksTool
+	Files          *tools.FilesTool
+	Backfill       *tools.BackfillTool
+	Reparse        *tools.ReparseMetadataTool
+	RetryMetadata  *tools.RetryEnrichmentTool
 	//Maintenance   *tools.MaintenanceTool
 	Skills               *tools.SkillsTool
 	Personas             *tools.AgentPersonasTool
@@ -227,6 +228,12 @@ func registerThoughtTools(server *mcp.Server, logger *slog.Logger, toolSet ToolS
 	}, toolSet.Archive.Handle); err != nil {
 		return err
 	}
+	if err := addTool(server, logger, &mcp.Tool{
+		Name:        "audit_duplicates",
+		Description: "Dry-run duplicate audit for projects, thoughts, and metadata normalization candidates; performs no writes.",
+	}, toolSet.DuplicateAudit.Handle); err != nil {
+		return err
+	}
 	if err := addTool(server, logger, &mcp.Tool{
 		Name:        "summarize_thoughts",
 		Description: "LLM summary of a filtered set of thoughts.",
@@ -764,6 +771,7 @@ func BuildToolCatalog() []tools.ToolEntry {
 		{Name: "update_thought", Description: "Update thought content or merge metadata.", Category: "thoughts"},
 		{Name: "delete_thought", Description: "Hard-delete a thought by id.", Category: "thoughts"},
 		{Name: "archive_thought", Description: "Archive a thought so it is hidden from default search and listing.", Category: "thoughts"},
+		{Name: "audit_duplicates", Description: "Dry-run duplicate audit for exact/normalized project names, thought content, and metadata value variants. Reports candidates and recommendations; performs no writes.", Category: "admin"},
 		{Name: "summarize_thoughts", Description: "Produce an LLM prose summary of a filtered or searched set of thoughts.", Category: "thoughts"},
 		{Name: "recall_context", Description: "Recall semantically relevant and recent context for prompt injection. Combines vector similarity with recency. Falls back to full-text search when no embeddings exist.", Category: "thoughts"},
 		{Name: "link_thoughts", Description: "Create a typed relationship between two thoughts.", Category: "thoughts"},