diff --git a/cmd/bd/create.go b/cmd/bd/create.go
index 353a4944..8a264620 100644
--- a/cmd/bd/create.go
+++ b/cmd/bd/create.go
@@ -392,7 +392,7 @@ func init() {
 	createCmd.Flags().String("title", "", "Issue title (alternative to positional argument)")
 	createCmd.Flags().Bool("silent", false, "Output only the issue ID (for scripting)")
 	registerPriorityFlag(createCmd, "2")
-	createCmd.Flags().StringP("type", "t", "task", "Issue type (bug|feature|task|epic|chore)")
+	createCmd.Flags().StringP("type", "t", "task", "Issue type (bug|feature|task|epic|chore|merge-request)")
 	registerCommonIssueFlags(createCmd)
 	createCmd.Flags().StringSliceP("labels", "l", []string{}, "Labels (comma-separated)")
 	createCmd.Flags().StringSlice("label", []string{}, "Alias for --labels")
diff --git a/cmd/bd/list.go b/cmd/bd/list.go
index e86945b6..63488b8e 100644
--- a/cmd/bd/list.go
+++ b/cmd/bd/list.go
@@ -519,7 +519,7 @@ func init() {
 	listCmd.Flags().StringP("status", "s", "", "Filter by status (open, in_progress, blocked, closed)")
 	registerPriorityFlag(listCmd, "")
 	listCmd.Flags().StringP("assignee", "a", "", "Filter by assignee")
-	listCmd.Flags().StringP("type", "t", "", "Filter by type (bug, feature, task, epic, chore)")
+	listCmd.Flags().StringP("type", "t", "", "Filter by type (bug, feature, task, epic, chore, merge-request)")
 	listCmd.Flags().StringSliceP("label", "l", []string{}, "Filter by labels (AND: must have ALL). Can combine with --label-any")
 	listCmd.Flags().StringSlice("label-any", []string{}, "Filter by labels (OR: must have AT LEAST ONE). Can combine with --label")
 	listCmd.Flags().String("title", "", "Filter by title text (case-insensitive substring match)")
diff --git a/cmd/bd/show.go b/cmd/bd/show.go
index b7d084f9..eaabb514 100644
--- a/cmd/bd/show.go
+++ b/cmd/bd/show.go
@@ -1313,7 +1313,7 @@ func init() {
 	updateCmd.Flags().StringP("status", "s", "", "New status")
 	registerPriorityFlag(updateCmd, "")
 	updateCmd.Flags().String("title", "", "New title")
-	updateCmd.Flags().StringP("type", "t", "", "New type (bug|feature|task|epic|chore)")
+	updateCmd.Flags().StringP("type", "t", "", "New type (bug|feature|task|epic|chore|merge-request)")
 	registerCommonIssueFlags(updateCmd)
 	updateCmd.Flags().String("notes", "", "Additional notes")
 	updateCmd.Flags().String("acceptance-criteria", "", "DEPRECATED: use --acceptance")
diff --git a/internal/types/types.go b/internal/types/types.go
index a87c00ea..6f6f4bfd 100644
--- a/internal/types/types.go
+++ b/internal/types/types.go
@@ -218,18 +218,19 @@ type IssueType string
 
 // Issue type constants
 const (
-	TypeBug     IssueType = "bug"
-	TypeFeature IssueType = "feature"
-	TypeTask    IssueType = "task"
-	TypeEpic    IssueType = "epic"
-	TypeChore   IssueType = "chore"
-	TypeMessage IssueType = "message" // Ephemeral communication between workers
+	TypeBug          IssueType = "bug"
+	TypeFeature      IssueType = "feature"
+	TypeTask         IssueType = "task"
+	TypeEpic         IssueType = "epic"
+	TypeChore        IssueType = "chore"
+	TypeMessage      IssueType = "message"       // Ephemeral communication between workers
+	TypeMergeRequest IssueType = "merge-request" // Merge queue entry for refinery processing
 )
 
 // IsValid checks if the issue type value is valid
 func (t IssueType) IsValid() bool {
 	switch t {
-	case TypeBug, TypeFeature, TypeTask, TypeEpic, TypeChore, TypeMessage:
+	case TypeBug, TypeFeature, TypeTask, TypeEpic, TypeChore, TypeMessage, TypeMergeRequest:
 		return true
 	}
 	return false