diff --git a/NucleicRemote/NucleicRemote/Views/ApprovalCardView.swift b/NucleicRemote/NucleicRemote/Views/ApprovalCardView.swift
index f63cee1..e697b37 100644
--- a/NucleicRemote/NucleicRemote/Views/ApprovalCardView.swift
+++ b/NucleicRemote/NucleicRemote/Views/ApprovalCardView.swift
@@ -68,7 +68,7 @@ struct ApprovalCardView: View {
             // allow: every one must be a deliberate, one-off approval, never granted in a
             // way that lets the next one through unseen. Mirrors the Mac.
             if approval.risk != .destructive,
-               approval.toolName != "mcp__nucleic__copy_artifact",
+               !SandboxToolDisplay.isCopyArtifact(approval.toolName),
                !store.capabilities.allowAlwaysScopes.isEmpty {
                 Menu("Allow always…") {
                     ForEach(store.capabilities.allowAlwaysScopes, id: \.self) { scope in
@@ -92,15 +92,24 @@ struct ApprovalCardView: View {
 
     /// The kinds of detail an approval carries, resolved once so the body and `hasDetail` agree.
     /// A git commit reads as a structured commit card (subject + Markdown body); a host_exec gate
-    /// lays out its parsed breakdown + exact command; every other tool shows its untruncated detail.
+    /// lays out its parsed breakdown + exact command; copy_artifact labels its two path endpoints;
+    /// every other tool shows its untruncated detail.
     private enum Detail {
         case commit(GitCommitSummary.Commit, command: String)
         case host(HostCommandSummary.Summary, command: String)
+        case copyArtifact(source: String, destination: String)
         case text(String)
         case none
     }
 
     private var detail: Detail {
+        if SandboxToolDisplay.isCopyArtifact(approval.toolName),
+           let source = approval.input["source"]?.stringValue,
+           !source.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty,
+           let destination = approval.input["destination"]?.stringValue,
+           !destination.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty {
+            return .copyArtifact(source: source, destination: destination)
+        }
         if let command = approval.input["command"]?.stringValue,
            let commit = GitCommitSummary.parse(command) {
             return .commit(commit, command: command)
@@ -128,6 +137,8 @@ struct ApprovalCardView: View {
             HostCommandBreakdown(summary: parsed)
             Text("Exact command").font(.caption2.weight(.semibold)).foregroundStyle(.secondary)
             ApprovalDetailBox(text: Self.truncatedForDisplay(command))
+        case .copyArtifact(let source, let destination):
+            CopyArtifactApprovalDetail(source: source, destination: destination)
         case .text(let text):
             ApprovalDetailBox(text: Self.truncatedForDisplay(text))
         case .none:
@@ -164,6 +175,52 @@ struct ApprovalCardView: View {
     }
 }
 
+/// The mobile rendering of a `copy_artifact` gate mirrors the Mac: both paths remain verbatim and
+/// selectable, but the host -> worktree boundary is explicit instead of buried in a JSON object.
+private struct CopyArtifactApprovalDetail: View {
+    let source: String
+    let destination: String
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 9) {
+            pathRow(label: "Source on host", systemImage: "desktopcomputer", path: source)
+
+            HStack(spacing: 8) {
+                Image(systemName: "arrow.down")
+                    .font(.caption.weight(.semibold))
+                    .foregroundStyle(.orange)
+                    .frame(width: 16)
+                Divider()
+            }
+
+            pathRow(label: "Destination in worktree", systemImage: "folder", path: destination)
+        }
+        .padding(10)
+        .frame(maxWidth: .infinity, alignment: .leading)
+        .background(Color(.secondarySystemBackground), in: RoundedRectangle(cornerRadius: 8))
+    }
+
+    private func pathRow(label: String, systemImage: String, path: String) -> some View {
+        HStack(alignment: .top, spacing: 8) {
+            Image(systemName: systemImage)
+                .font(.callout)
+                .foregroundStyle(.orange)
+                .frame(width: 16)
+            VStack(alignment: .leading, spacing: 3) {
+                Text(label)
+                    .font(.caption2.weight(.semibold))
+                    .foregroundStyle(.secondary)
+                Text(path)
+                    .font(.caption.monospaced())
+                    .textSelection(.enabled)
+                    .multilineTextAlignment(.leading)
+                    .fixedSize(horizontal: false, vertical: true)
+                    .frame(maxWidth: .infinity, alignment: .leading)
+            }
+        }
+    }
+}
+
 /// Claude's plan-mode exit is a review, not an ordinary permission gate. It always pauses even
 /// when Auto is enabled and offers the same three outcomes as Claude's first-party surface:
 /// accept the plan, deny it and remain in plan mode, or return concrete revision feedback.
diff --git a/NucleicRemote/NucleicRemote/Views/Transcript/SandboxToolDisplay.swift b/NucleicRemote/NucleicRemote/Views/Transcript/SandboxToolDisplay.swift
index 0407758..792805a 100644
--- a/NucleicRemote/NucleicRemote/Views/Transcript/SandboxToolDisplay.swift
+++ b/NucleicRemote/NucleicRemote/Views/Transcript/SandboxToolDisplay.swift
@@ -24,6 +24,12 @@ enum SandboxToolDisplay {
         toolName.hasPrefix(mcpPrefix) ? String(toolName.dropFirst(mcpPrefix.count)) : toolName
     }
 
+    /// Approval cards use this to select the source -> destination rendering while accepting both
+    /// qualified MCP names and bare names from older transcript/relay payloads.
+    static func isCopyArtifact(_ toolName: String) -> Bool {
+        bareName(toolName) == "copy_artifact"
+    }
+
     /// The human label that replaces the raw tool name in a card headline. Nil for anything this
     /// file doesn't speak for, so the caller keeps the tool name unchanged.
     static func label(for toolName: String) -> String? {