diff --git a/docs/release-control/v6/internal/subsystems/ai-runtime.md b/docs/release-control/v6/internal/subsystems/ai-runtime.md
index e2e585851..9a92fcb2d 100644
--- a/docs/release-control/v6/internal/subsystems/ai-runtime.md
+++ b/docs/release-control/v6/internal/subsystems/ai-runtime.md
@@ -16,7 +16,9 @@
 ## Purpose
 
 Own Pulse Assistant and Patrol backend runtime behavior, AI orchestration,
-runtime cost control, and shared AI transport surfaces.
+runtime cost control, shared AI transport surfaces, and browser-visible
+Assistant transcript actions that define what visible operator/model text can
+leave the transcript without exposing hidden provider/tool metadata.
 
 ## Canonical Files
 
@@ -1309,6 +1311,16 @@ runtime cost control, and shared AI transport surfaces.
    the keypress so the App-level Assistant drawer Escape guard does not also
    close the whole drawer. Delete remains a named row action instead of a
    mouse-only affordance.
+   Message-level copy is part of the same OpenCode-aligned message action
+   surface, but Pulse must keep it browser-safe and role-neutral rather than
+   implying unsupported message-level fork/revert semantics. The referenced
+   OpenCode source in `packages/tui/src/routes/session/dialog-message.tsx`
+   exposes `message.copy` by collecting non-synthetic text parts for the
+   selected message. Pulse adapts that by allowing visible user and completed
+   assistant transcript rows to copy their own visible text through the shared
+   clipboard fallback helper; hidden reasoning, raw tool input/output, provider
+   envelopes, and scoped handoff metadata remain excluded unless the operator
+   explicitly opens a raw Details surface.
    Assistant session rename is part of that same source-backed session
    workflow. The referenced OpenCode source in
    `packages/opencode/src/cli/cmd/tui/component/dialog-session-list.tsx`
diff --git a/frontend-modern/src/components/AI/Chat/MessageItem.tsx b/frontend-modern/src/components/AI/Chat/MessageItem.tsx
index 189423306..1a5e0590f 100644
--- a/frontend-modern/src/components/AI/Chat/MessageItem.tsx
+++ b/frontend-modern/src/components/AI/Chat/MessageItem.tsx
@@ -38,6 +38,7 @@ import type {
 } from './types';
 import { AI_CHAT_ASSISTANT_MESSAGE_LABEL } from '@/utils/aiChatPresentation';
 import { formatAIModelRouteLabel } from '@/utils/aiProviderPresentation';
+import { copyToClipboard } from '@/utils/clipboard';
 
 interface MessageItemProps {
   message: ChatMessage;
@@ -418,64 +419,90 @@ export const MessageItem: Component<MessageItemProps> = (props) => {
     }
   });
 
-  // Copy-to-clipboard for a completed assistant answer.
+  // Copy-to-clipboard for completed transcript messages.
   const [copied, setCopied] = createSignal(false);
-  const copyableMessageText = () => getAssistantAnswerText(props.message);
-  const canCopy = () => !props.message.isStreaming && !!copyableMessageText();
-  const copyMessage = async () => {
-    const text = copyableMessageText();
-    try {
-      await navigator.clipboard?.writeText(text);
-      setCopied(true);
-      setTimeout(() => setCopied(false), 1500);
-    } catch {
-      // Clipboard can be unavailable (permissions / insecure context); fail quietly.
+  let copiedResetTimer: ReturnType<typeof setTimeout> | undefined;
+  const copyButtonLabel = () => (copied() ? 'Copied message' : 'Copy message');
+  const copyableMessageText = () => {
+    if (isUser()) {
+      const text = props.message.content || '';
+      return text.trim() ? text : '';
     }
+    return getAssistantAnswerText(props.message);
   };
+  const canCopy = () => !props.message.isStreaming && !!copyableMessageText();
+  const copyMessage = async (event?: MouseEvent) => {
+    event?.stopPropagation();
+    const text = copyableMessageText();
+    if (!text) return;
+    const ok = await copyToClipboard(text);
+    if (!ok) return;
+    setCopied(true);
+    if (copiedResetTimer) clearTimeout(copiedResetTimer);
+    copiedResetTimer = setTimeout(() => setCopied(false), 1500);
+  };
+  onCleanup(() => {
+    if (copiedResetTimer) clearTimeout(copiedResetTimer);
+  });
 
   return (
     <div class={`${isUser() ? 'flex justify-end' : ''} mb-4`}>
       {/* User message - compact bubble */}
       <Show when={isUser()}>
-        <div
-          class={`max-w-[85%] px-4 py-2.5 rounded-md rounded-br-sm shadow-sm ${
-            isQueuedUserMessage()
-              ? 'border border-blue-200 bg-blue-50 text-blue-950 dark:border-blue-900/60 dark:bg-blue-950/30 dark:text-blue-100'
-              : 'bg-blue-600 text-white'
-          }`}
-        >
-          <p class="text-sm whitespace-pre-wrap">{props.message.content}</p>
-          <Show when={isQueuedUserMessage()}>
-            <div
-              class="mt-1.5 flex flex-wrap items-center justify-end gap-1.5 text-[11px] font-medium text-blue-700 dark:text-blue-300"
-              role="status"
+        <div class="group flex max-w-[85%] items-start justify-end gap-2">
+          <Show when={canCopy()}>
+            <button
+              type="button"
+              onClick={(event) => void copyMessage(event)}
+              aria-label={copyButtonLabel()}
+              title={copyButtonLabel()}
+              class="mt-1 inline-flex h-7 w-7 shrink-0 items-center justify-center rounded-md border border-border-subtle bg-surface text-muted opacity-0 shadow-sm transition-opacity hover:text-base-content focus:opacity-100 group-hover:opacity-100"
             >
-              <ClockIcon class="h-3 w-3" aria-hidden="true" />
-              <span>{queuedStatusLabel()}</span>
-              <Show when={props.onEditQueued}>
-                <button
-                  type="button"
-                  onClick={() => props.onEditQueued?.()}
-                  aria-label="Edit queued follow-up"
-                  title="Edit queued follow-up"
-                  class="inline-flex h-5 w-5 items-center justify-center rounded text-blue-700 transition-colors hover:bg-blue-100 hover:text-blue-950 focus:bg-blue-100 focus:outline-none focus:ring-2 focus:ring-blue-500/30 dark:text-blue-200 dark:hover:bg-blue-900/60"
-                >
-                  <PencilIcon class="h-3 w-3" aria-hidden="true" />
-                </button>
+              <Show when={copied()} fallback={<CopyIcon class="h-3.5 w-3.5" aria-hidden="true" />}>
+                <CheckIcon class="h-3.5 w-3.5 text-emerald-500" aria-hidden="true" />
               </Show>
-              <Show when={props.onCancelQueued}>
-                <button
-                  type="button"
-                  onClick={() => props.onCancelQueued?.()}
-                  aria-label="Remove queued follow-up"
-                  title="Remove queued follow-up"
-                  class="inline-flex h-5 w-5 items-center justify-center rounded text-blue-700 transition-colors hover:bg-blue-100 hover:text-blue-950 focus:bg-blue-100 focus:outline-none focus:ring-2 focus:ring-blue-500/30 dark:text-blue-200 dark:hover:bg-blue-900/60"
-                >
-                  <XIcon class="h-3 w-3" aria-hidden="true" />
-                </button>
-              </Show>
-            </div>
+            </button>
           </Show>
+          <div
+            class={`min-w-0 px-4 py-2.5 rounded-md rounded-br-sm shadow-sm ${
+              isQueuedUserMessage()
+                ? 'border border-blue-200 bg-blue-50 text-blue-950 dark:border-blue-900/60 dark:bg-blue-950/30 dark:text-blue-100'
+                : 'bg-blue-600 text-white'
+            }`}
+          >
+            <p class="text-sm whitespace-pre-wrap">{props.message.content}</p>
+            <Show when={isQueuedUserMessage()}>
+              <div
+                class="mt-1.5 flex flex-wrap items-center justify-end gap-1.5 text-[11px] font-medium text-blue-700 dark:text-blue-300"
+                role="status"
+              >
+                <ClockIcon class="h-3 w-3" aria-hidden="true" />
+                <span>{queuedStatusLabel()}</span>
+                <Show when={props.onEditQueued}>
+                  <button
+                    type="button"
+                    onClick={() => props.onEditQueued?.()}
+                    aria-label="Edit queued follow-up"
+                    title="Edit queued follow-up"
+                    class="inline-flex h-5 w-5 items-center justify-center rounded text-blue-700 transition-colors hover:bg-blue-100 hover:text-blue-950 focus:bg-blue-100 focus:outline-none focus:ring-2 focus:ring-blue-500/30 dark:text-blue-200 dark:hover:bg-blue-900/60"
+                  >
+                    <PencilIcon class="h-3 w-3" aria-hidden="true" />
+                  </button>
+                </Show>
+                <Show when={props.onCancelQueued}>
+                  <button
+                    type="button"
+                    onClick={() => props.onCancelQueued?.()}
+                    aria-label="Remove queued follow-up"
+                    title="Remove queued follow-up"
+                    class="inline-flex h-5 w-5 items-center justify-center rounded text-blue-700 transition-colors hover:bg-blue-100 hover:text-blue-950 focus:bg-blue-100 focus:outline-none focus:ring-2 focus:ring-blue-500/30 dark:text-blue-200 dark:hover:bg-blue-900/60"
+                  >
+                    <XIcon class="h-3 w-3" aria-hidden="true" />
+                  </button>
+                </Show>
+              </div>
+            </Show>
+          </div>
         </div>
       </Show>
 
@@ -522,9 +549,9 @@ export const MessageItem: Component<MessageItemProps> = (props) => {
               <Show when={canCopy()}>
                 <button
                   type="button"
-                  onClick={copyMessage}
-                  aria-label={copied() ? 'Copied' : 'Copy message'}
-                  title={copied() ? 'Copied' : 'Copy message'}
+                  onClick={(event) => void copyMessage(event)}
+                  aria-label={copyButtonLabel()}
+                  title={copyButtonLabel()}
                   class="ml-auto inline-flex h-7 w-7 items-center justify-center rounded-md border border-border-subtle bg-surface text-muted opacity-0 shadow-sm transition-opacity hover:text-base-content focus:opacity-100 group-hover:opacity-100"
                 >
                   <Show
diff --git a/frontend-modern/src/components/AI/Chat/__tests__/MessageItem.test.tsx b/frontend-modern/src/components/AI/Chat/__tests__/MessageItem.test.tsx
index 7044eb991..86f5df186 100644
--- a/frontend-modern/src/components/AI/Chat/__tests__/MessageItem.test.tsx
+++ b/frontend-modern/src/components/AI/Chat/__tests__/MessageItem.test.tsx
@@ -1,5 +1,5 @@
 import { describe, expect, it, vi, afterEach } from 'vitest';
-import { cleanup, render, screen, fireEvent } from '@solidjs/testing-library';
+import { cleanup, render, screen, fireEvent, waitFor } from '@solidjs/testing-library';
 import { createSignal } from 'solid-js';
 import { MessageItem } from '../MessageItem';
 import type { ChatMessage, PendingApproval, PendingQuestion, StreamDisplayEvent } from '../types';
@@ -100,6 +100,7 @@ vi.mock('../../aiChatUtils', () => ({
 
 afterEach(() => {
   cleanup();
+  vi.restoreAllMocks();
   vi.useRealTimers();
 });
 
@@ -336,7 +337,7 @@ describe('MessageItem', () => {
   });
 
   describe('copy button', () => {
-    it('copies the message content when clicked', () => {
+    it('copies the assistant message content when clicked', async () => {
       const writeText = vi.fn().mockResolvedValue(undefined);
       Object.defineProperty(navigator, 'clipboard', {
         value: { writeText },
@@ -352,7 +353,62 @@ describe('MessageItem', () => {
 
       const copy = screen.getByRole('button', { name: /copy message/i });
       fireEvent.click(copy);
-      expect(writeText).toHaveBeenCalledWith('The cluster is healthy.');
+      await waitFor(() => {
+        expect(writeText).toHaveBeenCalledWith('The cluster is healthy.');
+      });
+      await waitFor(() => {
+        expect(screen.getByRole('button', { name: 'Copied message' })).toBeInTheDocument();
+      });
+    });
+
+    it('copies user message content from the transcript row', async () => {
+      const writeText = vi.fn().mockResolvedValue(undefined);
+      Object.defineProperty(navigator, 'clipboard', {
+        value: { writeText },
+        configurable: true,
+      });
+
+      render(() => (
+        <MessageItem
+          message={makeMessage({ role: 'user', content: 'how many devices in this host?' })}
+          {...makeHandlers()}
+        />
+      ));
+
+      const copy = screen.getByRole('button', { name: /copy message/i });
+      fireEvent.click(copy);
+      await waitFor(() => {
+        expect(writeText).toHaveBeenCalledWith('how many devices in this host?');
+      });
+      expect(screen.getByText('how many devices in this host?')).toBeInTheDocument();
+    });
+
+    it('uses the fallback clipboard path when direct clipboard writes fail', async () => {
+      const writeText = vi.fn().mockRejectedValue(new Error('blocked'));
+      const execCommand = vi.fn().mockReturnValue(true);
+      Object.defineProperty(document, 'execCommand', {
+        value: execCommand,
+        configurable: true,
+      });
+      Object.defineProperty(navigator, 'clipboard', {
+        value: { writeText },
+        configurable: true,
+      });
+
+      render(() => (
+        <MessageItem
+          message={makeMessage({ role: 'assistant', content: 'Fallback copy content.' })}
+          {...makeHandlers()}
+        />
+      ));
+
+      fireEvent.click(screen.getByRole('button', { name: /copy message/i }));
+
+      await waitFor(() => {
+        expect(writeText).toHaveBeenCalledWith('Fallback copy content.');
+        expect(execCommand).toHaveBeenCalledWith('copy');
+        expect(screen.getByRole('button', { name: 'Copied message' })).toBeInTheDocument();
+      });
     });
 
     it('does not show a copy button while streaming', () => {
@@ -855,9 +911,7 @@ describe('MessageItem', () => {
 
       expect(screen.getByText('Reading current Pulse inventory.')).toBeInTheDocument();
       expect(screen.getByText('3 devices found')).toBeInTheDocument();
-      expect(
-        screen.getByText('OpenRouter is starting the response.'),
-      ).toBeInTheDocument();
+      expect(screen.getByText('OpenRouter is starting the response.')).toBeInTheDocument();
       expect(screen.queryByText(/pulse_query/)).not.toBeInTheDocument();
     });
 
@@ -880,9 +934,7 @@ describe('MessageItem', () => {
       ));
 
       expect(screen.getByText('Partial answer')).toBeInTheDocument();
-      expect(
-        screen.queryByText('OpenRouter is starting the response.'),
-      ).not.toBeInTheDocument();
+      expect(screen.queryByText('OpenRouter is starting the response.')).not.toBeInTheDocument();
       expect(screen.queryByText('Thinking...')).not.toBeInTheDocument();
     });
 
@@ -909,9 +961,7 @@ describe('MessageItem', () => {
         />
       ));
 
-      expect(
-        screen.getByText('OpenRouter is starting the response.'),
-      ).toBeInTheDocument();
+      expect(screen.getByText('OpenRouter is starting the response.')).toBeInTheDocument();
       expect(screen.getByText('Partial answer')).toBeInTheDocument();
       expect(screen.queryByText('Thinking...')).not.toBeInTheDocument();
     });