diff --git a/ui-tui-opentui-v2/src/boundary/clipboard.ts b/ui-tui-opentui-v2/src/boundary/clipboard.ts
new file mode 100644
index 00000000000..fa044c97af4
--- /dev/null
+++ b/ui-tui-opentui-v2/src/boundary/clipboard.ts
@@ -0,0 +1,94 @@
+/**
+ * Clipboard (item 1) — copy via OSC 52 (works over SSH/tmux) + a native platform
+ * command, and read a clipboard IMAGE for paste-to-attach. Ported/trimmed from
+ * opencode `clipboard.ts`. A boundary concern (spawns processes / writes stdout);
+ * everything is best-effort and never throws into the view.
+ */
+import { spawn } from 'node:child_process'
+import { platform } from 'node:os'
+
+/** Run a command, optionally piping `input` to stdin; resolve its stdout bytes. */
+function run(cmd: string, args: string[] = [], input?: string): Promise<Buffer> {
+  return new Promise((resolve, reject) => {
+    let child
+    try {
+      child = spawn(cmd, args, { stdio: [input === undefined ? 'ignore' : 'pipe', 'pipe', 'ignore'] })
+    } catch (cause) {
+      reject(cause instanceof Error ? cause : new Error(String(cause)))
+      return
+    }
+    const out: Buffer[] = []
+    child.on('error', reject)
+    child.stdout?.on('data', (c: Buffer) => out.push(c))
+    child.on('close', code => (code === 0 ? resolve(Buffer.concat(out)) : reject(new Error(`${cmd} exit ${code}`))))
+    if (input !== undefined) child.stdin?.end(input)
+  })
+}
+
+/** OSC 52 copy — the terminal puts `text` on the system clipboard (SSH/tmux-safe). */
+function writeOsc52(text: string): void {
+  if (!process.stdout.isTTY) return
+  const seq = `\x1b]52;c;${Buffer.from(text).toString('base64')}\x07`
+  // tmux/screen need the sequence wrapped in their passthrough escape.
+  process.stdout.write(process.env.TMUX || process.env.STY ? `\x1bPtmux;\x1b${seq}\x1b\\` : seq)
+}
+
+/** Native copy commands to try, in order, for the current platform. */
+function copyCandidates(): Array<[string, string[]]> {
+  const os = platform()
+  if (os === 'darwin') return [['pbcopy', []]]
+  if (os === 'win32') return [['clip', []]]
+  // linux: prefer Wayland, then X11 tools
+  const list: Array<[string, string[]]> = []
+  if (process.env.WAYLAND_DISPLAY) list.push(['wl-copy', []])
+  list.push(['xclip', ['-selection', 'clipboard']], ['xsel', ['--clipboard', '--input']])
+  return list
+}
+
+/** Copy `text` to the clipboard: OSC 52 (always) + the first native command that works. */
+export async function writeClipboard(text: string): Promise<void> {
+  writeOsc52(text)
+  for (const [cmd, args] of copyCandidates()) {
+    try {
+      await run(cmd, args, text)
+      return
+    } catch {
+      // try the next candidate
+    }
+  }
+}
+
+/** Read a clipboard IMAGE as base64 PNG (for paste-to-attach); undefined if none. */
+export async function readClipboardImage(): Promise<{ data: string; mime: string } | undefined> {
+  const os = platform()
+  const tries: Array<[string, string[]]> = []
+  if (os === 'linux') {
+    if (process.env.WAYLAND_DISPLAY) tries.push(['wl-paste', ['-t', 'image/png']])
+    tries.push(['xclip', ['-selection', 'clipboard', '-t', 'image/png', '-o']])
+  } else if (os === 'darwin') {
+    tries.push(['pngpaste', ['-']]) // brew install pngpaste
+  } else if (os === 'win32') {
+    tries.push([
+      'powershell.exe',
+      [
+        '-NonInteractive',
+        '-NoProfile',
+        '-Command',
+        'Add-Type -AssemblyName System.Windows.Forms; $img=[System.Windows.Forms.Clipboard]::GetImage(); if($img){$ms=New-Object System.IO.MemoryStream; $img.Save($ms,[System.Drawing.Imaging.ImageFormat]::Png); [Console]::Out.Write([System.Convert]::ToBase64String($ms.ToArray()))}'
+      ]
+    ])
+  }
+  for (const [cmd, args] of tries) {
+    try {
+      const buf = await run(cmd, args)
+      if (buf.length) {
+        // powershell already returns base64 text; the others return raw PNG bytes.
+        const data = os === 'win32' ? buf.toString('utf8').trim() : buf.toString('base64')
+        if (data) return { data, mime: 'image/png' }
+      }
+    } catch {
+      // try the next candidate
+    }
+  }
+  return undefined
+}
diff --git a/ui-tui-opentui-v2/src/boundary/renderer.ts b/ui-tui-opentui-v2/src/boundary/renderer.ts
index c187e8be200..3f50ed1b4d0 100644
--- a/ui-tui-opentui-v2/src/boundary/renderer.ts
+++ b/ui-tui-opentui-v2/src/boundary/renderer.ts
@@ -25,6 +25,12 @@ export interface RendererOptions {
    * default is an immediate `renderer.destroy()` (quit).
    */
   readonly onCtrlC?: () => void
+  /**
+   * Copy a mouse selection (item 1). When there's a live selection, Ctrl+C copies
+   * it (this callback) instead of interrupting/quitting — opencode's selection
+   * key precedence (`app.tsx:388`).
+   */
+  readonly onCopySelection?: (text: string) => void
 }
 
 /**
@@ -64,6 +70,16 @@ export const acquireRenderer = Effect.fn('Renderer.acquire')(function* (options:
   const isBlocked = options.isBlocked ?? (() => false)
   renderer.keyInput.on('keypress', (key: KeyEvent) => {
     if (!(key.ctrl && key.name === 'c') || renderer.isDestroyed) return
+    // Copy a live mouse selection first (item 1) — takes precedence over the
+    // interrupt/quit machine and over a blocking prompt's cancel.
+    if (options.onCopySelection) {
+      const text = renderer.getSelection()?.getSelectedText() ?? ''
+      if (text) {
+        options.onCopySelection(text)
+        renderer.clearSelection()
+        return
+      }
+    }
     if (isBlocked()) return // a blocking prompt owns Ctrl+C (→ deny/cancel)
     if (options.onCtrlC) options.onCtrlC()
     else renderer.destroy()
diff --git a/ui-tui-opentui-v2/src/entry/main.tsx b/ui-tui-opentui-v2/src/entry/main.tsx
index 3f01edd79f9..bc1de60b462 100644
--- a/ui-tui-opentui-v2/src/entry/main.tsx
+++ b/ui-tui-opentui-v2/src/entry/main.tsx
@@ -22,6 +22,7 @@
 import { render } from '@opentui/solid'
 import { Deferred, Duration, Effect } from 'effect'
 
+import { readClipboardImage, writeClipboard } from '../boundary/clipboard.ts'
 import { GatewayService, type GatewayServiceShape } from '../boundary/gateway/GatewayService.ts'
 import { liveGatewayLayer } from '../boundary/gateway/liveGateway.ts'
 import { getLog } from '../boundary/log.ts'
@@ -199,11 +200,51 @@ export const run = Effect.fn('Tui.run')(function* (input: TuiInput) {
         }
       }
 
+      // Transient hint that auto-clears (used by copy/image-paste feedback).
+      const flashHint = (message: string, ms = 1500) => {
+        store.setHint(message)
+        setTimeout(() => {
+          if (store.state.hint === message) store.setHint(undefined)
+        }, ms)
+      }
+
+      // Copy a mouse selection to the clipboard (item 1) — OSC 52 + native command.
+      const onCopySelection = (text: string) => {
+        void writeClipboard(text)
+        flashHint('Copied to clipboard')
+      }
+
+      // Paste an IMAGE (item 1): read the clipboard image and attach it to the
+      // session (image.attach_bytes); the next prompt.submit picks it up.
+      const onImagePaste = () => {
+        void (async () => {
+          const img = await readClipboardImage()
+          if (!img) {
+            flashHint('No image in clipboard', 2000)
+            return
+          }
+          const sid = gateway.sessionId()
+          if (!sid) {
+            flashHint('No session for image', 2000)
+            return
+          }
+          try {
+            await Effect.runPromise(
+              gateway.request('image.attach_bytes', { content_base64: img.data, filename: 'pasted.png', session_id: sid })
+            )
+            flashHint('🖼 image attached — type a message and send', 3000)
+          } catch {
+            flashHint('Image attach failed', 2000)
+          }
+        })()
+      }
+
       // A blocking prompt owns Ctrl+C (→ cancel); otherwise the state machine above runs.
       const { renderer, shutdown } = yield* acquireRenderer({
         mouse: input.mouse,
         isBlocked: () => store.state.prompt !== undefined,
-        onCtrlC
+        onCtrlC,
+        onCopySelection
       })
       doQuit = () => {
         if (!renderer.isDestroyed) renderer.destroy()
@@ -313,6 +354,7 @@ export const run = Effect.fn('Tui.run')(function* (input: TuiInput) {
                 onResume={onResume}
                 sessionId={() => gateway.sessionId()}
                 history={history}
+                onImagePaste={onImagePaste}
               />
             </ThemeProvider>
           ),
diff --git a/ui-tui-opentui-v2/src/view/App.tsx b/ui-tui-opentui-v2/src/view/App.tsx
index 4ea0b418eeb..1bbb306e90b 100644
--- a/ui-tui-opentui-v2/src/view/App.tsx
+++ b/ui-tui-opentui-v2/src/view/App.tsx
@@ -37,6 +37,7 @@ export interface AppProps {
   readonly onResume?: (sessionId: string) => void
   readonly sessionId?: () => string | undefined
   readonly history?: PromptHistory
+  readonly onImagePaste?: () => void
 }
 
 const NOOP = () => {}
@@ -89,6 +90,7 @@ export function App(props: AppProps) {
                     completionFrom={() => props.store.state.completionFrom}
                     onDismiss={() => props.store.clearCompletions()}
                     history={props.history}
+                    onImagePaste={props.onImagePaste}
                   />
                 }
               >
diff --git a/ui-tui-opentui-v2/src/view/composer.tsx b/ui-tui-opentui-v2/src/view/composer.tsx
index 057e47836de..4d1c5da7d3f 100644
--- a/ui-tui-opentui-v2/src/view/composer.tsx
+++ b/ui-tui-opentui-v2/src/view/composer.tsx
@@ -19,7 +19,7 @@
  * the prompt focused via a reactive effect; here a keystroke net is enough since
  * the composer remounts+refocuses whenever an overlay closes).
  */
-import { type TextareaRenderable } from '@opentui/core'
+import { type PasteEvent, type TextareaRenderable } from '@opentui/core'
 import { useKeyboard } from '@opentui/solid'
 import { For, onMount, Show } from 'solid-js'
 
@@ -80,6 +80,7 @@ export function Composer(props: {
   completionFrom?: (() => number) | undefined
   onDismiss?: (() => void) | undefined
   history?: PromptHistory | undefined
+  onImagePaste?: (() => void) | undefined
 }) {
   const theme = useTheme()
   let ta: TextareaRenderable | undefined
@@ -182,7 +183,7 @@ export function Composer(props: {
           not a background tint. */}
       <box style={{ flexDirection: 'row', flexShrink: 0 }}>
         <box style={{ flexShrink: 0, width: GUTTER }}>
-          <text>
+          <text selectable={false}>
             <span style={{ fg: theme().color.prompt }}>{theme().brand.prompt}</span>
           </text>
         </box>
@@ -196,6 +197,14 @@ export function Composer(props: {
           keyBindings={[{ action: 'submit', name: 'return' }]}
           onMouseDown={() => ta?.focus()}
           onSubmit={submit}
+          onPaste={(e: PasteEvent) => {
+            // An empty bracketed paste = an image-only clipboard (item 1) — read +
+            // attach it. Text pastes fall through to the textarea's native insert.
+            if (new TextDecoder().decode(e.bytes).trim() === '') {
+              e.preventDefault()
+              props.onImagePaste?.()
+            }
+          }}
           onContentChange={() => props.onType?.(ta?.plainText ?? '')}
         />
       </box>
diff --git a/ui-tui-opentui-v2/src/view/header.tsx b/ui-tui-opentui-v2/src/view/header.tsx
index 90dbda59472..cef02bc50dd 100644
--- a/ui-tui-opentui-v2/src/view/header.tsx
+++ b/ui-tui-opentui-v2/src/view/header.tsx
@@ -13,7 +13,7 @@ export function Header(props: { store: SessionStore }) {
   const theme = useTheme()
   return (
     <box style={{ flexShrink: 0 }}>
-      <text>
+      <text selectable={false}>
         <b>{theme().brand.name}</b>
         <span style={{ fg: theme().color.muted }}> · opentui · </span>
         <Show when={props.store.state.ready} fallback={<span style={{ fg: theme().color.muted }}>connecting…</span>}>
diff --git a/ui-tui-opentui-v2/src/view/messageLine.tsx b/ui-tui-opentui-v2/src/view/messageLine.tsx
index b241d996863..620659dd651 100644
--- a/ui-tui-opentui-v2/src/view/messageLine.tsx
+++ b/ui-tui-opentui-v2/src/view/messageLine.tsx
@@ -28,7 +28,8 @@ export function MessageLine(props: { message: Message }) {
   return (
     <box style={{ flexDirection: 'row', flexShrink: 0, marginTop: m().role === 'user' ? 1 : 0 }}>
       <box style={{ flexShrink: 0, width: GUTTER }}>
-        <text>
+        {/* the role glyph is decorative — exclude it from mouse selection (item 4) */}
+        <text selectable={false}>
           <span style={{ fg: glyphFg() }}>{glyph()}</span>
         </text>
       </box>
diff --git a/ui-tui-opentui-v2/src/view/statusBar.tsx b/ui-tui-opentui-v2/src/view/statusBar.tsx
index fbdd9c00e5b..2f39353485c 100644
--- a/ui-tui-opentui-v2/src/view/statusBar.tsx
+++ b/ui-tui-opentui-v2/src/view/statusBar.tsx
@@ -104,7 +104,7 @@ export function StatusBar(props: { store: SessionStore }) {
     >
       {/* left: turn/connection dot + model + effort + context bar */}
       <box style={{ flexShrink: 0, flexDirection: 'row' }}>
-        <text>
+        <text selectable={false}>
           <span style={{ fg: dotColor() }}>{dot()}</span>
           <Show when={model()}>
             <span style={{ fg: theme().color.statusFg }}>{` ${model()}`}</span>
@@ -124,7 +124,7 @@ export function StatusBar(props: { store: SessionStore }) {
       {/* right: cwd (branch), pre-truncated so the row never wraps */}
       <Show when={rightText()}>
         <box style={{ flexShrink: 0, flexDirection: 'row' }}>
-          <text>
+          <text selectable={false}>
             <span style={{ fg: theme().color.muted }}>{rightText()}</span>
           </text>
         </box>
diff --git a/ui-tui-opentui-v2/src/view/statusLine.tsx b/ui-tui-opentui-v2/src/view/statusLine.tsx
index 629f6de997b..15c9a2d4e42 100644
--- a/ui-tui-opentui-v2/src/view/statusLine.tsx
+++ b/ui-tui-opentui-v2/src/view/statusLine.tsx
@@ -21,7 +21,7 @@ export function StatusLine(props: { store: SessionStore }) {
     <Show when={line()}>
       {text => (
         <box style={{ flexShrink: 0 }}>
-          <text>
+          <text selectable={false}>
             <span style={{ fg: isHint() ? theme().color.warn : theme().color.muted }}>{text()}</span>
           </text>
         </box>
diff --git a/ui-tui-opentui-v2/src/view/toolPart.tsx b/ui-tui-opentui-v2/src/view/toolPart.tsx
index 4f340e15384..3dadc289026 100644
--- a/ui-tui-opentui-v2/src/view/toolPart.tsx
+++ b/ui-tui-opentui-v2/src/view/toolPart.tsx
@@ -45,7 +45,7 @@ export function ToolPart(props: { part: ToolPartState }) {
       {/* header — clickable to toggle when there's expandable output */}
       <box style={{ flexDirection: 'row', flexShrink: 0 }} onMouseDown={() => collapsible() && setExpanded(e => !e)}>
         <box style={{ flexShrink: 0, width: GUTTER }}>
-          <text>
+          <text selectable={false}>
             <span style={{ fg: headColor() }}>{headGlyph()}</span>
           </text>
         </box>