feat(cli): support /copy N to copy Nth-last AI message

docs/users/features/commands.md

@@ -268,17 +268,17 @@ In headless (`--prompt`) or non-interactive contexts, `/diff` prints a plain-tex
 
 Commands for obtaining information and performing system settings.
 
-| Command         | Description                                     | Usage Examples                   |
-| --------------- | ----------------------------------------------- | -------------------------------- |
-| `/help`         | Display help information for available commands | `/help` or `/?`                  |
-| `/status`       | Display version information                     | `/status` or `/about`            |
-| `/status paths` | Display current session file and log paths      | `/status paths`                  |
-| `/stats`        | Display detailed statistics for current session | `/stats`                         |
-| `/settings`     | Open settings editor                            | `/settings`                      |
-| `/auth`         | Change authentication method                    | `/auth`                          |
-| `/bug`          | Submit issue about Qwen Code                    | `/bug Button click unresponsive` |
-| `/copy`         | Copy last output content to clipboard           | `/copy`                          |
-| `/quit`         | Exit Qwen Code immediately                      | `/quit` or `/exit`               |
+| Command         | Description                                                   | Usage Examples                   |
+| --------------- | ------------------------------------------------------------- | -------------------------------- |
+| `/help`         | Display help information for available commands               | `/help` or `/?`                  |
+| `/status`       | Display version information                                   | `/status` or `/about`            |
+| `/status paths` | Display current session file and log paths                    | `/status paths`                  |
+| `/stats`        | Display detailed statistics for current session               | `/stats`                         |
+| `/settings`     | Open settings editor                                          | `/settings`                      |
+| `/auth`         | Change authentication method                                  | `/auth`                          |
+| `/bug`          | Submit issue about Qwen Code                                  | `/bug Button click unresponsive` |
+| `/copy`         | Copy AI output to clipboard (`/copy N` = Nth-last AI message) | `/copy` or `/copy 2`             |
+| `/quit`         | Exit Qwen Code immediately                                    | `/quit` or `/exit`               |
 
 ### 1.10 Common Shortcuts
 

docs/users/features/markdown-rendering.md

@@ -150,6 +150,25 @@ response:
 | `/copy code typescript` | Copies the last `typescript` code block. |
 | `/copy code mermaid 1`  | Copies the first `mermaid` code block.   |
 
+## Selecting an Earlier AI Message
+
+By default `/copy` targets the most recent AI message. Prefix the command with
+a positive integer to copy from the Nth-last AI message instead — handy when
+the latest reply is something low-signal (e.g., a TODO update) and the
+substantive output is one or two turns back.
+
+| Command               | Behavior                                               |
+| --------------------- | ------------------------------------------------------ |
+| `/copy 2`             | Copies the second-to-last AI message in full.          |
+| `/copy 3`             | Copies the third-to-last AI message in full.           |
+| `/copy 2 code python` | Copies the last `python` code block from the 2nd-last. |
+| `/copy 3 latex`       | Copies the last LaTeX block from the 3rd-last message. |
+
+`/copy 1` is equivalent to `/copy`. If `N` exceeds the number of AI messages
+in the session, `/copy` reports the actual count instead of copying anything.
+Without a leading integer, sub-selectors such as `/copy code python 2` keep
+their existing meaning (the 2nd `python` block in the last message).
+
 ## Current Limits
 
 - Mermaid image rendering depends on Mermaid CLI plus terminal image support.
@@ -160,4 +179,5 @@ response:
   Mermaid layout engine.
 - Raw mode is global for rendered Markdown blocks; it is not a per-block toggle.
 - LaTeX rendering covers common symbols and expressions, not full TeX layout.
-- Source copy commands operate on the last AI response.
+- Source copy commands target the last AI response by default, or the Nth-last
+  when invoked as `/copy N ...`.

packages/cli/src/i18n/locales/ca.js

@@ -192,8 +192,8 @@ export default {
     'obrir la documentació completa de Qwen Code al navegador',
   'Configuration not available.': 'Configuració no disponible.',
   'Connect an LLM provider': 'Connectar un proveïdor LLM',
-  'Copy the last result or code snippet to clipboard':
-    "Copiar l'últim resultat o fragment de codi al porta-retalls",
+  'Copy the last AI response to clipboard (/copy N for Nth-latest)':
+    "Copia l'última resposta de la IA al porta-retalls (/copy N per a l'N-èsima)",
 
   // ============================================================================
   // Ordres - Agents

packages/cli/src/i18n/locales/de.js

@@ -171,8 +171,8 @@ export default {
     'Vollständige Qwen Code Dokumentation im Browser öffnen',
   'Configuration not available.': 'Konfiguration nicht verfügbar.',
   'Connect an LLM provider': 'LLM-Anbieter verbinden',
-  'Copy the last result or code snippet to clipboard':
-    'Letztes Ergebnis oder Codeausschnitt in die Zwischenablage kopieren',
+  'Copy the last AI response to clipboard (/copy N for Nth-latest)':
+    'Letzte KI-Antwort in die Zwischenablage kopieren (/copy N für die N-letzte)',
 
   // ============================================================================
   // Commands - Agents

packages/cli/src/i18n/locales/en.js

@@ -194,8 +194,8 @@ export default {
     'open full Qwen Code documentation in your browser',
   'Configuration not available.': 'Configuration not available.',
   'Connect an LLM provider': 'Connect an LLM provider',
-  'Copy the last result or code snippet to clipboard':
-    'Copy the last result or code snippet to clipboard',
+  'Copy the last AI response to clipboard (/copy N for Nth-latest)':
+    'Copy the last AI response to clipboard (/copy N for Nth-latest)',
   'Show working-tree change stats versus HEAD':
     'Show working-tree change stats versus HEAD',
   'Could not determine current working directory.':

packages/cli/src/i18n/locales/fr.js

@@ -192,8 +192,8 @@ export default {
     'ouvrir la documentation complète de Qwen Code dans votre navigateur',
   'Configuration not available.': 'Configuration non disponible.',
   'Connect an LLM provider': 'Se connecter à un fournisseur LLM',
-  'Copy the last result or code snippet to clipboard':
-    'Copier le dernier résultat ou extrait de code dans le presse-papiers',
+  'Copy the last AI response to clipboard (/copy N for Nth-latest)':
+    'Copier la dernière réponse IA dans le presse-papiers (/copy N pour la Nième)',
 
   // ============================================================================
   // Commandes - Agents

packages/cli/src/i18n/locales/ja.js

@@ -149,8 +149,8 @@ export default {
     'ブラウザで Qwen Code のドキュメントを開く',
   'Configuration not available.': '設定が利用できません',
   'Connect an LLM provider': 'LLM プロバイダーに接続',
-  'Copy the last result or code snippet to clipboard':
-    '最後の結果またはコードスニペットをクリップボードにコピー',
+  'Copy the last AI response to clipboard (/copy N for Nth-latest)':
+    '最新のAI応答をクリップボードにコピー（/copy N で新しい方からN番目）',
 
   // ============================================================================
   // Commands - Agents

packages/cli/src/i18n/locales/pt.js

@@ -185,8 +185,8 @@ export default {
     'abrir documentação completa do Qwen Code no seu navegador',
   'Configuration not available.': 'Configuração não disponível.',
   'Connect an LLM provider': 'Conectar a um provedor LLM',
-  'Copy the last result or code snippet to clipboard':
-    'Copiar o último resultado ou trecho de código para a área de transferência',
+  'Copy the last AI response to clipboard (/copy N for Nth-latest)':
+    'Copiar a última resposta da IA para a área de transferência (/copy N para a N-ésima)',
 
   // ============================================================================
   // Commands - Agents

packages/cli/src/i18n/locales/ru.js

@@ -194,8 +194,8 @@ export default {
     'Открытие полной документации Qwen Code в браузере',
   'Configuration not available.': 'Конфигурация недоступна.',
   'Connect an LLM provider': 'Подключить провайдера LLM',
-  'Copy the last result or code snippet to clipboard':
-    'Копирование последнего результата или фрагмента кода в буфер обмена',
+  'Copy the last AI response to clipboard (/copy N for Nth-latest)':
+    'Копировать последний ответ ИИ в буфер обмена (/copy N для N-го с конца)',
 
   // ============================================================================
   // Команды - Агенты

packages/cli/src/i18n/locales/zh-TW.js

@@ -174,8 +174,8 @@ export default {
     '在瀏覽器中打開完整的 Qwen Code 文檔',
   'Configuration not available.': '配置不可用',
   'Connect an LLM provider': '連接 LLM 提供商',
-  'Copy the last result or code snippet to clipboard':
-    '將最後的結果或代碼片段複製到剪貼板',
+  'Copy the last AI response to clipboard (/copy N for Nth-latest)':
+    '將最近的 AI 回應複製到剪貼簿（/copy N 複製倒數第 N 則）',
   'Show working-tree change stats versus HEAD':
     '顯示工作區相對 HEAD 的變更統計',
   'Could not determine current working directory.': '無法確定當前工作目錄。',

packages/cli/src/i18n/locales/zh.js

@@ -185,8 +185,8 @@ export default {
     '在浏览器中打开完整的 Qwen Code 文档',
   'Configuration not available.': '配置不可用',
   'Connect an LLM provider': '连接 LLM 提供商',
-  'Copy the last result or code snippet to clipboard':
-    '将最后的结果或代码片段复制到剪贴板',
+  'Copy the last AI response to clipboard (/copy N for Nth-latest)':
+    '将最近的 AI 回复复制到剪贴板（/copy N 复制倒数第 N 条）',
   'Show working-tree change stats versus HEAD':
     '显示工作区相对 HEAD 的变更统计',
   'Could not determine current working directory.': '无法确定当前工作目录。',