feat(bot): add /messages command and support for fork and revert for ecah message (#136)

Author: grinev

.env.example

@@ -64,6 +64,9 @@ OPENCODE_MODEL_ID=big-pickle
 # Maximum number of sessions shown in /sessions (default: 10)
 # SESSIONS_LIST_LIMIT=10
 
+# Maximum number of user messages shown per page in /messages (default: 10)
+# MESSAGES_LIST_LIMIT=10
+
 # Maximum number of projects shown in /projects (default: 10)
 # PROJECTS_LIST_LIMIT=10
 

PRODUCT.md

@@ -102,6 +102,7 @@ Current command set:
 - `/abort` - stop the current task
 - `/detach` - detach the bot from the current session without stopping it
 - `/sessions` - show and switch recent sessions
+- `/messages` - browse user messages in the current session
 - `/projects` - show and switch projects
 - `/worktree` - show and switch existing git worktrees for the current repository
 - `/tts` - toggle global audio replies
@@ -121,7 +122,7 @@ Text messages (non-commands) are treated as prompts for OpenCode only when no bl
 
 Interaction routing rules:
 
-- Only one interactive flow can be active at a time (inline menu, permission, question, rename, commands, skills)
+- Only one interactive flow can be active at a time (inline menu, permission, question, rename, commands, skills, messages)
 - While an interaction is active, unrelated input is blocked with a contextual hint
 - Allowed utility commands during active interactions: `/help`, `/status`, `/abort`, `/detach`
 - Unknown slash commands return an explicit fallback message
@@ -166,12 +167,12 @@ Model picker behavior:
 - [x] `/mcps` command: browse available MCP servers
 - [x] Optional local OpenCode server monitoring with automatic restart
 - [x] Interactive project file browsing and file download from Telegram (`/ls`)
+- [x] `/messages` command: browse session messages with revert and fork functionality
 
 ## Current Task List
 
 Open tasks for upcoming iterations:
 
-- [ ] `/messages` command: browse session messages with fork/revert actions
 - [ ] Model search in model switcher
 - [ ] Docker runtime support and deployment guide
 - [ ] Add a bot settings command with in-chat UI

README.md

@@ -134,6 +134,7 @@ opencode-telegram config
 | `/abort`          | Abort the current task                                  |
 | `/detach`         | Detach from the current session without stopping it     |
 | `/sessions`       | Browse and switch between recent sessions               |
+| `/messages`       | Browse user messages, revert or fork from a previous state     |
 | `/projects`       | Switch between OpenCode projects                        |
 | `/worktree`       | Switch between existing git worktrees                   |
 | `/open`           | Add a project by browsing directories                   |
@@ -153,6 +154,14 @@ Any regular text message is sent as a prompt to the coding agent only when no bl
 
 When the current project is a git repository, `/worktree` shows the existing worktrees for that repository. Status and pinned updates display the main project path with the active branch, and show a separate `Worktree` line when a linked worktree is selected.
 
+## Message History, Revert, and Fork
+
+The `/messages` command displays all user messages in the current session, sorted by time (newest first). Select a message to view its full text and access the **Revert** and **Fork** actions.
+
+**Revert** rolls back the session state to the selected message, discarding all subsequent messages and agent responses. This is useful when you want to retry a different approach from a specific point in the conversation.
+
+**Fork** creates a new session that branches from the selected message. The original session remains unchanged, and you can continue working in the new forked session. This is useful when you want to explore an alternative approach without losing the original conversation history.
+
 ## Scheduled Tasks
 
 Scheduled tasks let you prepare prompts in advance and run them automatically later or on a recurring schedule. This is useful for periodic checks, routine code maintenance, or tasks you want OpenCode to execute while you are away from your computer. Use `/task` to create a scheduled task and `/tasklist` to review or delete existing ones.
@@ -210,6 +219,7 @@ When installed via npm, the configuration wizard handles the initial setup. The
 | `OPENCODE_MODEL_ID`                        | Default model ID                                                                                                      |   Yes    | `big-pickle`             |
 | `BOT_LOCALE`                               | Bot UI language (supported locale code, e.g. `en`, `de`, `es`, `fr`, `ru`, `zh`)                                      |    No    | `en`                     |
 | `SESSIONS_LIST_LIMIT`                      | Sessions per page in `/sessions`                                                                                      |    No    | `10`                     |
+| `MESSAGES_LIST_LIMIT`                      | User messages per page in `/messages`                                                                                 |    No    | `10`                     |
 | `PROJECTS_LIST_LIMIT`                      | Projects per page in `/projects`                                                                                      |    No    | `10`                     |
 | `OPEN_BROWSER_ROOTS`                       | Comma-separated paths `/open` is allowed to browse (supports `~`)                                                     |    No    | `~` (home directory)     |
 | `COMMANDS_LIST_LIMIT`                      | Items per page in `/commands` and `/skills`                                                                           |    No    | `10`                     |

src/bot/commands/definitions.ts

@@ -26,6 +26,7 @@ const COMMAND_DEFINITIONS: BotCommandI18nDefinition[] = [
   { command: "abort", descriptionKey: "cmd.description.stop" },
   { command: "detach", descriptionKey: "cmd.description.detach" },
   { command: "sessions", descriptionKey: "cmd.description.sessions" },
+  { command: "messages", descriptionKey: "cmd.description.messages" },
   { command: "tts", descriptionKey: "cmd.description.tts" },
   { command: "projects", descriptionKey: "cmd.description.projects" },
   { command: "worktree", descriptionKey: "cmd.description.worktree" },