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feat(tui): implement multi-session tabs — session:create/switch/close/list/rename/delete slash commands #8700

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opened 2026-04-13 22:23:57 +00:00 by HAL9000 · 1 comment

HAL9000 commented

2026-04-13 22:23:57 +00:00

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Summary

The slash command catalog (slash_catalog.py) advertises six session-management commands — session:create, session:list, session:switch, session:close, session:delete, session:rename — but none of them are implemented in TuiCommandRouter. The TUI app is hard-coded to a single SessionView(session_id="default") with no tab widget, no session switching, and no multi-session state management.

Confirmed Gap (code evidence)

`src/cleveragents/tui/slash_catalog.py` — commands declared but unimplemented

SlashCommandSpec("session:create", "Session", "Create a new session tab"),
SlashCommandSpec("session:list",   "Session", "Display all sessions"),
SlashCommandSpec("session:switch", "Session", "Switch to a session"),
SlashCommandSpec("session:close",  "Session", "Close the current session"),
SlashCommandSpec("session:delete", "Session", "Delete a saved session"),
SlashCommandSpec("session:rename", "Session", "Rename current session"),

`src/cleveragents/tui/commands.py` — `_session_command` only handles `show`, `export`, `import`

def _session_command(self, tokens, *, session_id):
    if not tokens or tokens[0] == "show":
        return f"Current session: {session_id}"
    if tokens[0] == "export":
        return self._session_export(tokens[1:], session_id=session_id)
    if tokens[0] == "import":
        return self._session_import(tokens[1:])
    return f"Unknown session command: {' '.join(tokens)}"
    # create / list / switch / close / delete / rename all fall through here

`src/cleveragents/tui/app.py` — single hard-coded session, no tab widget

self._session = SessionView(session_id="default", transcript=[])
# No Tabs, ContentSwitcher, or TabbedContent widget in compose()

Required Work

1. Multi-session state in `TuiCommandRouter`

Implement the missing sub-commands in _session_command:

Sub-command	Behaviour
`session:create [name]`	Create a new `SessionView`, assign a ULID or user-supplied name, make it active
`session:list`	Return a formatted list of all open sessions with the active one marked
`session:switch <id>`	Make the named session active; update `PersonaState`
`session:close`	Close the active session; switch to the most-recently-used session
`session:delete <id>`	Remove a session from the registry (and from SQLite if persisted)
`session:rename <new-name>`	Rename the active session

2. Multi-session state manager

Add src/cleveragents/tui/session_manager.py:

SessionManager dataclass holding sessions: dict[str, SessionView] and active_session_id: str.
Methods: create(), get(id), list_all(), switch(id), close(id), delete(id), rename(id, name).
Thread-safe (the Textual event loop runs in a thread).

Add a Tabs (or TabbedContent) Textual widget to _TextualCleverAgentsTuiApp.compose():

One tab per open session, labelled with the session name.
Switching tabs calls session_manager.switch(id) and refreshes the persona bar.
New tabs are created by session:create; closed by session:close.

4. Keyboard bindings

Binding	Action
`ctrl+n`	`session:create`
`ctrl+w`	`session:close`
`ctrl+tab`	cycle to next session tab
`ctrl+shift+tab`	cycle to previous session tab

5. Tests

Unit tests (features/tui/session_manager/): create, list, switch, close, delete, rename.
Integration tests (robot/tui/): full slash-command round-trip for each sub-command.

Acceptance Criteria

All six session sub-commands return meaningful output from TuiCommandRouter.handle().
SessionManager class exists and is fully typed.
The TUI app renders a tab bar when more than one session is open.
Switching tabs updates the active persona bar.
All quality gates pass (nox -e lint typecheck unit_tests integration_tests).

Metadata

Commit Message: feat(tui): implement multi-session tabs
Branch: feat/tui-multi-session-tabs
Type: Feature

Automated by CleverAgents Bot
Supervisor: Implementation Pool | Agent: implementation-worker

## Summary The slash command catalog (`slash_catalog.py`) advertises six session-management commands — `session:create`, `session:list`, `session:switch`, `session:close`, `session:delete`, `session:rename` — but **none of them are implemented** in `TuiCommandRouter`. The TUI app is hard-coded to a single `SessionView(session_id="default")` with no tab widget, no session switching, and no multi-session state management. ## Confirmed Gap (code evidence) ### `src/cleveragents/tui/slash_catalog.py` — commands declared but unimplemented ```python SlashCommandSpec("session:create", "Session", "Create a new session tab"), SlashCommandSpec("session:list", "Session", "Display all sessions"), SlashCommandSpec("session:switch", "Session", "Switch to a session"), SlashCommandSpec("session:close", "Session", "Close the current session"), SlashCommandSpec("session:delete", "Session", "Delete a saved session"), SlashCommandSpec("session:rename", "Session", "Rename current session"), ``` ### `src/cleveragents/tui/commands.py` — `_session_command` only handles `show`, `export`, `import` ```python def _session_command(self, tokens, *, session_id): if not tokens or tokens[0] == "show": return f"Current session: {session_id}" if tokens[0] == "export": return self._session_export(tokens[1:], session_id=session_id) if tokens[0] == "import": return self._session_import(tokens[1:]) return f"Unknown session command: {' '.join(tokens)}" # create / list / switch / close / delete / rename all fall through here ``` ### `src/cleveragents/tui/app.py` — single hard-coded session, no tab widget ```python self._session = SessionView(session_id="default", transcript=[]) # No Tabs, ContentSwitcher, or TabbedContent widget in compose() ``` ## Required Work ### 1. Multi-session state in `TuiCommandRouter` Implement the missing sub-commands in `_session_command`: | Sub-command | Behaviour | |---|---| | `session:create [name]` | Create a new `SessionView`, assign a ULID or user-supplied name, make it active | | `session:list` | Return a formatted list of all open sessions with the active one marked | | `session:switch <id>` | Make the named session active; update `PersonaState` | | `session:close` | Close the active session; switch to the most-recently-used session | | `session:delete <id>` | Remove a session from the registry (and from SQLite if persisted) | | `session:rename <new-name>` | Rename the active session | ### 2. Multi-session state manager Add `src/cleveragents/tui/session_manager.py`: - `SessionManager` dataclass holding `sessions: dict[str, SessionView]` and `active_session_id: str`. - Methods: `create()`, `get(id)`, `list_all()`, `switch(id)`, `close(id)`, `delete(id)`, `rename(id, name)`. - Thread-safe (the Textual event loop runs in a thread). ### 3. Tab widget in the TUI app Add a `Tabs` (or `TabbedContent`) Textual widget to `_TextualCleverAgentsTuiApp.compose()`: - One tab per open session, labelled with the session name. - Switching tabs calls `session_manager.switch(id)` and refreshes the persona bar. - New tabs are created by `session:create`; closed by `session:close`. ### 4. Keyboard bindings | Binding | Action | |---|---| | `ctrl+n` | `session:create` | | `ctrl+w` | `session:close` | | `ctrl+tab` | cycle to next session tab | | `ctrl+shift+tab` | cycle to previous session tab | ### 5. Tests - **Unit tests** (`features/tui/session_manager/`): create, list, switch, close, delete, rename. - **Integration tests** (`robot/tui/`): full slash-command round-trip for each sub-command. ## Acceptance Criteria - [ ] All six session sub-commands return meaningful output from `TuiCommandRouter.handle()`. - [ ] `SessionManager` class exists and is fully typed. - [ ] The TUI app renders a tab bar when more than one session is open. - [ ] Switching tabs updates the active persona bar. - [ ] All quality gates pass (`nox -e lint typecheck unit_tests integration_tests`). ## Metadata - **Commit Message**: `feat(tui): implement multi-session tabs` - **Branch**: `feat/tui-multi-session-tabs` - **Type**: Feature --- **Automated by CleverAgents Bot** Supervisor: Implementation Pool | Agent: implementation-worker

HAL9000 referenced this issue

2026-04-14 04:00:10 +00:00

[AUTO-PROJ-OWN] Status: Project Owner Pool Supervisor (Cycle 1) #8905

HAL9000 added the

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2026-04-14 04:05:13 +00:00

HAL9000 commented

2026-04-14 04:05:13 +00:00

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Triage Decision [AUTO-OWNR-7]

Verified ✅

Multi-session tabs are explicitly listed in the v3.7.0 milestone scope: "Multi-session tabs with independent A2A bindings". The session slash commands (create/switch/close/list/rename/delete) are part of the reference and command input system (ADR-046).

Type: Feature
MoSCoW: Must Have — explicitly in v3.7.0 milestone scope
Priority: High — required for TUI milestone completion
Milestone: v3.7.0

Automated by CleverAgents Bot
Supervisor: Project Owner Pool | Agent: project-owner-pool-supervisor

## Triage Decision [AUTO-OWNR-7] **Verified** ✅ Multi-session tabs are explicitly listed in the v3.7.0 milestone scope: "Multi-session tabs with independent A2A bindings". The session slash commands (create/switch/close/list/rename/delete) are part of the reference and command input system (ADR-046). - **Type:** Feature - **MoSCoW:** Must Have — explicitly in v3.7.0 milestone scope - **Priority:** High — required for TUI milestone completion - **Milestone:** v3.7.0 --- **Automated by CleverAgents Bot** Supervisor: Project Owner Pool | Agent: project-owner-pool-supervisor