/model with no args now shows an interactive UI on Telegram and Discord
instead of a text list:
Telegram: Inline keyboard buttons — two-step drill-down.
Step 1: Provider buttons with model counts (e.g. 'OpenRouter (15)')
Step 2: Model buttons within the selected provider
Edits the same message in-place as the user navigates.
Back/Cancel buttons for navigation.
Discord: Embed + Select dropdown menus via discord.ui.View.
Step 1: Provider dropdown with model counts
Step 2: Model dropdown within the selected provider
Back/Cancel buttons. Auth-gated to allowed users.
Platforms without picker support (Slack, WhatsApp, Signal, etc.)
fall back to the existing text list.
/model <name> continues to work as a direct text switch on all
platforms — the interactive picker is only for bare /model.
Implementation:
- TelegramAdapter.send_model_picker() + _handle_model_picker_callback()
with compact callback_data (mp:/mm:/mb/mx, all within 64-byte limit)
- DiscordAdapter.send_model_picker() + ModelPickerView (discord.ui.View)
with Select menus (up to 25 options per dropdown)
- GatewayRunner._handle_model_command() detects adapter capability via
getattr(type(adapter), 'send_model_picker', None) (safe with mocks)
and sends picker with async callback closure for the switch logic
- Callback performs full switch: switch_model(), cached agent update,
session override, pending model note — same as /model <name>
5a2cf280a3