The Telegram/Discord /model command's actual switch calls switch_model()
directly on the asyncio event loop. switch_model() can fall through to a
synchronous models.dev HTTP fetch (requests.get, 15s timeout) on a cold or
expired cache, freezing the gateway for up to 15s and dropping the Telegram
connection while a user switches models.
The picker provider-list and fallback text-list sites were already offloaded
(#41289), but the two _switch_model() calls — the picker callback and the
direct /model <name> path — were not. Wrap both in asyncio.to_thread.
Closes#20525.
- Add custom_provider_slug() to hermes_cli/providers.py as the single
source of truth for building 'custom:<name>' slugs.
- Use it in resolve_custom_provider() and list_authenticated_providers()
instead of duplicated inline slug construction.
- Add _session_model_overrides and _voice_mode to gateway test runner
for object.__new__() safety.
Custom providers defined in config.yaml under were
completely invisible to the /model command in both gateway (Telegram,
Discord, etc.) and CLI. The provider listing skipped them and explicit
switching via --provider failed with "Unknown provider".
Root cause: gateway/run.py, cli.py, and model_switch.py only read the
dict from config, ignoring entirely.
Changes:
- providers.py: add resolve_custom_provider() and extend
resolve_provider_full() to check custom_providers after user_providers
- model_switch.py: propagate custom_providers through switch_model(),
list_authenticated_providers(), and get_authenticated_provider_slugs();
add custom provider section to provider listings
- gateway/run.py: read custom_providers from config, pass to all
model-switch calls
- cli.py: hoist config loading, pass custom_providers to listing and
switch calls
Tests: 4 new regression tests covering listing, resolution, and gateway
command handler. All 71 tests pass.
