teknium1
773a0faca0
Closes #26924 (and supersedes #26926) in spirit. DeepSeek was missing `default_aux_model` on its `ProviderProfile`, so `_get_aux_model_for_provider("deepseek")` returned an empty string and the compression / vision / session-search paths emitted "No auxiliary LLM provider configured -- context compression will drop middle turns without a summary." on every DeepSeek session, even when the user had perfectly working DeepSeek credentials. Fix lands at the profile layer rather than the legacy `_API_KEY_PROVIDER_AUX_MODELS_FALLBACK` dict the original PR targeted. Every modern provider (gemini, zai, minimax, anthropic, kimi-coding, stepfun, ollama-cloud, gmi, novita, kilocode, ai-gateway, opencode-zen) sets `default_aux_model` on its `ProviderProfile`; the fallback dict only exists for providers that predate the profiles system. Tests added under `tests/plugins/model_providers/test_deepseek_profile.py`: - `test_profile_advertises_deepseek_chat` -- pins the profile attribute - `test_consumer_api_returns_deepseek_chat` -- pins the consumer API behavior - `test_consumer_api_returns_non_empty` -- regression guard for the symptom in the issue Original diagnosis and aux-model choice from @kriscolab in PR #26926; moved one layer up. Co-authored-by: kriscolab <71590782+kriscolab@users.noreply.github.com>
Model Provider Plugins
Each subdirectory is a self-contained provider profile plugin. The
directory layout mirrors plugins/platforms/:
plugins/model-providers/
├── openrouter/
│ ├── __init__.py # registers the ProviderProfile
│ └── plugin.yaml # manifest: name, kind, version, description
├── anthropic/
│ ├── __init__.py
│ └── plugin.yaml
└── ...
How discovery works
providers/__init__.py._discover_providers() scans this directory (and
$HERMES_HOME/plugins/model-providers/) the first time anything calls
get_provider_profile() or list_providers(). Each __init__.py is
imported and expected to call providers.register_provider(profile).
User plugins at $HERMES_HOME/plugins/model-providers/<name>/ override
bundled plugins of the same name — last-writer-wins in
register_provider(). Drop a file there to replace a built-in.
Adding a new provider
-
Create
plugins/model-providers/<your_provider>/__init__.py:from providers import register_provider from providers.base import ProviderProfile my_provider = ProviderProfile( name="your-provider", aliases=("alias1", "alias2"), display_name="Your Provider", description="One-line description shown in the setup picker", signup_url="https://your-provider.example.com/keys", env_vars=("YOUR_PROVIDER_API_KEY", "YOUR_PROVIDER_BASE_URL"), base_url="https://api.your-provider.example.com/v1", default_aux_model="your-cheap-model", ) register_provider(my_provider) -
Create
plugins/model-providers/<your_provider>/plugin.yaml:name: your-provider-profile kind: model-provider version: 1.0.0 description: Short sentence about the provider author: Your Name
Nothing else needs to change. auth.py, config.py, models.py,
doctor.py, model_metadata.py, runtime_provider.py, and the
chat_completions transport all auto-wire from the registry.
Non-trivial profiles
Override the ProviderProfile hooks in a subclass for per-provider
quirks — see plugins/model-providers/openrouter/__init__.py for
build_extra_body and build_api_kwargs_extras examples, and
plugins/model-providers/gemini/__init__.py for thinking_config
translation.