Teknium
12871bd01e
`provider_routing.models.<model-id>` now takes the same only/ignore/order/sort/
require_parameters/data_collection keys and overlays the flat provider_routing
values whenever the agent is on that model. Resolution lives in the one
chokepoint every request path already uses (_provider_preferences_for_agent),
so CLI, gateway, TUI/Desktop, cron, /model switches, fallback activation and
delegated children on another model all honour it with no per-surface plumbing.
Matching is spelling-tolerant, sharing _canonical_model_variants with
agent.reasoning_overrides.
The OpenRouter profile's speed-tier pin no longer overwrites an explicit user
`only` on the BASE gpt-6-astra slug: the pin exists to keep default routing off
flex/fast, and a user pin is the stronger intent (only: [openai] stays [openai]
instead of becoming [openai, azure, azure/us]). Tier slugs (-fast/-flex) keep
owning `only`.
Live A/B (config only: {gpt-6-astra: [openai], claude-fable-5.1: [anthropic]}):
main sent {"sort":"price"} for fable and OpenRouter served it from Azure; with
this change it sends {"only":["anthropic"],"sort":"price"} and Anthropic serves it.
Schema proposed in #24495 (samplesabotage) and #100711 (Artemonim); this is a
slim chokepoint implementation of that design.
Co-authored-by: samplesabotage <samplesabotage@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.