Files
hermes-agent/plugins/model-providers
kshitijk4poor 5d9a72b7c2 fix(ollama-cloud): capability-gate reasoning_effort + correct disable semantics
Three follow-up fixes to the salvaged reasoning_effort support, all verified
live against ollama.com /v1/chat/completions + /api/show on deepseek-v4-pro,
gemma3, and qwen3-coder:

1. Capability-gate on /api/show 'thinking'. The original ignored the
   supports_reasoning flag and emitted reasoning_effort for every model. Now
   gated: only models whose native /api/show capabilities list contains
   'thinking' (deepseek-v4 yes; gemma3 / qwen3-coder no) get reasoning_effort.
   Mirrors the LM Studio pattern — capability resolved once per (model,
   base_url) in run_agent._supports_reasoning_extra_body via a cached probe
   (hermes_cli.models.ollama_model_supports_thinking), threaded into the
   profile hook as supports_reasoning. No live HTTP in the per-request path.

2. Disable actually disables. Ollama Cloud defaults to thinking ON and IGNORES
   the extra_body.thinking:{type:disabled} shape (verified: still returned
   reasoning). The only working off switch is top-level reasoning_effort:'none'.
   The salvaged code returned ({}, {}) for enabled:false / effort:none, leaving
   thinking ON. Now emits {'reasoning_effort': 'none'}.

3. Omit unrecognized effort. The original forwarded any unknown string verbatim
   including 'minimal' (a real Hermes effort level). Ollama Cloud rejects
   unrecognized values with a hard HTTP 400 (accepted set: low/medium/high/
   max/none), so forwarding 'minimal' would break the request. Now omitted.

Core touches (run_agent.py, hermes_cli/models.py) add the capability probe;
the plugin profile only consumes the resolved flag. 24/24 profile tests green;
194 provider/transport tests unaffected.
2026-07-16 07:58:04 -07:00
..
2026-07-16 01:13:43 -07:00
…
…

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

  1. 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)
    
  2. 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.