ElBruno.AI.Decisions.Ollama 0.6.2

ElBruno.AI.Decisions.Ollama

Native local System One decisions through Ollama and the shared .NET 10 IDecisionClient API: Choose, Score and Assess. Uses /v1/systemone, not chat prompting or first-token logprobs.

dotnet add package ElBruno.AI.Decisions.Ollama --version 0.6.2
ollama pull nimble

Requires a running Ollama v0.35.0 or later and a local System One decision model such as nimble, Tev1, clef, or clef-flash, not a general-purpose chat model. No local API key is required.

Quickstart

using ElBruno.AI.Decisions.Ollama;

using var client = new OllamaDecisionClient(new OllamaDecisionOptions
{
    Endpoint = new Uri("http://localhost:11434/"),
    Model = "nimble"
});
var teams = new Dictionary<string, string?>
{
    ["billing"] = "Invoices and payments",
    ["support"] = "Technical problems"
};
var result = await client.ChooseAsync(
    "Please correct my invoice.", "Which team should handle this request?", teams);
Console.WriteLine($"{result.Choice}: {result.Confidence:P1}");

URL template: http://<ollama-host>:11434/v1/systemone. Resource roots append that path; full invocation URLs are preserved.

Illustrative response (not a live test result)

{
  "model": "nimble",
  "answers": {
    "decision": {
      "type": "choice",
      "choice": "billing",
      "probabilities": { "billing": 0.9, "support": 0.1 },
      "confidence": 0.531
    }
  },
  "usage": { "input_tokens": 174, "output_tokens": 1 }
}

Example output: billing: 53.1% (culture-dependent formatting). Confidence measures distribution concentration, 1 - H(p) / ln(N), not calibrated correctness or the selected-label probability.

Choice limits depend on the model (typically 2-26 options; API maximum 255). Score supports 2-10 ordered rubric levels and preserves fractional zero-based scores. Assess returns native Noul proposition probability without a hidden boolean threshold. Text requests are limited to 64 KiB, never truncated. The shared API exposes one text question per call, not images or batches.

Tentative early access: live local decision-model compatibility remains unverified. Offline contract checks do not prove model behavior. Native System One support requires 0.6.1 or later; 0.6.0 used the old chat-logprob implementation.

Complete sample | Official decision guide | System One API | Repository