@spec available?() :: boolean()

Checks if the Ollama server is reachable at the configured base URL.

@spec capabilities() :: LlmCore.LLM.Provider.capabilities()

Returns the Ollama capability map including streaming, structured output, and tool use support.

@spec provider_type() :: :local

Returns :local — Ollama is a local inference provider.

@spec send(
  LlmCore.LLM.Provider.prompt(),
  keyword()
) :: {:ok, LlmCore.LLM.Response.t()} | {:error, LlmCore.LLM.Error.t()}

Sends a prompt to the Ollama chat API and returns the response.

When opts[:tools] contains a list of LlmToolkit.Tool structs, tool definitions are encoded into the request body (OpenAI-compatible format). If the model responds with tool calls, the returned Response.tool_calls will contain decoded LlmToolkit.Tool.Call structs.

@spec stream(
  LlmCore.LLM.Provider.prompt(),
  keyword()
) :: {:ok, Enumerable.t()} | {:error, LlmCore.LLM.Error.t()}

Streams a response from the Ollama chat API.