OptionaldriverClass: stringOptionalDriverOptional: explicit LLM driver class name (e.g., "AnthropicLLM", "VertexLLM"). When set, the engine uses this directly for ClassFactory instead of mapping from the Vendor string. Set by Layer 2 from AI Model metadata.
Model identifier (e.g., "claude-sonnet-4-5-20250929", "gpt-4o")
AI vendor identifier (e.g., "anthropic", "openai", "google")
Lightweight model selection for the controller and judge LLMs.
Layer 1 only needs vendor + model name strings — it passes these to the LLM provider without MJ-specific entity resolution. Layer 2 overrides this with MJ prompt entity references.