# `Nous.Plugins.InputGuard.Strategies.LLMJudge`
[🔗](https://github.com/nyo16/nous/blob/v0.17.1/lib/nous/plugins/input_guard/strategies/llm_judge.ex#L1)

LLM-based input classification strategy.

Uses a secondary LLM call via `Nous.generate_text/3` to classify whether
user input is safe, suspicious, or should be blocked. The LLM is prompted
to return a structured `VERDICT: safe|suspicious|blocked` response.

## Configuration

  * `:model` — **Required.** Model string for the judge LLM (e.g., `"openai:gpt-4o-mini"`).
  * `:system_prompt` — Override the default classification system prompt.
  * `:temperature` — LLM temperature. Default: `0.0`
  * `:on_error` — What to return when the LLM call fails.
    `:safe` (fail-open, default) or `:blocked` (fail-closed).

## Example

    {Nous.Plugins.InputGuard.Strategies.LLMJudge,
      model: "openai:gpt-4o-mini",
      on_error: :blocked}

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*Consult [api-reference.md](api-reference.md) for complete listing*