Hallucination

Overview

hallucination is a route-local plugin for fact-checking and response-quality screening after the decision already matched.

It aligns to config/plugin/hallucination/fact-check.yaml.

Key Advantages

• Adds route-local hallucination checks without changing global defaults.
• Makes response actions explicit when factual confidence is low.
• Works well for retrieval-heavy or grounded-answer routes.

What Problem Does It Solve?

Some routes need extra scrutiny after the model answers, especially when they promise factual precision. hallucination lets those routes add response-time verification without forcing every route to pay the cost.

When to Use

• a route should fact-check or annotate responses
• grounded or tool-backed routes need extra response screening
• the route should warn or annotate instead of silently passing low-confidence answers

Configuration

Use this fragment under routing.decisions[].plugins:

plugin:
  type: hallucination
  configuration:
    enabled: true
    use_nli: true
    hallucination_action: annotate
    unverified_factual_action: warn
    include_hallucination_details: true