nika-init 0.64.0

Nika project scaffolding — course generator, workflow templates, showcase
Documentation 
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# =============================================================================
# SHOWCASE 06 — Multi-Provider Debate
# =============================================================================
# requires_llm: true
# category: advanced
#
# Sends the same question to 3 perspectives in parallel using for_each,
# then uses a judge LLM to evaluate with structured output.

schema: "nika/workflow@0.12"
workflow: multi-provider-debate
provider: "{{PROVIDER}}"
model: "{{MODEL}}"

artifacts:
  dir: .

inputs:
  debate_topic:
    type: string
    default: "Should AI systems be required to explain their reasoning?"

tasks:
  - id: debate_round
    for_each:
      - { name: "Pragmatist", style: "Focus on costs and benefits." }
      - { name: "Ethicist", style: "Focus on fairness and transparency." }
      - { name: "Technologist", style: "Focus on technical feasibility." }
    as: perspective
    concurrency: 3
    infer:
      system: "You are the {{with.perspective.name}}. {{with.perspective.style}}"
      prompt: |
        Topic: {{inputs.debate_topic}}
        Present your position with 3 key arguments in 200 words.
      temperature: 0.7
      max_tokens: 600

  - id: judge_evaluation
    depends_on: [debate_round]
    with:
      arguments: $debate_round
    infer:
      prompt: |
        Judge these debate perspectives on "{{inputs.debate_topic}}":
        {{with.arguments}}
        Score each on coherence, evidence, persuasiveness (1-10). Declare a winner.
      response_format: json
      temperature: 0.2
      max_tokens: 1500
    structured:
      schema:
        type: object
        properties:
          evaluations:
            type: array
            items:
              type: object
              properties:
                perspective:
                  type: string
                total:
                  type: integer
              required: [perspective, total]
          winner:
            type: string
          reasoning:
            type: string
        required: [evaluations, winner, reasoning]
    artifact:
      path: output/debate-results.json
      format: json

  - id: synthesis
    depends_on: [judge_evaluation]
    with:
      results: $judge_evaluation
    infer:
      prompt: |
        Based on this debate: {{with.results}}
        Write a 200-word synthesis combining the best arguments.
      temperature: 0.5
      max_tokens: 500
    artifact:
      path: output/debate-synthesis.md