nika-init 0.64.0

Nika project scaffolding — course generator, workflow templates, showcase
Documentation 
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# =============================================================================
# SHOWCASE 01 — Image Optimization Pipeline
# =============================================================================
# requires_llm: true
# category: advanced
#
# Downloads an image, runs it through a multi-step media pipeline
# (thumbnail + strip + optimize + convert), then uses vision to
# compare original vs optimized and produce an analysis report.

schema: "nika/workflow@0.12"
workflow: image-optimization-pipeline
provider: "{{PROVIDER}}"
model: "{{MODEL}}"

artifacts:
  dir: .

tasks:
  - id: download_original
    fetch:
      url: "https://picsum.photos/1200/800.jpg"
      response: binary
      timeout: 20

  - id: original_dims
    depends_on: [download_original]
    with:
      img: $download_original
    invoke:
      tool: "nika:dimensions"
      params:
        hash: "{{with.img.media[0].hash}}"

  - id: make_thumbnail
    depends_on: [download_original]
    with:
      img: $download_original
    invoke:
      tool: "nika:thumbnail"
      params:
        hash: "{{with.img.media[0].hash}}"
        width: 400
    artifact:
      path: output/thumbnail.jpg
      format: binary

  - id: optimize_pipeline
    depends_on: [download_original]
    with:
      img: $download_original
    invoke:
      tool: "nika:pipeline"
      params:
        hash: "{{with.img.media[0].hash}}"
        steps:
          - op: thumbnail
            width: 800
          - op: strip
          - op: convert
            format: webp
    artifact:
      path: output/optimized.webp
      format: binary

  - id: optimize_thumb
    depends_on: [make_thumbnail]
    with:
      thumb: $make_thumbnail
    invoke:
      tool: "nika:optimize"
      params:
        hash: "{{with.thumb.media[0].hash}}"
    artifact:
      path: output/optimized-thumb.png
      format: binary

  - id: color_palette
    depends_on: [download_original]
    with:
      img: $download_original
    invoke:
      tool: "nika:dominant_color"
      params:
        hash: "{{with.img.media[0].hash}}"
        count: 6
    artifact:
      path: output/colors.json
      format: json

  - id: analysis_report
    depends_on: [original_dims, optimize_pipeline, color_palette, optimize_thumb]
    with:
      dims: $original_dims
      optimized: $optimize_pipeline
      colors: $color_palette
      thumb: $optimize_thumb
    infer:
      content:
        - type: image
          source: "{{with.optimized.media[0].hash}}"
          detail: high
        - type: text
          text: |
            Analyze this image optimization pipeline:

            ## Original Dimensions
            {{with.dims}}

            ## Color Palette
            {{with.colors}}

            ## Pipeline Output
            {{with.optimized}}

            ## Thumbnail
            {{with.thumb}}

            Write a technical report covering:
            1. Compression ratio achieved
            2. Visual quality assessment of the optimized image above
            3. Color palette analysis and dominant tones
            4. WebP format advantages for this image
            5. Recommendations for production web delivery
      temperature: 0.3
      max_tokens: 1500
    artifact:
      path: output/optimization-report.md