chore(matplotlib): add metadata for sankey-basic

Author: github-actions[bot]

plots/sankey-basic/metadata/python/matplotlib.yaml

@@ -1,214 +1,21 @@
+# Per-library metadata for matplotlib implementation of sankey-basic
+# Auto-generated by impl-generate.yml
+
 library: matplotlib
+language: python
 specification_id: sankey-basic
 created: '2025-12-23T19:45:16Z'
-updated: '2025-12-23T19:54:48Z'
-generated_by: claude-opus-4-5-20251101
-workflow_run: 20469994054
-issue: 0
-python_version: 3.13.11
-library_version: 3.10.8
-preview_url: https://storage.googleapis.com/anyplot-images/plots/sankey-basic/matplotlib/plot.png
-preview_html: null
-quality_score: 91
-impl_tags:
-  dependencies: []
-  techniques: []
-  patterns: []
-  dataprep: []
-  styling:
-  - alpha-blending
-  - minimal-chrome
+updated: '2026-04-30T08:47:31Z'
+generated_by: claude-sonnet
+workflow_run: 25156094188
+issue: 810
+python_version: 3.13.13
+library_version: 3.10.9
+preview_url_light: https://storage.googleapis.com/anyplot-images/plots/sankey-basic/python/matplotlib/plot-light.png
+preview_url_dark: https://storage.googleapis.com/anyplot-images/plots/sankey-basic/python/matplotlib/plot-dark.png
+preview_html_light: null
+preview_html_dark: null
+quality_score: null
 review:
-  strengths:
-  - Excellent use of matplotlib Sankey module with two connected diagrams showing
-    realistic energy flow scenario
-  - Clear color distinction between input sources (blue) and output distribution (yellow)
-    aids comprehension
-  - All labels include both descriptive names and quantitative values with units (TWh)
-  - Energy balance is mathematically verified in code (300 TWh in = 200 TWh out +
-    100 TWh losses)
-  - Clean layout with axes turned off and informative subtitle explaining the flow
-    pattern
-  - Appropriate font sizes (18pt labels, 26pt title) ensure readability at full resolution
-  weaknesses:
-  - Missing explicit legend to explain that blue represents primary energy sources
-    and yellow represents end-use distribution
-  - The assert statement adds slight complexity that could be replaced with a comment
-  image_description: "The plot displays a Sankey diagram illustrating national energy\
-    \ flow. The diagram uses two distinct colors: blue (steel blue #306998) for the\
-    \ primary energy sources and losses, and yellow/gold (#FFD43B) for the end-use\
-    \ distribution. \n\n**Left side (blue flows):** Four input sources flow into a\
-    \ central hub - Coal (120 TWh) from the bottom, Natural Gas (90 TWh) from the\
-    \ left, Nuclear (60 TWh) from the top, and Renewables (30 TWh) from the top-left.\
-    \ A Losses branch (100 TWh) exits downward from the hub.\n\n**Right side (yellow\
-    \ flows):** The remaining 200 TWh flows to four end-use sectors - Industrial (80\
-    \ TWh) upward, Transport (20 TWh) upper-right, Commercial (45 TWh) rightward,\
-    \ and Residential (55 TWh) downward.\n\n**Title:** \"National Energy Flow · sankey-basic\
-    \ · matplotlib · pyplots.ai\" at the top in bold.\n**Subtitle:** Italicized explanatory\
-    \ text at the bottom describing the flow pattern.\n**Labels:** Each flow is labeled\
-    \ with its name and TWh value in bold 18pt font.\n**Layout:** Clean white background,\
-    \ axes are turned off, good use of canvas space."
-  criteria_checklist:
-    visual_quality:
-      score: 36
-      max: 40
-      items:
-      - id: VQ-01
-        name: Text Legibility
-        score: 9
-        max: 10
-        passed: true
-        comment: All labels clearly readable with 18pt bold font, title at 26pt
-      - id: VQ-02
-        name: No Overlap
-        score: 8
-        max: 8
-        passed: true
-        comment: No overlapping text elements, labels well positioned
-      - id: VQ-03
-        name: Element Visibility
-        score: 7
-        max: 8
-        passed: true
-        comment: Flows are appropriately sized with good proportions, alpha=0.75 provides
-          visibility while allowing overlap perception
-      - id: VQ-04
-        name: Color Accessibility
-        score: 5
-        max: 5
-        passed: true
-        comment: Blue and yellow are colorblind-safe and provide excellent contrast
-      - id: VQ-05
-        name: Layout Balance
-        score: 4
-        max: 5
-        passed: true
-        comment: Good canvas utilization, diagram fills most of the space, minor asymmetry
-          on left side
-      - id: VQ-06
-        name: Axis Labels
-        score: 2
-        max: 2
-        passed: true
-        comment: N/A for Sankey, but all nodes labeled with descriptive names and
-          units (TWh)
-      - id: VQ-07
-        name: Grid & Legend
-        score: 1
-        max: 2
-        passed: true
-        comment: No grid needed for Sankey (correct), but could benefit from a legend
-          explaining blue=sources vs yellow=end-use
-    spec_compliance:
-      score: 24
-      max: 25
-      items:
-      - id: SC-01
-        name: Plot Type
-        score: 8
-        max: 8
-        passed: true
-        comment: Correct Sankey diagram implementation using matplotlib.sankey
-      - id: SC-02
-        name: Data Mapping
-        score: 5
-        max: 5
-        passed: true
-        comment: Flows correctly show source→target with widths proportional to values
-      - id: SC-03
-        name: Required Features
-        score: 5
-        max: 5
-        passed: true
-        comment: Shows multiple sources, transformation/losses stage, and multiple
-          destinations
-      - id: SC-04
-        name: Data Range
-        score: 3
-        max: 3
-        passed: true
-        comment: All data visible, energy balance verified (300 = 200 + 100)
-      - id: SC-05
-        name: Legend Accuracy
-        score: 1
-        max: 2
-        passed: true
-        comment: Labels are accurate but no explicit legend for color meaning
-      - id: SC-06
-        name: Title Format
-        score: 2
-        max: 2
-        passed: true
-        comment: Correctly formatted as "National Energy Flow · sankey-basic · matplotlib
-          · pyplots.ai"
-    data_quality:
-      score: 19
-      max: 20
-      items:
-      - id: DQ-01
-        name: Feature Coverage
-        score: 7
-        max: 8
-        passed: true
-        comment: Shows multiple sources, losses, and multiple destinations; demonstrates
-          flow proportionality well
-      - id: DQ-02
-        name: Realistic Context
-        score: 7
-        max: 7
-        passed: true
-        comment: Energy flow is a classic Sankey application with realistic TWh values
-      - id: DQ-03
-        name: Appropriate Scale
-        score: 5
-        max: 5
-        passed: true
-        comment: Values are realistic for national energy data (300 TWh total)
-    code_quality:
-      score: 9
-      max: 10
-      items:
-      - id: CQ-01
-        name: KISS Structure
-        score: 3
-        max: 3
-        passed: true
-        comment: 'Simple linear structure: imports → data → plot → save'
-      - id: CQ-02
-        name: Reproducibility
-        score: 2
-        max: 3
-        passed: true
-        comment: 'Deterministic data (no random), but no explicit seed needed; minor:
-          assert statement adds slight complexity'
-      - id: CQ-03
-        name: Clean Imports
-        score: 2
-        max: 2
-        passed: true
-        comment: Only matplotlib.pyplot and matplotlib.sankey imported
-      - id: CQ-04
-        name: No Deprecated API
-        score: 1
-        max: 1
-        passed: true
-        comment: Uses current matplotlib.sankey API
-      - id: CQ-05
-        name: Output Correct
-        score: 1
-        max: 1
-        passed: true
-        comment: Saves as 'plot.png' with dpi=300
-    library_features:
-      score: 3
-      max: 5
-      items:
-      - id: LF-01
-        name: Uses distinctive library features
-        score: 3
-        max: 5
-        passed: true
-        comment: Uses matplotlib.sankey module correctly with multiple connected diagrams,
-          custom pathlengths, and orientations. Could leverage more advanced features
-          like trunk customization.
-  verdict: APPROVED
+  strengths: []
+  weaknesses: []