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Visualizations

Visualization outputs are derived summaries, not independent evidence. Every canonical render run writes a visualization_manifest.json that records the input curriculum hashes, stable item IDs, output hashes, and the semantic limit that charts describe structure rather than factual truth.

Flow Diagrams

The pipeline produces flow diagrams for domains/entities and the overall curriculum structure (Mermaid source files). View and edit the .mmd sources directly.

Canonical examples:

  • data/visualizations/diagrams/curriculum_structure.mmd
  • data/visualizations/diagrams/<stable-item-id>_flow.mmd
  • data/visualizations/visualization_manifest.json

Section Breakdown Charts

Bar charts summarizing section metrics.

Artifacts:

  • data/visualizations/charts/curriculum_metrics.png

Metrics

Aggregate curriculum metrics used for charts and diagnostics.

Artifacts:

  • data/visualizations/metrics/curriculum_metrics.csv
  • data/visualizations/metrics/curriculum_metrics.json

How to Regenerate

Run from the repository root:

uv run start-curriculum --non-interactive --stages visualizations --json

The render stage consumes data/written_curriculums/, uses stable identifiers for filenames, and writes the CSV, JSON, PNG, Mermaid diagrams, and manifest as one inspectable bundle. The manifest is the authoritative link between inputs and derived outputs; it does not assert that a visual interpretation is true.

Headless/CI environments

If running without a display (servers, CI), set a non-GUI backend for matplotlib:

export MPLBACKEND=Agg
uv run start-curriculum --non-interactive --stages visualizations --json

Troubleshooting

  • Ensure inputs exist in data/written_curriculums/ before generating charts.
  • Confirm write permissions for data/visualizations/.
  • Check data/visualizations/metrics/curriculum_metrics.json for the metric schema if charts appear empty. The bundle manifest is at data/visualizations/visualization_manifest.json.