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commands/draw-c4model.md

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+---
+description: Generate C4 model diagrams (Mermaid + Obsidian canvas) from JSON files
+argument-hint: [level]  # c1, c2, c3, or all
+allowed-tools: Task, Read, Bash
+---
+
+Generate visual diagrams from C4 model JSON files.
+
+## Context
+
+Level: $1 (default: all)
+Available levels: c1 (systems), c2 (containers), c3 (components), all
+
+## Prerequisites
+
+Check JSON files:
+- init.json: !`test -f init.json && echo "✅ exists" || echo "❌ missing"`
+- c1-systems.json: !`test -f c1-systems.json && echo "✅ exists" || echo "❌ missing"`
+- c2-containers.json: !`test -f c2-containers.json && echo "✅ exists" || echo "❌ missing"`
+- c3-components.json: !`test -f c3-components.json && echo "✅ exists" || echo "❌ missing"`
+
+## Workflow
+
+1. **Validate Input**
+   - Level: ${1:-all}
+   - If level specified, check corresponding JSON exists
+   - If "all", check all JSON files exist
+
+2. **Launch c4model-drawer Agent**
+   - Use Task tool to invoke c4model-drawer agent
+   - Pass level parameter: ${1:-all}
+   - Agent will:
+     - Parse JSON files
+     - Generate Mermaid diagrams
+     - Create Obsidian canvas files
+     - Save to knowledge-base/systems/*/diagrams/
+
+3. **Report Results**
+   - List generated diagram files
+   - Show statistics (entities, relations)
+   - Display any errors or warnings
+
+## Output
+
+Generated files:
+- Mermaid diagrams: `knowledge-base/systems/{system}/diagrams/c{1,2,3}-*.md`
+- Canvas files: `knowledge-base/systems/{system}/diagrams/c{1,2,3}-*.canvas`
+
+## Next Steps
+
+After generation:
+- Open diagrams in Obsidian for visualization
+- Review system architecture visually
+- Share diagrams with team
+- Export to PNG/SVG if needed
+
+## Examples
+
+```bash
+# Generate all diagrams
+/melly-draw-c4model all
+
+# Generate only C1 system context
+/melly-draw-c4model c1
+
+# Generate C2 containers
+/melly-draw-c4model c2
+
+# Generate C3 components
+/melly-draw-c4model c3
+```