text-diagram

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• Text Diagram Drawing
• Critical Rules (NEVER violate)
• Character Sets
• Style A: Pure ASCII (safest, works everywhere)
• Style B: Unicode Light Box Drawing (cleaner look)
• Width Constraints
• Drawing Algorithm
• Step 1: Plan the Layout

Draw professional, pixel-perfect text-based architecture diagrams using monospace characters. Every character must align correctly in a monospace font. 1. Calculate widths BEFORE drawing. Never freehand a diagram. Always compute column widths, box widths, and total widths first, then render. 2. Every line in a box must be the SAME character length. Count characters. Verify. 3. Use ONLY ASCII-safe monospace characters for borders: |, -, + for basic; or Unicode box-drawing (see charset below). Never mix styles in one diagram. 4. Pad content with spaces to fill the full inner width of every box. 5. Vertical connectors (| or │) must be at the EXACT same column position on every line between two boxes. 6. After drawing, mentally re-count character positions of the first line, last line, and any connector lines to verify alignment. 7. One box-drawing style per diagram. Don't mix +--+ with ┌──┐. Style C: Unicode Rounded (╭ ╮ ╰ ╯, rest same as B). Style D: Double-line (╔ ╗ ╚ ╝, ═, ║, T-junc ╠ ╣ ╦ ╩) for emphasis/outer containers. Style E: Dashed borders (¦ or : or ╎, horiz - - -) for secondary containers. Default max width: 80 characters (standard terminal). Use 120 for wide diagrams. If a

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