https://aescripts.com/path-visualizer/

Path Visualizer draws vertices, beziers and handles based on your text or paths, updating live with any animation. Great for technical/blueprint styles.

• Turn paths into clear, dynamic visual graphics with Path Visualizer for Adobe After Effects. Designed for motion designers, technical animators, and artists working with blueprint-style visuals, Path Visualizer automatically displays vertices, Bezier curves, and control handles directly from your text, shape layers, and masks.
• The visualization updates live as your animation changes, making it ideal for technical presentations, interface graphics, motion design breakdowns, educational visuals, and stylized path animations.
• Customize the appearance of your paths with multiple vertex styles including circles, diamonds, and squares, while adjusting handle length, width, color, stroke, and other stylistic parameters to match your project. Path Visualizer also adapts to the scale of your text or path, allowing you to resize your artwork while maintaining clean, resolution-independent results.