Skill

cleanup-whiteboard

Use when the user has a photo of a whiteboard, paper sketch, or napkin diagram and wants a clean, publishable version.

npx claudepluginhub danielrosehill/claude-code-plugins --plugin nano-tech-diagrams

Tool Access

This skill uses the workspace's default tool permissions.

Preview

Transform a messy whiteboard photo, paper sketch, or napkin diagram into a clean, polished diagram. The MCP tool `whiteboard_cleanup` extracts the content, vectorizes, and applies a visual style.

SKILL.md

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Cleanup Whiteboard

Transform a messy whiteboard photo, paper sketch, or napkin diagram into a clean, polished diagram. The MCP tool whiteboard_cleanup extracts the content, vectorizes, and applies a visual style.

When to use

User has a photo of a whiteboard drawing and needs a clean version

User has a paper sketch or napkin diagram to digitize

User wants a publishable diagram from a quick hand-drawn rough sketch

User wants side-by-side before/after comparison

Inputs to gather

Source photo path (required) — absolute path to the whiteboard/paper photo

Target style preset (optional) — preset from list-diagram-styles. Default: corporate-clean. Offer to run list-diagram-styles if unsure.

Output path (optional) — where to save cleaned diagram. Default:

${CLAUDE_USER_DATA:-${XDG_DATA_HOME:-$HOME/.local/share}/claude-plugins}/nano-tech-diagrams/diagrams/<slug>-cleaned-<timestamp>.png

Side-by-side comparison (optional) — boolean flag. If true, also generate a comparison image with original and cleaned versions side-by-side.

Procedure

If the MCP is not installed, show the user: claude mcp add nano-tech-diagrams -- npx -y nano-tech-diagrams-mcp and stop.

Validate that the source photo path is readable; fail with a clear message if not found.

Call mcp__nano-tech-diagrams__whiteboard_cleanup with source_image, target_style, generate_comparison.

Extract base64 PNG(s) from the response.

Compute output path(s), ensuring parent directories exist.

Write cleaned diagram to disk.

If comparison was requested, write comparison image to disk (e.g., <slug>-comparison-<timestamp>.png).

Report file paths and fal.media URLs.

Output / side effects

Cleaned PNG saved to disk.

Optional comparison image saved if requested.

User sees local paths and fal.media URLs.

Safety / constraints

Never dump raw base64 into the chat — always write to disk first.

If the cleanup produces poor results, suggest retrying with a different style preset.