Will this skill accidentally format my Markdown tables?

No, the skill includes specific logic to distinguish between box diagrams and Markdown tables, ensuring your tables remain untouched.

Can it handle complex nested diagrams?

Yes, the skill is designed to measure the outermost border and ensure all internal content lines, including those containing nested boxes, align to the correct column.

Does this skill support Unicode box characters?

Yes, it supports both classic plus-dash styles (+---+) and modern Unicode box-drawing characters (┌───┐).

Do I need to install any Python scripts for this to work?

While a validation script is available in the repository, the core functionality is prompt-driven and works directly within Claude Code.

ASCII Art Border Fixer

Name: ASCII Art Border Fixer
Author: fairchild

byfairchild

•

開発者ツール

Corrects misaligned right borders in ASCII and Unicode box diagrams while preserving markdown tables and internal text.

This skill provides a surgical, prompt-driven solution for fixing broken or misaligned ASCII art diagrams within technical documentation and code comments. It automatically identifies rectangular box structures—supporting both classic plus-dash and modern Unicode styles—calculates the required border width, and pads content lines with spaces to ensure the right-side border is perfectly aligned. By intelligently distinguishing between box diagrams, flow arrows, and standard Markdown tables, it allows developers to maintain clean visual documentation without the tedious manual reformatting usually required after text edits.

主な機能

01Purely prompt-driven execution requiring no external dependencies

02Supports both ASCII (plus-dash) and Unicode box drawing characters

031 GitHub stars

04Preserves flow arrows, connectors, and external text alignment

05Surgical precision to ignore Markdown tables and fenced code blocks

06Intelligent padding logic for nested box-within-box structures

ユースケース

01Repairing system architecture diagrams in README files after content updates

02Cleaning up hand-drawn text diagrams to maintain professional formatting

03Standardizing box border alignment across large documentation sets

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add fairchild/dotclaude ascii-art-fix

For use in Claude.ai and ChatGPT