Claude-skill-registry-data md-table-formatter

Automatically formats Markdown tables with proper column alignment after file edits. Use when working with Markdown files containing tables.

install

source · Clone the upstream repo

git clone https://github.com/majiayu000/claude-skill-registry-data

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/majiayu000/claude-skill-registry-data "$T" && mkdir -p ~/.claude/skills && cp -r "$T/data/md-table-formatter" ~/.claude/skills/majiayu000-claude-skill-registry-data-md-table-formatter && rm -rf "$T"

manifest: data/md-table-formatter/SKILL.md

source content

Markdown Table Formatter

Automatically formats Markdown tables with proper column alignment.

Features

Auto-formatting - Tables are formatted after Write/Edit operations on .md files
Alignment support - Left (
```
:---
```
), center (
```
:---:
```
), and right (
```
---:
```
)
Unicode aware - Handles emoji and CJK characters correctly
Code preservation - Preserves markdown inside inline code blocks

How It Works

The PostToolUse hook triggers after file edits:

Detects if the file is Markdown (.md, .mdx)
Parses all tables in the file
Calculates column widths (accounting for hidden markdown symbols)
Pads cells for alignment
Writes formatted content back

Table Syntax

| Left | Center | Right |
|:-----|:------:|------:|
| A    |   B    |     C |

Requirements

For best results with CJK/emoji characters:

pip install wcwidth