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📊 Markdown Table Formatter
Align messy Markdown tables so the raw source is actually readable, or build a clean GitHub-Flavored table from pasted CSV. Pads every column to its widest cell, normalizes the header separator row, and preserves your alignment markers (:--, :--:, --:). Changes spacing only, never the cell content. Prints to the screen by default and rewrites the file in place only when you ask.
Free
About this skill
What it does
The Markdown Table Formatter is a specialized utility designed to clean up messy, poorly aligned GitHub-Flavored Markdown (GFM) tables. It normalizes column widths and handles spacing to ensure your documentation remains readable in raw text format. Beyond simple formatting, it provides bridge functionality to convert CSV and TSV data directly into valid Markdown tables.
Why use this skill
Manual table formatting in Markdown is tedious and error-prone. While many AI agents can "fix" a table, they often hallucinate cell content or alter data unintentionally. This skill uses a deterministic formatting engine that guarantees cell content remains untouched while strictly enforcing structural alignment. It is ideal for developers maintaining large documentation repositories where visual consistency is required.
Supported features
- Visual Alignment: Automatically adjusts padding so columns line up perfectly.
- CSV/TSV Conversion: Quickly transform spreadsheet exports into Markdown.
- Safety First: Built-in guardrails prevent overwriting files without explicit flags.
- GFM Compliance: Outputs tables compatible with GitHub, GitLab, and most modern Markdown parsers.
Details
How to install
Drop the file into your AI Agent. Works with Claude, Cursor, ChatGPT, and 20+ more.
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Security Scanned
Passed automated security review
Permissions
File Scopes
Prints formatted output to stdout by default. A --from-csv mode turns pasted CSV or TSV into a table. It only adjusts spacing and alignment; it does not change what the cells say. Reads no environment variables.
Creator
JustHandled Labs builds focused agent skills for the work nobody wants to do by hand. Each one is a single repeatable job done well: catching the security and data mistakes that quietly ship, keeping docs and tests honest, gating the commands an agent is about to run, sharpening writing, and handling the founder chores around launches, outreach, and brand setup. Not generic AI productivity. Specific workflows that are easy to run, review, and repeat. Maintained by H.J. Westerfield, with a background in communications, editing, project coordination, customer support, and practical AI systems. Tools for people who want useful automation without theatrical complexity.
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