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md-table-formatter

md-table-formatter is a skill for Claude Code from neardws/droid-skills. It costs 26 tokens per session (248 once invoked), scanned A, original, MIT.

A formatter for Markdown tables, which are tables written in plain-text files. It aligns columns after Markdown files are edited and keeps support for left, centred, and right alignment, emoji, CJK characters, inline code, and MDX files.

In plain words
What is it for?
Use it when editing Markdown or MDX files that contain tables and you want their columns kept aligned.
Why use it?
Manually aligned tables often become uneven after editing, especially when cells contain emoji or East Asian characters. It rewrites the table layout automatically after file changes.

Skill for Claude Code

Written for Claude Code: PostToolUse hook event.

not rated 6repo 9mo ago A scan 26 tokens original MIT

Good fit Use it when editing Markdown or MDX files that contain tables and you want their columns kept aligned.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/neardws/droid-skills/md-table-formatter
View source ↗ neardws/droid-skills
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add neardws/droid-skills --skill md-table-formatter
Clone the repo
git clone --depth 1 https://github.com/neardws/droid-skills

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for md-table-formatter

README.md
[![agentmods](https://agentmods.dev/badge/skills/neardws/droid-skills/md-table-formatter/github.svg)](https://agentmods.dev/skills/neardws/droid-skills/md-table-formatter)
Your own site
<a href="https://agentmods.dev/skills/neardws/droid-skills/md-table-formatter"><img src="https://agentmods.dev/badge/skills/neardws/droid-skills/md-table-formatter/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for md-table-formatter

Your own site · 80×15
<a href="https://agentmods.dev/skills/neardws/droid-skills/md-table-formatter"><img src="https://agentmods.dev/badge/skills/neardws/droid-skills/md-table-formatter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 248 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00026 $0.00248
Opus 5.5 $0.00010 $0.00099
Sonnet 5.5 $0.00005 $0.00050
Haiku 4.5 $0.00003 $0.00025

Measured 2mo ago against content hash b84e97d5ed6d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

md-table-formatter scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/format-tables.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/md-table-formatter/SKILL.md · 40 lines

What it actually says

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:

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

Table Syntax

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

Requirements

For best results with CJK/emoji characters:

pip install wcwidth
Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 40 lines · 26 tokens per session scan A b84e97d5ed6d

Subscribe to this mod's changes

md-table-formatter is a skill published in the GitHub repository neardws/droid-skills (6 stars, last pushed 9mo ago), licensed MIT. It adds 26 tokens to every session and 248 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Writing and docs
Related

md-table-formatter compared with skills from other repositories

md-table-formatter next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
md-table-formatterneardws/droid-skillsSkill69mo agoMITA26Claude Code
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systematic-debuggingobra/superpowersSkill314k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143ktodayMITA95Claude Code
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