markdown SKILL.md skillA

markdown from aiskillstore/marketplace is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add aiskillstore/marketplace/markdown@git:20260113.222b7de

Pins git:20260113.222b7de in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
aiskillstore/marketplace
Path
skills/46ki75/markdown/SKILL.md
Versions recorded
1
Latest version
git:20260113.222b7de, committed Jan 13, 2026
Size
6,231 bytes
Repository stars
450
License
none declared

Markdown linting and automated fixing using markdownlint-cli2. Use when Claude needs to: (1) Check markdown files for style issues, (2) Fix markdown formatting problems, (3) Ensure markdown follows best practices, (4) Validate markdown documents, or (5) Apply consistent markdown styling.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Markdown Lint

Automated markdown validation and fixing using markdownlint-cli2.

## Workflow Overview

```text
1. Run auto-fix     → markdownlint-cli2 --fix <file>
2. Check remaining  → markdownlint-cli2 <file>
3. Fix manually     → str_replace for structural issues
4. Verify           → markdownlint-cli2 <file> (should show 0 errors)
```

**Expected results**: Auto-fix resolves 70-90% of issues. Remaining 3-5
issues require manual correction.

## Basic Commands

```bash
# Auto-fix single file
markdownlint-cli2 --fix document.md

# Check file
markdownlint-cli2 document.md

# Multiple files
markdownlint-cli2 --fix file1.md file2.md

# All markdown in directory
markdownlint-cli2 --fix "**/*.md"

# With custom config
markdownlint-cli2 --config .markdownlint.json document.md
```

## File Paths

```bash
# Uploaded files
markdownlint-cli2 --fix /mnt/user-data/uploads/document.md

# Working directory
markdownlint-cli2 --fix /home/claude/document.md

# Output to user
cp /path/to/fixed.md /mnt/user-data/outputs/
```

## Manual Fixes Required

Auto-fix cannot resolve these issues - they need Claude's judgment:

### MD025 - Multiple H1 Headers
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add aiskillstore/marketplace/markdown@sha256:ed1313191281a3eb

The line at the top of this page pins the label git:20260113.222b7de, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_xx6hszyfpqfzfvkh.svg)](https://markdownregistry.com/a/art_xx6hszyfpqfzfvkh)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Jan 13, 2026.

versioncommittedcommitsizeaudit
git:20260113.222b7de latest2026-01-13 222b7de 6,231 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (6231 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

aiskillstore/marketplace · 450 stars · license none declared · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_xx6hszyfpqfzfvkh
GET https://markdownregistry.com/api/v1/resolve?ref=aiskillstore/marketplace/markdown
GET https://markdownregistry.com/api/v1/blob/ed1313191281a3ebce7b2ea776bc188ecf670be9edb3d3f4f46f6876f1b5345c

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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Every file in aiskillstore/marketplace

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