Files
pierpaolo.mammi e8288f73bd add skill for markdown
also move some files around
2026-07-16 15:27:53 +02:00

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markdown-linting Markdown formatting standards following markdownlint practices
markdown

Markdown Linting Skill

This skill documents markdown formatting standards for this project, following markdownlint practices.

Core Rules

Headings

  • Use # for headings (not underlines with === or ---)
  • Headings must have space after #: # Heading ✓, #Heading
  • Heading levels must increment by 1: # > ## > ### (don't skip levels)
  • File must start with a level 1 heading (H1)
  • Use sentence case for headings (capitalize only first word unless proper noun)

Line Endings & Spacing

  • Trim trailing whitespace at end of lines
  • No more than one blank line between elements
  • Use consistent list marker spacing: 1 space after marker
  • Between major sections: exactly 1 blank line

Lists

  • Use - for unordered lists (not * or +)
  • Lists must be indented consistently (2 spaces or 4 spaces)
  • Ordered lists use 1. 2. 3. (always 1. for first item)
  • List items with multiple paragraphs: indent continuation 4 spaces
  • Blank line before and after lists (if between other content)

Code

  • Inline code with backticks: `code`
  • Code blocks use triple backticks with language: ```php, ```bash, ```json
  • Blank line before code block
  • Blank line after code block
  • Use fenced code blocks (```), not indentation
  • Use reference-style or inline links: [text](url)
  • Image syntax: ![alt text](path/to/image.png)
  • URLs must be valid and properly formatted
  • Don't use bare URLs (wrap in <> or use markdown link syntax)

Emphasis

  • Use **bold** for bold (not __bold__)
  • Use *italic* for italic (not _italic_)
  • Underscores on word boundaries only

Line Length

  • Keep lines under 120 characters where practical
  • Long URLs and code blocks are exceptions
  • Wrap long text at sentence boundaries

Blockquotes

  • Use > for blockquotes with space after: > quote
  • Blank line after blockquote if followed by text

Template Structure

Documentation Files

# Main Title

Brief introduction (1-2 sentences).

## Section One

Content here.

### Subsection

Details.

## Section Two

More content.

## See Also

- [Link text](url)

API Documentation

# API Endpoint Name

Brief description.

## Overview

What this does.

## Prerequisites

- Prerequisite 1
- Prerequisite 2

## Usage

### Request

```bash
curl command

Response

json example

Configuration

  • Option 1: description
  • Option 2: description

Troubleshooting

Problem

Solution.

See Also


### Guides & Tutorials

```markdown
# Tutorial Title

Brief intro.

## Prerequisites

- Item 1

## Step 1: Title

Description and code.

## Step 2: Title

Description and code.

## Verification

How to test.

## Troubleshooting

Issues and fixes.

Quick Checklist

  • File starts with # Title (H1)
  • Headings have space after #
  • No heading level jumps
  • No trailing whitespace
  • Max 1 blank line between sections
  • Lists use - consistently
  • Code blocks have language specified
  • Inline code uses backticks
  • Links are properly formatted
  • No bare URLs
  • Lines under 120 chars where practical
  • Bold uses **text**, italic uses *text*
  • All section transitions are clear

Common Violations to Avoid

#No space after hash
# Space after hash

# Heading\n\n\n## Next (two blank lines)
# Heading\n\n## Next (one blank line)

* or + for lists
- for all lists

Bare URL http://example.com
✓ Wrapped URL <http://example.com>
✓ Link [text](http://example.com)

Indented code blocks
✓ Fenced code blocks ```

# Skip to ### level
# Then ## Then ###

emphasis with underscores
emphasis with asterisks

References