Canghe Format Markdown

Formats markdown files by adding proper frontmatter, fixing heading hierarchies, and running typography cleanup scripts. The workflow detects whether you're working with plain text or existing markdown, then either applies full formatting (titles, bold, lists, code blocks) or just runs the typography fixes. The script itself handles CJK-specific issues like emphasis punctuation and English/Chinese spacing using remark-cjk-friendly and autocorrect. You get project-level and user-level config via EXTEND.md files. Outputs to a separate formatted file with timestamp backups, so your original stays untouched. Built for content that mixes languages or just needs consistent structure without manual cleanup.

skills.sh installs: 505
GitHub stars: 474
last updated: Aug 21, 2026

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Install

$ npx -y skills add freestylefly/canghe-skills --skill canghe-format-markdown --agent claude-code

Installs into .claude/skills of the current project.

Files

Markdown Formatter

Transforms plain text or markdown files into well-structured markdown with proper frontmatter, formatting, and typography.

Script Directory

Scripts in scripts/ subdirectory. Replace ${SKILL_DIR} with this SKILL.md's directory path.

Script	Purpose
`scripts/main.ts`	Main entry point with CLI options (uses remark-cjk-friendly for CJK emphasis)
`scripts/quotes.ts`	Replace ASCII quotes with fullwidth quotes
`scripts/autocorrect.ts`	Add CJK/English spacing via autocorrect

Preferences (EXTEND.md)

Use Bash to check EXTEND.md existence (priority order):

# Check project-level first
test -f .canghe-skills/canghe-format-markdown/EXTEND.md && echo "project"

# Then user-level (cross-platform: $HOME works on macOS/Linux/WSL)
test -f "$HOME/.canghe-skills/canghe-format-markdown/EXTEND.md" && echo "user"

SKILL.md on GitHub