Markdown Article Formatter
JimLiu/baoyu-skills
Reformats plain text or Markdown articles with frontmatter, a title, a summary, headings, bold, lists and code blocks, and saves a separate formatted copy.
Build or debug Jewel Markdown parsing, rendering, and styling.
Install Jewel Markdown
$ npx skills add JetBrains/intellij-community --skill jewel-markdown -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install JetBrains/intellij-community jewel-markdown --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/jewel-markdown .claude/skills/jewel-markdown && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "jewel-markdown" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/jewel-markdown into .claude/skills/jewel-markdown/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "jewel-markdown", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/jewel-markdownType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add JetBrains/intellij-community --skill jewel-markdown -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install JetBrains/intellij-community jewel-markdown --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/jewel-markdown .agents/skills/jewel-markdown && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "jewel-markdown" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/jewel-markdown into .agents/skills/jewel-markdown/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "jewel-markdown", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add JetBrains/intellij-community --skill jewel-markdown -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install JetBrains/intellij-community jewel-markdown --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/jewel-markdown .cursor/skills/jewel-markdown && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "jewel-markdown" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/jewel-markdown into .cursor/skills/jewel-markdown/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "jewel-markdown", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/JetBrains/intellij-community.git --path .agents/skills/jewel-markdown--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add JetBrains/intellij-community --skill jewel-markdown -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install JetBrains/intellij-community jewel-markdown --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/jewel-markdown .gemini/skills/jewel-markdown && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "jewel-markdown" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/jewel-markdown into .gemini/skills/jewel-markdown/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "jewel-markdown", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install JetBrains/intellij-community jewel-markdownInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add JetBrains/intellij-community --skill jewel-markdown -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/jewel-markdown .github/skills/jewel-markdown && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "jewel-markdown" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/jewel-markdown into .github/skills/jewel-markdown/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "jewel-markdown", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add JetBrains/intellij-community --skill jewel-markdown -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install JetBrains/intellij-community jewel-markdown --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/jewel-markdown .opencode/skills/jewel-markdown && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "jewel-markdown" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/jewel-markdown into .opencode/skills/jewel-markdown/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "jewel-markdown", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
jewel-markdown- GitHub stars
- 21k
- Token cost
- ~4.3k tokens
- SKILL.md length
- 2,145 words
- Files
- 7 (incl. references)
- Skills in repo
- 39
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Build or debug Jewel Markdown parsing, rendering, and styling.
- Works in 7 steps: Visual styling only — customize… → Existing block UI behavior — use a… → Existing inline text behavior — use a… → …
- Tasks that involve Markdown
- SKILL.md covers First decision: what are you…, High-level rendering flow, Built-in and existing… and Embedded HTML, plus 8 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Jewel Markdown is an agent skill from JetBrains/intellij-community, published by the product's own GitHub organization. Build or debug Jewel Markdown parsing, rendering, and styling.
Its SKILL.md is about 4.3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 8 other files, including reference files (for example `evals/evals.json`, `references/CODE-HIGHLIGHTING.md` and `references/HTML-PARSING.md`).
It sits in Documents & Office, covering Markdown. It works with JetBrains IDEs. The repository describes itself as: IntelliJ IDEA & IntelliJ Platform.
When your agent uses it
- Tasks that involve Markdown
Example prompts
- “/jewel-markdown”
Workflow steps
7 steps, taken from the first numbered list in SKILL.md.
- Visual styling only — customize MarkdownStyling and theme-specific styling helpers.
- Existing block UI behavior — use a custom MarkdownBlockRenderer, usually by subclassing DefaultMarkdownBlockRenderer and overriding
- Existing inline text behavior — use a custom InlineMarkdownRenderer, usually by subclassing DefaultInlineMarkdownRenderer.
- New Markdown syntax — write a processor extension and a renderer extension.
- Images — use an ImageRendererExtension, not a general block renderer.
- Embedded HTML — enable parseEmbeddedHtml on the MarkdownProcessor, and for custom HTML→Markdown mapping add a
- A live editor preview — use MarkdownMode.EditorPreview with a dedicated MarkdownProcessor instance and render with LazyMarkdown.
What it can do on your machine
Read from SKILL.md and the folder at commit 27dbc78. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Jewel Markdown loads about 4.3k tokens when it runs, and up to ~10k if it reads all its reference files. Until then it costs about 19 tokens; SKILL.md has 2,145 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 2,145 words (~4,314 tokens).
“Jewel Markdown is a two-stage renderer: parse raw Markdown into Jewel's MarkdownBlock / InlineMarkdown model, then render that model with Jewel Compose renderers. Choose the smallest customization point that matches the job.”
- name
- jewel-markdown
Files
SKILL.md and 6 other files (references) in .agents/skills/jewel-markdown of JetBrains/intellij-community.
- SKILL.md
- evals/evals.json
- references/CODE-HIGHLIGHTING.md
- references/HTML-PARSING.md
- references/IMAGE-LOADING.md
- references/SCROLL-SYNC.md
- skill-source.json
Open the folder on GitHubat commit 27dbc78
Compare with similar skills
Jewel Markdown next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Jewel Markdown this skillJetBrains/intellij-community | 21k | — | ~4.3k | Automated safety check: Pass | Custom licence | |
| Markdown Article FormatterJimLiu/baoyu-skills | 27k | 6 repos | ~3.5k | Automated safety check: Pass | MIT | |
| MarkitdownImCa0/just-laws | 781 | 14 repos | ~3.2k | Automated safety check: Notes | MIT | |
| Obsidian MarkdownAtmosphere/atmosphere | 3.8k | 20 repos | ~1.3k | Automated safety check: Pass | Apache-2.0 | |
| Crosspostingwasp-lang/wasp | 19k | — | ~1.1k | Automated safety check: Pass | MIT | |
| Gzh Designisjiamu/gzh-design-skill | 4k | — | ~2.2k | Automated safety check: Pass | AGPL-3.0 |
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微信公众号文章排版引擎，将 Markdown 转换为可直接粘贴到公众号编辑器的 HTML。主题风格从 references/theme-index.md 注册的自定义主题库中选取，自动章节编号、关键词下划线标记、引言卡片、目录导航、代码块、图片/GIF、作者签名。支持 Markdown / Word(.docx) / PDF / 纯文本输入（非 Markdown…
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Categories
Questions about Jewel Markdown
What does Jewel Markdown do?
Build or debug Jewel Markdown parsing, rendering, and styling. Jewel Markdown is an agent skill from JetBrains/intellij-community, published by the product's own GitHub organization. Build or debug Jewel Markdown parsing, rendering, and styling.
When should I use Jewel Markdown?
Jewel Markdown fits situations like: tasks that involve Markdown.
How do I install Jewel Markdown in Claude Code?
Run `npx skills add JetBrains/intellij-community --skill jewel-markdown -a claude-code`. Or copy the skill folder (.agents/skills/jewel-markdown in JetBrains/intellij-community) into .claude/skills/jewel-markdown in your project. Claude Code loads it when a task matches its description.
How do I install Jewel Markdown in Codex?
Run `npx skills add JetBrains/intellij-community --skill jewel-markdown -a codex`. Or copy the skill folder (.agents/skills/jewel-markdown in JetBrains/intellij-community) into .agents/skills/jewel-markdown in your project. Codex loads it when a task matches its description.
Can I use Jewel Markdown in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add JetBrains/intellij-community --skill jewel-markdown -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/jewel-markdown, .gemini/skills/jewel-markdown, .github/skills/jewel-markdown and .opencode/skills/jewel-markdown in your project.
What does Jewel Markdown need to run?
SKILL.md names no scripts, command-line tools or credentials: Jewel Markdown is instructions for the agent only.
Does Jewel Markdown access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Jewel Markdown safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Jewel Markdown use?
Jewel Markdown has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Jewel Markdown use?
About 4.3k tokens (SKILL.md is roughly 17k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 6k tokens, read only when the agent opens those files.
What are the alternatives to Jewel Markdown?
Skills that share tags, products or a category with Jewel Markdown: Markdown Article Formatter (JimLiu/baoyu-skills, 27k stars), Markitdown (ImCa0/just-laws, 781 stars), Obsidian Markdown (Atmosphere/atmosphere, 3.8k stars) and Crossposting (wasp-lang/wasp, 19k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Jewel Markdown?
JetBrains (a GitHub organization, an official publisher) maintains it in JetBrains/intellij-community, which has 20,623 GitHub stars. The repository holds 39 skills in this directory. The repository was last updated on October 11, 2026.
Source: JetBrains/intellij-community on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.