Code Quality
redis/RedisInsight
Code-quality standards for RedisInsight: TypeScript strictness, naming conventions (camelCase, PascalCase, UPPERSNAKECASE), linting rules, no any without reason, no !important in styles, and…
Run playground without visible UI using SDK methods directly.
$ npx skills add live-codes/livecodes --skill headless-mode -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install live-codes/livecodes headless-mode --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/live-codes/livecodes.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/livecodes/headless-mode .claude/skills/headless-mode && 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 "headless-mode" agent skill from https://github.com/live-codes/livecodes/tree/develop/.agents/skills/livecodes/headless-mode into .claude/skills/headless-mode/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "headless-mode", 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/live-codes/livecodes/tree/develop/.agents/skills/livecodes/headless-modeType 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 live-codes/livecodes --skill headless-mode -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install live-codes/livecodes headless-mode --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/live-codes/livecodes.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/livecodes/headless-mode .agents/skills/headless-mode && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "headless-mode" agent skill from https://github.com/live-codes/livecodes/tree/develop/.agents/skills/livecodes/headless-mode into .agents/skills/headless-mode/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "headless-mode", 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 live-codes/livecodes --skill headless-mode -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install live-codes/livecodes headless-mode --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/live-codes/livecodes.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/livecodes/headless-mode .cursor/skills/headless-mode && 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 "headless-mode" agent skill from https://github.com/live-codes/livecodes/tree/develop/.agents/skills/livecodes/headless-mode into .cursor/skills/headless-mode/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "headless-mode", 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/live-codes/livecodes.git --path .agents/skills/livecodes/headless-mode--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 live-codes/livecodes --skill headless-mode -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install live-codes/livecodes headless-mode --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/live-codes/livecodes.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/livecodes/headless-mode .gemini/skills/headless-mode && 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 "headless-mode" agent skill from https://github.com/live-codes/livecodes/tree/develop/.agents/skills/livecodes/headless-mode into .gemini/skills/headless-mode/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "headless-mode", 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 live-codes/livecodes headless-modeInstalls 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 live-codes/livecodes --skill headless-mode -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/live-codes/livecodes.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/livecodes/headless-mode .github/skills/headless-mode && 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 "headless-mode" agent skill from https://github.com/live-codes/livecodes/tree/develop/.agents/skills/livecodes/headless-mode into .github/skills/headless-mode/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "headless-mode", 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 live-codes/livecodes --skill headless-mode -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install live-codes/livecodes headless-mode --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/live-codes/livecodes.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/livecodes/headless-mode .opencode/skills/headless-mode && 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 "headless-mode" agent skill from https://github.com/live-codes/livecodes/tree/develop/.agents/skills/livecodes/headless-mode into .opencode/skills/headless-mode/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "headless-mode", 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.
headless-modeRun playground without visible UI using SDK methods directly.
Headless Mode is an agent skill from live-codes/livecodes. Run playground without visible UI using SDK methods directly. Load this skill when building Markdown compilers, code formatters, or tools that need compiled output without display.
Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Linting and formatting and Markdown. It works with Prettier, JavaScript and TypeScript. The repository describes itself as: A Code Playground That Just Works! The licence is MIT.
Read from SKILL.md and the folder at commit 5754e89. It shows what the files ask for, not the result of running them.
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.
No scripts in the folder and no shell commands in SKILL.md (its code samples are javascript).
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Headless Mode loads about 1.1k tokens when it runs. Until then it costs about 49 tokens; SKILL.md has 110 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.
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.
The full file from live-codes/livecodes at commit 5754e89, republished under its MIT licence (© live-codes). 110 words, ~1,107 tokens.
.claude/skills/headless-mode/SKILL.md (or your agent's skills folder).This skill builds on sdk-embedding and sdk-methods. Read them first for foundational concepts.
Headless mode runs LiveCodes without any visible UI. Use SDK methods to compile code, get output, and react to events.
import { createPlayground } from 'livecodes';
// Create headless playground - container is optional
const playground = await createPlayground({
headless: true,
config: {
markup: { language: 'markdown', content: '# Hello World' },
},
});
// Use SDK methods
const code = await playground.getCode();
console.log(code.markup.compiled); // "<h1>Hello World</h1>"
console.log(code.result); // Result page HTMLimport { createPlayground } from 'livecodes';
let playground;
async function compileMarkdown(markdown) {
if (!playground) {
playground = await createPlayground({
headless: true,
config: { autoupdate: false },
});
}
await playground.setConfig({
markup: { language: 'markdown', content: markdown },
});
const code = await playground.getCode();
return code.markup.compiled;
}
// Usage
const html = await compileMarkdown('# Hello\n\nWorld');
console.log(html); // "<h1>Hello</h1>\n<p>World</p>"import { createPlayground } from 'livecodes';
let playground;
async function compileJSX(jsxCode) {
if (!playground) {
playground = await createPlayground({
headless: true,
config: { autoupdate: false },
});
}
await playground.setConfig({
script: { language: 'react', content: jsxCode },
});
const code = await playground.getCode();
return code.script.compiled;
}
const compiled = await compileJSX(`
function App() {
return <h1>Hello</h1>;
}
`);import { createPlayground } from 'livecodes';
let playground;
async function runPython(code) {
if (!playground) {
playground = await createPlayground({
headless: true,
config: { autoupdate: true },
});
}
// Set up console listener before running
const outputs = [];
playground.watch('console', ({ method, args }) => {
outputs.push({ method, args });
});
await playground.setConfig({
script: { language: 'python', content: code },
});
// Python runs automatically with autoupdate: true
// Or: await playground.run();
return outputs;
}
// Usage
const outputs = await runPython('print("Hello from Python!")');
// [{ method: 'log', args: ['Hello from Python!'] }]async function getResultHTML(config) {
const playground = await createPlayground({
headless: true,
config: { ...config, autoupdate: false },
});
await playground.setConfig(config);
const code = await playground.getCode();
return code.result; // Result page HTML
}const playground = await createPlayground({
headless: true,
config: { autoupdate: false },
});
// Watch for compiled code changes
playground.watch('code', ({ code, config }) => {
console.log('Compiled:', code.script.compiled);
});
// Change config - watch callback fires
await playground.setConfig({
script: { language: 'typescript', content: 'const x: number = 1;' },
});| Aspect | Visible | Headless |
|---|---|---|
| Container | Required | Optional |
| UI | Shown | Hidden |
| Use case | User interaction | Programmatic compilation |
© live-codes, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Just SKILL.md in .agents/skills/livecodes/headless-mode of live-codes/livecodes.
Open the folder on GitHubat commit 5754e89
Headless Mode 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 |
|---|---|---|---|---|---|---|
| Headless Mode this skilllive-codes/livecodes | 1.5k | — | ~1.1k | Automated safety check: Pass | MIT | |
| Code Qualityredis/RedisInsight | 8.9k | — | ~1.2k | Automated safety check: Pass | Custom licence | |
| Migrate Oxfmtdxos/dxos | 525 | 3 repos | ~2.2k | Automated safety check: Pass | Custom licence | |
| Typescript Tooling MigrationArize-ai/phoenix | 12k | — | ~2.8k | Automated safety check: Pass | Apache-2.0 | |
| AntfuJetBrains/skills | 363 | 4 repos | ~1k | Automated safety check: Pass | None | |
| Flowmark Markdown Formatterjlevy/repren | 374 | — | ~631 | Automated safety check: Pass | MIT |
redis/RedisInsight
Code-quality standards for RedisInsight: TypeScript strictness, naming conventions (camelCase, PascalCase, UPPERSNAKECASE), linting rules, no any without reason, no !important in styles, and…
dxos/dxos
Guide for migrating a project from Prettier or Biome to Oxfmt.
Arize-ai/phoenix
Migrate or upgrade TypeScript tooling in the Phoenix monorepo.
JetBrains/skills
Anthony Fu's opinionated tooling and conventions for JavaScript/TypeScript projects.
jlevy/repren
Formats Markdown with the Flowmark auto-formatter for typographic cleanup and semantic line breaks, and helps adopt it across a repository.
dmmulroy/anti-slop
Installs, updates or migrates the vendored anti-slop Oxlint plugin in a repository, keeping local rule changes and the plugin's license and provenance files.
live-codes/livecodes
Work with 90+ supported languages, compilers, CSS processors, and WASM-compiled languages for markup, style, and script editors.
live-codes/livecodes
Configure playground behavior through Config object, query parameters, EmbedOptions, editor settings, processors, external resources, and custom settings.
live-codes/livecodes
Configure how the playground is displayed: full, focus, simple, lite, editor, codeblock, and result modes.
live-codes/livecodes
Use SDK with React, Vue, Svelte, Solid, Preact, and Web Components.
live-codes/livecodes
Quick start for standalone app at livecodes.io, embedding playgrounds with CDN or npm, and self-hosting basics.
live-codes/livecodes
Use the "Preview in LiveCodes" GitHub Action to generate preview playground links for pull request code changes.
Works with
Categories
Run playground without visible UI using SDK methods directly. Headless Mode is an agent skill from live-codes/livecodes. Run playground without visible UI using SDK methods directly.
Headless Mode fits situations like: tasks that involve Linting and formatting; tasks that involve Markdown.
Run `npx skills add live-codes/livecodes --skill headless-mode -a claude-code`. Or copy the skill folder (.agents/skills/livecodes/headless-mode in live-codes/livecodes) into .claude/skills/headless-mode in your project. Claude Code loads it when a task matches its description.
Run `npx skills add live-codes/livecodes --skill headless-mode -a codex`. Or copy the skill folder (.agents/skills/livecodes/headless-mode in live-codes/livecodes) into .agents/skills/headless-mode in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add live-codes/livecodes --skill headless-mode -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/headless-mode, .gemini/skills/headless-mode, .github/skills/headless-mode and .opencode/skills/headless-mode in your project.
SKILL.md names no scripts, command-line tools or credentials: Headless Mode is instructions for the agent only. Our summary lists: Python 3.
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.
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.
Headless Mode is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 1.1k tokens (SKILL.md is roughly 4.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Headless Mode: Code Quality (redis/RedisInsight, 8.9k stars), Migrate Oxfmt (dxos/dxos, 525 stars), Typescript Tooling Migration (Arize-ai/phoenix, 12k stars) and Antfu (JetBrains/skills, 363 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
live-codes (a GitHub organization) maintains it in live-codes/livecodes, which has 1,512 GitHub stars. The repository holds 15 skills in this directory. The repository was last updated on October 6, 2026.
Source: live-codes/livecodes on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.