CoverPress

A CLI toolkit for AI agents to generate platform cover images from local HTML presets.

中文说明请见：README.zh-CN.md

Features

• Preset-only cover generation (no custom dimensions)
• Local HTML only (remote URLs are not supported)
• 8 built-in presets for social and content covers
• Deterministic rendering with Playwright + Chromium
• #container-based screenshot capture for predictable framing

Installation

npm install -g @liustack/coverpress
npx playwright install chromium

Or run with npx:

npx @liustack/coverpress [options]

Or install as an Agent Skill — tell any AI coding tool that supports agent skills (Claude Code, Codex, OpenCode, Cursor, Antigravity, etc.):

Install the skill from https://github.com/liustack/coverpress

Or use the skills CLI directly:

npx skills add https://github.com/liustack/coverpress --skill coverpress

Usage

# OG card
coverpress -i card.html -o og.png --preset og

# Infographic
coverpress -i stats.html -o infographic.png --preset infographic

Presets

Preset	Size	Example
og	1200x630
twitter	1200x675
banner	1600x900
youtube	1280x720
wechat	900x383
infographic	1080x1350
poster	1200x1500
xiaohongshu	1080x1440

More Examples

Cinema Theme

Fashion Theme

Other Styles

Options

• -i, --input <path> input HTML file path
• -o, --output <path> output PNG file path
• -p, --preset <name> preset name (required)
• --scale <number> device scale factor (default: 2)
• --wait-until <state> load | domcontentloaded | networkidle
• --timeout <ms> timeout in milliseconds
• --safe disable external network requests and JavaScript execution

PNG rendering requires a #container element in HTML. Rendering fails if missing.

AI Agent Skill

• coverpress/SKILL.md

License

MIT