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Markdown Canvas

核心功能:将Markdown文件转换为无外部依赖的美观HTML,支持自定义输出路径、页面标题,兼容标题、加粗、代码块等多种Markdown元素。典型场景:用户需可视化、分享Markdown文档时使用,如将笔记、报告转成网页用于Canvas展示或浏览器查看。输入为.md文件,通过Python脚本执行转换,输出独立.html文件,可直接打开或推送到Canvas节点。

jingyu525
jingyu525
热度 60.95
最近更新 2026-05-17 13:11:03
分类:效率依赖:代码执行 / 读写文件应用场景:文件转换

安装技能

复制下面的话术发给你的 Agent,它会通过 secure-skills 检索并安装该技能。

执行命令安装此 skill: npx secure-skills-cli add markdown-canvas
Metadata
name
markdown-canvas
description
Convert markdown files to beautiful HTML pages suitable for Canvas display or browser viewing. Use when user asks to render, visualize, display, or share markdown files (.md) in a visual format. Triggers include phrases like "render xxx.md", "canvas display xxx.md", "visualize markdown", "make xxx.md pretty", "share xxx.md as HTML".
homepage
https://github.com/jingyu525/markdown-canvas
metadata
{"openclaw":{"emoji":"📝","requires":{"bins":["python3"]}}}

Markdown Canvas Renderer

Convert markdown files into beautiful, shareable HTML pages with zero external dependencies.

Quick Start

When a user wants to render a markdown file:

  1. Run the conversion script:

    python3 scripts/convert.py <path/to/file.md>
    
  2. Open in browser (if no Canvas node available):

    open <output.html>
    
  3. Or push to Canvas (if node paired):

    canvas present file://<output.html>
    

Usage Examples

Basic conversion

# Converts ai-landscape-2026.md → ai-landscape-2026.html
python3 scripts/convert.py ai-landscape-2026.md

Custom output path

python3 scripts/convert.py input.md -o /path/to/output.html

Custom page title

python3 scripts/convert.py notes.md -t "My Research Notes"

Supported Markdown Features

The converter handles:

  • Headers (# through ######)
  • Bold (**text** or __text__)
  • Italic (*text* or _text_)
  • Code blocks (language ... )
  • Inline code (code)
  • Links ([text](url))
  • Lists (unordered: - , * , + )
  • Horizontal rules (---, ***, ___)

Design Philosophy

Token efficiency: Template is pre-built; only markdown content flows through the context window.

Zero dependencies: Pure Python + self-contained HTML template with embedded CSS.

Progressive enhancement: Works offline, no CDN required, renders instantly.

Workflow

  1. User requests markdown rendering
  2. Run scripts/convert.py on their file
  3. Script reads assets/template.html
  4. Script converts markdown → HTML
  5. Script injects HTML into template
  6. Output saved alongside source (or custom path)
  7. Open in browser OR push to Canvas

Token Cost Analysis

Per conversion:

  • Read SKILL.md: ~500 tokens (first time only)
  • Execute script: ~100 tokens
  • Report result: ~50 tokens

Total: ~650 tokens vs ~8000 tokens for generating full HTML each time.

Output Location

By default, output is saved next to the input file:

  • notes.md → notes.html
  • /path/to/doc.md → /path/to/doc.html

Use -o flag to specify custom location.