web-to-markdown（Web TO Markdown 网页抓取）

web-to-markdown

Convert web pages to clean Markdown by driving a locally installed browser (via web2md).

Hard trigger gate (must enforce)

This skill MUST NOT be used unless the user explicitly wrote exactly a phrase like:

• use the skill web-to-markdown...
• use a skill web-to-markdown...

If the user did not explicitly request this skill by name, stop and ask them to re-issue the request including: use the skill web-to-markdown.

What this skill does

• Handles JS-rendered pages (Puppeteer → user Chrome).
• Works best with Chromium-family browsers (Chrome/Chromium/Brave/Edge) via puppeteer-core.
• Extracts main content (Readability).
• Converts to Markdown (Turndown) with cleaned links and optional YAML frontmatter.

Non-goals

• Do not use Playwright or other browser automation stacks; the mechanism is web2md.

Inputs you should collect (ask only if missing)

• url (or a list of URLs)
• Output preference:

- Print to stdout (--print), OR - Save to a file (--out./file.md), OR - Save to a directory (--out./some-dir/ to auto-name by page title)

• Optional rendering controls for tricky pages:

- --chrome-path <path> (if Chrome auto-detection fails) - --interactive (show Chrome and pause so the user can complete human checks/login, then press Enter) - --wait-until load|domcontentloaded|networkidle0|networkidle2 - --wait-for '<css selector>' - --wait-ms <milliseconds> - --headful (debug) - --no-sandbox (sometimes required in containers/CI) - --user-data-dir <dir> (login/session; use a dedicated profile directory)

Workflow

1. Confirm the user explicitly invoked the skill (use the skill web-to-markdown).
2. Validate URL(s) start with http:// or https://.
3. Ensure web2md is installed:

- Run: command -v web2md - If missing, instruct the user to install it: - If available via npm: npm install -g web2md - If from source: Clone the repository, then run npm install && npm run build && npm link

1. Convert:

- Single URL → file: - web2md '<url>' --out./page.md - Single URL → auto-named file in directory: - mkdir -p./out && web2md '<url>' --out./out/ - Human verification / login walls (interactive): - mkdir -p./out && web2md '<url>' --interactive --user-data-dir./tmp/web2md-profile --out./out/ - Then: complete the check in the browser window and press Enter in the terminal to continue. - Print to stdout: - web2md '<url>' --print - Multiple URLs (batch): - Create output dir (e.g. ./out/) then run one web2md command per URL using --out./out/

1. Validate output:

- If writing files, verify they exist and are non-empty (e.g. ls -la <path> and wc -c <path>).

1. Return:

- The saved file path(s), or the Markdown (stdout mode).

Defaults (recommended)

• For most pages: --wait-until networkidle2
• For heavy apps: start with --wait-until domcontentloaded --wait-ms 2000, then add --wait-for 'main' (or another stable selector) if needed.