markdown-url

am-will/codex-skills · updated Apr 8, 2026

$npx skills add https://github.com/am-will/codex-skills --skill markdown-url
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summary

Convert any website into clean, extractable Markdown by routing through markdown.new.

  • Automatically rewrites URLs to prefix them with https://markdown.new/ for cleaner text extraction from docs, blog posts, changelogs, and GitHub issues
  • Includes a rewrite rule that preserves query parameters, fragments, and schemes while maintaining the original URL structure
  • Designed for read-only content only; skips markdown.new for authenticated workflows, interactive dashboards, paywalls, and sit
skill.md

markdown.new URL Prefix

Whenever you need to visit a website URL, you must:

  1. rewrite it to go through https://markdown.new/, then
  2. visit the rewritten URL, and
  3. pull the Markdown content from that page for use in your answer/notes.

Rewrite Rule

  1. Normalize the destination into an absolute URL with a scheme (https:// preferred).
  2. Prefix it with https://markdown.new/ (do not drop the original scheme).

Examples

  • https://example.com -> https://markdown.new/https://example.com
  • https://example.com/docs?a=1#b -> https://markdown.new/https://example.com/docs?a=1#b
  • example.com -> https://markdown.new/https://example.com

Agent Workflow (Required)

When you would normally open a website to read it:

  1. Produce the rewritten markdown.new URL.
  2. Visit the rewritten URL first (not the original), but only when it is likely to work (see Policy below).
  3. Extract the page content from the Markdown view (the rendered Markdown and/or the raw Markdown).
  4. Use that extracted Markdown as the source for summaries, quotes, checklists, or copy/pasteable notes.

If the markdown.new view fails to load or breaks critical functionality, fall back to the original URL for browsing, but still prefer markdown.new for any content extraction if possible.

Policy: When To Use markdown.new (Required)

Do NOT route every site through markdown.new. Use it primarily for "read-only" pages where you want clean, extractable text:

  • Documentation pages
  • Blog posts / announcements / changelogs
  • GitHub issues/PR discussions (when you just need readable text)
  • Articles and guides

Skip markdown.new and go straight to the original URL when the destination is likely to be blocked or requires the original site behavior:

  • Login, OAuth, checkout, payment, or any authenticated workflow
  • Sites that gate content behind JS apps, CAPTCHAs, bot detection, or paywalls
  • File uploads, forms, editors, dashboards, interactive widgets
  • Anything where cookies/session state must be preserved

Block/Failure Signals (Treat As Blocked)

If you try markdown.new and see any of the below, stop retrying and fall back to the original URL:

  • HTTP 401/403/429, "Access denied", "Forbidden", "rate limited"
  • CAPTCHA / "verify you are human"
  • Empty/partial content that clearly does not match the page
  • Redirect loops or repeated navigation failures

Fallback Behavior

  1. Attempt markdown.new once when appropriate.
  2. On block/failure, immediately switch to the original URL for browsing.
  3. If you still need extractable text, try to extract from the original page (reader mode / copy text) and clearly note that markdown.new was blocked.

Notes / Exceptions

  • Keep this for reading/browsing. For API endpoints, OAuth flows, file uploads, or anything that depends on cookies/login state, use the original URL if the proxy breaks functionality.
  • Do not rewrite local paths (./README.md) or non-HTTP(S) schemes.

Optional CLI Helper

Convert a URL into its markdown.new-prefixed form:

node skills/markdown-url/scripts/markdown-url.js "https://example.com/docs"

Discussion

Product Hunt–style comments (not star reviews)
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general reviews

Ratings

4.534 reviews
  • Kwame Johnson· Dec 24, 2024

    Registry listing for markdown-url matched our evaluation — installs cleanly and behaves as described in the markdown.

  • Rahul Santra· Dec 12, 2024

    Keeps context tight: markdown-url is the kind of skill you can hand to a new teammate without a long onboarding doc.

  • Hassan Flores· Dec 12, 2024

    markdown-url is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.

  • Neel Rao· Dec 8, 2024

    Solid pick for teams standardizing on skills: markdown-url is focused, and the summary matches what you get after install.

  • Daniel Jain· Nov 27, 2024

    We added markdown-url from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.

  • Ama Choi· Nov 15, 2024

    Keeps context tight: markdown-url is the kind of skill you can hand to a new teammate without a long onboarding doc.

  • Pratham Ware· Nov 3, 2024

    Registry listing for markdown-url matched our evaluation — installs cleanly and behaves as described in the markdown.

  • Daniel Menon· Nov 3, 2024

    markdown-url reduced setup friction for our internal harness; good balance of opinion and flexibility.

  • Sakshi Patil· Oct 22, 2024

    markdown-url reduced setup friction for our internal harness; good balance of opinion and flexibility.

  • Neel Patel· Oct 22, 2024

    Registry listing for markdown-url matched our evaluation — installs cleanly and behaves as described in the markdown.

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