URL to Markdown Fetcher

What it does

When your agent uses it

• Saving a web article as a markdown file
• Capturing a YouTube transcript or a Hacker News discussion as notes
• Archiving an X post or article thread in markdown

Example prompts

• “Save this article as markdown and download its images into my notes folder.”
• “Get the transcript of this YouTube video as a markdown file.”
• “Convert the Hacker News thread I just pasted into a markdown file.”

Requirements

• Bun
• Chrome
• Network access to the pages you want to fetch

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

1. 1Prefer built-in user-input tools exposed by the current agent runtime — e.g., AskUserQuestion, request_user_input, clarify, ask_user, or…
2. 2Fallback: if no such tool exists, emit a numbered plain-text message and ask the user to reply with the chosen number/answer for each…
3. 3Batching: if the tool supports multiple questions per call, combine all applicable questions into a single call; if only single-question…

What it can do on your machine

Read from SKILL.md and the folder at commit 1567581. It shows what the files ask for, not the result of running them.

• Tool permissions

  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.

• Runs code

  Ships 9 files in scripts/ (TypeScript, from the files we listed), which the agent can run.

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

URL to Markdown Fetcher loads about 2.1k tokens when it runs, and up to ~4.2k if it reads all its reference files. Until then it costs about 83 tokens; SKILL.md has 814 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~83

When it runs · the whole SKILL.md, loaded when a task matches

~2.1k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~4.2k

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.

Safety

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); the scripts in this folder are not scanned.

SKILL.md

The full file from JimLiu/baoyu-skills at commit 1567581, republished under its MIT licence (© JimLiu). 814 words, ~2,117 tokens.

name

baoyu-url-to-markdown

description

Fetch any URL and convert to markdown using baoyu-fetch CLI (Chrome CDP with site-specific adapters). Built-in adapters for X/Twitter, YouTube transcripts, Hacker News threads, and generic pages via Defuddle. Handles login/CAPTCHA via interaction wait modes. Use when user wants to save a webpage as markdown.

version

1.61.0

# Default: headless capture, markdown to stdout
${READER} <url>

# Save to file
${READER} <url> --output article.md

# Save with media download
${READER} <url> --output article.md --download-media

# Wait for interaction (login/CAPTCHA) — auto-detect and continue
${READER} <url> --wait-for interaction --output article.md

# Wait for interaction — manual control (Enter to continue)
${READER} <url> --wait-for force --output article.md

# JSON output
${READER} <url> --format json --output article.json

# Force specific adapter
${READER} <url> --adapter youtube --output transcript.md

© JimLiu, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 54 other files (scripts, references) in skills/baoyu-url-to-markdown of JimLiu/baoyu-skills.

• SKILL.md
• references/adapters.md
• references/config/first-time-setup.md
• references/quality-gate.md
• scripts/baoyu-fetch
• scripts/bun.lock
• scripts/lib/adapters/generic/index.ts
• scripts/lib/adapters/hn/index.ts
• scripts/lib/adapters/index.ts
• scripts/lib/adapters/types.ts
• scripts/lib/adapters/x/article.ts
• scripts/lib/adapters/x/index.ts
• scripts/lib/adapters/x/login.ts
• … and 42 more

Open the folder on GitHubat commit 1567581

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in JimLiu/baoyu-skills, which our catalogue first saw on October 7, 2026.

• guanyang/open-agent-hubskills/baoyu-url-to-markdown