baoyu-url-to-markdown

baoyu-url-to-markdown is a skill for Claude Code from JimLiu/baoyu-skills. It costs 72 tokens per session (2,160 once invoked), scanned A, original, MIT.

A tool that fetches a web page or supported online service and saves the result as clean Markdown, a plain-text format commonly used for documentation and notes.

In plain words
What is it for?
Use it to save web pages, X posts, YouTube transcripts, Hacker News discussions, or other supported URLs as Markdown files.
Why use it?
It removes page layout and other clutter, making online content easier to read, edit, and reuse. It can also wait for login or CAPTCHA interaction when a page requires it.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: names the AskUserQuestion tool; built for openclaw.

Part of the baoyu-skills plugin — 21 skills shipped together

not rated 26krepo +163 2d ago A scan Socket: passSnyk: warnSkillSpector: warn 72 tokens original MIT

Good fit Use it to save web pages, X posts, YouTube transcripts, Hacker News discussions, or other supported URLs as Markdown files.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jimliu/baoyu-skills/baoyu-url-to-markdown
About the project

baoyu-skills is a collection of reusable skills that give AI coding agents instructions for tasks such as preparing and publishing content. It supports agents including Claude Code, Codex, and OpenClaw, with users installing only the workflows they need. The catalogue contains selected skills from this collection.

JimLiu/baoyu-skills · 25,839 stars · on GitHub

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add JimLiu/baoyu-skills --skill baoyu-url-to-markdown
Clone the repo
git clone --depth 1 https://github.com/JimLiu/baoyu-skills

Made for: Claude Code.

Or install baoyu-skills, the plugin that ships this one along with the rest of its 21 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for baoyu-url-to-markdown

README.md
[![agentmods](https://agentmods.dev/badge/skills/jimliu/baoyu-skills/baoyu-url-to-markdown/github.svg)](https://agentmods.dev/skills/jimliu/baoyu-skills/baoyu-url-to-markdown)
Your own site
<a href="https://agentmods.dev/skills/jimliu/baoyu-skills/baoyu-url-to-markdown"><img src="https://agentmods.dev/badge/skills/jimliu/baoyu-skills/baoyu-url-to-markdown/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for baoyu-url-to-markdown

Your own site · 80×15
<a href="https://agentmods.dev/skills/jimliu/baoyu-skills/baoyu-url-to-markdown"><img src="https://agentmods.dev/badge/skills/jimliu/baoyu-skills/baoyu-url-to-markdown.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,160 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket pass 22 Apr 2026
  • Snyk warn 22 Apr 2026
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Rogue Agent · line 57
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00072 $0.02160
Opus 5 $0.00036 $0.01080
Sonnet 5 $0.00014 $0.00432
Haiku 4.5 $0.00007 $0.00216

Measured 13d ago against content hash 40913749b0e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

baoyu-url-to-markdown scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 13d ago.

The scan reads SKILL.md. This mod also ships 41 executable files (scripts/lib/adapters/generic/index.ts, scripts/lib/adapters/hn/index.ts, scripts/lib/adapters/index.ts, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

4 near-identical copies found in the catalogue:

skills/baoyu-url-to-markdown/SKILL.md · 172 lines

How it starts

The opening of the file, as written. The whole thing — 172 lines — stays where its author put it; the contents beside it link to each section on GitHub.

URL to Markdown

Fetches any URL via baoyu-fetch CLI (Chrome CDP + site-specific adapters) and converts it to clean markdown.

User Input Tools

When this skill prompts the user, follow this tool-selection rule (priority order):

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

Concrete AskUserQuestion references below are examples — substitute the local equivalent in other runtimes.

CLI Setup

Important: The CLI source is vendored in {baseDir}/scripts/lib. scripts/package.json installs only third-party runtime dependencies.

Agent Execution Instructions:

  1. Determine this SKILL.md file's directory path as {baseDir}
  2. Resolve ${BUN} runtime: if bun installed → bun; else suggest installing Bun
  3. If {baseDir}/scripts/node_modules does not exist, run ${BUN} install --cwd {baseDir}/scripts
  4. ${READER} = {baseDir}/scripts/baoyu-fetch
  5. Replace all ${READER} in this document with the resolved value

Preferences (EXTEND.md)

Check EXTEND.md in priority order — the first one found wins:

Priority Path Scope
1 .baoyu-skills/baoyu-url-to-markdown/EXTEND.md Project
2 ${XDG_CONFIG_HOME:-$HOME/.config}/baoyu-skills/baoyu-url-to-markdown/EXTEND.md XDG
3 $HOME/.baoyu-skills/baoyu-url-to-markdown/EXTEND.md User home
Result Action
Found Read, parse, apply settings
Not found MUST run first-time setup (see below) — do NOT silently create defaults

EXTEND.md supports: download media by default, default output directory.

Read the full file on GitHub · 172 lines

Files

What ships with it

47 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 13d ago First seen · 172 lines · 72 tokens per session scan A 40913749b0e9

Subscribe to this mod's changes

baoyu-url-to-markdown is a skill published in the GitHub repository JimLiu/baoyu-skills (25,839 stars, last pushed 2d ago), licensed MIT. It adds 72 tokens to every session and 2,160 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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