What is baoyu-url-to-markdown?

A webpage fetcher that converts a URL into clean Markdown, including articles, X posts, YouTube transcripts, Hacker News discussions, and other pages.

Use it to save online articles, social posts, video transcripts, or discussion threads as Markdown files.

It removes the manual work of copying webpage content and cleaning away surrounding page elements.

baoyu-url-to-markdown — Skill for Claude Code and Codex by nevergoodst

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo

git clone --depth 1 https://github.com/nevergoodstudy-hub/wechat-article-summarizer

agentmods

npx agentmods add skills/nevergoodstudy-hub/wechat-article-summarizer/baoyu-url-to-markdown

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/nevergoodstudy-hub/wechat-article-summarizer/baoyu-url-to-markdown/github.svg)](https://agentmods.dev/skills/nevergoodstudy-hub/wechat-article-summarizer/baoyu-url-to-markdown)

Your own site

<a href="https://agentmods.dev/skills/nevergoodstudy-hub/wechat-article-summarizer/baoyu-url-to-markdown"><img src="https://agentmods.dev/badge/skills/nevergoodstudy-hub/wechat-article-summarizer/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/nevergoodstudy-hub/wechat-article-summarizer/baoyu-url-to-markdown"><img src="https://agentmods.dev/badge/skills/nevergoodstudy-hub/wechat-article-summarizer/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 3,827 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00072	$0.03827
Opus 5	$0.00036	$0.01913
Sonnet 5	$0.00014	$0.00765
Haiku 4.5	$0.00007	$0.00383

Measured 9d ago against content hash 233c869291d7, 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 9d ago.

The scan reads SKILL.md. This mod also ships 39 executable files (scripts/vendor/baoyu-fetch/src/adapters/generic/index.ts, scripts/vendor/baoyu-fetch/src/adapters/hn/index.ts, scripts/vendor/baoyu-fetch/src/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.

.warp/skills/baoyu-url-to-markdown/SKILL.md · 325 lines

How it starts

The opening of the file, as written. The whole thing — 325 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.

CLI Setup

Important: The CLI source is vendored in the scripts/vendor/baoyu-fetch/ subdirectory of this skill.

Agent Execution Instructions:

Determine this SKILL.md file's directory path as {baseDir}
CLI entry point = {baseDir}/scripts/vendor/baoyu-fetch/src/cli.ts
Resolve ${BUN_X} runtime: if bun installed → bun; if npx available → npx -y bun; else suggest installing bun
${READER} = ${BUN_X} {baseDir}/scripts/vendor/baoyu-fetch/src/cli.ts
Replace all ${READER} in this document with the resolved value

Preferences (EXTEND.md)

Check EXTEND.md existence (priority order):

# macOS, Linux, WSL, Git Bash
test -f .baoyu-skills/baoyu-url-to-markdown/EXTEND.md && echo "project"
test -f "${XDG_CONFIG_HOME:-$HOME/.config}/baoyu-skills/baoyu-url-to-markdown/EXTEND.md" && echo "xdg"
test -f "$HOME/.baoyu-skills/baoyu-url-to-markdown/EXTEND.md" && echo "user"

# PowerShell (Windows)
if (Test-Path .baoyu-skills/baoyu-url-to-markdown/EXTEND.md) { "project" }
$xdg = if ($env:XDG_CONFIG_HOME) { $env:XDG_CONFIG_HOME } else { "$HOME/.config" }
if (Test-Path "$xdg/baoyu-skills/baoyu-url-to-markdown/EXTEND.md") { "xdg" }
if (Test-Path "$HOME/.baoyu-skills/baoyu-url-to-markdown/EXTEND.md") { "user" }

Path	Location
`.baoyu-skills/baoyu-url-to-markdown/EXTEND.md`	Project directory
`$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

First-Time Setup (BLOCKING)

CRITICAL: When EXTEND.md is not found, you MUST use AskUserQuestion to ask the user for their preferences before creating EXTEND.md. NEVER create EXTEND.md with defaults without asking. This is a BLOCKING operation — do NOT proceed with any conversion until setup is complete.

Read the full file on GitHub · 325 lines

Files

What ships with it

45 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.

9d ago First seen · 325 lines · 72 tokens per session scan A 233c869291d7

Subscribe to this mod's changes

baoyu-url-to-markdown is a skill published in the GitHub repository nevergoodstudy-hub/wechat-article-summarizer (5 stars, last pushed 2mo ago), licensed MIT. It adds 72 tokens to every session and 3,827 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 2026-09-03.

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baoyu-url-to-markdown

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

How it starts

URL to Markdown

CLI Setup

Preferences (EXTEND.md)

First-Time Setup (BLOCKING)

What ships with it

What this file has done since we first saw it

Other skills, from other repositories

defuddle

defuddle

memory-bridge

knowledge-base-management

browser-harness-authoring

reddit-browse-and-post