baoyu-url-to-markdown
Fetch any URL and convert to markdown using baoyu-fetch CLI (Chrome CDP with site-specific adapters).
Skill by EthanYoQ
Chalk Labs
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Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/ethanyoq-baoyu-url-to-markdown
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About
Use cases: documents
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What's inside
- Skill 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.
- License
- MIT
- Instructions
- 161 lines in SKILL.md · view on GitHub
Before installing
- Ships executable scripts
- Instructions read files in your home folder (~/.ssh, ~/.aws…)
Files (48)
- SKILL.md
- adapters.md · references/
- first-time-setup.md · references/config/
- quality-gate.md · references/
- baoyu-fetch · scripts/
- bun.lock · scripts/
- index.ts · scripts/lib/adapters/generic/
- index.ts · scripts/lib/adapters/hn/
- index.ts · scripts/lib/adapters/
- types.ts · scripts/lib/adapters/
- article.ts · scripts/lib/adapters/x/
- index.ts · scripts/lib/adapters/x/
- login.ts · scripts/lib/adapters/x/
- match.ts · scripts/lib/adapters/x/
- payloads.ts · scripts/lib/adapters/x/
- session.ts · scripts/lib/adapters/x/
- shared.ts · scripts/lib/adapters/x/
- single.ts · scripts/lib/adapters/x/
- thread-loader.ts · scripts/lib/adapters/x/
- thread.ts · scripts/lib/adapters/x/
- types.ts · scripts/lib/adapters/x/
- index.ts · scripts/lib/adapters/youtube/
- transcript.ts · scripts/lib/adapters/youtube/
- utils.ts · scripts/lib/adapters/youtube/
- cdp-client.ts · scripts/lib/browser/
- chrome-launcher.ts · scripts/lib/browser/
- cookie-sidecar.ts · scripts/lib/browser/
- interaction-gates.ts · scripts/lib/browser/
- network-journal.ts · scripts/lib/browser/
- page-snapshot.ts · scripts/lib/browser/
- profile.ts · scripts/lib/browser/
- session.ts · scripts/lib/browser/
- cli.ts · scripts/lib/
- convert.ts · scripts/lib/commands/
- document.ts · scripts/lib/extract/
- html-cleaner.ts · scripts/lib/extract/
- html-extractor.ts · scripts/lib/extract/
- html-to-markdown.ts · scripts/lib/extract/
- markdown-renderer.ts · scripts/lib/extract/
- default-downloader.ts · scripts/lib/media/
- markdown-media.ts · scripts/lib/media/
- media-utils.ts · scripts/lib/media/
- types.ts · scripts/lib/media/
- defuddle-node.d.ts · scripts/lib/types/
- shims.d.ts · scripts/lib/types/
- logger.ts · scripts/lib/utils/
- url.ts · scripts/lib/utils/
- package.json · scripts/
SKILL.md (first lines)
# 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.
### First-Time Setup ⛔ BLOCKING
When EXTEND.md is not found, you **MUST** use `AskUserQuestion` to gather preferences before creating EXTEND.md. **NEVER** create EXTEND.md with silent defaults. Generation is BLOCKED until setup completes. Batch all three questions into a single call:
- **Q1 — Media** (header "Media"): "How to handle images and videos in pages?"
- "Ask each time (Recommended)" — Prompt after each save
- "Always download" — Download to local `imgs/` and `videos/`
- "Never download" — Keep remote URLs
- **Q2 — Output** (header "Output"): "Default output directory?"
- "url-to-markdown (Recommended)" — Save to `./url-to-markdown/{domain}/{slug}.md`
- User may pick "Other" and type a custom path
- **Q3 — Save** (header "Save"): "Where to save preferences?"
- "User (Recommended)" — `~/.baoyu-skills/` (all projects)
- "Project" — `.baoyu-skills/` (this project only)
After answers, write EXTEND.md, confirm "Preferences saved to [path]", then continue.
Full template: [references/config/first-time-setup.md](references/config/first-time-setup.md).
### Supported Keys
| Key | Default | Values | Description |
|-----|---------|--------|-------------|
| `download_media` | `ask` | `ask` / `1` / `0` | `ask` = prompt each time, `1` = always, `0` = never |
| `default_output_dir` | empty | path or empty | Default output directory (empty = `./url-to-markdown/`) |
**EXTEND.md → CLI mapping**:
| EXTEND.md key | CLI argument | Notes |
|---------------|-------------|-------|
| `download_media: 1` | `--download-media` | Requires `--output` to be set |
| `default_output_dir: ./posts/` | Agent constructs `--output ./posts/{domain}/{slug}.md` | Agent generates path, not a direct flag |
**Value priority**: CLI arguments → EXTEND.md → skill defaults.
## Usage
```bash
# 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
```
## Options
| Option | Description |
|--------|-------------|
| `<url>` | URL to fetch |
| `--output <path>` | Output file path (default: stdout) |
| `--format <type>` | Output format: `markdown` (default) or `json` |
| `--json` | Shorthand for `--format json` |
| `--adapter <name>` | Force adapter: `x`, `youtube`, `hn`, or `generic` (default: auto-detect) |
| `--headless` | Force headless Chrome (no visible window) |
| `--wait-for <mode>` | Interaction wait mode: `none` (default), `interaction`, or `force` |
| `--wait-for-interaction` | Alias for `--wait-for interaction` |
| `--wait-for-login` | Alias for `--wait-for interaction` |
| `--timeout <ms>` | Page load timeout (default: 30000) |
| `--interaction-timeout <ms>` | Login/CAPTCHA wait timeout (default: 600000 = 10 min) |
| `--interaction-poll-interval <ms>` | Poll interval for interaction checks (default: 1500) |
| `--download-media` | Download images/videos to local `imgs/` and `videos/`, rewrite markdown links. Requires `--output` |From EthanYoQ/Skill-hub, MIT.
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Signals
- Stars
- 11
- Forks
- 4
- Open issues
- 0
- Last commit (this folder)
- Sep 19, 2026 (1 month ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- MIT
- Repository
- github.com/EthanYoQ/Skill-hub
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
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baoyu-url-to-markdown skill. Agent Mart. https://agentmart.dev/skills/ethanyoq-baoyu-url-to-markdown (last updated 2026-10-24)