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.
npx skills add guanyang/open-agent-hub --skill baoyu-url-to-markdowngit clone --depth 1 https://github.com/guanyang/open-agent-hubWrote 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.
[](https://agentmods.dev/skills/guanyang/open-agent-hub/baoyu-url-to-markdown)<a href="https://agentmods.dev/skills/guanyang/open-agent-hub/baoyu-url-to-markdown"><img src="https://agentmods.dev/badge/skills/guanyang/open-agent-hub/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.
<a href="https://agentmods.dev/skills/guanyang/open-agent-hub/baoyu-url-to-markdown"><img src="https://agentmods.dev/badge/skills/guanyang/open-agent-hub/baoyu-url-to-markdown.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.02160 |
| Opus 5 | $0.00036 | $0.01080 |
| Sonnet 5 | $0.00014 | $0.00432 |
| Haiku 4.5 | $0.00007 | $0.00216 |
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 12d ago.
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.
This is a copy
100% identical to baoyu-url-to-markdown — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
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):
- Prefer built-in user-input tools exposed by the current agent runtime — e.g.,
AskUserQuestion,request_user_input,clarify,ask_user, or any equivalent. - 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.
- 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:
- Determine this SKILL.md file's directory path as
{baseDir} - Resolve
${BUN}runtime: ifbuninstalled →bun; else suggest installing Bun - If
{baseDir}/scripts/node_modulesdoes not exist, run${BUN} install --cwd {baseDir}/scripts ${READER}={baseDir}/scripts/baoyu-fetch- 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.
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.
- references/adapters.md 3.2 KB
- references/config/first-time-setup.md 2.4 KB
- references/quality-gate.md 2.4 KB
- scripts/baoyu-fetch 122 B
- scripts/bun.lock 35 KB
- scripts/lib/adapters/generic/index.ts 2.4 KB runs code
- scripts/lib/adapters/hn/index.ts 10 KB runs code
- scripts/lib/adapters/index.ts 834 B runs code
- scripts/lib/adapters/types.ts 2.1 KB runs code
- scripts/lib/adapters/x/article.ts 12 KB runs code
- scripts/lib/adapters/x/index.ts 4.0 KB runs code
- scripts/lib/adapters/x/login.ts 2.2 KB runs code
- scripts/lib/adapters/x/match.ts 297 B runs code
- scripts/lib/adapters/x/payloads.ts 1.6 KB runs code
- scripts/lib/adapters/x/session.ts 1.4 KB runs code
- scripts/lib/adapters/x/shared.ts 13 KB runs code
- scripts/lib/adapters/x/single.ts 2.5 KB runs code
- scripts/lib/adapters/x/thread-loader.ts 8.9 KB runs code
- scripts/lib/adapters/x/thread.ts 9.0 KB runs code
- scripts/lib/adapters/x/types.ts 600 B runs code
- scripts/lib/adapters/youtube/index.ts 898 B runs code
- scripts/lib/adapters/youtube/transcript.ts 13 KB runs code
- scripts/lib/adapters/youtube/utils.ts 6.4 KB runs code
- scripts/lib/browser/cdp-client.ts 6.7 KB runs code
- scripts/lib/browser/chrome-launcher.ts 5.7 KB runs code
- scripts/lib/browser/cookie-sidecar.ts 2.9 KB runs code
- scripts/lib/browser/interaction-gates.ts 4.0 KB runs code
- scripts/lib/browser/network-journal.ts 7.0 KB runs code
- scripts/lib/browser/page-snapshot.ts 3.3 KB runs code
- scripts/lib/browser/profile.ts 5.5 KB runs code
- scripts/lib/browser/session.ts 4.5 KB runs code
- scripts/lib/cli.ts 6.9 KB runs code
- scripts/lib/commands/convert.ts 17 KB runs code
- scripts/lib/extract/document.ts 846 B runs code
- scripts/lib/extract/html-cleaner.ts 11 KB runs code
- scripts/lib/extract/html-extractor.ts 2.2 KB runs code
- scripts/lib/extract/html-to-markdown.ts 21 KB runs code
- scripts/lib/extract/markdown-renderer.ts 4.6 KB runs code
- scripts/lib/media/default-downloader.ts 5.1 KB runs code
- scripts/lib/media/markdown-media.ts 13 KB runs code
- scripts/lib/media/media-utils.ts 6.1 KB runs code
- scripts/lib/media/types.ts 710 B runs code
- scripts/lib/types/defuddle-node.d.ts 605 B runs code
- scripts/lib/types/shims.d.ts 422 B runs code
- scripts/lib/utils/logger.ts 645 B runs code
- scripts/lib/utils/url.ts 300 B runs code
- scripts/package.json 557 B
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.
- 12d ago First seen · 172 lines · 72 tokens per session scan A 40913749b0e9
baoyu-url-to-markdown is a skill published in the GitHub repository guanyang/open-agent-hub (967 stars, last pushed yesterday), 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. It is 100% identical to baoyu-url-to-markdown, differing in 0 lines, and is treated as a copy.
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