Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add mayank-io/mstack/plugin install fetchWrote 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/mayank-io/mstack/notion-public-site)<a href="https://agentmods.dev/skills/mayank-io/mstack/notion-public-site"><img src="https://agentmods.dev/badge/skills/mayank-io/mstack/notion-public-site.svg" alt="Measured on agentmods" 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 | $0.00053 | $0.00646 |
| Opus 5 | $0.00026 | $0.00323 |
| Sonnet 5 | $0.00011 | $0.00129 |
| Haiku 4.5 | $0.00005 | $0.00065 |
Grade A, and why
notion-public-site scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Download Notion Site
Download all content from a public Notion site as Markdown files.
Browser — always gstack, never headless
Browser work goes through the gstack browser, which holds the user's logged-in sessions. A fresh Playwright instance is logged out: it silently returns login walls or truncated content that looks like a successful capture.
B="$HOME/.claude/skills/gstack/browse/dist/browse"
"$B" connect # run from the target directory — another cwd spawns a second
# daemon and kills the headed session
"$B" goto "<url>"
"$B" js '<expression>'
Do NOT disconnect when done. browse disconnect tears down the daemon and
the logged-in sessions with it. Leave it running — the daemon is a shared user
resource, connect is safe to call again, and only whoever started it should
close it.
Never launch a headless browser. Not headless=True, not --headless, not a
fresh chromium.launch(). If gstack is unavailable, stop and say so rather than
falling back — a logged-out capture is worse than no capture, because it looks fine.
Arguments
$ARGUMENTSshould contain:<url> <output_dir> [--test]
Instructions
Run the Notion downloader script:
python3 ${CLAUDE_PLUGIN_ROOT}/scripts/notion_public_site_downloader.py $ARGUMENTS
If httpx or playwright are not installed, install them first:
pip3 install httpx playwright
python3 -m playwright install chromium
Features
- Automatically crawls all internal pages starting from the base URL
- Downloads embedded images to
attachments/folder - Converts Notion content to clean Markdown
- Rewrites internal links as Obsidian wikilinks
- Creates an index file with table of contents
- Use
--testflag to download only the first page for testing
Verification Steps
After download completes, verify the content:
- Count verification: Compare number of downloaded pages against expected (check _page_map.json)
- Content spot-check: open 2-3 random pages in the gstack browser and compare visible content with the downloaded markdown
- Link verification: Confirm wikilinks in markdown files point to existing files
- Image verification: Confirm images in attachments/ folder are valid and referenced
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.
- 7d ago First seen · 79 lines · 53 tokens per session scan A 4ddbe24c9053
notion-public-site is a skill published in the GitHub repository mayank-io/mstack (5 stars, last pushed 13d ago), licensed MIT. It adds 53 tokens to every session and 646 once invoked, about $0.0003 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 2026-08-31.
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