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 john-data-chen/hermes-agent-backup --skill notiongit clone --depth 1 https://github.com/john-data-chen/hermes-agent-backupWrote 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/john-data-chen/hermes-agent-backup/notion)<a href="https://agentmods.dev/skills/john-data-chen/hermes-agent-backup/notion"><img src="https://agentmods.dev/badge/skills/john-data-chen/hermes-agent-backup/notion/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/john-data-chen/hermes-agent-backup/notion"><img src="https://agentmods.dev/badge/skills/john-data-chen/hermes-agent-backup/notion.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 | $0.00019 | $0.04174 |
| Opus 5.5 | $0.00008 | $0.01670 |
| Sonnet 5.5 | $0.00004 | $0.00835 |
| Haiku 4.5 | $0.00002 | $0.00417 |
Grade D, and why
notion scanned grade D with 3 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 1mo 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.
Sends data to an external URLmediumData exfiltration
A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.
curl -s -X PUT "{upload_url}" --data-binary @photo.png Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
curl -fsSL https://ntn.dev | bash Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
◆ **HTTP + curl** — works everywhere including Windows. **Default fallback** when `ntn` isn't installed. This is a copy
100% identical to notion — 3 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 — 449 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Notion
Talk to Notion two ways. Same integration token works for both — pick by what's available.
◆ ntn CLI — Notion's official CLI. Shorter syntax, one-line file uploads, required for Workers. macOS + Linux only as of May 2026 (Windows support "coming soon"). Default when installed.
◆ HTTP + curl — works everywhere including Windows. Default fallback when ntn isn't installed.
Setup
1. Get an integration token (required for both paths)
- Create an integration at https://notion.so/my-integrations
- Copy the API key (starts with
ntn_orsecret_) - Store in
${HERMES_HOME:-~/.hermes}/.env:NOTION_API_KEY=ntn_your_key_here - Share target pages/databases with the integration in Notion: page menu
...→Connect to→ your integration name. Without this, the API returns 404 for that page even though it exists.
2. Install ntn (preferred path on macOS / Linux)
# Recommended
curl -fsSL https://ntn.dev | bash
# Or via npm (needs Node 22+, npm 10+)
npm install --global ntn
ntn --version # verify
Skip ntn login — use the integration token instead. This works headlessly, no browser needed:
export NOTION_API_TOKEN=$NOTION_API_KEY # ntn reads NOTION_API_TOKEN
export NOTION_KEYRING=0 # don't try to use the OS keychain
Add those exports to your shell profile (or to ${HERMES_HOME:-~/.hermes}/.env) so every session inherits them.
3. Choose path at runtime
if command -v ntn >/dev/null 2>&1; then
# use ntn
else
# fall back to curl
fi
Windows users: skip step 2 entirely until native ntn ships — Path B works fine. If you want CLI ergonomics now, install ntn inside WSL2.
API Basics
Notion-Version: 2025-09-03 is required on all HTTP requests. ntn handles this for you. In this version, what users call "databases" are called data sources in the API.
Path A — ntn CLI (preferred, macOS / Linux)
Raw API calls (shorthand for curl)
ntn api v1/users # GET
ntn api v1/pages parent[page_id]=abc123 \ # POST with inline body
properties[title][0][text][content]="Notes"
ntn api v1/pages/abc123 -X PATCH archived:=true # PATCH; := is non-string (bool/num/null)
What ships with it
1 file 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.
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.
- 1mo ago First seen · 449 lines · 19 tokens per session scan D 798ad178ead7
notion is a skill published in the GitHub repository john-data-chen/hermes-agent-backup (2 stars, last pushed 3mo ago), licensed MIT. It adds 19 tokens to every session and 4,174 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it D with 3 findings (sends data to an external url, downloads and executes remote code, makes network calls). It is 100% identical to notion, differing in 3 lines, and is treated as a copy.
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