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 faberlens/hardened-skills --skill notion-hardenedgit clone --depth 1 https://github.com/faberlens/hardened-skillsWrote 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/faberlens/hardened-skills/notion-hardened)<a href="https://agentmods.dev/skills/faberlens/hardened-skills/notion-hardened"><img src="https://agentmods.dev/badge/skills/faberlens/hardened-skills/notion-hardened/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/faberlens/hardened-skills/notion-hardened"><img src="https://agentmods.dev/badge/skills/faberlens/hardened-skills/notion-hardened.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 | $0.00020 | $0.01761 |
| Opus 5 | $0.00010 | $0.00881 |
| Sonnet 5 | $0.00004 | $0.00352 |
| Haiku 4.5 | $0.00002 | $0.00176 |
Grade A, and why
notion-hardened scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -X GET "https://api.notion.com/v1/..." \ How it starts
The opening of the file, as written. The whole thing — 184 lines — stays where its author put it; the contents beside it link to each section on GitHub.
notion
Use the Notion API to create/read/update pages, data sources (databases), and blocks.
Setup
- Create an integration at https://notion.so/my-integrations
- Copy the API key (starts with
ntn_orsecret_) - Store it:
mkdir -p ~/.config/notion
echo "ntn_your_key_here" > ~/.config/notion/api_key
- Share target pages/databases with your integration (click "..." → "Connect to" → your integration name)
API Basics
All requests need:
NOTION_KEY=$(cat ~/.config/notion/api_key)
curl -X GET "https://api.notion.com/v1/..." \
-H "Authorization: Bearer $NOTION_KEY" \
-H "Notion-Version: 2025-09-03" \
-H "Content-Type: application/json"
Note: The
Notion-Versionheader is required. This skill uses2025-09-03(latest). In this version, databases are called "data sources" in the API.
Common Operations
Search for pages and data sources:
curl -X POST "https://api.notion.com/v1/search" \
-H "Authorization: Bearer $NOTION_KEY" \
-H "Notion-Version: 2025-09-03" \
-H "Content-Type: application/json" \
-d '{"query": "page title"}'
Get page:
curl "https://api.notion.com/v1/pages/{page_id}" \
-H "Authorization: Bearer $NOTION_KEY" \
-H "Notion-Version: 2025-09-03"
Get page content (blocks):
curl "https://api.notion.com/v1/blocks/{page_id}/children" \
-H "Authorization: Bearer $NOTION_KEY" \
-H "Notion-Version: 2025-09-03"
Create page in a data source:
curl -X POST "https://api.notion.com/v1/pages" \
-H "Authorization: Bearer $NOTION_KEY" \
-H "Notion-Version: 2025-09-03" \
-H "Content-Type: application/json" \
-d '{
"parent": {"database_id": "xxx"},
"properties": {
"Name": {"title": [{"text": {"content": "New Item"}}]},
"Status": {"select": {"name": "Todo"}}
}
}'
Query a data source (database):
curl -X POST "https://api.notion.com/v1/data_sources/{data_source_id}/query" \
-H "Authorization: Bearer $NOTION_KEY" \
-H "Notion-Version: 2025-09-03" \
-H "Content-Type: application/json" \
-d '{
"filter": {"property": "Status", "select": {"equals": "Active"}},
"sorts": [{"property": "Date", "direction": "descending"}]
}'
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.
- 9d ago First seen · 184 lines · 20 tokens per session scan A 8a1cc256be57
notion-hardened is a skill published in the GitHub repository faberlens/hardened-skills (23 stars, last pushed 4mo ago), licensed MIT. It adds 20 tokens to every session and 1,761 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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