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 agentmods add instructions/minhlucvan/notebookmd/claude-mdgit clone --depth 1 https://github.com/minhlucvan/notebookmdWrote 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/instructions/minhlucvan/notebookmd/claude-md)<a href="https://agentmods.dev/instructions/minhlucvan/notebookmd/claude-md"><img src="https://agentmods.dev/badge/instructions/minhlucvan/notebookmd/claude-md.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 | $0.01402 | $0.01402 |
| Opus 5 | $0.00701 | $0.00701 |
| Sonnet 5 | $0.00280 | $0.00280 |
| Haiku 4.5 | $0.00140 | $0.00140 |
Grade A, and why
notebookmd CLAUDE.md 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 3d 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 — 130 lines — stays where its author put it; the contents beside it link to each section on GitHub.
notebookmd — Project Instructions
Overview
notebookmd is a Python package that provides a Streamlit-like API for generating structured
Markdown reports. It is designed for AI agents doing data analysis — agents call n.metric(),
n.table(), n.line_chart() etc. and get clean, structured Markdown output.
Architecture
The package uses a core + plugin architecture. The Notebook class is a thin core that
handles markdown buffering, asset management, and report lifecycle. All widget methods
(metric(), table(), line_chart(), etc.) are provided by plugins that are auto-loaded.
notebookmd/
├── __init__.py # Public API: nb(), Notebook, NotebookConfig, PluginSpec, register_plugin
├── core.py # Notebook class — core engine + plugin loading
├── plugins/ # Plugin system — base class, registry, and built-in plugins
│ ├── __init__.py # Re-exports: PluginSpec, register_plugin, BUILTIN_PLUGINS, all plugin classes
│ ├── _base.py # PluginSpec base class
│ ├── _registry.py # Global registry, entry-point discovery, load_default_plugins
│ ├── text.py # TextPlugin: title, header, subheader, caption, md, note, code, text, latex, divider
│ ├── data.py # DataPlugin: table, dataframe, metric, metric_row, json, kv, summary
│ ├── charts.py # ChartPlugin: line_chart, area_chart, bar_chart, figure, plotly_chart, altair_chart
│ ├── status.py # StatusPlugin: success, error, warning, info, exception, progress, toast, balloons, snow
│ ├── layout.py # LayoutPlugin: expander, container, tabs, columns
│ ├── media.py # MediaPlugin: image, audio, video
│ ├── analytics.py # AnalyticsPlugin: stat, stats, badge, change, ranking
│ └── utility.py # UtilityPlugin: write, echo, empty, connection_status, export_csv
├── widgets.py # 40+ widget renderers (metrics, charts, layout, status)
├── emitters.py # Low-level Markdown emitters (table, figure, code, kv)
├── capture.py # Stdout/stderr capture utilities
├── assets.py # AssetManager — saves figures, CSVs, tracks artifacts
└── py.typed # PEP 561 type checking marker
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.
- 3d ago First seen · 130 lines · 1,402 tokens per session scan A 42a62c3de5f1
notebookmd CLAUDE.md is an instructions file published in the GitHub repository minhlucvan/notebookmd (10 stars, last pushed 4mo ago), licensed MIT. It adds 1,402 tokens to every session, about $0.0070 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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