What is notabene-authoring?

A writing guide for Notabene documentation, where plain Markdown or MDX files are rendered as a documentation site. It describes the text, code, diagrams, tables, and other elements that the renderer supports.

Use it to create or edit Notabene pages, add code examples and tables, and include diagrams such as flowcharts or entity-relationship diagrams.

It helps authors avoid writing formats that will display incorrectly or lose content when the documentation site is built.

notabene-authoring — Skill for Claude Code by z29k

Install

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.

Claude Code

/plugin marketplace add z29k/notabene

Claude Code

/plugin install notabene

Made for: Claude Code.

Or install notabene, the plugin that ships this one along with the rest of its 3 skills, 5 commands.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/z29k/notabene/notabene-authoring/github.svg)](https://agentmods.dev/skills/z29k/notabene/notabene-authoring)

Your own site

<a href="https://agentmods.dev/skills/z29k/notabene/notabene-authoring"><img src="https://agentmods.dev/badge/skills/z29k/notabene/notabene-authoring/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/z29k/notabene/notabene-authoring"><img src="https://agentmods.dev/badge/skills/z29k/notabene/notabene-authoring.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 168 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,472 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00168	$0.02472
Opus 5	$0.00084	$0.01236
Sonnet 5	$0.00034	$0.00494
Haiku 4.5	$0.00017	$0.00247

Measured 10d ago against content hash ed9062022f80, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

notabene-authoring 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 10d 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.

packages/claude-plugin/skills/notabene-authoring/SKILL.md · 170 lines

How it starts

The opening of the file, as written. The whole thing — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Authoring notabene docs — the rendering palette

What actually renders in a notabene site, so you can write a complete doc with every tool available and nothing that silently degrades to plain text. Docs are plain files in the repo (Markdown/MDX), rendered by the notabene renderer (Astro + GFM + Shiki + Mermaid).

Run every CLI command shown below through the plugin forwarder — node "${CLAUDE_PLUGIN_ROOT}/bin/nb.mjs" <cmd> --root <repo-root> — never npx notabene (unscoped: not our package).

First: know the format

Read format in notabene.config.mjs (or run npx -y @z29k/notabene@latest doctor --json). It decides the pipeline:

commonmark (the init default) — globs .md + .markdown, lenient CommonMark/GFM, no MDX. <, {, Promise<T>, raw HTML, GFM tables all render without a crash. Simplest.
mdx — globs .md + .mdx. .md stays lenient; .mdx is strict (JSX/expressions): a stray { or < outside a code fence is a build error.

Everything below works in both formats. The MDX-only extras (components/expressions) are called out at the end.

The palette (all verified to render)

Prose + CommonMark: headings, lists, **bold**, _italic_, > blockquotes, --- rules, inline `code`, links.
GFM: tables, task lists (- [ ] todo / - [x] done), ~~strikethrough~~, autolinks, footnotes (text[^1] … [^1]: note).
Code blocks with syntax highlighting — fenced with a language, highlighted by Shiki (github-dark unless the site sets its own code theme, soft-wrap on). Any Shiki-supported language:
```
```ts
export const x: number = 1;
```
```
Mermaid diagrams — see the next section (the reason this palette exists).
Inter-doc links: link between docs with relative .md/.mdx paths ([see setup](../guide/setup.md)) — they're auto-rewritten to site routes. External/absolute/ anchor links are left as-is.
Images: standard Markdown ![alt](path) (also good for embedding a pre-rendered SVG — see MCD below).
Headings drive the page: the first # H1 becomes the page title (unless frontmatter title overrides it — see Page metadata below), and headings build the table of contents + anchor links. Use one H1 per page.

Read the full file on GitHub · 170 lines

Changes

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.

10d ago First seen · 170 lines · 168 tokens per session scan A ed9062022f80

Subscribe to this mod's changes

notabene-authoring is a skill published in the GitHub repository z29k/notabene (5 stars, last pushed 28d ago), licensed MIT. It adds 168 tokens to every session and 2,472 once invoked, about $0.0008 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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