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 christopherlouet/claude-base --skill dev-documentgit clone --depth 1 https://github.com/christopherlouet/claude-baseWrote 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/christopherlouet/claude-base/dev-document)<a href="https://agentmods.dev/skills/christopherlouet/claude-base/dev-document"><img src="https://agentmods.dev/badge/skills/christopherlouet/claude-base/dev-document/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/christopherlouet/claude-base/dev-document"><img src="https://agentmods.dev/badge/skills/christopherlouet/claude-base/dev-document.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 | $0.00094 | $0.01464 |
| Opus 5.5 | $0.00038 | $0.00586 |
| Sonnet 5.5 | $0.00019 | $0.00293 |
| Haiku 4.5 | $0.00009 | $0.00146 |
Grade A, and why
dev-document 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 16d 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 — 201 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Document Generation
Goal
Write the code that makes an application produce documents — PDF, DOCX, XLSX, PPTX — with the right library for the stack.
Not this skill: when the deliverable is a file Claude writes, reads or edits itself (a memo, a filled-in form, a reviewed contract with tracked changes), Anthropic's own skills do it far better: anthropics/skills — docx, pdf, xlsx, pptx (reading and editing existing files, tracked changes, form filling, OCR). They ship under Anthropic's own terms (not open source): install or point to them, never copy them.
Supported formats
| Format | Extension | Recommended tool | Usage |
|---|---|---|---|
.pdf |
puppeteer / Playwright, WeasyPrint, pandoc | Reports, invoices, formal docs | |
| Word | .docx |
docx (npm), python-docx | Editable documents, specifications |
| Excel | .xlsx |
exceljs, openpyxl | Tabular data, numeric reports |
| PowerPoint | .pptx |
pptxgenjs, python-pptx | Presentations, pitch decks |
Instructions per format
PDF - Generation from HTML/Markdown
# Option 1: Puppeteer (Node.js)
npm install puppeteer
# Option 2: WeasyPrint (Python, HTML/CSS -> PDF, no browser)
pip install weasyprint
weasyprint input.html output.pdf
# Option 3: pandoc (Markdown -> PDF, needs a PDF engine such as weasyprint or a LaTeX install)
pandoc input.md -o output.pdf --pdf-engine=weasyprint
// Puppeteer - HTML to PDF
import puppeteer from 'puppeteer';
async function generatePDF(htmlContent: string, outputPath: string) {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.setContent(htmlContent, { waitUntil: 'networkidle0' });
await page.pdf({
path: outputPath,
format: 'A4',
margin: { top: '20mm', right: '15mm', bottom: '20mm', left: '15mm' },
printBackground: true,
});
await browser.close();
}
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.
- 16d ago Changed · +3 lines · +46 tokens per session 19829e063e7d
- 22d ago Changed · -2 lines de8f69fa082b
- 23d ago Changed · -6 lines 921e3558636c
- 24d ago Changed · -1 lines dd20020e134a
- 1mo ago First seen · 207 lines · 48 tokens per session scan A 47a56536c88f
dev-document is a skill published in the GitHub repository christopherlouet/claude-base (5 stars, last pushed 2d ago), licensed MIT. It adds 94 tokens to every session and 1,464 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-09-03.
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