Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/magnus919/agent-skillsnpx agentmods add skills/magnus919/agent-skills/gutenbergWrote 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/magnus919/agent-skills/gutenberg)<a href="https://agentmods.dev/skills/magnus919/agent-skills/gutenberg"><img src="https://agentmods.dev/badge/skills/magnus919/agent-skills/gutenberg/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/magnus919/agent-skills/gutenberg"><img src="https://agentmods.dev/badge/skills/magnus919/agent-skills/gutenberg.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00125 | $0.02178 |
| Opus 5 | $0.00063 | $0.01089 |
| Sonnet 5 | $0.00025 | $0.00436 |
| Haiku 4.5 | $0.00013 | $0.00218 |
Grade A, and why
gutenberg 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 7d 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.
Python standard library (urllib.request, json, html.parser, zipfile, re, sys). For How it starts
The opening of the file, as written. The whole thing — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Gutenberg — Public Domain Book Toolkit
Search, download, and extract clean text from Project Gutenberg — 70,000+ free public-domain ebooks. Ships a portable Python CLI with zero external dependencies.
Quick Start
# Search for books
python3 scripts/gutenberg search "Moby Dick"
# Download by Gutenberg ID (plain text)
python3 scripts/gutenberg download 2701 --format txt
# Download EPUB (for illustrated books)
python3 scripts/gutenberg download 2701 --format epub
# Extract clean text (strips PG boilerplate)
python3 scripts/gutenberg extract 2701
# Classify fiction vs non-fiction
python3 scripts/gutenberg classify 2701
# Full pipeline: search → download → extract
python3 scripts/gutenberg pipeline "Alice's Adventures in Wonderland"
How It Works
Project Gutenberg provides 70,000+ free public-domain ebooks in multiple formats. The gutendex API (https://gutendex.com) offers a free, unauthenticated JSON catalog. No API key required — just curl or this CLI.
Data Flow
User provides title/ID/author
↓
gutendex API search → pick book by ID
↓
Download plain text (preferred) or EPUB (fallback for illustrated books)
↓
Strip PG boilerplate → clean text
↓
Classify fiction/non-fiction → extract content
CLI Reference
search — Find books by keyword
python3 scripts/gutenberg search "Moby Dick"
python3 scripts/gutenberg search "Dracula" --limit 5
python3 scripts/gutenberg search "Sherlock Holmes" --json
python3 scripts/gutenberg search "Alice" --language en
Returns: ID, title, author (with life dates), language, subjects, download count. Results sorted by download count (most popular first).
metadata — Get full metadata for a book by ID
python3 scripts/gutenberg metadata 2701 # Moby Dick
python3 scripts/gutenberg metadata 11 # Alice's Adventures
python3 scripts/gutenberg metadata 1342 # Pride and Prejudice
python3 scripts/gutenberg metadata 1342 --json # JSON-only output
What ships with it
4 files 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.
- 7d ago Changed · +1 lines · +16 tokens per session a0e018980485
- 11d ago First seen · 182 lines · 109 tokens per session scan A 6c4deb9df10c
gutenberg is a skill published in the GitHub repository magnus919/agent-skills (76 stars, last pushed today), licensed MIT. It adds 125 tokens to every session and 2,178 once invoked, about $0.0006 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 2026-08-30.
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