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.
/plugin marketplace add Londeren/claude-pluginsnpx agentmods add plugins/londeren/claude-plugins/book-to-skillgit clone --depth 1 https://github.com/Londeren/claude-pluginsWrote 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/plugins/londeren/claude-plugins/book-to-skill)<a href="https://agentmods.dev/plugins/londeren/claude-plugins/book-to-skill"><img src="https://agentmods.dev/badge/plugins/londeren/claude-plugins/book-to-skill.svg" alt="Measured on agentmods" height="20"></a>Grade A, and why
book-to-skill 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 4d 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.
What it actually says
{
"name": "book-to-skill",
"displayName": "Book to Skill",
"version": "1.0.1",
"description": "Turns a Markdown knowledge source (book, manual, course, transcript) into a Claude skill: extracts the transferable method with source anchors, validates every unit against the source, assembles a thin SKILL.md plus reference sheets, and measures the result with evals.",
"author": {
"name": "Sergey Lebedev",
"url": "https://github.com/Londeren"
},
"homepage": "https://github.com/Londeren/claude-plugins",
"repository": "https://github.com/Londeren/claude-plugins",
"license": "MIT",
"keywords": [
"skill-generation",
"knowledge-extraction",
"methodology",
"distillation",
"playbook",
"book"
]
}
What it installs
The manifest is a name and a version. 1 skill travel with it, and installing the plugin installs all of them — 195 tokens a session between them. Each is measured on its own page, and each can be installed alone.
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.
- 4d ago First seen · 22 lines scan A 84e97e7e9aa5
book-to-skill is a plugin published in the GitHub repository Londeren/claude-plugins (4 stars, last pushed 9d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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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