A local tool that converts books and other supported document files into clean Markdown chapters for use with language models. It works without internet access or language-model calls and produces repeatable output.

Use it to process EPUB, FB2, DOCX, HTML, TXT, Markdown, or text-based PDF files, organize their chapters, count tokens, and find text.

It removes the need to manually clean and split books before searching or giving them to an AI system.

librarian — MCP server by Terobyte

Install

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.

agentmods

npx agentmods add mcp/terobyte/librarian-cli/librarian

Clone the repo

git clone --depth 1 https://github.com/Terobyte/librarian-cli

Made for: Claude Code, Codex, Cursor.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

librarian 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 yesterday.

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.

server.json · 11 lines

What it actually says

{
  "librarian": {
    "command": "uvx",
    "args": [
      "librarian-cli"
    ],
    "env": {
      "LIB_HOME": ""
    }
  }
}

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.

yesterday First seen · 11 lines scan A f624158b43ac

Subscribe to this mod's changes

librarian is an MCP server published in the GitHub repository Terobyte/librarian-cli (0 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. 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.

Data and AI Documents LLM Languages claude cli ebooks epub fb2

librarian

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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