book

book is a command for coding agents from johnnywuj81/tokenknows. It costs 44 tokens per session (278 once invoked), scanned A, original, MIT.

A command that turns a long coding-agent conversation into a structured technical book with sections grouped into volumes, chapters, and subsections.

In plain words
What is it for?
Use it to document a deep technical exploration, such as learning how a protocol works or recording decisions from a long project discussion.
Why use it?
It preserves useful knowledge from a lengthy discussion in a document that can be read and referenced later.

Command

Part of the tokenknows plugin — 2 skills, 9 commands, 1 MCP server shipped together

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 commands/johnnywuj81/tokenknows/book
Clone the repo
git clone --depth 1 https://github.com/johnnywuj81/tokenknows

Or install tokenknows, the plugin that ships this one along with the rest of its 2 skills, 9 commands, 1 MCP server.

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.

agentmods badge for book

README.md
[![agentmods](https://agentmods.dev/badge/commands/johnnywuj81/tokenknows/book.svg)](https://agentmods.dev/commands/johnnywuj81/tokenknows/book)
Your own site
<a href="https://agentmods.dev/commands/johnnywuj81/tokenknows/book"><img src="https://agentmods.dev/badge/commands/johnnywuj81/tokenknows/book.svg" alt="Measured on agentmods" height="20"></a>
Per session 44 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 278 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00044 $0.00278
Opus 5 $0.00022 $0.00139
Sonnet 5 $0.00009 $0.00056
Haiku 4.5 $0.00004 $0.00028

Measured 3d ago against content hash 4c33865a35f5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

book 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 3d 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.

tokenknows-plugin/commands/book.md · 20 lines

What it actually says

tokenknows:distill skill 的标准流程,把当前 session 蒸馏成 book:

注意: book 类型生成耗时较长 (5-10 分钟), 调多次 LLM 顺序生成各章, 适合:

  • 长达数小时的深入对话
  • 单一主题 deep dive (e.g. "MCP 协议从原理到实现")
  • 想沉淀成参考材料的内容

短对话不要用 book, 用 weekly_report / tech_design 更经济.

  1. 提示用户 "book 类型预计 5-10 分钟, 是否继续?"
  2. 拆 event 时按主题分组 (book outline 阶段 LLM 会再次组织成卷/章)
  3. submit_session_events
  4. distill_document(document_type="book", time_window=$ARGUMENTS 默认 last_30_days)
  5. 轮询时长放宽到 600s
  6. 展示时先列卷-章 outline, 再问用户要看哪章
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.

  1. 3d ago First seen · 20 lines · 44 tokens per session scan A 4c33865a35f5

Subscribe to this mod's changes

book is a command published in the GitHub repository johnnywuj81/tokenknows (4 stars, last pushed 15d ago), licensed MIT. It adds 44 tokens to every session and 278 once invoked, about $0.0002 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.