skill

skill is a skill for Claude Code, Codex from Youxuuuuu/co-reading-kit. It costs 0 tokens per session (622 once invoked), scanned A, original, MIT.

A lightweight MCP server for reading books together with an AI assistant. It supports searching and reading imported books, tracking progress, and saving notes about passages or discussions.

In plain words
What is it for?
Use it to import EPUB, text, or Markdown books, find passages, continue reading from a saved place, discuss excerpts, and record reading notes.
Why use it?
It keeps reading context, highlights, progress, and notes organized instead of requiring the assistant to handle them as unstructured conversation.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to import EPUB, text, or Markdown books, find passages, continue reading from a saved place, discuss excerpts, and record reading notes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/youxuuuuu/co-reading-kit/skill
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.

Any agent
npx skills add Youxuuuuu/co-reading-kit --skill skill
Clone the repo
git clone --depth 1 https://github.com/Youxuuuuu/co-reading-kit

Made for: Claude Code, Codex.

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 skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/youxuuuuu/co-reading-kit/skill.svg)](https://agentmods.dev/skills/youxuuuuu/co-reading-kit/skill)
Your own site
<a href="https://agentmods.dev/skills/youxuuuuu/co-reading-kit/skill"><img src="https://agentmods.dev/badge/skills/youxuuuuu/co-reading-kit/skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 622 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00000 $0.00622
Opus 5 $0.00000 $0.00311
Sonnet 5 $0.00000 $0.00124
Haiku 4.5 $0.00000 $0.00062

Measured 7d ago against content hash 42b7e3f627bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

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 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.

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.

skill/SKILL.md · 28 lines

What it actually says

AI 使用规则

  1. 不要读取 original.md
  2. 默认一次只读一个 chunk。
  3. 有原文、划线、引用时,优先使用 reading_search_exact
  4. 主题词搜索使用 reading_search
  5. 继续阅读时,优先使用 reading_resume_book
  6. 需要查看本地切片地图时,使用 reading_get_manifest
  7. 想看“我有哪些书”或不确定 bookId 时,先用 reading_list_books
  8. 讨论后先调用 reading_update_note,再调用 reading_update_progress
  9. notes 只保存理解、想法、关联和下次入口,不要保存整段正文。
  10. 不要重复记录同一条划线。
  11. 如果 progress 不存在但用户想从头读,先用 reading_get_manifestch000,再用 reading_get_chunk
  12. 导入本地 epub/txt/md 时,使用 reading_import_book
  13. 如果导入后马上要搜索,设置 buildIndex=true 或调用 reading_build_index
  14. reading_get_manifest 不是正文读取工具,它不读取 original.md,也不读取 chunk 正文。
  15. 用户提供微信读书划线时,优先使用 reading_find_weread_context
  16. 如果找不到 localBookId,先调用 reading_link_weread_book,或让用户提供本地 bookId
  17. reading_find_weread_context 只做 exact 定位,不做语义猜测。
  18. 找到 chunk 后再共读。
  19. 当内容来自微信读书 markText、用户明确引用的原文,或 reading_find_weread_context 返回的划线定位结果时,必须写入“摘录与想法”。
  20. “摘录与想法”用于记录:微信读书划线、用户手动指出的一句话、围绕某句或某段原文展开的讨论,以及 quoteText / wereadMarkText / 本地 chunkId / 用户想法 / AI 理解。
  21. “段落共读记录”只用于记录:读完某个 chunk 后的整体讨论、没有明确摘录句子的段落理解、某个情节/人物关系/主题的整体分析。
  22. “交叉关联”只用于记录:跨书关联、作者背景关联、主题互文、后续可回看的简短关联线索。
  23. 禁止把微信读书划线分析、具体摘录分析、大段正文讨论写进“交叉关联”。
  24. 只搜索但没有展开讨论时,不写入 notes。
  25. 不要把整段 chunk 原文完整写入 notes。
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. 7d ago First seen · 28 lines · 0 tokens per session scan A 42b7e3f627bc

Subscribe to this mod's changes

skill is a skill published in the GitHub repository Youxuuuuu/co-reading-kit (65 stars, last pushed 2mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 622 tokens. 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 2026-08-30.

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