Agent skill

World Book Skill

by echo-xianyu in echo-xianyu/worldbook-skill

Create and manage SillyTavern Character Cards (角色卡) and World Books (世界书).

Custom licenceAuto-check passedFrontend & Design

Install World Book Skill

skills CLI
$ npx skills add echo-xianyu/worldbook-skill --skill world-book-skill -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install echo-xianyu/worldbook-skill world-book-skill --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/echo-xianyu/worldbook-skill.git skills-src && mkdir -p .claude/skills && cp -r skills-src/world-book-skill .claude/skills/world-book-skill && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
world-book-skill
GitHub stars
212
Token cost
~1.8k tokens
SKILL.md length
481 words
Files
18 (incl. scripts, references)
Skills in repo
1
Repo updated
First seen
Licence
Custom licence

At a glance

Create and manage SillyTavern Character Cards (角色卡) and World Books (世界书).

  • Works in 9 steps: 非商业红线 — 本技能仅服务于开源社区的免费 RolePlay… → 原创与二创分流 — 原创走 Plan 模式交互式提问;二创走… → 角色卡 description 为空 — description… → …
  • Tasks that involve Forms and validation
  • SKILL.md covers 本文内容, 铁律(全局约束), 任务路由 and 分支一:二创流程(有原文或网络搜索), plus 8 more sections
  • Runs Python scripts from its folder; calls python

What it does

World Book Skill is an agent skill from echo-xianyu/worldbook-skill. Create and manage SillyTavern Character Cards (角色卡) and World Books (世界书). Supports character card writing, world book creation, MVU ZOD variables, HTML beautification, opening scene writing, and card-generator.py integration. 支持角色卡编写、世界书创建、MVU ZOD 变量系统、HTML 前端美化、开场白创作、 card-generator.py 集成等多种场景。使用前先读取场景路由器和对应参考文件。

Its SKILL.md is about 1.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 20 other files, including scripts and reference files (for example `agents/openai.yaml`, `references/card-generator-guide.md` and `references/character-card-guide.md`).

It sits in Frontend & Design, covering Forms and validation. It works with Zod. The repository describes itself as: A skill for Agent to write Worldbook for SillyTavern.

When your agent uses it

  • Tasks that involve Forms and validation

Example prompts

  • “/world-book-skill”

Requirements

  • Python 3

Workflow steps

9 steps, taken from the first numbered list in SKILL.md.

  1. 非商业红线 — 本技能仅服务于开源社区的免费 RolePlay 创作。禁止为收费平台、商业代写、付费 API 服务生成角色卡或世界书。
  2. 原创与二创分流 — 原创走 Plan 模式交互式提问;二创走 information-extraction-guide.md 提取流程。两者不可混用。
  3. 角色卡 description 为空 — description 字段不写任何内容。角色全部信息(基本档案、外貌、背景、关系、性格)均放入世界书条目。
  4. 世界观设计先于世界书条目化 — 先读 world-building-guide.md 做概念设计,再读 world-book-guide.md 做条目落地。两个阶段不混淆。
  5. 先有设定,再写角色卡 — 角色卡编写在世界书条目完成后执行。设定不定稿,不写开场白。
  6. 不主动建议 MVU/EJS/HTML — 用户未提及上述功能时,绝不主动提议。EJS 依赖 MVU,用户要求 EJS 必须先确认 MVU 已启用。
  7. 禁词红线贯穿全程 — 收尾阶段强制执行 writing-optimization-guide.md,逐条扫描所有产出物。
  8. 物品写作分类规范 — 服装:写外观和材质,不写优点缺点。特殊道具:写外形和玩法,不写精确尺寸。
  9. 先读 reference,再动手 — 不凭记忆编写,每个任务类型必须读取其对应的全部 reference 文件后方可执行。任何写入操作之前必须先读 references/card-generator-guide.md,使用…

What it can do on your machine

Read from SKILL.md and the folder at commit e8501ea. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 3 files in scripts/ (Python), which the agent can run.

    Shell commands in SKILL.md call:

    • python

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

World Book Skill loads about 1.8k tokens when it runs, and up to ~57k if it reads all its reference files. Until then it costs about 83 tokens; SKILL.md has 481 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~83
When it runs · the whole SKILL.md, loaded when a task matches
~1.8k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~57k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 481 words (~1,787 tokens).

name
world-book-skill

Read the full SKILL.md on GitHub

Files

SKILL.md and 17 other files (scripts, references) in world-book-skill of echo-xianyu/worldbook-skill.

  • SKILL.md
  • agents/openai.yaml
  • references/card-generator-guide.md
  • references/character-card-guide.md
  • references/character-guide.md
  • references/config-guide.md
  • references/ejs-guide.md
  • references/guide.md
  • references/html-beautify-guide.md
  • references/information-extraction-guide.md
  • references/mvu-guide.md
  • references/position-guide.md
  • references/world-book-guide.md
  • references/world-building-guide.md
  • references/writing-optimization-guide.md
  • scripts/card-generator.py
  • scripts/query.py
  • scripts/world-book-create.py

Open the folder on GitHubat commit e8501ea

Compare with similar skills

World Book Skill next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

World Book Skill compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
World Book Skill this skillecho-xianyu/worldbook-skill212—~1.8kAutomated safety check: PassCustom licence
Reglevictorgarciaesgi/regle506—~840Automated safety check: PassMIT
Buzzformbuildnbuzz/buzzform102—~1.5kAutomated safety check: PassMIT
Regle Migrate Vuelidatevictorgarciaesgi/regle506—~752Automated safety check: PassMIT
Shared SchemasInsForge/InsForge13k—~628Automated safety check: PassApache-2.0
Opik Frontend Patternscomet-ml/opik22k—~1.1kAutomated safety check: PassApache-2.0

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Works with

Questions about World Book Skill

What does World Book Skill do?

Create and manage SillyTavern Character Cards (角色卡) and World Books (世界书). World Book Skill is an agent skill from echo-xianyu/worldbook-skill. Create and manage SillyTavern Character Cards (角色卡) and World Books (世界书).

When should I use World Book Skill?

World Book Skill fits situations like: tasks that involve Forms and validation.

How do I install World Book Skill in Claude Code?

Run `npx skills add echo-xianyu/worldbook-skill --skill world-book-skill -a claude-code`. Or copy the skill folder (world-book-skill in echo-xianyu/worldbook-skill) into .claude/skills/world-book-skill in your project. Claude Code loads it when a task matches its description.

How do I install World Book Skill in Codex?

Run `npx skills add echo-xianyu/worldbook-skill --skill world-book-skill -a codex`. Or copy the skill folder (world-book-skill in echo-xianyu/worldbook-skill) into .agents/skills/world-book-skill in your project. Codex loads it when a task matches its description.

Can I use World Book Skill in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add echo-xianyu/worldbook-skill --skill world-book-skill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/world-book-skill, .gemini/skills/world-book-skill, .github/skills/world-book-skill and .opencode/skills/world-book-skill in your project.

What does World Book Skill need to run?

Going by SKILL.md and its folder, World Book Skill needs Python for the scripts in its folder and the command-line tools its instructions call (python). Our summary lists: Python 3.

Does World Book Skill access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is World Book Skill safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does World Book Skill use?

World Book Skill has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does World Book Skill use?

About 1.8k tokens (SKILL.md is roughly 7.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 55k tokens, read only when the agent opens those files.

What are the alternatives to World Book Skill?

Skills that share tags, products or a category with World Book Skill: Regle (victorgarciaesgi/regle, 506 stars), Buzzform (buildnbuzz/buzzform, 102 stars), Regle Migrate Vuelidate (victorgarciaesgi/regle, 506 stars) and Shared Schemas (InsForge/InsForge, 13k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains World Book Skill?

echo-xianyu (a GitHub user) maintains it in echo-xianyu/worldbook-skill, which has 212 GitHub stars. The repository was last updated on May 18, 2026.

Source: echo-xianyu/worldbook-skill on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.