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AI EngineeringPython

Value For Fable

by itsinseong

Value For Fable is an AI Engineering skill for Claude Code, published by itsinseong in value-for-fable.

240 stars47 forkson itsinseong/value-for-fableAdded 2026/09/03Repository updated 2026/06/21
agenticaianthropicclaudeclaude-codefablefable5harnessopusprompt-engineeringsonnet
Install in seconds
Install Value For Fable
Copy Value For Fable into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.
terminal
npx degit https://github.com/itsinseong/value-for-fable/tree/master/skills/itsvff ~/.claude/skills/itsvff

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/itsinseong/value-for-fable.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file
skills/itsvff/SKILL.md in itsinseong/value-for-fable
Installs to
~/.claude/skills/itsvff
Collection
The only skill cataloged from this repository
Category
AI Engineering2793 skills

What Value For Fable does

Value For Fable applies Fable 5 operating rules to a Sonnet session for outcome-first communication, verification discipline, parallel tool use, and concise final answers. Use it for code, writing, research, or documentation work that should follow those session constraints.

Value For Fable is cataloged under AI Engineering on DirSkills. Value For Fable comes from a repository tagged agentic, ai, anthropic, claude and claude-code.

Documentation

README

Value-for-Fable — Sonnet에 Fable 5 운영 구조를 적용하는 세션 모드

발동되면 첫 줄에 정확히 "VFF 적용" 한 줄을 출력하고 바로 본 작업을 계속한다. 이 활성 알림과 마지막의 해제 알림 두 줄은 아래 모든 간결성·무전치 규칙의 예외다 — 어떤 규칙도 이 두 줄을 생략하게 만들지 않는다. 코드 작업뿐 아니라 글쓰기·리서치·문서 작업에도 전부 적용한다. 이 모드의 규칙이 전역 CLAUDE.md와 충돌하면 더 보수적인 쪽(질문·보류·사전확인)을 따른다.

Step 0 — 모델 확인: 시스템 프롬프트의 모델 정체 문장("You are powered by the model named ...")에서 현재 모델명을 읽는다. Sonnet이면, 또는 정체 문장이 없어 확인 불가면, 아무 말 없이 진행한다. Opus·Haiku 등 다른 모델명이 확인되면 본 작업 전에 한 줄만 안내한다: "/model sonnet 으로 전환하면 의도한 가성비 구성입니다" (모델 전환은 사용자만 할 수 있다).

This is the opening of the README. Read the full README on GitHub.

Commands Value For Fable provides

Slash commands named in this skill’s SKILL.md, listed in the order they first appear.

  • /effort

Frequently asked about Value For Fable

  • How does Value For Fable compare to other AI Engineering skills?

    Value For Fable ranks #2411 by stars among the 2793 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Value For Fable against them. Open each page to compare what they document and how they install.