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AI EngineeringPython

Fablize

by fivetaku

Fablize is an AI Engineering skill for Claude Code, published by fivetaku in fablize.

895 stars125 forkson fivetaku/fablizeAdded 2026/08/22Repository updated 2026/07/06
agenticanthropicclaudeclaude-codefableharnessopus
Install in seconds
Install Fablize
Copy Fablize 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/fivetaku/fablize/tree/main/skills/fablize ~/.claude/skills/fablize

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

Without Node.js

git clone https://github.com/fivetaku/fablize.git

Clones the whole repository, then copy the skillโ€™s own directory into your skills folder yourself.

In this catalog

Source file
skills/fablize/SKILL.md in fivetaku/fablize
Installs to
~/.claude/skills/fablize
Collection
The only skill cataloged from this repository
Category
AI Engineering โ€” 2451 skills

What Fablize does

Fablize makes Claude models follow multi-step tasks through to completion with verification, evidence, and investigation steps. Use it for long autonomous work, debugging, and renderable artifacts that need to be checked as they are built.

Fablize is cataloged under AI Engineering on DirSkills. Fablize comes from a repository tagged agentic, anthropic, claude, claude-code and fable.

Documentation

README

fablize โ€” run Opus like Fable

Principle: a harness cannot raise a model's ceiling. It makes the model go all the way to its own ceiling โ€” by enforcing verification, completion, and investigation as procedure. When the capability ceiling is the blocker (open-ended creative detail, self-driven discovery), escalate (ยง4).

Apply only what the task signals (smallest matching discipline; overlap only when genuinely multi-category). When installed always-on, this routing is automatic.

0. First run โ€” set up automatically (once)

Before doing the requested task, check whether fablize has been onboarded on this machine:

cat ~/.fablize/progress.json 2>/dev/null

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

Commands Fablize provides

Slash commands named in this skillโ€™s SKILL.md, listed in the order they first appear.

  • /fablize
  • /effort

Frequently asked about Fablize

  • How does Fablize compare to other AI Engineering skills?

    Fablize ranks #1497 by stars among the 2451 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 Fablize against them. Open each page to compare what they document and how they install.