Claude Code mod
oh-my-fable
Anthropic's prompting-guide rules for Claude Code, always on (Opus 5.5, Fable 5.1; Sonnet 5.5, Haiku 5.5, Opus 5 and Sonnet 5 too): install and forget: the working rules load at every session start and reach subagents, unattended sessions are detected automatically and get the early-stop rules, sessions at xhigh or max effort get the stop-after-checks rule, /fable turns a rough request into a guide-aligned prompt, /fable-status shows what is in effect, /fable-audit finds which guide sections your own rules are missing, /fable-setup moves the rules into a rules file (recommended once).
Install
git clone https://github.com/Junhan2/oh-my-fable.git
claude --plugin-dir ./oh-my-fable/.The repo has no marketplace file, so load the plugin folder directly with --plugin-dir.
What it can access
- Reach
- L0Draws and remembers: draws
- Draws in
AssistantMessage- Hooks
ui.render
From a static scan of the mod's code by awesome-claude-code-mods. It shows what the code asks for, not a security review.
How Claude Code mods work
- A mod is a plugin with a JavaScript or TypeScript module that runs inside Claude Code (version 2.1.287 or later). It can draw panes beside the transcript, a band above the prompt, buttons and toasts, restyle the spinner and tool rows, and watch or rewrite tool calls and prompts.
- It installs like any plugin: add its marketplace with /plugin marketplace add owner/repo, then /plugin install name@marketplace.
- Check what a mod can reach before installing: it runs with your permissions. Reach goes from drawing only, to reading files, to writing files or running processes, to the network. Run claude plugin validate on a clone to list its hooks and calls without running it.
- Turn one off from the Installed tab in /plugin, or start Claude Code with --safe-mode to skip every customization for a session.
Details
- Repository
- Junhan2/oh-my-fable
- Folder
.- Author
- Junhan2
- License
- MIT
- Last updated
- 20 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is oh-my-fable?
Anthropic's prompting-guide rules for Claude Code, always on (Opus 5.5, Fable 5.1; Sonnet 5.5, Haiku 5.5, Opus 5 and Sonnet 5 too): install and forget: the working rules load at every session start and reach subagents, unattended sessions are detected automatically and get the early-stop rules, sessions at xhigh or max effort get the stop-after-checks rule, /fable turns a rough request into a guide-aligned prompt, /fable-status shows what is in effect, /fable-audit finds which guide sections your own rules are missing, /fable-setup moves the rules into a rules file (recommended once). It is a mod for Claude Code, from Junhan2/oh-my-fable on GitHub.
What can the oh-my-fable mod access?
Its widest reach is "draws and remembers" (draws). It draws in AssistantMessage. Like any mod, it runs with your permissions.
How do I install oh-my-fable?
Clone Junhan2/oh-my-fable and start Claude Code with --plugin-dir pointing at the mod's folder (.).
Is oh-my-fable popular?
Junhan2/oh-my-fable has 57 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 20 October 2026.
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