Make Claude Opus 4.8 behave like Claude Fable 5 — doctrine output style, drift-catching hooks, and an eval loop against golden Fable transcripts. Claude Code plugin.
Latest release v0.1.3 — v0.1.3 — 24-probe corpus, means-based measurement, published error bars · 3 Jul 2026
1 file for Claude Code: opus-fable-playbook .
.claude/settings.json A — These files are rennf93/opus-fable-playbook's own configuration — they tell Claude Code how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.