Fable 5 methodology as a Claude Code plugin: decompose by verification boundaries, verify against the world, choose next by plan-change. Ships fable-scout + fable-refuter agents.
1 file for Codex and OpenCode: fable-5 AGENTS.md — 394 tokens loaded in every session.
AGENTS.md A 394 tok These files are Learn57130/fable-5's own configuration — they tell Codex and OpenCode 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.