How-ToDevelopersJuly 5, 2026

User creates Claude.md to make Opus/Sonnet act like Fable

A community member shares a custom Claude.md file to replicate Fable's behavior on Opus and Sonnet models. The file is intended for users who lack tokens to have Fable rewrite their own Claude.md.

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User creates Claude.md to make Opus/Sonnet act like Fable — AIBriefs