Found 6 free Claude Code skills that Fable 5 wrote for Opus 4.8 before the window closes. Whoever made them blind-tested each one and published the runs that failed.

Someone created six working discipline skills based on Fable 5's methodology and tested them on Claude Opus 4.8 using blind evaluation against tasks with planted traps. The skills achieved 12 wins, 0 losses, and 2 ties across 14 gradings while increasing token usage by approximately 7% per task. Two skills initially failed and those failed runs were published transparently; after revision and retesting on new tasks, all six skills were released free and are compatible with multiple CLI platforms.