Fable 5 flips to pay‑per‑use in 48 hours. Burn the remaining runway to make sure you don’t actually leave anything behind.

The play: have Fable comb your repo and draft a complete skills library before the timer hits zero. Frame it as a retiring principal engineer doing a final handoff to the team, and it snaps into a totally different gear.
On the other side you get 10–16 skill files—debugging runbooks, change policies, the painful failure tales that ate days. Every instinctive judgment it would’ve made silently is now documented and reusable by Opus and Sonnet for pennies.
Single pass. About 30% of your weekly budget. Value keeps compounding even after it’s locked behind credits.