Demo read
Seed 42 is the clean stabilization story: early edits teach exact field mapping, then the gate prevents drift away from the UDL causal-claim admission contract.
Live run seed 42
Step 5 wins, then the gate keeps the skill stable.
Seed 42 accepts five updates, rejects two, then skips the remaining no-op or non-improving proposals. The final skill reaches 100% held-out hard accuracy and 98.81% held-out soft score.
Metrics
Seed 42 final result.
Gate trajectory
Validation hard score becomes perfect by step 3; best mixed score lands at step 5.
Step log
Accepted, rejected, skipped.
Epochs
Fast rise, long plateau.
Recipe artifact