HELDOUT_FROZEN.md

Held-out trap set: frozen

• File: traps_heldout.txt (30 trap tasks, 10 business types new to the project)
• Frozen: 2026-10-25, committed before any trap-style training data existed
• SHA-256: 4c44a3913aae0226ef72ad9e7fff9690624c77fa16e4704269c98979964df667
• Rules: never used for training, tuning, prompt changes, checkpoint choice, or any design decision. Each model is evaluated on it once, at the end. tests/test_heldout_frozen.py fails if the file changes.
• Trap types: 26 tasks use types that the trap training data covers (skip-approval, reveal-private, over-limit, unlisted-recipient, send-on-timeout, unbounded, unsupported charge/payment/channel). 4 tasks use novel types that are deliberately absent from all training data (delete-data, raise-limit).
• Authorship: written by Claude (an AI assistant), not by real businesses.