Adds generatePredictionsOpen to acb-index-builder, writing:
- data/predictions/open.json — upcoming predictable matches
Queries pending matches that are "predictable":
- Both bots in top 20
- Rivalry matches (3+ previous h2h matches)
- Series matches
- Evolved bot vs top-10 human-written bot
Output schema:
- updated_at — timestamp of generation
- matches — array of {match_id, bot_a, bot_b, a_rating, b_rating, open_until, head_to_head_record}
Limits to next 10 matches to keep file small. Refreshes every ~15 min by the index builder.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
4d1f5f976d