The evolver arena was using DefaultConfig() which has attack_radius2=12
for all matches. Per plan §3.4, 2-player matches should have
attack_radius2=36 (6 tiles) to achieve 65-80% combat density.
This bug caused evolved bots to learn energy-farming strategies since
enemies were rarely in attack range on 40x40 maps with only 3.5 tile
radius. With the correct 6-tile radius, bots will experience actual
combat during evolution and should develop fighting behaviors.
Closes: bf-3lt3
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
- Add Exploration and Formation axis definitions with feature extraction
from source code pattern matching (exploration/formation indicators)
- Extend Grid key from (x,y) to (x,y,z,w) with 3⁴=81-cell behavior grid
- Update bin assignment, promotion gate, and persistence (JSON snapshot)
- Add Slice() for 2-D dashboard visualization across any axis pair
- Migration: old 2-D archives project at z=middle, w=middle
- Update cross-pollination to pad 2-element behavior vectors to 4
- Add Prometheus metrics to matchmaker (bot crashes, stale job count)
- Add rivalry detection to index builder (data/meta/rivalries.json)
- Web: batched bot list loading, leaderboard keyboard accessibility,
improved ARIA attributes on match/playlist cards
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
- arena/arena.go: 10-match mini-tournament running candidate as a local
subprocess against diverse live opponents sampled across the rating
distribution; AES-GCM secret decryption for opponent auth
- arena/psro.go: Nash equilibrium computation for the 1×K meta-game;
FictitiousPlayNash included for future K×K support
- arena/winrate.go: Wilson-score 95% CI for win-rate calculation; draws
counted as 0.5 wins
- arena/gate.go: two-part promotion gate — Nash value ≥ threshold AND
MAP-Elites niche fill or improvement; detailed reason strings
- promoter/promoter.go: full promotion pipeline — bot source + Dockerfile
+ K8s Secret/Deployment/Service manifests, docker build, git commit/push
(ArgoCD sync), kubectl readiness poll, bots-table INSERT, programs-table
update; RetireBot and EnforcePolicy (rating threshold + population cap 50)
- db/db.go: add bot_name / bot_secret migration columns
- db/programs.go: ListPromoted, SetBotNameAndSecret, UnsetPromoted,
GetByBotID, PromotedCount helpers for promotion/retirement lifecycle
- main.go: evaluate and retire subcommands wiring arena + gate + promoter;
remove unused island flag from evaluate
- arena/arena_test.go: 21 unit tests covering Nash, Wilson CI, Gate logic,
and selectDiverse opponent sampling
- promoter/promoter_test.go: tests for Dockerfiles, bot-ID/secret generation,
AES-GCM helpers, and K8s manifest templates
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
