# Bead bf-413 Verification

## Date: 2025-06-17

Verified that all backlog items from the Genesis AI Code Battle Mechanics Iteration bead are complete:

### Code Verification Results

✅ **Combat Kill Scoring** (engine/turn.go:272-275)
```go
if e.Owner < len(gs.Players) {
    gs.Players[e.Owner].Score += gs.Config.KillScore
}
```

✅ **Fitness Formula** (cmd/acb-evolver/run.go:608)
```go
fitness := 0.7*winRate + 0.3*killRate
```

✅ **CombatDeaths Tracking** (cmd/acb-evolver/internal/arena/arena.go:204-221)
- TotalKills and KillRate computed from arena outcomes
- CombatDeaths array tracks kills per player

✅ **Behavior Vector from Kill Rate** (cmd/acb-evolver/run.go:614-625)
```go
aggression := killRate
if aggression > 1.0 {
    aggression = 1.0
}
behaviorVec = []float64{aggression, program.BehaviorVector[1]}
```

✅ **Flee Thresholds with Outnumber Logic** 
- bots/farmer/strategy.go:262-296
- bots/gatherer/strategy.go:112-142
- bots/siege/strategy.go:282-312

All mechanics now make combat economically necessary:
- Bots only flee when locally outnumbered AND enemies are in attack range
- Kill rate contributes 30% to evolver fitness
- Aggression is derived from actual combat performance, not LLM self-report

## Status

All 5 backlog items completed and verified. The evolutionary loop now has proper incentives for combat aggression.