## Flee Threshold Changes
- Reduced flee threshold from AttackRadius2+4 to AttackRadius2 (no buffer)
- Modified bots: farmer, gatherer, siege
- Bots now only consider enemies in actual attack range, not preemptively
- Added outnumber logic: only flee when nearbyAllies < nearbyEnemies
## Behavior Vector Changes
- Derive aggression from actual kill rate (not self-reported)
- Formula: behaviorVec[0] = min(killRate, 1.0)
- Preserves existing economy value or defaults to 0.5
- Enhanced logging to show derived aggression value
## Rationale
Aggression must be economically necessary, not just rewarded.
Previous flee logic created a false safe option that discouraged combat.
Now bots only flee when actually outnumbered within combat range.
Related: bf-413 genesis bead tracking mechanics iteration
- Updated fitness formula: fitness = 0.7*win_rate + 0.3*kill_rate (was win_rate only)
- Added kill tracking to ArenaResult: TotalKills, TotalMatches, KillRate
- Updated evolver system prompt to explicitly mention combat kills are valuable
- Enhanced arena logging to show kill rate and total kills
This change makes the LLM evolver select for combat aggression, not just win
optimization. The system prompt now informs bots that kills and eliminations
are part of the fitness evaluation, encouraging more aggressive strategies.
Related: bf-59h
The function RunEvolutionLoop takes ctx as a parameter, so line 191
should use = instead of := to avoid shadowing the parameter.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Index builder:
- Add slog import for structured logging
- Improve fetchEvolutionMeta to return empty meta instead of error when programs table is empty
- Add logging to show evolution system status (running vs not initialized)
- Add logging in generateEvolutionMeta to show when evolution data is written
Evolver:
- Add automatic schema initialization and population seeding in RunEvolutionLoop
- Programs table is now automatically seeded with 6 initial strategy bots on startup
- Log seeding status to indicate whether programs table was already initialized
These changes ensure the evolution system properly initializes when deployed
and provides better visibility into its status via structured logging.
Closes: bf-4zde
Evolver writes live.json to R2 every cycle. Observatory page polls and
renders live feed + lineage tree + meta shift chart.
- Added ACB_R2_UPLOAD_ENABLED env var to enable automatic R2 upload during run loop
- CycleState tracks real-time evolution cycle status (generation, phase, candidate, validation, evaluation)
- Export() now includes cycle info when cycleState is provided
- runCycle() integrated with live observatory exports at each phase transition
- exportLiveQuiet() for mid-cycle status updates without verbose logging
- Fixed function signature mismatches for exportLiveQuiet calls
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Wire up the acb-map-evolver to run automatically on a weekly schedule
(Sunday 03:00 UTC by default) from the evolver deployment.
The map evolution ticker:
- Waits until the next scheduled time (weekday:hour:minute UTC)
- Runs acb-map-evolver --once to evolve maps for all player counts
- Repeats every 7 days
The schedule can be configured via ACB_MAP_EVOLUTION_SCHEDULE env var
(format: WEEKDAY:HH:MM, e.g., "0:03:00" for Sunday 03:00 UTC).
Enable via ACB_MAP_EVOLUTION_ENABLED=true or --enable-map-evolution flag.
Per plan §14.6: the weekly map evolution loads engagement scores,
runs MAP-Elites evolution, promotes high-scoring variants, and updates
the active map pool in the database.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
- Implement runWeeklyLoop() function that waits for scheduled time and
runs evolution for all player counts (2, 3, 4, 6) weekly
- Add --weekly flag to enable weekly mode (default: Sunday 03:00 UTC)
- Add --weekly-schedule flag for custom schedule (WEEKDAY:HH:MM format)
- Add ACB_WEEKLY_SCHEDULE env var for configuration
feat(acb-evolver): add weekly map evolution ticker
- Add MapEvolutionEnabled and MapEvolutionSchedule to RunConfig
- Add --enable-map-evolution flag to acb-evolver run subcommand
- Add startMapEvolutionTicker() goroutine that runs weekly
- Ticker executes acb-map-evolver --once to trigger map breeding
- Configurable via ACB_MAP_EVOLUTION_ENABLED and ACB_MAP_EVOLUTION_SCHEDULE
This integrates map evolution into the bot evolver's deployment,
allowing weekly automated map evolution based on engagement scores
as specified in plan §14.6.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Remove unused encoding/json and net/http imports from cmd/acb-evolver/run.go
that caused build failure. Include other pre-dispatch changes from prior work.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Changed RetirementCheckInterval from 1 hour to 24 hours to align
with the 7-day low-rating rule specified in §10.8. The retirement
automation is already fully implemented:
- startRetirementTicker: runs periodic checks (now daily)
- EnforcePolicy: retires bots below rating threshold (800) for 7
consecutive days, enforces 50-bot population cap
- queryConsecutiveLowRating: uses rating_history table to track
consecutive days below threshold
- RetireBot: handles K8s manifest deletion via declarative-config
- TestEnforcePolicy_CapEnforcement: integration test for cap enforcement
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
- Add ReplayPlayer to type imports in replay-viewer.ts
- Add explicit type annotation for entry parameter in replay.ts transcript map
- Fixes TypeScript compilation errors for §15.3 screen reader transcript feature
- SeasonID and RulesVersion already present in engine/types.go Config struct
- Worker already populates from active season row via DB join
- Config embedded in VisibleState sent to bots each turn (including turn 0)
- All starter kits (go, python, rust, java, csharp) already expose and log fields
- Add season_id/rules_version logging to JavaScript starter on turn 0
- TypeScript Config interface already includes season_id and rules_version
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Add metrics server startup and HTTP middleware to acb-api, generation
counter metric to evolver, and R2 cache size metric to index builder.
Also remove dead measureR2CacheSize reference from index builder main.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Add crosspoll_state table to persist per-island generation counters
across evolver restarts. Load state on startup and save after each
cross-pollination check. Add persistence pattern and translation
structure tests.
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>
Adds cross-pollination logic that copies the top program from each island
to a random other island every 50 generations. When source and target
islands use different languages, the LLM translates the code. Generation
boundaries are tracked per-island to prevent duplicate events.
- New crosspoll package with boundary detection, migration, and LLM translation
- Added MaxGenerationByIsland DB query for generation counter tracking
- Integrated into RunEvolutionLoop with observability logging
- Tests for boundary logic, translation prompts, and target selection
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
