Implement AI Tournaments & Balance Tooling (9.4.1)

[Copilot]

Final Phase 9 task: tournament infrastructure for running parallel AI games and producing comparative balance reports.

New Scripts

• scripts/run_ai_tournament.py - Parallel game execution via process pools

  • Configurable strategies (BALANCED, AGGRESSIVE, DIPLOMATIC, HYBRID)
  • Per-game telemetry capture (stability, story seeds, actions)
  • Aggregated JSON output

• scripts/analyze_ai_games.py - Balance analysis tooling

  • Win rate comparison across strategies
  • Unused story seed detection
  • Balance outlier flagging

CI Integration

• .github/workflows/ai-tournament.yml - Nightly tournament runs with artifact archiving

Tests

• 48 new tests in tests/scripts/test_ai_tournament.py and test_ai_analysis.py

Documentation

• Section 13 added to gameplay guide with balance iteration workflow
• README updated with tournament usage examples

Usage

# Run tournament with 100 games across all strategies
uv run python scripts/run_ai_tournament.py --games 100 --output build/tournament.json

# Analyze results
uv run python scripts/analyze_ai_games.py build/tournament.json --report build/analysis.txt

Original prompt

"Issue 48 - AI Tournaments & Balance Tooling" to GameDev

Created from Copilot CLI via the copilot delegate command.

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