# Execution Plan — Orchestrator 4: Level Progression, EXP Curve, Death Penalty & Godhood Ascension

## 1. Objective
Triển khai hoàn chỉnh hệ thống Cấp độ (Level 1-100), Đường cong EXP Đa tầng (Piecewise Exponential EXP Curve), Cơ chế Phạt Chết Hardcore-Softcore lai (15% ở 90-99, 25% ở 99->100), và Nhiệm vụ Thăng Hoa Tối Thượng Cấp 100 mở Node Niết Bàn Đổi Hình Dạng (Godhood Avatar Metamorphosis Keystone) cho FreeExile theo đúng yêu cầu tại ORIGINAL_REQUEST.md (§ 2026-10-01T00:40:44Z).

## 2. Phase Breakdown

### Phase 0: Discovery & Survey (Parallel)
- **Explorer / Spec Miner 1 (`spec_miner_survey_exp_1`)**:
  - Focus: Database schema (`data/game_design_matrix.db`), `progression_benchmarks` table, `server/world/game_design_matrix_seeder.py`, existing level data, character progression tables.
- **Explorer 2 (`explorer_survey_progression_1`)**:
  - Focus: Core game engine integration (`server/world/combat_engine.py`, `server/world/zone_engine.py`, `server/world/level_progression_service.py` if exists or needed, ascendancy trial systems, player death and respawn logic).
- **Explorer 3 (`explorer_survey_balance_1`)**:
  - Focus: Balance simulation tools (`tools/balance/simulate_level_progression.py`), existing Monte-Carlo scripts, test coverage, hygiene/security linters.

### Phase 1: Synthesis & PROJECT.md
- Merge findings into Feature Inventory and Milestone plan in `PROJECT.md`.
- Launch Dual Track: E2E Testing Track (opaque-box test suite) + Implementation Milestones.

### Phase 2: Iteration Loop per Milestone
- For each milestone:
  - 3 Explorers -> 1 Worker -> 2 Reviewers -> 2 Challengers -> 1 Auditor -> Gate Check.

### Phase 3: Final Acceptance & Hardening
- 100% E2E test pass (Tiers 1-4).
- Tier 5 Adversarial Coverage Hardening.
- Forensic Auditor CLEAN verdict.
- Run hygiene linter (`python tools/lint/check_code_and_doc_hygiene.py --strict`) and security audit (`python tools/security/run_independent_security_audit.py`).
- Handoff & victory claim to Sentinel.