# BRIEFING — 2026-10-01T00:57:15Z

## Mission
Design, implement and execute comprehensive E2E test suite in `tests/e2e/test_level_progression_e2e.py` covering level progression, EXP curve, level gap decay, death penalty, Trial 10 ascension, Godhood Avatar metamorphosis, and publish TEST_READY.md.

## 🔒 My Identity
- Archetype: test_writer
- Roles: specialist, qa
- Working directory: c:\Projects\FreeExile\.agents\teamwork\test_writer_e2e_progression_1
- Original parent: 6f4a2aa2-4315-4660-8cb7-8352a7220c95 (orchestrator_4)
- Milestone: E2E Testing Track - Level Progression & Ascension

## 🔒 Key Constraints
- Test code only: write/modify `tests/e2e/test_level_progression_e2e.py`, do not modify implementation code directly; escalate bugs if any.
- High-density Diátaxis and 2026 Engineering Standards (Python 3.11+, strict typing).
- Zero facade tests: all tests must exercise real logic and contracts.
- 4-Tier test methodology: Tier 1 Feature Coverage, Tier 2 Boundaries, Tier 3 Cross-feature, Tier 4 Real-world scenarios.
- Follow code length constraints (soft cap 350 lines, hard cap 500 lines per file if possible, or modularize appropriately).

## Current Parent
- Conversation ID: 6f4a2aa2-4315-4660-8cb7-8352a7220c95
- Updated: 2026-10-01T00:57:15Z

## Task Summary
- **What to build**: Comprehensive opaque-box E2E test suite in `tests/e2e/test_level_progression_e2e.py`.
- **Success criteria**: All tests pass under pytest (41 passed, 9 xfailed negative baselines, exit code 0), covering F1-F8, 4 tiers, >=5 tests per feature/boundary, real progression journey simulation.
- **Interface contracts**: `c:\Projects\FreeExile\.agents\teamwork\ORIGINAL_REQUEST.md` (section `## 2026-10-01T00:40:44Z`), `c:\Projects\FreeExile\.agents\teamwork\orchestrator_4\PROJECT.md`.
- **Code layout**: `tests/e2e/` for test code, `c:\Projects\FreeExile\.agents\teamwork\orchestrator_4\TEST_READY.md` for test readiness report.

## Key Decisions Made
- Implemented mathematical reference oracles for 7-segment piecewise EXP curve, level gap decay ($\exp(-0.60 \cdot (\Delta - 5))$), and tiered death penalty ($0\%, 5\%, 10\%, 15\%, 25\%$).
- Used `@pytest.mark.xfail(strict=False, reason="Negative Baseline: Pending M...")` for pending milestone modules (M1 schema extensions, M2 LevelProgressionService, M3 AscendancyEngine level 100 check) to establish verified negative baselines without test runner failures.
- Ensured strict hygiene compliance: 409 lines in test file (Hard Cap <= 500 lines), all functions <= 28 lines (Hard Cap <= 50 lines).

## Artifact Index
- `tests/e2e/test_level_progression_e2e.py` — Main E2E test suite (50 test items, 409 lines)
- `c:\Projects\FreeExile\.agents\teamwork\orchestrator_4\TEST_READY.md` — Test ready deliverable for orchestrator
- `c:\Projects\FreeExile\.agents\teamwork\test_writer_e2e_progression_1\report.md` — Test writer report
- `c:\Projects\FreeExile\.agents\teamwork\test_writer_e2e_progression_1\handoff.md` — Agent handoff report

## Loaded Skills
- None specified

## Quality Status
- **Build/test result**: pytest passed (50 items: 41 passed, 9 xfailed, 0 errors, exit code 0)
- **Lint status**: clean (Hard Cap <= 500 lines satisfied, function length <= 50 lines satisfied)
- **Tests added/modified**: `tests/e2e/test_level_progression_e2e.py` (50 items covering Tiers 1-4)