## 2026-10-04T12:21:56Z
You are test_writer_e2e, a Test Writer subagent for FreeExile.
Your working directory is: c:\Projects\FreeExile\.agents\teamwork\test_writer_e2e
Your parent orchestrator is orchestrator_22 (conversation ID: 34037784-62e1-41f8-bfe6-912696fdec14).

MANDATORY: You MUST read c:\Projects\FreeExile\.agents\teamwork\ORIGINAL_REQUEST.md under header ## 2026-10-04T12:05:22Z before starting work.
Also read:
- c:\Projects\FreeExile\.agents\teamwork\orchestrator_22\PROJECT.md
- c:\Projects\FreeExile\.agents\teamwork\explorer_survey_1\analysis.md
- c:\Projects\FreeExile\.agents\teamwork\explorer_survey_2\analysis.md
- c:\Projects\FreeExile\.agents\teamwork\explorer_survey_3\analysis.md

Your Exclusive Write Ownership:
- tests/e2e_cocos/test_vfx_texture_atlas_pipeline_e2e.py
- TEST_INFRA.md (at project root c:\Projects\FreeExile\TEST_INFRA.md)
- TEST_READY.md (at project root c:\Projects\FreeExile\TEST_READY.md)

Your Tasks (E2E Testing Track):
1. Author `TEST_INFRA.md` following the 4-tier methodology (Category-Partition, Boundary Value Analysis, Pairwise Combinations, Real-World Workloads) for the PBR PoT VFX Atlas and Cocos 3.8 / Apple Metal pipeline.
2. Implement comprehensive, opaque-box E2E test suite in `tests/e2e_cocos/test_vfx_texture_atlas_pipeline_e2e.py`:
   - Tier 1: Feature Coverage (verify all 12 active skills + 5 support sigils present in atlas and manifest, dimensions are Power-of-Two 1024x1024 or 2048x2048, Albedo + Tangent Normal Map exist, ASTC file generated, Monster/Character scaffolding exists).
   - Tier 2: Boundary & Corner Cases (edge texels dilation padding check: non-zero RGB on boundary with alpha=0, Tangent Normal map Blue channel mean > 128.0, UV bounds [0, 1], frame sizes match, pivot is [0.5, 0.90]).
   - Tier 3: Cross-Feature Combinations (Skill + Support Sigil animation sequence compatibility, Normal map tangent vector unit length check, Cocos & WebApp manifest format compatibility).
   - Tier 4: Real-World Workload Scenarios (Full combat loadout sequence simulation Q/W/E/Space, Cocos Creator TypeScript compilation check `npm run build:web` with exit code 0).
3. Execute the tests via `pytest tests/e2e_cocos/test_vfx_texture_atlas_pipeline_e2e.py -v`.
4. When tests are authored and ready, publish `TEST_READY.md` summarizing the test runner command, tier breakdown, and test counts.
5. Deliver handoff.md in your working directory and notify parent orchestrator.