# Progress Log — Explorer 2 (Milestone M4)

Last visited: 2026-10-09T07:54:00Z
Status: Completed

- [x] Received dispatch for Milestone M4 (Assembly, Exports & E2E Testing Strategy)
- [x] Appended dispatch message to `DISPATCH.md` with timestamp header
- [x] Read `ORIGINAL_REQUEST.md`, `PROJECT.md`, `AGENTS.md`, and `05_Production_Pipeline/audio_continuity_engine.py`
- [x] Mapped 10 Scenes of Ep01: `ep01_scene01` to `ep01_scene10` (140 shots total = 23m20s)
- [x] Analyzed asset & export directories: `04_Assets/videos/`, `06_Exports/`, `04_Assets/archive/ep01_legacy_v1/`
- [x] Verified existing pipeline implementations (`production_orchestrator.py`, `assemble_ep01_feature.py`, `audio_continuity_engine.py`, `antigravity_critic_gate.py`)
- [x] Designed E2E dry-run test suite architecture for M4 (`tests/test_production_pipeline_m4.py`) with 5 comprehensive test groups
- [x] Benchmarked synthetic media generation & loudnorm normalization (< 1s per clip, -14.01 LUFS achieved)
- [x] Drafted technical blueprint in `c:\Projects\KieuStory\.agents\teamwork\explorer_m4_2\m4_assembly_test_blueprint.md`
- [x] Updated `c:\Projects\KieuStory\.agents\teamwork\explorer_m4_2\BRIEFING.md` preserving locked sections
- [x] Authored 5-component handoff report in `c:\Projects\KieuStory\.agents\teamwork\explorer_m4_2\handoff.md`
- [x] Ready to notify parent orchestrator