# Progress Tracking - explorer_m4_2

Last visited: 2026-10-01T21:45:00Z
Status: Completed

## Current Tasks
- [x] Step 1: Initialize DISPATCH.md and update BRIEFING.md
- [x] Step 2: Read requirements and documentation:
  - [x] `ORIGINAL_REQUEST.md` (section R4)
  - [x] `PROJECT.md` (Milestone 4 Fog of War architecture)
  - [x] `GEMINI.md` & `AGENTS.md` (Hygiene and line caps)
- [x] Step 3: Inspect existing `client/webapp/js/ui/war_fog_renderer.js`
- [x] Step 4: Inspect `world_renderer.js`, `entity_renderer.js`, `monster_system.js`, and `canvas_renderer.js`
- [x] Step 5: Design zero-heap 2-pass batch diamond path renderer with 2:1 isometric radial vignette falloff
- [x] Step 6: Formulate comprehensive entity suppression rules (monsters, NPCs, loot drops, combat target acquisition, props, waypoints, boss gates)
- [x] Step 7: Create proposed replacement `proposed_war_fog_renderer.js` (191 lines <= 250 lines cap)
- [x] Step 8: Create unified diff patch `war_fog_renderer.patch`
- [x] Step 9: Build and run test harness `test_proposed_renderer.js` confirming draw calls <= 3 and zero heap allocation
- [x] Step 10: Produce in-depth `report.md` and 5-component `handoff.md`
- [x] Step 11: Notify parent orchestrator via send_message