Fog of war: underground is black until the bot has seen it (t8)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tasks/t8_fog_war_unexplored.md

@@ -1,9 +1,18 @@
 ---
 id: t8
 title: Fog of war for unexplored areas
-status: Todo
+status: Review
 created: 2026-10-24
-updated: 2026-10-24T04:41:45Z
+updated: 2026-10-24T05:37:34Z
+order: 2
+report: |
+  (agent) Fog of war. Underground is black until the bot has seen it: it sees in straight
+  lines through air, water and gas, about 48 grains, and a few grains into the rock it looks
+  at. What you've seen stays seen and is saved with the world. The sky and surface start
+  seen. Hover info says "Unexplored" in the black. Settings > Game > Fog of war turns the
+  drawing off (exploration is still kept). Older worlds: the area around everything you've
+  built and around the bot is revealed when loaded.
+  To check: new world, dig down, look along a tunnel and into a cave. Try both looks.
 ---
 
 ## Context