diff --git a/src/clickthrough/ALLOWLIST.md b/src/clickthrough/ALLOWLIST.md
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+# Clickthrough GO Allowlist Research
+
+Objects that should be valid click-through targets (click through players/units to reach these).
+
+Source: TortoisWoW server at `/home/august/projects/tortoise-wow/`
+
+## Allowed by GO Type
+
+### Type 19 — MAILBOX (all entries)
+| Entry | Name |
+|-------|------|
+| 142102 | Dwarven Mailbox |
+| 142109 | Ornamental Mailbox |
+| 143983 | Carved Mailbox |
+| 144112 | Mechanical Mailbox |
+| 144131 | Alliance Mailbox |
+| 173221 | Horde Mailbox |
+| 177044 | Damaged Mailbox |
+| 179895 | Primitive Mailbox |
+| 1000391 | Creaking Mailbox |
+| 2011101 | Highborne Mailbox |
+| 2011102 | Illidari Mailbox |
+| 2011103 | Warden Mailbox |
+| 3000208 | Thalassian Mailbox |
+
+### Type 18 — SUMMONING_RITUAL (all entries)
+| Entry | Name |
+|-------|------|
+| 1000084 | Refreshment Table (mage conjured table) |
+| 36727 | Summoning Portal (warlock Ritual of Summoning) |
+| 179944 | Meeting Stone Summoning Portal |
+| 1000089 | Soulwell (healthstone dispenser) |
+
+### Type 2 — QUESTGIVER (all entries)
+| Entry | Name |
+|-------|------|
+| 1000333 | Goblin Brainwashing Device |
+
+## Allowed by Entry (type 1 BUTTON — ambiguous, also used for BG banners)
+| Entry | Name |
+|-------|------|
+| 1000083 | Refreshment Portal (ritual click target) |
+| 1000087 | Soulwell Portal (ritual click target) |
+
+## Allowed by Entry (type 10 GOOBER — also used for AB neutral banners)
+| Entry | Name |
+|-------|------|
+| 181575 | Naxxramas Portal — Arachnid wing end |
+| 181576 | Naxxramas Portal — Construct wing end |
+| 181577 | Naxxramas Portal — Plague wing end |
+| 181578 | Naxxramas Portal — Military wing end |
+
+All four cast spell 28444, teleporting to central hub (3005.8, -3434.3, 294).
+Controlled by instance script `SetTeleporterState` — `GO_FLAG_NO_INTERACT` removed on wing boss DONE.
+
+## Naxx Wing-End Visual Effects (type 0 DOOR, NOT interactable)
+Hub ramps: 181210, 181211, 181212, 181213
+Boss rooms: 181230, 181231, 181232, 181233
+Hub-to-Frostwyrm portal: 181229 (visual only, teleport via area trigger 4156)
+
+## NOT Allowed (type 1 BUTTON examples — BG capture/assault)
+AB: 180058, 180059, 180060, 180061
+AV: 178364, 178365, 178388, 178389, 178925, 178929, 178936, 178940, 178943,
+    179286, 179287, 180418, 180419, 180420, plus tower BIG banners
+
+## Decorative / Non-interactable (type 5 GENERIC, excluded)
+2000241, 2000259, 2004928, 2005008, 2005009, 2008883, 181810
diff --git a/src/clickthrough/BG_OBJECTS.md b/src/clickthrough/BG_OBJECTS.md
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+# Battleground Interactable Game Objects
+
+Research from TortoisWoW server source (`/home/august/projects/tortoise-wow/`).
+
+## Warsong Gulch (Map 489)
+
+### Flags
+| Entry | GO Type | Description |
+|-------|---------|-------------|
+| 179830 | 24 FLAGSTAND | Silverwing Flag (Alliance at base) |
+| 179831 | 24 FLAGSTAND | Warsong Flag (Horde at base) |
+| 179785 | 26 FLAGDROP | Silverwing Flag (dropped) |
+| 179786 | 26 FLAGDROP | Warsong Flag (dropped) |
+
+### Buffs (proximity-triggered, type 6 TRAP)
+179871 (Speed), 179904 (Food/Regen), 179905 (Berserk)
+
+### Doors (type 0, auto-open, not player-interactable)
+179916–179921
+
+## Arathi Basin (Map 529)
+
+### Neutral Node Banners (type 10 GOOBER)
+180087 (Stables), 180088 (Blacksmith), 180089 (Farm), 180090 (Lumber Mill), 180091 (Mine)
+
+### Faction Banners (type 1 BUTTON)
+180058 (Alliance occupied), 180059 (Alliance contested), 180060 (Horde occupied), 180061 (Horde contested)
+
+### Doors (type 0)
+180255 (Alliance), 180256 (Horde)
+
+### Aura GOs (type 6, visual only)
+180100, 180101, 180102
+
+## Alterac Valley (Map 30)
+
+### GY/Tower Banners (type 1 BUTTON)
+178364, 178365, 178388, 178389, 178925, 178929, 178936, 178940, 178943,
+179286, 179287, 180418, 180419, 180420
+
+### Tower Banners BIG (type 1 BUTTON)
+178927, 178932, 178947, 178948, 178955, 178956, 178957, 178958,
+179436, 179440, 179442, 179444, 179446, 179450, 179454, 179458
+
+### Mine Supplies (type 3 CHEST)
+178784, 178785, 178786, 178787, 178788, 178789
+
+### Faction Banners (type 3 CHEST)
+179024, 179025
+
+### Steamsaws (type 3 CHEST)
+178664, 178665
+
+### Snowdrift (type 3 CHEST)
+180654
+
+### Special (type 10 GOOBER)
+178584 (Ryson's All Seeing Eye)
+
+### Landmines (type 6 TRAP)
+179324, 179325
+
+## Sunnyglade Valley (Custom BG)
+
+Reuses AB entries (180087, 180058–180061) plus:
+- 179311 (type 3 CHEST)
+- 2000381 (type 5 GENERIC, flag stand visual, not interactable)
+
+## Source Files
+- `src/game/Battlegrounds/BattleGroundWS.h`
+- `src/game/Battlegrounds/BattleGroundAB.h`
+- `src/game/Battlegrounds/BattleGroundAV.h`
+- `src/game/Battlegrounds/BattleGroundSV.h`