diff --git a/docs/ARCHITECTURE.md b/docs/ARCHITECTURE.md
index f856446..bd48560 100644
--- a/docs/ARCHITECTURE.md
+++ b/docs/ARCHITECTURE.md
@@ -108,7 +108,7 @@ harb/
 │   │   │   ├── helpers/stats.ts  # Ring buffer logic
 │   │   │   ├── lm.ts             # LiquidityManager indexing
 │   │   │   └── stake.ts          # Stake indexing
-│   └── txnBot/        # Bot: generates swap txns to simulate market activity on local fork
+│   └── txnBot/        # Automation bot: calls recenter() and payTax() on profitable opportunities
 ├── landing/           # Landing page (Vue 3)
 │   ├── src/
 │   │   ├── components/  # LiveStats, KFooter, WalletCard, etc.