diff --git a/.gitignore b/.gitignore
index 14e72d2..c49dda9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,4 +29,15 @@ coverage/
 
 # Misc
 .tmp/
-.temp/
\ No newline at end of file
+.temp/
+
+# Secrets — never commit
+mnemonic.txt
+.secrets/
+*.mnemonic
+
+# Runtime state (contains transaction history)
+vector-audit-log.json
+
+# Incremental typecheck cache (npm run typecheck uses --incremental)
+*.tsbuildinfo
\ No newline at end of file