diff --git a/.gitignore b/.gitignore
index 6c89d15..331d132 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,12 @@
 # OS
 .DS_Store
 Thumbs.db
+
+# Agent / AI-tool artifacts — never commit (zero AI trace).
+.claude/
+.agents/
+.cursor/
+.aider*
+.continue/
+.playwright-mcp/
+**/*-mcp/