diff --git a/.gitignore b/.gitignore
index 47b083c..5bb3e15 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,16 @@
+# Internal Agent Files (never public)
+.agent/
+.claude/
+.kiro/
+.cursor/
+
+# Internal Reports & Handoffs
+HANDOFF-*.md
+SPRINT_REPORT_*.md
+*REPORT_*.md
+ARTEFACT-*.md
+*INTERNAL*.md
+
 # Rust
 target/
 **/*.rs.bk