diff --git a/.gitignore b/.gitignore
index 3dd4d1d..b00de75 100644
--- a/.gitignore
+++ b/.gitignore
@@ -220,3 +220,8 @@ data/
 
 # Local tracer-bullet tickets and scratch work
 .scratch/
+
+# Private working notes and per-editor assistant configuration. Local only.
+.claude/
+.cursor/
+AGENTS.md