diff --git a/.gitignore b/.gitignore
index 770239c..0b6af92 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1159,3 +1159,6 @@ compose.override.yaml
 
 ## Generated per-project GitVersion config (rendered from GitVersion.template.yml)
 src/*/GitVersion.yml
+
+## Copilot agent scratch/research notes (ephemeral, not project documentation)
+.copilot-tracking/