diff --git a/.gitignore b/.gitignore
index 9983978..1e778a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -63,3 +63,4 @@ tools/prompt_injection_tester/.coverage
 .claude/settings.json
 tools/prompt_injection_tester/CLI_SPECIFICATION.md
 tools/prompt_injection_tester/CLI_ARCHITECTURE.md
+tools/prompt_injection_tester/PHASE1_COMPLETE.md