diff --git a/.gitignore b/.gitignore
index 2ad33ce..718aba2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,4 +10,10 @@ __pycache__
 *.log*
 _trial_temp.lock
 build/
-.DS_Store
\ No newline at end of file
+.DS_Store
+
+# Generated by sync-copilot-to-claude.py from .github/copilot-instructions.md
+CLAUDE.md
+# Generated by sync-copilot-to-claude.py from .github/.mcp.json (Claude Code MCP config)
+.mcp.json
+.mcp.json.generated_by_sync