diff --git a/.gitignore b/.gitignore
index e6403d6..6862d05 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,6 +22,9 @@ graphify-out/
 # Serena MCP local tooling state (per-machine project config and cache)
 .serena/
 
+# Machine-local agent instructions (personal workflow; not for publication)
+CLAUDE.local.md
+
 # RustRover
 #  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
 #  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore