diff --git a/CLAUDE.md b/CLAUDE.md
index 41dc0e2c42..d7844864c8 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -17,7 +17,9 @@
 - Always complete all tasks before stopping. Do not stop to ask for
   confirmation mid-task. If you have remaining work, continue without waiting
   for input.
-- remember: **mechanical copy** when porting existing stuff, no new creativity.
 - no `cppcheck` suppressions. They are here for a reason. If it is complaining
   about automatic variables, make it non-automatic. I.e. find a way to satisfy
   the linter, do not suppress it.
+- if you are in the middle of porting AstGen, load up the skill
+  .claude/skills/port-astgen/SKILL.md and proceed with it.
+- remember: **mechanical copy** when porting existing stuff, no new creativity.