diff --git a/lib/formula-session.sh b/lib/formula-session.sh
index b0406d2..917d623 100644
--- a/lib/formula-session.sh
+++ b/lib/formula-session.sh
@@ -339,6 +339,7 @@ profile_load_lessons() {
     local lessons_content
     lessons_content=$(head -c 2048 "$lessons_file" 2>/dev/null) || lessons_content=""
     if [ -n "$lessons_content" ]; then
+      # shellcheck disable=SC2034  # exported to caller for prompt injection
       LESSONS_CONTEXT="## Lessons learned (from .profile/knowledge/lessons-learned.md)
 ${lessons_content}"
       log "profile: loaded lessons-learned.md (${#lessons_content} bytes)"