diff --git a/bin/codex-skills-sync.sh b/bin/codex-skills-sync.sh
index 1eb73b8..88fcb1a 100755
--- a/bin/codex-skills-sync.sh
+++ b/bin/codex-skills-sync.sh
@@ -42,6 +42,13 @@ if ! command -v rsync >/dev/null 2>&1; then
   exit 3
 fi
 
+# Skip on CI environments where ~/.codex is not present and CODEX_HOME is not set.
+# Codex skills sync is a local developer tool; CI runners do not have a Codex installation.
+if [[ -z "${CODEX_HOME:-}" ]] && [[ ! -d "${HOME}/.codex" ]]; then
+  echo "[SKIP] Codex home not found and CODEX_HOME not set — skipping on this host."
+  exit 0
+fi
+
 script_dir="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
 repo_root="$(cd -- "${script_dir}/.." && pwd)"
 source_dir="${repo_root}/.agents/skills"