The fleet is uniform on jq 1.7 per the job logs; 1.6 stays in the set only because the image tag is unpinned. Real-jq 1.6 coverage is currently absent, and the shims cover only the empty-input -e quirk, not the NUL or parse-error ones. Measurement dated by the job date. Remaining "runner's jq 1.6" comments reworded. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: f9ce6bc6-5b36-491a-8d72-89c1f70dd3e1