Throw a Fleet-Wide Light Show

Lights are ordinary fitted modules. That makes them useful for status indicators, formation signals, and the sort of dance party mission control will deny approving.

Find the lights

find /sim/vessels/by-id -path '*/lights/*/on' -print

Change several in one frame

/sim (in guest)

cat > /sim/ctl/batch <<'EOF'
vessels/by-id/Hunter/lights/0/on 1
vessels/by-id/Polaris/lights/0/on 1
commit
EOF

HTTP (host)

curl -X POST http://127.0.0.1:4242/v1/fs/ctl/batch \
  --data-binary $'vessels/by-id/Hunter/lights/0/on 1\nvessels/by-id/Polaris/lights/0/on 1\ncommit\n'

The filesystem batch is what makes independent leaf writes land in the same game tick. For a timed pattern, use /sim/ctl/timed_batch or the dancy-party-rs console.

Modules are conditional

A vessel with no light module has no lights/ entries. Discover first; do not assume index 0 exists on every craft.

Batch referenceSame-tick groups, timed playback, phases, caps, and errors.