1) crontab line (research-box root):
7-59/10 * * * * cd /root/tm/sig2k && /usr/bin/flock -n /tmp/tmsig2k.lock /usr/bin/timeout 280 /usr/bin/nice -n 10 /usr/bin/python3 -I sig2k.py sig2k > run.log 2>&1 && scp -q pub.md main:/opt/launchwatch/pub/hx-c9ois/fw/tm-sig2k.md   # testmgr4 #4507 sig2k
2) append to registry.json tests[]: {"id":"sig2k","name":"sig2k kit 5-min entry (cap>=20k)","sub":"Testmgr4 · miss family","idea":"#810","status":"active","since":"30 Oct","trades":"/root/tm/sig2k/trades.csv","main_arm":"A","arm_notes":{"A":"v4 native nohook, first cap 2.2-2.5k, enter 5min if cap 20-300k, exit 15min"},"report":"/root/tm/sig2k/pub.md","kill":"fwd n>=15: kill if mean<1.05","hunt":{"entry":"5 min","cap_in":"20k-300k","target":"1M"},"expected_per_day":2,"blocker":"no replay (tape gap 14-28 Oct); forward only","audit_ready":false,"owner":"testmgr4","verified":false,"x_col":"net_x","arm_col":"arm"}
3) ledger set 810 --stage paper --reason "sig2k built, forward only (tape gap)"
Safe: paper only, reads /opt/sw/v4tape read-only, niced, flock, <5 min per run.