Lane L3 needed to watch the trade-route and spy-program vectors across a whole game
played forward, not one turn of one save. `modcount` and `tshn` arm once on purpose --
their targets are picked from one turn's state and re-picking them would move the
measurement -- so this is a third mode rather than a change to either.
`cont` puts all four debug slots on the two containers, `_Myfirst` as well as `_Mylast`.
Both vectors are default-constructed with all three pointers zero, so the first element
writes all three: watching only `_Mylast` cannot separate "allocated for the first time"
from "appended to an existing buffer", and those are different events in the model this
lane set out to falsify. It re-arms and re-logs on every End Turn, and the canary
self-test's counter is therefore read as a delta -- on the arm-once modes the delta is
the old value, so their log lines are byte-identical.
`ReportContainer` is factored out of `ArmTshnSlots` so both modes emit the same container
line. Lane W3's published count=0 is the control every later count is compared against,
and a reformatted line would have made that comparison a judgement call.
The defect: `Shim_Init` returned before `install_watchpoints` whenever the trace mode was
`off`, so `hooks=off watch=on` printed `watch=on` in the banner and armed absolutely
nothing -- a config that reports a confident zero, which is the failure method rule 1
exists to catch. The watchpoints are an independent instrument with their own arming
detour and no trace records, and a long play session wants them without paying 30-45 s
per End Turn for template hooks that measure nothing it is asking about. MinHook is now
initialised and the module installed on the `hooks=off` path when `watch=on`.
Configs: shim.cfg.l3cont / .l3control differ in exactly one key for rule 19;
.l3probe is lane H's hp11 verbatim plus the three watch keys, so the entry counts stay
comparable to lane H's empty-container baseline line for line.
Gates: clean_room_check OK; host ctest 54/54; CT111 shim cross-build OK, exports 66
names identical.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ARBgSooAfokKUy6wKUKEyZ
6699f543bc