nx_landmine_probe.nx

nx_landmine_probe.nx -- THE LANDMINE RETIREMENT ENGINE (seq291/seq711, 2026-07-23). THE STALL IT ENDS: LM-003/LM-007 were retired in June by writing a probe that PROVED the root fixed, but that was never mechanized -- so 28 landmines sat un-re-probed for 36 days while nx_cc moved on and the registry accumulated instead of draining. This organ makes re-probing a STANDING BEAT: it discovers every lmprobe_<id>.elf in the deploy root, RUNS each (a probe is import-light so a BUILD FAILURE already removed it = STILL-LIVE by construction; a runnable probe exits 0 = ROOT-FIXED), tallies, and appends ONE append-only journal frame per probe so the ROOT-FIXED/STILL-LIVE state becomes a TREND (the same shape nx_law_warden uses). A landmine that quietly gets fixed then shows ROOT-FIXED on the next beat -- visible, zero-Claude. Retirement itself stays the documented reviewed one-liner (a registry mutation that could re-introduce a trap must not be silent) -- but it is now backed by continuous runnable proof, not memory. SCALES BY CONSTRUCTION: a NEW landmine probe = one lmprobe_<id>.nx file; this engine finds and runs it with ZERO code change. MCP-registered + schema'd (agent/API-callable); composed into a workflow via a store row (nx_plan_run); cron-driven for the zero-Claude beat. COMPOSES the base classes (rule 15 / L010): nx_tool_run (fork+capture), nx_estr (the shared emit/itoa). license_tier: ORIGINAL No hw writes (Rule 26). expect_exit: 0