nx_janitor_caps_gate.nx

nx_janitor_caps_gate.nx -- proves the silent-truncation CAP detector (nx_cap_detect_lib) has TEETH and NO false positives on its discriminators. In-memory fixtures (no /tmp): one POSITIVE that MUST flag, and four NEG-CONTROLS that MUST NOT -- data-driven size, no-source, byte-buffer(no '*'), and shift-not-bound. The fixtures are code-representing strings passed straight to the CORE scan (the gate does NOT strip -- the sweep strips real files; here the string IS the simulated code). GREEN iff all six checks pass. MIGRATED ONTO THE BASE CLASS 2026-09-05: the hand-rolled "--- 6/6 GREEN" line was unreadable to every rollup, and the compare evidence census read this gate as GREEN at pass=0/0 -- a vacuous row, a green with no visible teeth. gv_check_eq asserts AND emits actual/expected in one call so the published number and the tested number cannot drift; the neg-controls are NAMED so the census can count them; the exit code carries the verdict. license_tier: ORIGINAL | genealogy_id: nishi_janitor_caps_gate_2026_07_15