nx_forkfresh_gate.nx

nx_forkfresh_gate.nx -- THE REFEREE FOR FORK FRESHNESS (nx_forkfresh_lib), 2026-08-31. IN-PROCESS over nx_forkfresh_lib.nx, deliberately. Nothing can import a main(), and a gate that fork/execs the deployed nx_compare_regen.elf reports NOT-REACHED for every mutant -- its GREEN would prove nothing about the code under test. organ_gate.conf carries that reasoning five times over. SCOPE, STATED SO IT CANNOT BE OVER-READ: this proves the DECISION CORE -- path derivation, the digest ruler, the four-state classification and the abstention contract. It does NOT prove the nx_compare_regen emit loop, its watchlist pass or its census; those stay unreferee'd and are the next rung, not a claim being made here. FIXTURES LIVE IN /tmp/nx_forkfresh_gate/ AND NEVER IN knowledge/store/: a gate that shares its fixture with a production beat reports on the fixture, not on the code (measured estate-wide, ratcheted). Setup truncate-writes every fixture it needs on every run, and the two ABSENT fixtures are absent BY CONSTRUCTION -- they are paths this gate never creates -- so the run is idempotent without a teardown. A gate that is not idempotent reports on its first run and lies about every run after. license_tier: ORIGINAL No hw writes (Rule 26). expect_exit: 0