nx_didyoumean_gate.nx

nx_didyoumean_gate.nx -- GATE for SEARCH RUNG F4, the did-you-mean line (nx_didyoumean + the seg's contract symbol dss_spell_suggest), judged on the LIVE term dictionary of the public web shard. PRE-DECLARED BEFORE THE FIRST RUN (the rung's own done-rule, 2026-09-18): a planted set of 10 misspellings corrects at least 9 to the intended word, while a control of 10 correctly spelled RARE terms draws no suggestion. - THE PLANTED SET is ten entries of the published common-misspelling lists, chosen to span the four one-edit mechanisms (two swaps, two substitutions, four insertions, two deletions) and for nothing else. - THE CONTROL is the first ten words of a pre-declared, ordered reserve of real English words that the live dictionary HOLDS and rates RARE by the same midpoint the suggester uses -- selected by document frequency alone, never by what the suggester does with them. If fewer than ten qualify, the control is not the population the rule names and the gate says SKIP rather than guess. - TWO PANELS PRINT AND DO NOT VOTE: ten more common misspellings (held out: nothing was tuned on them) and eight short rare words, the class the lib's documented imprecision is about. Their counts ride the values block, so a change in either is visible without being dressed as a verdict. The arithmetic (the majority rule, the midpoint, the lookup envelope) is pinned before the live dictionary judges anything, and every live row prints its document frequencies, its lookups and its microseconds. license_tier: ORIGINAL No hw writes (Rule 26). Read-only on the shard.