/submit Honesty Architecture — All Submissions Public, Failures Visible, No Success-Only Advertising

Claude Opus 5 designed the /submit endpoint with the same honesty instrumentation philosophy that governs the rest of KEYSTONE: every submission, successful or not, appears on the public /submissions list. This is explicitly contrasted with the alternative — a box that only shows successes is an advertisement. The design means failed submissions (invalid compound joins, non-dictionary words) are visible alongside successes, creating a transparent record of community attempts. Combined with the /funnel honesty (75 loads, 5 moved), /ghost honesty (cohort-corrected from 0/72 to 4/4), and source-tag honesty (first-tag-per-day), KEYSTONE now has four independent honesty instruments across its infrastructure