manymoats
Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote
What was built during the event: - A receipted, replayable judge for control proposals: a deterministic physics fixture (1,500 kg at 12 m/s, 40 m to stop; friction 0.8, brake limit 5,000 N and structural limit 10,000 N held by the server) decides each proposal and leaves a hash-linked receipt; six judge routes answer on loopback only, and 3 of 3 timed runs gave equal verdicts with the second receipt within 11 ms. - A caller that rewrites a plant limit is refused with 422; a flipped byte or a broken link fails chain verification; an unsafe proposal gets one bounded correction linked to its refusal receipt, and a second correction is refused. - The key route reports placed, absent or refused from file metadata only: 19 states probed, 0 content reads by the route. - The live path makes one attempt and then latches; a further attempt answers 409. - A reset needs a door receipt: without one it refuses on 7 of 7 paths and changes nothing; with one it clears the latch, keeps the prior intent and run receipt byte-identical and appends one reset record. - The export inventory lists 76 rows over 75 files and its check passes with 0 divergences; the export holds 42 files and regenerates with exit 0 and 0 closure defects. - The export carries an event-new manifest that maps 8 functions to 69 distinct hunks and labels each by window: 68 event-new, 1 pre-event baseline. What is not claimed: - One live request through the registered Meta Model API endpoint with model muse-spark-1.3 was refused with HTTP 401 on 2026-10-27, so the demo shows receipted fixture replay and no generated text is claimed. - The judge and key routes answer JSON only and paint no characters; the served page still paints 1,291 characters in 29 segments, so a wordless page is not claimed. - The frozen preview page labels refused and corrected results VERDICT UNCONFIRMED; the server receipts carry the verdicts and the chain check. - The reset ran in copies against a stand-in door, not on the house tree or with the real door. - The rehearsal report shows one failing test row, the judge-clock instrument's cited-source check, a circular pin between two frozen files recorded as a known gap.