ReturnWitness
Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

A returns lead at an online store that ships multi-item kits can't tell at the bench whether a returned box is complete. My seeded store, Brindlewood Camera Co., ships a $340 kit: body, zoom lens, charger. A box comes back, a scan says received, the full refund goes out; if the lens stayed behind, the store paid $340 for two thirds of a kit and cannot prove it. ReturnWitness films the unboxing under a fixed overhead camera. SAM 3.1 segments and tracks every item, hand and sheet of paper; my app code counts an item only once it settles in the inspected tray, so a covering hand or a re-issued track ID can't double-count, then reconciles it against the packing slip and policy. Muse Spark 1.3 reads each serial label against the slip, open-weight readers audit the crops, and Muse Wonder 1.0 drafts the decision citing the policy clause. Any unobserved line, unread label or doubting reader makes the case HELD: never auto-denied, never auto-paid. A person reviews the evidence and releases the refund with a single-use, evidence-bound token, in Stripe test mode. On my two filmed returns, the missing-lens kit was held correctly; the complete kit was a false hold, because two readers called the real compact film camera, a stand-in prop, a toy. A doubt can hold money, never release it, and a person decides. Live: https://returnwitness.vercel.app Posts: X https://x.com/SidraMiconi/status/2117756371097837610 · AgentGlass on X https://x.com/AgentGlassInc/status/2117756839328968900 · Instagram https://www.instagram.com/reel/DfTFNcuyMDC/ · LinkedIn https://www.linkedin.com/feed/update/urn:li:activity:7523525233874657280/ · YouTube https://youtu.be/Jg2yhBP1V44