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Dealmatch

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

Dealmatch — Demo video

DealMatch Assistant is an agentic, grounded assistant for DealMatch’s two doors, Places (shortlets, houses, hostels) and People (artisans, tutors, home services), in Nigeria. It reads a request in English or Nigerian Pidgin, plans, calls tools, and answers only with claims backed by an evidence ledger tagged verified, stated or inferred. A code-level guard, not the model, blocks replies that leak private contact details (contact is released only inside DealMatch’s protected payment flow) or that make unsupported claims. The existing DealMatch marketplace (dealmatch.com.ng) predates the hackathon and is used only as a labeled data and trust backend. Built this week: the Muse Spark adapter, agent loop, tool schemas, guard, evidence ledger, trace console, and a 69-case evaluation harness. Across 69 real-model cases the guard let through zero contact leaks.

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