PlatypusDB is an agent-native, bitemporal event database: Gleam (OTP) control plane over a Zig data plane, in-process with WunderOS. Custom-built, not assembled, for agentic workloads inside WunderOS. The Merkle WAL is the database. Graph, vector, versioned-tree, image, and analogy views derive from it. Datalog queries and rules read it crisply. VSA resonance reads it fuzzily. The whole database replays deterministically and is fuzzed by a TigerBeetle-style VOPR. PlatypusDB is one write path, two clocks, zero glue code.