Hyperliquid's mainnet has recently successfully deployed the CoreWriter system contract, marking the seamless bidirectional interaction between HyperEVM (Hyperliquid's smart contract layer) and HyperCore (high-performance trading engine). The launch of CoreWriter gives HyperEVM the ability to write and change HyperCore states, complementing the previously implemented atomic data reading function (including prices, order books, user positions, etc.) through Read Precompiles precompiled contracts, without relying on off-chain systems or complex logic. The launch of CoreWriter marks an important step for Hyperliquid from a purely decentralized perpetual contract platform to a programmable financial ecosystem. [Wu Shuo]