“PERMISSIONS” LAYER OF CHAIN ABSTRACTION FRAMEWORK EXPLAINED

Summary from the TLDR Crypto newsletter

The CAKE (Chain Abstraction Key Elements) framework creates four layers of responsibility – applications, permissions, solvers, and settlement – that are independent of one another but critical for a clean crypto UX. The “permissions” layer deals with user transaction authorization and private key storage. Though current methods like MetaMask require both a “sign” and “submit” step, account abstracted (AA) wallets only require “sign.” Going one step further, policy-based agents require one “approve” step and then deal with everything else, like managing multiple networks and sub-transactions. This is the design employed by Telegram bots and Flashbots' SUAVE.