We open-sourced a DeFi transaction builder for AI agents. No black box. No hidden API calls. Protocols are JSON playbooks. Resolvers handle token addresses, decimals, slippage, approvals. You get deterministic unsigned tx data back.                                                                                                                                                                                                                       44 actions across 12 protocols. Adding a new one is a JSON file. https://defi-skills.nethermind.io/(Nethermind)