Cheatcalls EIP by Kris Kaczor | Devcon SEA

Thu, Oct 2, 2025, 12:00 AM

Development nodes, such as Anvil, Hardhat, and Tenderly, provide specialized methods to manipulate blockchain state. For example, the `anvil_setCode` method allows arbitrary overriding smart contract code. Unfortunately, each node implements a slightly different set of methods with varying behaviours, resulting in wasted development hours and potential vendor lock-in. In my talk, I introduce a new EIP that proposes standardized `cheat_*` methods with well-defined interfaces and behaviour. Speaker(s): Kris Kaczor Skill level: Intermediate Track: Developer Experience Keywords: Developer Infrastructure, DevEx, Best Practices, hardhat Follow us: https://twitter.com/efdevcon, https://twitter.com/ethereum, https://warpcast.com/devcon Learn more about devcon: https://www.devcon.org/ Learn more about ethereum: https://ethereum.org/ Visit the https://archive.devcon.org/ to gain access to the entire library of Devcon talks with the ease of filtering, playlists, personalized suggestions, decentralized access on Swarm, IPFS and more. Devcon is the Ethereum conference for developers, researchers, thinkers, and makers. Devcon SEA was held in Bangkok, Thailand on Nov 12 - Nov 15, 2024. Devcon is organized and presented by the Ethereum Foundation. To find out more, please visit https://ethereum.foundation/