DeFi community discussions on September 21, 2026 cover Cardano's low DeFi audit score of 51.3/100 compared to Ethereum's 96.3, collaborations on Hedera's DeFi platforms, and concerns about malicious hooks in Uniswap v4 where 54% of analyzed hooks were identified as potentially harmful.
A CTO roundtable discussion reveals that coding agents pose unique security challenges because they hold user authority (filesystem, credentials, repositories) while receiving instructions from multiple sources. The article argues that critical rules—called invariants—should be enforced through system controls like permissions, hooks, and sandboxes rather than relying on prompt instructions, which models can ignore or be manipulated into violating.
never-again is a tool that prevents AI coding agents from repeating fixed bugs by automatically creating git hooks or adding rules to a file. It runs locally without accounts or tracking, works on macOS, Linux, WSL, and Windows, and requires git, bash, and Python 3.7+.