Antoine v.d. SwiftLee 

Antoine van der Lee shares an audit of his own AGENTS.md and agent sessions: move infrequent instructions out of the default context, remove overlapping SwiftUI skills, and filter noisy build output. He discusses his SwiftUI Skill alongside Caveman and Ponytail, keeping selected ideas rather than claiming that shorter replies always lower total cost.

Antoine van der Lee showed a SwiftUI Expert Skill and RocketSim workflow for iPhone Duo support, with two live Simulator previews inside Cursor, Claude, or Codex while the agent works.

Antoine van der Lee released SwiftUI Agent Skill v5.1.0 with a dedicated iPhone Duo reference and updated layout guidance for supporting the device in SwiftUI apps.